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Merge pull request #43 from fperrad/20151127_lint

Browse Source 
lintings and more

This fixes #71
This commit is contained in:
Steffen Jaeckel 2017-10-15 22:35:08 +02:00 committed by GitHub
commit faea5da30a
75 changed files with 289 additions and 289 deletions
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4
bn_error.c
View File

@ -27,10 +27,10 @@ static const struct {
/* return a char * string for a given code */ /* return a char * string for a given code */
const char *mp_error_to_string(int code) const char *mp_error_to_string(int code)
{ {
int x; size_t x;
/* scan the lookup table for the given message */ /* scan the lookup table for the given message */
for (x = 0; x < (int)(sizeof(msgs) / sizeof(msgs[0])); x++) { for (x = 0; x < (sizeof(msgs) / sizeof(msgs[0])); x++) {
if (msgs[x].code == code) { if (msgs[x].code == code) {
return msgs[x].msg; return msgs[x].msg;
} }

4
bn_fast_mp_invmod.c
View File

@ -59,7 +59,7 @@ int fast_mp_invmod(const mp_int *a, const mp_int *b, mp_int *c)
if ((res = mp_copy(&y, &v)) != MP_OKAY) { if ((res = mp_copy(&y, &v)) != MP_OKAY) {
goto LBL_ERR; goto LBL_ERR;
} }
mp_set(&D, 1); mp_set(&D, 1uL);
top: top:
/* 4. while u is even do */ /* 4. while u is even do */
@ -128,7 +128,7 @@ top:
/* now a = C, b = D, gcd == g*v */ /* now a = C, b = D, gcd == g*v */
/* if v != 1 then there is no inverse */ /* if v != 1 then there is no inverse */
if (mp_cmp_d(&v, 1) != MP_EQ) { if (mp_cmp_d(&v, 1uL) != MP_EQ) {
res = MP_VAL; res = MP_VAL;
goto LBL_ERR; goto LBL_ERR;
} }

12
bn_fast_mp_montgomery_reduce.c
View File

@ -28,7 +28,7 @@ int fast_mp_montgomery_reduce(mp_int *x, const mp_int *n, mp_digit rho)
int ix, res, olduse; int ix, res, olduse;
mp_word W[MP_WARRAY]; mp_word W[MP_WARRAY];
if (x->used > MP_WARRAY) { if (x->used > (int)MP_WARRAY) {
return MP_VAL; return MP_VAL;
} }
@ -77,7 +77,7 @@ int fast_mp_montgomery_reduce(mp_int *x, const mp_int *n, mp_digit rho)
* that W[ix-1] have the carry cleared (see after the inner loop) * that W[ix-1] have the carry cleared (see after the inner loop)
*/ */
mp_digit mu; mp_digit mu;
mu = (mp_digit)(((W[ix] & MP_MASK) * rho) & MP_MASK); mu = ((W[ix] & MP_MASK) * rho) & MP_MASK;
/* a = a + mu * m * b**i /* a = a + mu * m * b**i
* *
@ -106,12 +106,12 @@ int fast_mp_montgomery_reduce(mp_int *x, const mp_int *n, mp_digit rho)
/* inner loop */ /* inner loop */
for (iy = 0; iy < n->used; iy++) { for (iy = 0; iy < n->used; iy++) {
*_W++ += ((mp_word)mu) * ((mp_word)*tmpn++); *_W++ += (mp_word)mu * (mp_word)*tmpn++;
} }
} }
/* now fix carry for next digit, W[ix+1] */ /* now fix carry for next digit, W[ix+1] */
W[ix + 1] += W[ix] >> ((mp_word) DIGIT_BIT); W[ix + 1] += W[ix] >> (mp_word)DIGIT_BIT;
} }
/* now we have to propagate the carries and /* now we have to propagate the carries and
@ -131,7 +131,7 @@ int fast_mp_montgomery_reduce(mp_int *x, const mp_int *n, mp_digit rho)
_W = W + ++ix; _W = W + ++ix;
for (; ix <= ((n->used * 2) + 1); ix++) { for (; ix <= ((n->used * 2) + 1); ix++) {
*_W++ += *_W1++ >> ((mp_word) DIGIT_BIT); *_W++ += *_W1++ >> (mp_word)DIGIT_BIT;
} }
/* copy out, A = A/b**n /* copy out, A = A/b**n
@ -148,7 +148,7 @@ int fast_mp_montgomery_reduce(mp_int *x, const mp_int *n, mp_digit rho)
_W = W + n->used; _W = W + n->used;
for (ix = 0; ix < (n->used + 1); ix++) { for (ix = 0; ix < (n->used + 1); ix++) {
*tmpx++ = (mp_digit)(*_W++ & ((mp_word) MP_MASK)); *tmpx++ = *_W++ & (mp_word)MP_MASK;
} }
/* zero oldused digits, if the input a was larger than /* zero oldused digits, if the input a was larger than

6
bn_fast_s_mp_mul_digs.c
View File

@ -69,15 +69,15 @@ int fast_s_mp_mul_digs(const mp_int *a, const mp_int *b, mp_int *c, int digs)
/* execute loop */ /* execute loop */
for (iz = 0; iz < iy; ++iz) { for (iz = 0; iz < iy; ++iz) {
_W += ((mp_word)*tmpx++)*((mp_word)*tmpy--); _W += (mp_word)*tmpx++ * (mp_word)*tmpy--;
} }
/* store term */ /* store term */
W[ix] = ((mp_digit)_W) & MP_MASK; W[ix] = (mp_digit)_W & MP_MASK;
/* make next carry */ /* make next carry */
_W = _W >> ((mp_word)DIGIT_BIT); _W = _W >> (mp_word)DIGIT_BIT;
} }
/* setup dest */ /* setup dest */

6
bn_fast_s_mp_mul_high_digs.c
View File

@ -60,14 +60,14 @@ int fast_s_mp_mul_high_digs(const mp_int *a, const mp_int *b, mp_int *c, int dig
/* execute loop */ /* execute loop */
for (iz = 0; iz < iy; iz++) { for (iz = 0; iz < iy; iz++) {
_W += ((mp_word)*tmpx++)*((mp_word)*tmpy--); _W += (mp_word)*tmpx++ * (mp_word)*tmpy--;
} }
/* store term */ /* store term */
W[ix] = ((mp_digit)_W) & MP_MASK; W[ix] = (mp_digit)_W & MP_MASK;
/* make next carry */ /* make next carry */
_W = _W >> ((mp_word)DIGIT_BIT); _W = _W >> (mp_word)DIGIT_BIT;
} }
/* setup dest */ /* setup dest */

10
bn_fast_s_mp_sqr.c
View File

@ -70,22 +70,22 @@ int fast_s_mp_sqr(const mp_int *a, mp_int *b)
/* execute loop */ /* execute loop */
for (iz = 0; iz < iy; iz++) { for (iz = 0; iz < iy; iz++) {
_W += ((mp_word)*tmpx++)*((mp_word)*tmpy--); _W += (mp_word)*tmpx++ * (mp_word)*tmpy--;
} }
/* double the inner product and add carry */ /* double the inner product and add carry */
_W = _W + _W + W1; _W = _W + _W + W1;
/* even columns have the square term in them */ /* even columns have the square term in them */
if ((ix&1) == 0) { if (((unsigned)ix & 1u) == 0u) {
_W += ((mp_word)a->dp[ix>>1])*((mp_word)a->dp[ix>>1]); _W += (mp_word)a->dp[ix>>1] * (mp_word)a->dp[ix>>1];
} }
/* store it */ /* store it */
W[ix] = (mp_digit)(_W & MP_MASK); W[ix] = _W & MP_MASK;
/* make next carry */ /* make next carry */
W1 = _W >> ((mp_word)DIGIT_BIT); W1 = _W >> (mp_word)DIGIT_BIT;
} }
/* setup dest */ /* setup dest */

2
bn_mp_2expt.c
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@ -36,7 +36,7 @@ int mp_2expt(mp_int *a, int b)
a->used = (b / DIGIT_BIT) + 1; a->used = (b / DIGIT_BIT) + 1;
/* put the single bit in its place */ /* put the single bit in its place */
a->dp[b / DIGIT_BIT] = ((mp_digit)1) << (b % DIGIT_BIT); a->dp[b / DIGIT_BIT] = (mp_digit)1 << (mp_digit)(b % DIGIT_BIT);
return MP_OKAY; return MP_OKAY;
} }

2
bn_mp_clamp.c
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@ -27,7 +27,7 @@ void mp_clamp(mp_int *a)
/* decrease used while the most significant digit is /* decrease used while the most significant digit is
* zero. * zero.
*/ */
while ((a->used > 0) && (a->dp[a->used - 1] == 0)) { while ((a->used > 0) && (a->dp[a->used - 1] == 0u)) {
--(a->used); --(a->used);
} }

8
bn_mp_cnt_lsb.c
View File

@ -31,17 +31,17 @@ int mp_cnt_lsb(const mp_int *a)
} }
/* scan lower digits until non-zero */ /* scan lower digits until non-zero */
for (x = 0; (x < a->used) && (a->dp[x] == 0); x++) {} for (x = 0; (x < a->used) && (a->dp[x] == 0u); x++) {}
q = a->dp[x]; q = a->dp[x];
x *= DIGIT_BIT; x *= DIGIT_BIT;
/* now scan this digit until a 1 is found */ /* now scan this digit until a 1 is found */
if ((q & 1) == 0) { if ((q & 1u) == 0u) {
do { do {
qq = q & 15; qq = q & 15u;
x += lnz[qq]; x += lnz[qq];
q >>= 4; q >>= 4;
} while (qq == 0); } while (qq == 0u);
} }
return x; return x;
} }

4
bn_mp_count_bits.c
View File

@ -31,9 +31,9 @@ int mp_count_bits(const mp_int *a)
/* take the last digit and count the bits in it */ /* take the last digit and count the bits in it */
q = a->dp[a->used - 1]; q = a->dp[a->used - 1];
while (q > ((mp_digit) 0)) { while (q > (mp_digit)0) {
++r; ++r;
q >>= ((mp_digit) 1); q >>= (mp_digit)1;
} }
return r; return r;
} }

26
bn_mp_div.c
View File

@ -47,7 +47,7 @@ int mp_div(const mp_int *a, const mp_int *b, mp_int *c, mp_int *d)
} }
mp_set(&tq, 1); mp_set(&tq, 1uL);
n = mp_count_bits(a) - mp_count_bits(b); n = mp_count_bits(a) - mp_count_bits(b);
if (((res = mp_abs(a, &ta)) != MP_OKAY) || if (((res = mp_abs(a, &ta)) != MP_OKAY) ||
((res = mp_abs(b, &tb)) != MP_OKAY) || ((res = mp_abs(b, &tb)) != MP_OKAY) ||
@ -150,7 +150,7 @@ int mp_div(const mp_int *a, const mp_int *b, mp_int *c, mp_int *d)
/* normalize both x and y, ensure that y >= b/2, [b == 2**DIGIT_BIT] */ /* normalize both x and y, ensure that y >= b/2, [b == 2**DIGIT_BIT] */
norm = mp_count_bits(&y) % DIGIT_BIT; norm = mp_count_bits(&y) % DIGIT_BIT;
if (norm < (int)(DIGIT_BIT-1)) { if (norm < (DIGIT_BIT - 1)) {
norm = (DIGIT_BIT - 1) - norm; norm = (DIGIT_BIT - 1) - norm;
if ((res = mp_mul_2d(&x, norm, &x)) != MP_OKAY) { if ((res = mp_mul_2d(&x, norm, &x)) != MP_OKAY) {
goto LBL_Y; goto LBL_Y;
@ -190,16 +190,16 @@ int mp_div(const mp_int *a, const mp_int *b, mp_int *c, mp_int *d)
/* step 3.1 if xi == yt then set q{i-t-1} to b-1, /* step 3.1 if xi == yt then set q{i-t-1} to b-1,
* otherwise set q{i-t-1} to (xi*b + x{i-1})/yt */ * otherwise set q{i-t-1} to (xi*b + x{i-1})/yt */
if (x.dp[i] == y.dp[t]) { if (x.dp[i] == y.dp[t]) {
q.dp[(i - t) - 1] = ((((mp_digit)1) << DIGIT_BIT) - 1); q.dp[(i - t) - 1] = ((mp_digit)1 << (mp_digit)DIGIT_BIT) - (mp_digit)1;
} else { } else {
mp_word tmp; mp_word tmp;
tmp = ((mp_word) x.dp[i]) << ((mp_word) DIGIT_BIT); tmp = (mp_word)x.dp[i] << (mp_word)DIGIT_BIT;
tmp |= ((mp_word) x.dp[i - 1]); tmp |= (mp_word)x.dp[i - 1];
tmp /= ((mp_word) y.dp[t]); tmp /= (mp_word)y.dp[t];
if (tmp > (mp_word)MP_MASK) { if (tmp > (mp_word)MP_MASK) {
tmp = MP_MASK; tmp = MP_MASK;
} }
q.dp[(i - t) - 1] = (mp_digit)(tmp & (mp_word)(MP_MASK)); q.dp[(i - t) - 1] = (mp_digit)(tmp & (mp_word)MP_MASK);
} }
/* while (q{i-t-1} * (yt * b + y{t-1})) > /* while (q{i-t-1} * (yt * b + y{t-1})) >
@ -207,13 +207,13 @@ int mp_div(const mp_int *a, const mp_int *b, mp_int *c, mp_int *d)
do q{i-t-1} -= 1; do q{i-t-1} -= 1;
*/ */
q.dp[(i - t) - 1] = (q.dp[(i - t) - 1] + 1) & MP_MASK; q.dp[(i - t) - 1] = (q.dp[(i - t) - 1] + 1uL) & (mp_digit)MP_MASK;
do { do {
q.dp[(i - t) - 1] = (q.dp[(i - t) - 1] - 1) & MP_MASK; q.dp[(i - t) - 1] = (q.dp[(i - t) - 1] - 1uL) & (mp_digit)MP_MASK;
/* find left hand */ /* find left hand */
mp_zero(&t1); mp_zero(&t1);
t1.dp[0] = ((t - 1) < 0) ? 0 : y.dp[t - 1]; t1.dp[0] = ((t - 1) < 0) ? 0u : y.dp[t - 1];
t1.dp[1] = y.dp[t]; t1.dp[1] = y.dp[t];
t1.used = 2; t1.used = 2;
if ((res = mp_mul_d(&t1, q.dp[(i - t) - 1], &t1)) != MP_OKAY) { if ((res = mp_mul_d(&t1, q.dp[(i - t) - 1], &t1)) != MP_OKAY) {
@ -221,8 +221,8 @@ int mp_div(const mp_int *a, const mp_int *b, mp_int *c, mp_int *d)
} }
/* find right hand */ /* find right hand */
t2.dp[0] = ((i - 2) < 0) ? 0 : x.dp[i - 2]; t2.dp[0] = ((i - 2) < 0) ? 0u : x.dp[i - 2];
t2.dp[1] = ((i - 1) < 0) ? 0 : x.dp[i - 1]; t2.dp[1] = ((i - 1) < 0) ? 0u : x.dp[i - 1];
t2.dp[2] = x.dp[i]; t2.dp[2] = x.dp[i];
t2.used = 3; t2.used = 3;
} while (mp_cmp_mag(&t1, &t2) == MP_GT); } while (mp_cmp_mag(&t1, &t2) == MP_GT);
@ -252,7 +252,7 @@ int mp_div(const mp_int *a, const mp_int *b, mp_int *c, mp_int *d)
goto LBL_Y; goto LBL_Y;
} }
q.dp[(i - t) - 1] = (q.dp[(i - t) - 1] - 1UL) & MP_MASK; q.dp[(i - t) - 1] = (q.dp[(i - t) - 1] - 1uL) & MP_MASK;
} }
} }

2
bn_mp_div_2.c
View File

@ -42,7 +42,7 @@ int mp_div_2(const mp_int *a, mp_int *b)
r = 0; r = 0;
for (x = b->used - 1; x >= 0; x--) { for (x = b->used - 1; x >= 0; x--) {
/* get the carry for the next iteration */ /* get the carry for the next iteration */
rr = *tmpa & 1; rr = *tmpa & 1u;
/* shift the current digit, add in carry and store */ /* shift the current digit, add in carry and store */
*tmpb-- = (*tmpa-- >> 1) | (r << (DIGIT_BIT - 1)); *tmpb-- = (*tmpa-- >> 1) | (r << (DIGIT_BIT - 1));

8
bn_mp_div_2d.c
View File

@ -44,20 +44,20 @@ int mp_div_2d(const mp_int *a, int b, mp_int *c, mp_int *d)
} }
/* shift by as many digits in the bit count */ /* shift by as many digits in the bit count */
if (b >= (int)DIGIT_BIT) { if (b >= DIGIT_BIT) {
mp_rshd(c, b / DIGIT_BIT); mp_rshd(c, b / DIGIT_BIT);
} }
/* shift any bit count < DIGIT_BIT */ /* shift any bit count < DIGIT_BIT */
D = (mp_digit)(b % DIGIT_BIT); D = (mp_digit)(b % DIGIT_BIT);
if (D != 0) { if (D != 0u) {
mp_digit *tmpc, mask, shift; mp_digit *tmpc, mask, shift;
/* mask */ /* mask */
mask = (((mp_digit)1) << D) - 1; mask = (1uL << D) - 1uL;
/* shift for lsb */ /* shift for lsb */
shift = DIGIT_BIT - D; shift = (mp_digit)DIGIT_BIT - D;
/* alias */ /* alias */
tmpc = c->dp + (c->used - 1); tmpc = c->dp + (c->used - 1);

14
bn_mp_div_3.c
View File

@ -24,7 +24,7 @@ int mp_div_3(const mp_int *a, mp_int *c, mp_digit *d)
int res, ix; int res, ix;
/* b = 2**DIGIT_BIT / 3 */ /* b = 2**DIGIT_BIT / 3 */
b = (((mp_word)1) << ((mp_word)DIGIT_BIT)) / ((mp_word)3); b = ((mp_word)1 << (mp_word)DIGIT_BIT) / (mp_word)3;
if ((res = mp_init_size(&q, a->used)) != MP_OKAY) { if ((res = mp_init_size(&q, a->used)) != MP_OKAY) {
return res; return res;
@ -34,11 +34,11 @@ int mp_div_3(const mp_int *a, mp_int *c, mp_digit *d)
q.sign = a->sign; q.sign = a->sign;
w = 0; w = 0;
for (ix = a->used - 1; ix >= 0; ix--) { for (ix = a->used - 1; ix >= 0; ix--) {
w = (w << ((mp_word)DIGIT_BIT)) | ((mp_word)a->dp[ix]); w = (w << (mp_word)DIGIT_BIT) | (mp_word)a->dp[ix];
if (w >= 3) { if (w >= 3u) {
/* multiply w by [1/3] */ /* multiply w by [1/3] */
t = (w * ((mp_word)b)) >> ((mp_word)DIGIT_BIT); t = (w * (mp_word)b) >> (mp_word)DIGIT_BIT;
/* now subtract 3 * [w/3] from w, to get the remainder */ /* now subtract 3 * [w/3] from w, to get the remainder */
w -= t+t+t; w -= t+t+t;
@ -46,9 +46,9 @@ int mp_div_3(const mp_int *a, mp_int *c, mp_digit *d)
/* fixup the remainder as required since /* fixup the remainder as required since
* the optimization is not exact. * the optimization is not exact.
*/ */
while (w >= 3) { while (w >= 3u) {
t += 1; t += 1u;
w -= 3; w -= 3u;
} }
} else { } else {
t = 0; t = 0;

18
bn_mp_div_d.c
View File

@ -20,12 +20,12 @@ static int s_is_power_of_two(mp_digit b, int *p)
int x; int x;
/* fast return if no power of two */ /* fast return if no power of two */
if ((b == 0) || ((b & (b-1)) != 0)) { if ((b == 0u) || ((b & (b-1u)) != 0u)) {
return 0; return 0;
} }
for (x = 0; x < DIGIT_BIT; x++) { for (x = 0; x < DIGIT_BIT; x++) {
if (b == (((mp_digit)1)<<x)) { if (b == (1uL<<(mp_digit)x)) {
*p = x; *p = x;
return 1; return 1;
} }
@ -42,12 +42,12 @@ int mp_div_d(const mp_int *a, mp_digit b, mp_int *c, mp_digit *d)
int res, ix; int res, ix;
/* cannot divide by zero */ /* cannot divide by zero */
if (b == 0) { if (b == 0u) {
return MP_VAL; return MP_VAL;
} }
/* quick outs */ /* quick outs */
if ((b == 1) || (mp_iszero(a) == MP_YES)) { if ((b == 1u) || (mp_iszero(a) == MP_YES)) {
if (d != NULL) { if (d != NULL) {
*d = 0; *d = 0;
} }
@ -60,7 +60,7 @@ int mp_div_d(const mp_int *a, mp_digit b, mp_int *c, mp_digit *d)
/* power of two ? */ /* power of two ? */
if (s_is_power_of_two(b, &ix) == 1) { if (s_is_power_of_two(b, &ix) == 1) {
if (d != NULL) { if (d != NULL) {
*d = a->dp[0] & ((((mp_digit)1)<<ix) - 1); *d = a->dp[0] & ((1uL<<(mp_digit)ix) - 1uL);
} }
if (c != NULL) { if (c != NULL) {
return mp_div_2d(a, ix, c, NULL); return mp_div_2d(a, ix, c, NULL);
@ -70,7 +70,7 @@ int mp_div_d(const mp_int *a, mp_digit b, mp_int *c, mp_digit *d)
#ifdef BN_MP_DIV_3_C #ifdef BN_MP_DIV_3_C
/* three? */ /* three? */
if (b == 3) { if (b == 3u) {
return mp_div_3(a, c, d); return mp_div_3(a, c, d);
} }
#endif #endif
@ -84,15 +84,15 @@ int mp_div_d(const mp_int *a, mp_digit b, mp_int *c, mp_digit *d)
q.sign = a->sign; q.sign = a->sign;
w = 0; w = 0;
for (ix = a->used - 1; ix >= 0; ix--) { for (ix = a->used - 1; ix >= 0; ix--) {
w = (w << ((mp_word)DIGIT_BIT)) | ((mp_word)a->dp[ix]); w = (w << (mp_word)DIGIT_BIT) | (mp_word)a->dp[ix];
if (w >= b) { if (w >= b) {
t = (mp_digit)(w / b); t = (mp_digit)(w / b);
w -= ((mp_word)t) * ((mp_word)b); w -= (mp_word)t * (mp_word)b;
} else { } else {
t = 0; t = 0;
} }
q.dp[ix] = (mp_digit)t; q.dp[ix] = t;
} }
if (d != NULL) { if (d != NULL) {

2
bn_mp_dr_reduce.c
View File

@ -61,7 +61,7 @@ top:
/* compute (x mod B**m) + k * [x/B**m] inline and inplace */ /* compute (x mod B**m) + k * [x/B**m] inline and inplace */
for (i = 0; i < m; i++) { for (i = 0; i < m; i++) {
r = (((mp_word)*tmpx2++) * (mp_word)k) + *tmpx1 + mu; r = ((mp_word)*tmpx2++ * (mp_word)k) + *tmpx1 + mu;
*tmpx1++ = (mp_digit)(r & MP_MASK); *tmpx1++ = (mp_digit)(r & MP_MASK);
mu = (mp_digit)(r >> ((mp_word)DIGIT_BIT)); mu = (mp_digit)(r >> ((mp_word)DIGIT_BIT));
} }

2
bn_mp_dr_setup.c
View File

@ -21,7 +21,7 @@ void mp_dr_setup(const mp_int *a, mp_digit *d)
/* the casts are required if DIGIT_BIT is one less than /* the casts are required if DIGIT_BIT is one less than
* the number of bits in a mp_digit [e.g. DIGIT_BIT==31] * the number of bits in a mp_digit [e.g. DIGIT_BIT==31]
*/ */
*d = (mp_digit)((((mp_word)1) << ((mp_word)DIGIT_BIT)) - ((mp_word)a->dp[0])); *d = (mp_digit)(((mp_word)1 << (mp_word)DIGIT_BIT) - (mp_word)a->dp[0]);
} }
#endif #endif

20
bn_mp_export.c
View File

@ -38,33 +38,33 @@ int mp_export(void *rop, size_t *countp, int order, size_t size,
} lint; } lint;
lint.i = 0x01020304; lint.i = 0x01020304;
endian = (lint.c[0] == 4) ? -1 : 1; endian = (lint.c[0] == '\x04') ? -1 : 1;
} }
odd_nails = (nails % 8); odd_nails = (nails % 8u);
odd_nail_mask = 0xff; odd_nail_mask = 0xff;
for (i = 0; i < odd_nails; ++i) { for (i = 0; i < odd_nails; ++i) {
odd_nail_mask ^= (1 << (7 - i)); odd_nail_mask ^= (unsigned char)(1u << (7u - i));
} }
nail_bytes = nails / 8; nail_bytes = nails / 8u;
bits = mp_count_bits(&t); bits = (size_t)mp_count_bits(&t);
count = (bits / ((size * 8) - nails)) + (((bits % ((size * 8) - nails)) != 0) ? 1 : 0); count = (bits / ((size * 8u) - nails)) + (((bits % ((size * 8u) - nails)) != 0u) ? 1u : 0u);
for (i = 0; i < count; ++i) { for (i = 0; i < count; ++i) {
for (j = 0; j < size; ++j) { for (j = 0; j < size; ++j) {
unsigned char *byte = (unsigned char *)rop + unsigned char *byte = (unsigned char *)rop +
(((order == -1) ? i : ((count - 1) - i)) * size) + (((order == -1) ? i : ((count - 1u) - i)) * size) +
((endian == -1) ? j : ((size - 1) - j)); ((endian == -1) ? j : ((size - 1u) - j));
if (j >= (size - nail_bytes)) { if (j >= (size - nail_bytes)) {
*byte = 0; *byte = 0;
continue; continue;
} }
*byte = (unsigned char)((j == ((size - nail_bytes) - 1)) ? (t.dp[0] & odd_nail_mask) : (t.dp[0] & 0xFF)); *byte = (unsigned char)((j == ((size - nail_bytes) - 1u)) ? (t.dp[0] & odd_nail_mask) : (t.dp[0] & 0xFFuL));
if ((result = mp_div_2d(&t, ((j == ((size - nail_bytes) - 1)) ? (8 - odd_nails) : 8), &t, NULL)) != MP_OKAY) { if ((result = mp_div_2d(&t, (j == ((size - nail_bytes) - 1u)) ? (int)(8u - odd_nails) : 8, &t, NULL)) != MP_OKAY) {
mp_clear(&t); mp_clear(&t);
return result; return result;
} }

12
bn_mp_expt_d_ex.c
View File

@ -28,12 +28,12 @@ int mp_expt_d_ex(const mp_int *a, mp_digit b, mp_int *c, int fast)
} }
/* set initial result */ /* set initial result */
mp_set(c, 1); mp_set(c, 1uL);
if (fast != 0) { if (fast != 0) {
while (b > 0) { while (b > 0u) {
/* if the bit is set multiply */ /* if the bit is set multiply */
if ((b & 1) != 0) { if ((b & 1u) != 0u) {
if ((res = mp_mul(c, &g, c)) != MP_OKAY) { if ((res = mp_mul(c, &g, c)) != MP_OKAY) {
mp_clear(&g); mp_clear(&g);
return res; return res;
@ -41,7 +41,7 @@ int mp_expt_d_ex(const mp_int *a, mp_digit b, mp_int *c, int fast)
} }
/* square */ /* square */
if (b > 1) { if (b > 1u) {
if ((res = mp_sqr(&g, &g)) != MP_OKAY) { if ((res = mp_sqr(&g, &g)) != MP_OKAY) {
mp_clear(&g); mp_clear(&g);
return res; return res;
@ -52,7 +52,7 @@ int mp_expt_d_ex(const mp_int *a, mp_digit b, mp_int *c, int fast)
b >>= 1; b >>= 1;
} }
} else { } else {
for (x = 0; x < DIGIT_BIT; x++) { for (x = 0; x < (unsigned)DIGIT_BIT; x++) {
/* square */ /* square */
if ((res = mp_sqr(c, c)) != MP_OKAY) { if ((res = mp_sqr(c, c)) != MP_OKAY) {
mp_clear(&g); mp_clear(&g);
@ -60,7 +60,7 @@ int mp_expt_d_ex(const mp_int *a, mp_digit b, mp_int *c, int fast)
} }
/* if the bit is set multiply */ /* if the bit is set multiply */
if ((b & (mp_digit)(((mp_digit)1) << (DIGIT_BIT - 1))) != 0) { if ((b & (1uL << (DIGIT_BIT - 1))) != 0u) {
if ((res = mp_mul(c, &g, c)) != MP_OKAY) { if ((res = mp_mul(c, &g, c)) != MP_OKAY) {
mp_clear(&g); mp_clear(&g);
return res; return res;

6
bn_mp_exptmod_fast.c
View File

@ -39,7 +39,7 @@ int mp_exptmod_fast(const mp_int *G, const mp_int *X, const mp_int *P, mp_int *Y
* one of many reduction algorithms without modding the guts of * one of many reduction algorithms without modding the guts of
* the code with if statements everywhere. * the code with if statements everywhere.
*/ */
int (*redux)(mp_int *,const mp_int *,mp_digit); int (*redux)(mp_int *x, const mp_int *n, mp_digit rho);
/* find window size */ /* find window size */
x = mp_count_bits(X); x = mp_count_bits(X);
@ -96,7 +96,7 @@ int mp_exptmod_fast(const mp_int *G, const mp_int *X, const mp_int *P, mp_int *Y
/* automatically pick the comba one if available (saves quite a few calls/ifs) */ /* automatically pick the comba one if available (saves quite a few calls/ifs) */
#ifdef BN_FAST_MP_MONTGOMERY_REDUCE_C #ifdef BN_FAST_MP_MONTGOMERY_REDUCE_C
if ((((P->used * 2) + 1) < MP_WARRAY) && if ((((P->used * 2) + 1) < (int)MP_WARRAY) &&
(P->used < (1 << ((CHAR_BIT * sizeof(mp_word)) - (2 * DIGIT_BIT))))) { (P->used < (1 << ((CHAR_BIT * sizeof(mp_word)) - (2 * DIGIT_BIT))))) {
redux = fast_mp_montgomery_reduce; redux = fast_mp_montgomery_reduce;
} else } else
@ -160,7 +160,7 @@ int mp_exptmod_fast(const mp_int *G, const mp_int *X, const mp_int *P, mp_int *Y
goto LBL_RES; goto LBL_RES;
#endif #endif
} else { } else {
mp_set(&res, 1); mp_set(&res, 1uL);
if ((err = mp_mod(G, P, &M[1])) != MP_OKAY) { if ((err = mp_mod(G, P, &M[1])) != MP_OKAY) {
goto LBL_RES; goto LBL_RES;
} }

4
bn_mp_exteuclid.c
View File

@ -28,13 +28,13 @@ int mp_exteuclid(const mp_int *a, const mp_int *b, mp_int *U1, mp_int *U2, mp_in
} }
/* initialize, (u1,u2,u3) = (1,0,a) */ /* initialize, (u1,u2,u3) = (1,0,a) */
mp_set(&u1, 1); mp_set(&u1, 1uL);
if ((err = mp_copy(a, &u3)) != MP_OKAY) { if ((err = mp_copy(a, &u3)) != MP_OKAY) {
goto LBL_ERR; goto LBL_ERR;
} }
/* initialize, (v1,v2,v3) = (0,1,b) */ /* initialize, (v1,v2,v3) = (0,1,b) */
mp_set(&v2, 1); mp_set(&v2, 1uL);
if ((err = mp_copy(b, &v3)) != MP_OKAY) { if ((err = mp_copy(b, &v3)) != MP_OKAY) {
goto LBL_ERR; goto LBL_ERR;
} }

14
bn_mp_fread.c
View File

@ -27,7 +27,7 @@ int mp_fread(mp_int *a, int radix, FILE *stream)
/* if first digit is - then set negative */ /* if first digit is - then set negative */
ch = fgetc(stream); ch = fgetc(stream);
if (ch == '-') { if (ch == (int)'-') {
neg = MP_NEG; neg = MP_NEG;
ch = fgetc(stream); ch = fgetc(stream);
} else { } else {
@ -35,28 +35,28 @@ int mp_fread(mp_int *a, int radix, FILE *stream)
} }
for (;;) { for (;;) {
pos = ch - '('; pos = (unsigned)(ch - (int)'(');
if (mp_s_rmap_reverse_sz < pos) { if (mp_s_rmap_reverse_sz < pos) {
break; break;
} }
y = mp_s_rmap_reverse[pos]; y = (int)mp_s_rmap_reverse[pos];
if (y == 0xff || y >= radix) { if ((y == 0xff) || (y >= radix)) {
break; break;
} }
/* shift up and add */ /* shift up and add */
if ((err = mp_mul_d(a, radix, a)) != MP_OKAY) { if ((err = mp_mul_d(a, (mp_digit)radix, a)) != MP_OKAY) {
return err; return err;
} }
if ((err = mp_add_d(a, y, a)) != MP_OKAY) { if ((err = mp_add_d(a, (mp_digit)y, a)) != MP_OKAY) {
return err; return err;
} }
ch = fgetc(stream); ch = fgetc(stream);
} }
if (mp_cmp_d(a, 0) != MP_EQ) { if (mp_cmp_d(a, 0uL) != MP_EQ) {
a->sign = neg; a->sign = neg;
} }

4
bn_mp_fwrite.c
View File

@ -25,7 +25,7 @@ int mp_fwrite(const mp_int *a, int radix, FILE *stream)
return err; return err;
} }
buf = OPT_CAST(char) XMALLOC(len); buf = OPT_CAST(char) XMALLOC((size_t)len);
if (buf == NULL) { if (buf == NULL) {
return MP_MEM; return MP_MEM;
} }
@ -36,7 +36,7 @@ int mp_fwrite(const mp_int *a, int radix, FILE *stream)
} }
for (x = 0; x < len; x++) { for (x = 0; x < len; x++) {
if (fputc(buf[x], stream) == EOF) { if (fputc((int)buf[x], stream) == EOF) {
XFREE(buf); XFREE(buf);
return MP_VAL; return MP_VAL;
} }

2
bn_mp_get_int.c
View File

@ -26,7 +26,7 @@ unsigned long mp_get_int(const mp_int *a)
} }
/* get number of digits of the lsb we have to read */ /* get number of digits of the lsb we have to read */
i = MIN(a->used, (int)(((sizeof(unsigned long) * CHAR_BIT) + DIGIT_BIT - 1) / DIGIT_BIT)) - 1; i = MIN(a->used, ((((int)sizeof(unsigned long) * CHAR_BIT) + DIGIT_BIT - 1) / DIGIT_BIT)) - 1;
/* get most significant digit of result */ /* get most significant digit of result */
res = DIGIT(a, i); res = DIGIT(a, i);

2
bn_mp_get_long.c
View File

@ -26,7 +26,7 @@ unsigned long mp_get_long(const mp_int *a)
} }
/* get number of digits of the lsb we have to read */ /* get number of digits of the lsb we have to read */
i = MIN(a->used, (int)(((sizeof(unsigned long) * CHAR_BIT) + DIGIT_BIT - 1) / DIGIT_BIT)) - 1; i = MIN(a->used, ((((int)sizeof(unsigned long) * CHAR_BIT) + DIGIT_BIT - 1) / DIGIT_BIT)) - 1;
/* get most significant digit of result */ /* get most significant digit of result */
res = DIGIT(a, i); res = DIGIT(a, i);

2
bn_mp_get_long_long.c
View File

@ -26,7 +26,7 @@ unsigned long long mp_get_long_long(const mp_int *a)
} }
/* get number of digits of the lsb we have to read */ /* get number of digits of the lsb we have to read */
i = MIN(a->used, (int)(((sizeof(unsigned long long) * CHAR_BIT) + DIGIT_BIT - 1) / DIGIT_BIT)) - 1; i = MIN(a->used, ((((int)sizeof(unsigned long long) * CHAR_BIT) + DIGIT_BIT - 1) / DIGIT_BIT)) - 1;
/* get most significant digit of result */ /* get most significant digit of result */
res = DIGIT(a, i); res = DIGIT(a, i);

2
bn_mp_grow.c
View File

@ -32,7 +32,7 @@ int mp_grow(mp_int *a, int size)
* in case the operation failed we don't want * in case the operation failed we don't want
* to overwrite the dp member of a. * to overwrite the dp member of a.
*/ */
tmp = OPT_CAST(mp_digit) XREALLOC(a->dp, sizeof(mp_digit) * size); tmp = OPT_CAST(mp_digit) XREALLOC(a->dp, sizeof(mp_digit) * (size_t)size);
if (tmp == NULL) { if (tmp == NULL) {
/* reallocation failed but "a" is still valid [can be freed] */ /* reallocation failed but "a" is still valid [can be freed] */
return MP_MEM; return MP_MEM;

16
bn_mp_import.c
View File

@ -34,27 +34,27 @@ int mp_import(mp_int *rop, size_t count, int order, size_t size,
} lint; } lint;
lint.i = 0x01020304; lint.i = 0x01020304;
endian = (lint.c[0] == 4) ? -1 : 1; endian = (lint.c[0] == '\x04') ? -1 : 1;
} }
odd_nails = (nails % 8); odd_nails = (nails % 8u);
odd_nail_mask = 0xff; odd_nail_mask = 0xff;
for (i = 0; i < odd_nails; ++i) { for (i = 0; i < odd_nails; ++i) {
odd_nail_mask ^= (1 << (7 - i)); odd_nail_mask ^= (unsigned char)(1u << (7u - i));
} }
nail_bytes = nails / 8; nail_bytes = nails / 8u;
for (i = 0; i < count; ++i) { for (i = 0; i < count; ++i) {
for (j = 0; j < (size - nail_bytes); ++j) { for (j = 0; j < (size - nail_bytes); ++j) {
unsigned char byte = *((unsigned char *)op + unsigned char byte = *((unsigned char *)op +
(((order == 1) ? i : ((count - 1) - i)) * size) + (((order == 1) ? i : ((count - 1u) - i)) * size) +
((endian == 1) ? (j + nail_bytes) : (((size - 1) - j) - nail_bytes))); ((endian == 1) ? (j + nail_bytes) : (((size - 1u) - j) - nail_bytes)));
if ((result = mp_mul_2d(rop, ((j == 0) ? (8 - odd_nails) : 8), rop)) != MP_OKAY) { if ((result = mp_mul_2d(rop, (j == 0u) ? (int)(8u - odd_nails) : 8, rop)) != MP_OKAY) {
return result; return result;
} }
rop->dp[0] |= (j == 0) ? (byte & odd_nail_mask) : byte; rop->dp[0] |= (j == 0u) ? (mp_digit)(byte & odd_nail_mask) : (mp_digit)byte;
rop->used += 1; rop->used += 1;
} }
} }

2
bn_mp_init.c
View File

@ -21,7 +21,7 @@ int mp_init(mp_int *a)
int i; int i;
/* allocate memory required and clear it */ /* allocate memory required and clear it */
a->dp = OPT_CAST(mp_digit) XMALLOC(sizeof(mp_digit) * MP_PREC); a->dp = OPT_CAST(mp_digit) XMALLOC(sizeof(mp_digit) * (size_t)MP_PREC);
if (a->dp == NULL) { if (a->dp == NULL) {
return MP_MEM; return MP_MEM;
} }

2
bn_mp_init_size.c
View File

@ -24,7 +24,7 @@ int mp_init_size(mp_int *a, int size)
size += (MP_PREC * 2) - (size % MP_PREC); size += (MP_PREC * 2) - (size % MP_PREC);
/* alloc mem */ /* alloc mem */
a->dp = OPT_CAST(mp_digit) XMALLOC(sizeof(mp_digit) * size); a->dp = OPT_CAST(mp_digit) XMALLOC(sizeof(mp_digit) * (size_t)size);
if (a->dp == NULL) { if (a->dp == NULL) {
return MP_MEM; return MP_MEM;
} }

2
bn_mp_invmod.c
View File

@ -19,7 +19,7 @@
int mp_invmod(const mp_int *a, const mp_int *b, mp_int *c) int mp_invmod(const mp_int *a, const mp_int *b, mp_int *c)
{ {
/* b cannot be negative and has to be >1 */ /* b cannot be negative and has to be >1 */
if ((b->sign == MP_NEG) || (mp_cmp_d(b, 1) != MP_GT)) { if ((b->sign == MP_NEG) || (mp_cmp_d(b, 1uL) != MP_GT)) {
return MP_VAL; return MP_VAL;
} }

8
bn_mp_invmod_slow.c
View File

@ -53,8 +53,8 @@ int mp_invmod_slow(const mp_int *a, const mp_int *b, mp_int *c)
if ((res = mp_copy(&y, &v)) != MP_OKAY) { if ((res = mp_copy(&y, &v)) != MP_OKAY) {
goto LBL_ERR; goto LBL_ERR;
} }
mp_set(&A, 1); mp_set(&A, 1uL);
mp_set(&D, 1); mp_set(&D, 1uL);
top: top:
/* 4. while u is even do */ /* 4. while u is even do */
@ -143,13 +143,13 @@ top:
/* now a = C, b = D, gcd == g*v */ /* now a = C, b = D, gcd == g*v */
/* if v != 1 then there is no inverse */ /* if v != 1 then there is no inverse */
if (mp_cmp_d(&v, 1) != MP_EQ) { if (mp_cmp_d(&v, 1uL) != MP_EQ) {
res = MP_VAL; res = MP_VAL;
goto LBL_ERR; goto LBL_ERR;
} }
/* if its too low */ /* if its too low */
while (mp_cmp_d(&C, 0) == MP_LT) { while (mp_cmp_d(&C, 0uL) == MP_LT) {
if ((res = mp_add(&C, b, &C)) != MP_OKAY) { if ((res = mp_add(&C, b, &C)) != MP_OKAY) {
goto LBL_ERR; goto LBL_ERR;
} }

20
bn_mp_is_square.c
View File

@ -58,15 +58,15 @@ int mp_is_square(const mp_int *arg, int *ret)
} }
/* First check mod 128 (suppose that DIGIT_BIT is at least 7) */ /* First check mod 128 (suppose that DIGIT_BIT is at least 7) */
if (rem_128[127 & DIGIT(arg, 0)] == 1) { if (rem_128[127u & DIGIT(arg, 0)] == (char)1) {
return MP_OKAY; return MP_OKAY;
} }
/* Next check mod 105 (3*5*7) */ /* Next check mod 105 (3*5*7) */
if ((res = mp_mod_d(arg, 105, &c)) != MP_OKAY) { if ((res = mp_mod_d(arg, 105uL, &c)) != MP_OKAY) {
return res; return res;
} }
if (rem_105[c] == 1) { if (rem_105[c] == (char)1) {
return MP_OKAY; return MP_OKAY;
} }
@ -82,13 +82,13 @@ int mp_is_square(const mp_int *arg, int *ret)
* free "t" so the easiest way is to goto ERR. We know that res * free "t" so the easiest way is to goto ERR. We know that res
* is already equal to MP_OKAY from the mp_mod call * is already equal to MP_OKAY from the mp_mod call
*/ */
if (((1L<<(r%11)) & 0x5C4L) != 0L) goto ERR; if (((1uL<<(r%11uL)) & 0x5C4uL) != 0uL) goto ERR;
if (((1L<<(r%13)) & 0x9E4L) != 0L) goto ERR; if (((1uL<<(r%13uL)) & 0x9E4uL) != 0uL) goto ERR;
if (((1L<<(r%17)) & 0x5CE8L) != 0L) goto ERR; if (((1uL<<(r%17uL)) & 0x5CE8uL) != 0uL) goto ERR;
if (((1L<<(r%19)) & 0x4F50CL) != 0L) goto ERR; if (((1uL<<(r%19uL)) & 0x4F50CuL) != 0uL) goto ERR;
if (((1L<<(r%23)) & 0x7ACCA0L) != 0L) goto ERR; if (((1uL<<(r%23uL)) & 0x7ACCA0uL) != 0uL) goto ERR;
if (((1L<<(r%29)) & 0xC2EDD0CL) != 0L) goto ERR; if (((1uL<<(r%29uL)) & 0xC2EDD0CuL) != 0uL) goto ERR;
if (((1L<<(r%31)) & 0x6DE2B848L) != 0L) goto ERR; if (((1uL<<(r%31uL)) & 0x6DE2B848uL) != 0uL) goto ERR;
/* Final check - is sqr(sqrt(arg)) == arg ? */ /* Final check - is sqr(sqrt(arg)) == arg ? */
if ((res = mp_sqrt(arg, &t)) != MP_OKAY) { if ((res = mp_sqrt(arg, &t)) != MP_OKAY) {

18
bn_mp_jacobi.c
View File

@ -32,14 +32,14 @@ int mp_jacobi(const mp_int *a, const mp_int *n, int *c)
} }
/* if n <= 0 return MP_VAL */ /* if n <= 0 return MP_VAL */
if (mp_cmp_d(n, 0) != MP_GT) { if (mp_cmp_d(n, 0uL) != MP_GT) {
return MP_VAL; return MP_VAL;
} }
/* step 1. handle case of a == 0 */ /* step 1. handle case of a == 0 */
if (mp_iszero(a) == MP_YES) { if (mp_iszero(a) == MP_YES) {
/* special case of a == 0 and n == 1 */ /* special case of a == 0 and n == 1 */
if (mp_cmp_d(n, 1) == MP_EQ) { if (mp_cmp_d(n, 1uL) == MP_EQ) {
*c = 1; *c = 1;
} else { } else {
*c = 0; *c = 0;
@ -48,7 +48,7 @@ int mp_jacobi(const mp_int *a, const mp_int *n, int *c)
} }
/* step 2. if a == 1, return 1 */ /* step 2. if a == 1, return 1 */
if (mp_cmp_d(a, 1) == MP_EQ) { if (mp_cmp_d(a, 1uL) == MP_EQ) {
*c = 1; *c = 1;
return MP_OKAY; return MP_OKAY;
} }
@ -72,26 +72,26 @@ int mp_jacobi(const mp_int *a, const mp_int *n, int *c)
} }
/* step 4. if e is even set s=1 */ /* step 4. if e is even set s=1 */
if ((k & 1) == 0) { if (((unsigned)k & 1u) == 0u) {
s = 1; s = 1;
} else { } else {
/* else set s=1 if p = 1/7 (mod 8) or s=-1 if p = 3/5 (mod 8) */ /* else set s=1 if p = 1/7 (mod 8) or s=-1 if p = 3/5 (mod 8) */
residue = n->dp[0] & 7; residue = n->dp[0] & 7u;
if ((residue == 1) || (residue == 7)) { if ((residue == 1u) || (residue == 7u)) {
s = 1; s = 1;
} else if ((residue == 3) || (residue == 5)) { } else if ((residue == 3u) || (residue == 5u)) {
s = -1; s = -1;
} }
} }
/* step 5. if p == 3 (mod 4) *and* a1 == 3 (mod 4) then s = -s */ /* step 5. if p == 3 (mod 4) *and* a1 == 3 (mod 4) then s = -s */
if (((n->dp[0] & 3) == 3) && ((a1.dp[0] & 3) == 3)) { if (((n->dp[0] & 3u) == 3u) && ((a1.dp[0] & 3u) == 3u)) {
s = -s; s = -s;
} }
/* if a1 == 1 we're done */ /* if a1 == 1 we're done */
if (mp_cmp_d(&a1, 1) == MP_EQ) { if (mp_cmp_d(&a1, 1uL) == MP_EQ) {
*c = s; *c = s;
} else { } else {
/* n1 = n mod a1 */ /* n1 = n mod a1 */

4
bn_mp_mod_2d.c
View File

@ -27,7 +27,7 @@ int mp_mod_2d(const mp_int *a, int b, mp_int *c)
} }
/* if the modulus is larger than the value than return */ /* if the modulus is larger than the value than return */
if (b >= (int)(a->used * DIGIT_BIT)) { if (b >= (a->used * DIGIT_BIT)) {
res = mp_copy(a, c); res = mp_copy(a, c);
return res; return res;
} }
@ -43,7 +43,7 @@ int mp_mod_2d(const mp_int *a, int b, mp_int *c)
} }
/* clear the digit that is not completely outside/inside the modulus */ /* clear the digit that is not completely outside/inside the modulus */
c->dp[b / DIGIT_BIT] &= c->dp[b / DIGIT_BIT] &=
(mp_digit)((((mp_digit) 1) << (((mp_digit) b) % DIGIT_BIT)) - ((mp_digit) 1)); (1uL << (mp_digit)(b % DIGIT_BIT)) - 1uL;
mp_clamp(c); mp_clamp(c);
return MP_OKAY; return MP_OKAY;
} }

2
bn_mp_montgomery_calc_normalization.c
View File

@ -33,7 +33,7 @@ int mp_montgomery_calc_normalization(mp_int *a, const mp_int *b)
return res; return res;
} }
} else { } else {
mp_set(a, 1); mp_set(a, 1uL);
bits = 1; bits = 1;
} }

12
bn_mp_montgomery_reduce.c
View File

@ -28,10 +28,10 @@ int mp_montgomery_reduce(mp_int *x, const mp_int *n, mp_digit rho)
* are fixed up in the inner loop. * are fixed up in the inner loop.
*/ */
digs = (n->used * 2) + 1; digs = (n->used * 2) + 1;
if ((digs < MP_WARRAY) && if ((digs < (int)MP_WARRAY) &&
(x->used <= MP_WARRAY) && (x->used <= (int)MP_WARRAY) &&
(n->used < (n->used <
(1 << ((CHAR_BIT * sizeof(mp_word)) - (2 * DIGIT_BIT))))) { (int)(1u << (((size_t)CHAR_BIT * sizeof(mp_word)) - (2u * (size_t)DIGIT_BIT))))) {
return fast_mp_montgomery_reduce(x, n, rho); return fast_mp_montgomery_reduce(x, n, rho);
} }
@ -76,16 +76,16 @@ int mp_montgomery_reduce(mp_int *x, const mp_int *n, mp_digit rho)
(mp_word)u + (mp_word)*tmpx; (mp_word)u + (mp_word)*tmpx;
/* get carry */ /* get carry */
u = (mp_digit)(r >> ((mp_word) DIGIT_BIT)); u = (mp_digit)(r >> (mp_word)DIGIT_BIT);
/* fix digit */ /* fix digit */
*tmpx++ = (mp_digit)(r & ((mp_word) MP_MASK)); *tmpx++ = (mp_digit)(r & (mp_word)MP_MASK);
} }
/* At this point the ix'th digit of x should be zero */ /* At this point the ix'th digit of x should be zero */
/* propagate carries upwards as required*/ /* propagate carries upwards as required*/
while (u != 0) { while (u != 0u) {
*tmpx += u; *tmpx += u;
u = *tmpx >> DIGIT_BIT; u = *tmpx >> DIGIT_BIT;
*tmpx++ &= MP_MASK; *tmpx++ &= MP_MASK;

14
bn_mp_montgomery_setup.c
View File

@ -30,24 +30,24 @@ int mp_montgomery_setup(const mp_int *n, mp_digit *rho)
*/ */
b = n->dp[0]; b = n->dp[0];
if ((b & 1) == 0) { if ((b & 1u) == 0u) {
return MP_VAL; return MP_VAL;
} }
x = (((b + 2) & 4) << 1) + b; /* here x*a==1 mod 2**4 */ x = (((b + 2u) & 4u) << 1) + b; /* here x*a==1 mod 2**4 */
x *= 2 - (b * x); /* here x*a==1 mod 2**8 */ x *= 2u - (b * x); /* here x*a==1 mod 2**8 */
#if !defined(MP_8BIT) #if !defined(MP_8BIT)
x *= 2 - (b * x); /* here x*a==1 mod 2**16 */ x *= 2u - (b * x); /* here x*a==1 mod 2**16 */
#endif #endif
#if defined(MP_64BIT) || !(defined(MP_8BIT) || defined(MP_16BIT)) #if defined(MP_64BIT) || !(defined(MP_8BIT) || defined(MP_16BIT))
x *= 2 - (b * x); /* here x*a==1 mod 2**32 */ x *= 2u - (b * x); /* here x*a==1 mod 2**32 */
#endif #endif
#ifdef MP_64BIT #ifdef MP_64BIT
x *= 2 - (b * x); /* here x*a==1 mod 2**64 */ x *= 2u - (b * x); /* here x*a==1 mod 2**64 */
#endif #endif
/* rho = -1/m mod b */ /* rho = -1/m mod b */
*rho = (mp_digit)(((mp_word)1 << ((mp_word) DIGIT_BIT)) - x) & MP_MASK; *rho = (mp_digit)(((mp_word)1 << (mp_word)DIGIT_BIT) - x) & MP_MASK;
return MP_OKAY; return MP_OKAY;
} }

4
bn_mp_mul.c
View File

@ -43,9 +43,9 @@ int mp_mul(const mp_int *a, const mp_int *b, mp_int *c)
int digs = a->used + b->used + 1; int digs = a->used + b->used + 1;
#ifdef BN_FAST_S_MP_MUL_DIGS_C #ifdef BN_FAST_S_MP_MUL_DIGS_C
if ((digs < MP_WARRAY) && if ((digs < (int)MP_WARRAY) &&
(MIN(a->used, b->used) <= (MIN(a->used, b->used) <=
(1 << ((CHAR_BIT * sizeof(mp_word)) - (2 * DIGIT_BIT))))) { (int)(1u << (((size_t)CHAR_BIT * sizeof(mp_word)) - (2u * (size_t)DIGIT_BIT))))) {
res = fast_s_mp_mul_digs(a, b, c, digs); res = fast_s_mp_mul_digs(a, b, c, digs);
} else } else
#endif #endif

6
bn_mp_mul_2.c
View File

@ -46,10 +46,10 @@ int mp_mul_2(const mp_int *a, mp_int *b)
/* get what will be the *next* carry bit from the /* get what will be the *next* carry bit from the
* MSB of the current digit * MSB of the current digit
*/ */
rr = *tmpa >> ((mp_digit)(DIGIT_BIT - 1)); rr = *tmpa >> (mp_digit)(DIGIT_BIT - 1);
/* now shift up this digit, add in the carry [from the previous] */ /* now shift up this digit, add in the carry [from the previous] */
*tmpb++ = ((*tmpa++ << ((mp_digit)1)) | r) & MP_MASK; *tmpb++ = ((*tmpa++ << 1uL) | r) & MP_MASK;
/* copy the carry that would be from the source /* copy the carry that would be from the source
* digit into the next iteration * digit into the next iteration
@ -58,7 +58,7 @@ int mp_mul_2(const mp_int *a, mp_int *b)
} }
/* new leading digit? */ /* new leading digit? */
if (r != 0) { if (r != 0u) {
/* add a MSB which is always 1 at this point */ /* add a MSB which is always 1 at this point */
*tmpb = 1; *tmpb = 1;
++(b->used); ++(b->used);

12
bn_mp_mul_2d.c
View File

@ -28,14 +28,14 @@ int mp_mul_2d(const mp_int *a, int b, mp_int *c)
} }
} }
if (c->alloc < (int)(c->used + (b / DIGIT_BIT) + 1)) { if (c->alloc < (c->used + (b / DIGIT_BIT) + 1)) {
if ((res = mp_grow(c, c->used + (b / DIGIT_BIT) + 1)) != MP_OKAY) { if ((res = mp_grow(c, c->used + (b / DIGIT_BIT) + 1)) != MP_OKAY) {
return res; return res;
} }
} }
/* shift by as many digits in the bit count */ /* shift by as many digits in the bit count */
if (b >= (int)DIGIT_BIT) { if (b >= DIGIT_BIT) {
if ((res = mp_lshd(c, b / DIGIT_BIT)) != MP_OKAY) { if ((res = mp_lshd(c, b / DIGIT_BIT)) != MP_OKAY) {
return res; return res;
} }
@ -43,15 +43,15 @@ int mp_mul_2d(const mp_int *a, int b, mp_int *c)
/* shift any bit count < DIGIT_BIT */ /* shift any bit count < DIGIT_BIT */
d = (mp_digit)(b % DIGIT_BIT); d = (mp_digit)(b % DIGIT_BIT);
if (d != 0) { if (d != 0u) {
mp_digit *tmpc, shift, mask, r, rr; mp_digit *tmpc, shift, mask, r, rr;
int x; int x;
/* bitmask for carries */ /* bitmask for carries */
mask = (((mp_digit)1) << d) - 1; mask = (1uL << d) - 1uL;
/* shift for msbs */ /* shift for msbs */
shift = DIGIT_BIT - d; shift = (mp_digit)DIGIT_BIT - d;
/* alias */ /* alias */
tmpc = c->dp; tmpc = c->dp;
@ -71,7 +71,7 @@ int mp_mul_2d(const mp_int *a, int b, mp_int *c)
} }
/* set final carry */ /* set final carry */
if (r != 0) { if (r != 0u) {
c->dp[(c->used)++] = r; c->dp[(c->used)++] = r;
} }
} }

4
bn_mp_mul_d.c
View File

@ -50,10 +50,10 @@ int mp_mul_d(const mp_int *a, mp_digit b, mp_int *c)
r = (mp_word)u + ((mp_word)*tmpa++ * (mp_word)b); r = (mp_word)u + ((mp_word)*tmpa++ * (mp_word)b);
/* mask off higher bits to get a single digit */ /* mask off higher bits to get a single digit */
*tmpc++ = (mp_digit)(r & ((mp_word)MP_MASK)); *tmpc++ = (mp_digit)(r & (mp_word)MP_MASK);
/* send carry into next iteration */ /* send carry into next iteration */
u = (mp_digit)(r >> ((mp_word)DIGIT_BIT)); u = (mp_digit)(r >> (mp_word)DIGIT_BIT);
} }
/* store final carry [if any] and increment ix offset */ /* store final carry [if any] and increment ix offset */

8
bn_mp_n_root_ex.c
View File

@ -31,7 +31,7 @@ int mp_n_root_ex(const mp_int *a, mp_digit b, mp_int *c, int fast)
int res; int res;
/* input must be positive if b is even */ /* input must be positive if b is even */
if (((b & 1) == 0) && (a->sign == MP_NEG)) { if (((b & 1u) == 0u) && (a->sign == MP_NEG)) {
return MP_VAL; return MP_VAL;
} }
@ -52,7 +52,7 @@ int mp_n_root_ex(const mp_int *a, mp_digit b, mp_int *c, int fast)
a_.sign = MP_ZPOS; a_.sign = MP_ZPOS;
/* t2 = 2 */ /* t2 = 2 */
mp_set(&t2, 2); mp_set(&t2, 2uL);
do { do {
/* t1 = t2 */ /* t1 = t2 */
@ -63,7 +63,7 @@ int mp_n_root_ex(const mp_int *a, mp_digit b, mp_int *c, int fast)
/* t2 = t1 - ((t1**b - a) / (b * t1**(b-1))) */ /* t2 = t1 - ((t1**b - a) / (b * t1**(b-1))) */
/* t3 = t1**(b-1) */ /* t3 = t1**(b-1) */
if ((res = mp_expt_d_ex(&t1, b - 1, &t3, fast)) != MP_OKAY) { if ((res = mp_expt_d_ex(&t1, b - 1u, &t3, fast)) != MP_OKAY) {
goto LBL_T3; goto LBL_T3;
} }
@ -101,7 +101,7 @@ int mp_n_root_ex(const mp_int *a, mp_digit b, mp_int *c, int fast)
} }
if (mp_cmp(&t2, &a_) == MP_GT) { if (mp_cmp(&t2, &a_) == MP_GT) {
if ((res = mp_sub_d(&t1, 1, &t1)) != MP_OKAY) { if ((res = mp_sub_d(&t1, 1uL, &t1)) != MP_OKAY) {
goto LBL_T3; goto LBL_T3;
} }
} else { } else {

2
bn_mp_prime_fermat.c
View File

@ -32,7 +32,7 @@ int mp_prime_fermat(const mp_int *a, const mp_int *b, int *result)
*result = MP_NO; *result = MP_NO;
/* ensure b > 1 */ /* ensure b > 1 */
if (mp_cmp_d(b, 1) != MP_GT) { if (mp_cmp_d(b, 1uL) != MP_GT) {
return MP_VAL; return MP_VAL;
} }

2
bn_mp_prime_is_divisible.c
View File

@ -35,7 +35,7 @@ int mp_prime_is_divisible(const mp_int *a, int *result)
} }
/* is the residue zero? */ /* is the residue zero? */
if (res == 0) { if (res == 0u) {
*result = MP_YES; *result = MP_YES;
return MP_OKAY; return MP_OKAY;
} }

8
bn_mp_prime_miller_rabin.c
View File

@ -31,7 +31,7 @@ int mp_prime_miller_rabin(const mp_int *a, const mp_int *b, int *result)
*result = MP_NO; *result = MP_NO;
/* ensure b > 1 */ /* ensure b > 1 */
if (mp_cmp_d(b, 1) != MP_GT) { if (mp_cmp_d(b, 1uL) != MP_GT) {
return MP_VAL; return MP_VAL;
} }
@ -39,7 +39,7 @@ int mp_prime_miller_rabin(const mp_int *a, const mp_int *b, int *result)
if ((err = mp_init_copy(&n1, a)) != MP_OKAY) { if ((err = mp_init_copy(&n1, a)) != MP_OKAY) {
return err; return err;
} }
if ((err = mp_sub_d(&n1, 1, &n1)) != MP_OKAY) { if ((err = mp_sub_d(&n1, 1uL, &n1)) != MP_OKAY) {
goto LBL_N1; goto LBL_N1;
} }
@ -67,7 +67,7 @@ int mp_prime_miller_rabin(const mp_int *a, const mp_int *b, int *result)
} }
/* if y != 1 and y != n1 do */ /* if y != 1 and y != n1 do */
if ((mp_cmp_d(&y, 1) != MP_EQ) && (mp_cmp(&y, &n1) != MP_EQ)) { if ((mp_cmp_d(&y, 1uL) != MP_EQ) && (mp_cmp(&y, &n1) != MP_EQ)) {
j = 1; j = 1;
/* while j <= s-1 and y != n1 */ /* while j <= s-1 and y != n1 */
while ((j <= (s - 1)) && (mp_cmp(&y, &n1) != MP_EQ)) { while ((j <= (s - 1)) && (mp_cmp(&y, &n1) != MP_EQ)) {
@ -76,7 +76,7 @@ int mp_prime_miller_rabin(const mp_int *a, const mp_int *b, int *result)
} }
/* if y == 1 then composite */ /* if y == 1 then composite */
if (mp_cmp_d(&y, 1) == MP_EQ) { if (mp_cmp_d(&y, 1uL) == MP_EQ) {
goto LBL_Y; goto LBL_Y;
} }

20
bn_mp_prime_next_prime.c
View File

@ -46,10 +46,10 @@ int mp_prime_next_prime(mp_int *a, int t, int bbs_style)
* however, the prime must be * however, the prime must be
* congruent to 3 mod 4 * congruent to 3 mod 4
*/ */
if ((ltm_prime_tab[x + 1] & 3) != 3) { if ((ltm_prime_tab[x + 1] & 3u) != 3u) {
/* scan upwards for a prime congruent to 3 mod 4 */ /* scan upwards for a prime congruent to 3 mod 4 */
for (y = x + 1; y < PRIME_SIZE; y++) { for (y = x + 1; y < PRIME_SIZE; y++) {
if ((ltm_prime_tab[y] & 3) == 3) { if ((ltm_prime_tab[y] & 3u) == 3u) {
mp_set(a, ltm_prime_tab[y]); mp_set(a, ltm_prime_tab[y]);
return MP_OKAY; return MP_OKAY;
} }
@ -62,8 +62,8 @@ int mp_prime_next_prime(mp_int *a, int t, int bbs_style)
} }
} }
/* at this point a maybe 1 */ /* at this point a maybe 1 */
if (mp_cmp_d(a, 1) == MP_EQ) { if (mp_cmp_d(a, 1uL) == MP_EQ) {
mp_set(a, 2); mp_set(a, 2uL);
return MP_OKAY; return MP_OKAY;
} }
/* fall through to the sieve */ /* fall through to the sieve */
@ -80,15 +80,15 @@ int mp_prime_next_prime(mp_int *a, int t, int bbs_style)
if (bbs_style == 1) { if (bbs_style == 1) {
/* if a mod 4 != 3 subtract the correct value to make it so */ /* if a mod 4 != 3 subtract the correct value to make it so */
if ((a->dp[0] & 3) != 3) { if ((a->dp[0] & 3u) != 3u) {
if ((err = mp_sub_d(a, (a->dp[0] & 3) + 1, a)) != MP_OKAY) { if ((err = mp_sub_d(a, (a->dp[0] & 3u) + 1u, a)) != MP_OKAY) {
return err; return err;
}; };
} }
} else { } else {
if (mp_iseven(a) == MP_YES) { if (mp_iseven(a) == MP_YES) {
/* force odd */ /* force odd */
if ((err = mp_sub_d(a, 1, a)) != MP_OKAY) { if ((err = mp_sub_d(a, 1uL, a)) != MP_OKAY) {
return err; return err;
} }
} }
@ -127,11 +127,11 @@ int mp_prime_next_prime(mp_int *a, int t, int bbs_style)
} }
/* set flag if zero */ /* set flag if zero */
if (res_tab[x] == 0) { if (res_tab[x] == 0u) {
y = 1; y = 1;
} }
} }
} while ((y == 1) && (step < ((((mp_digit)1) << DIGIT_BIT) - kstep))); } while ((y == 1) && (step < ((1uL << DIGIT_BIT) - kstep)));
/* add the step */ /* add the step */
if ((err = mp_add_d(a, step, a)) != MP_OKAY) { if ((err = mp_add_d(a, step, a)) != MP_OKAY) {
@ -139,7 +139,7 @@ int mp_prime_next_prime(mp_int *a, int t, int bbs_style)
} }
/* if didn't pass sieve and step == MAX then skip test */ /* if didn't pass sieve and step == MAX then skip test */
if ((y == 1) && (step >= ((((mp_digit)1) << DIGIT_BIT) - kstep))) { if ((y == 1) && (step >= ((1uL << DIGIT_BIT) - kstep))) {
continue; continue;
} }

6
bn_mp_prime_random_ex.c
View File

@ -49,7 +49,7 @@ int mp_prime_random_ex(mp_int *a, int t, int size, int flags, ltm_prime_callback
bsize = (size>>3) + ((size&7)?1:0); bsize = (size>>3) + ((size&7)?1:0);
/* we need a buffer of bsize bytes */ /* we need a buffer of bsize bytes */
tmp = OPT_CAST(unsigned char) XMALLOC(bsize); tmp = OPT_CAST(unsigned char) XMALLOC((size_t)bsize);
if (tmp == NULL) { if (tmp == NULL) {
return MP_MEM; return MP_MEM;
} }
@ -100,7 +100,7 @@ int mp_prime_random_ex(mp_int *a, int t, int size, int flags, ltm_prime_callback
if ((flags & LTM_PRIME_SAFE) != 0) { if ((flags & LTM_PRIME_SAFE) != 0) {
/* see if (a-1)/2 is prime */ /* see if (a-1)/2 is prime */
if ((err = mp_sub_d(a, 1, a)) != MP_OKAY) { if ((err = mp_sub_d(a, 1uL, a)) != MP_OKAY) {
goto error; goto error;
} }
if ((err = mp_div_2(a, a)) != MP_OKAY) { if ((err = mp_div_2(a, a)) != MP_OKAY) {
@ -119,7 +119,7 @@ int mp_prime_random_ex(mp_int *a, int t, int size, int flags, ltm_prime_callback
if ((err = mp_mul_2(a, a)) != MP_OKAY) { if ((err = mp_mul_2(a, a)) != MP_OKAY) {
goto error; goto error;
} }
if ((err = mp_add_d(a, 1, a)) != MP_OKAY) { if ((err = mp_add_d(a, 1uL, a)) != MP_OKAY) {
goto error; goto error;
} }
} }

4
bn_mp_rand.c
View File

@ -15,7 +15,7 @@
* Tom St Denis, tstdenis82@gmail.com, http://libtom.org * Tom St Denis, tstdenis82@gmail.com, http://libtom.org
*/ */
#if MP_GEN_RANDOM_MAX == 0xffffffff #if MP_GEN_RANDOM_MAX == 0xffffffffu
#define MP_GEN_RANDOM_SHIFT 32 #define MP_GEN_RANDOM_SHIFT 32
#elif MP_GEN_RANDOM_MAX == 32767 #elif MP_GEN_RANDOM_MAX == 32767
/* SHRT_MAX */ /* SHRT_MAX */
@ -54,7 +54,7 @@ int mp_rand(mp_int *a, int digits)
/* first place a random non-zero digit */ /* first place a random non-zero digit */
do { do {
d = s_gen_random(); d = s_gen_random();
} while (d == 0); } while (d == 0u);
if ((res = mp_add_d(a, d, a)) != MP_OKAY) { if ((res = mp_add_d(a, d, a)) != MP_OKAY) {
return res; return res;

8
bn_mp_read_radix.c
View File

@ -50,17 +50,17 @@ int mp_read_radix(mp_int *a, const char *str, int radix)
* [e.g. in hex] * [e.g. in hex]
*/ */
ch = (radix <= 36) ? (char)toupper((int)*str) : *str; ch = (radix <= 36) ? (char)toupper((int)*str) : *str;
pos = ch - '('; pos = (unsigned)(ch - '(');
if (mp_s_rmap_reverse_sz < pos) { if (mp_s_rmap_reverse_sz < pos) {
break; break;
} }
y = mp_s_rmap_reverse[pos]; y = (int)mp_s_rmap_reverse[pos];
/* if the char was found in the map /* if the char was found in the map
* and is less than the given radix add it * and is less than the given radix add it
* to the number, otherwise exit the loop. * to the number, otherwise exit the loop.
*/ */
if (y == 0xff || y >= radix) { if ((y == 0xff) || (y >= radix)) {
break; break;
} }
if ((res = mp_mul_d(a, (mp_digit)radix, a)) != MP_OKAY) { if ((res = mp_mul_d(a, (mp_digit)radix, a)) != MP_OKAY) {
@ -73,7 +73,7 @@ int mp_read_radix(mp_int *a, const char *str, int radix)
} }
/* if an illegal character was found, fail. */ /* if an illegal character was found, fail. */
if (!(*str == '\0' || *str == '\r' || *str == '\n')) { if (!((*str == '\0') || (*str == '\r') || (*str == '\n'))) {
mp_zero(a); mp_zero(a);
return MP_VAL; return MP_VAL;
} }

2
bn_mp_read_signed_bin.c
View File

@ -26,7 +26,7 @@ int mp_read_signed_bin(mp_int *a, const unsigned char *b, int c)
} }
/* first byte is 0 for positive, non-zero for negative */ /* first byte is 0 for positive, non-zero for negative */
if (b[0] == 0) { if (b[0] == (unsigned char)0) {
a->sign = MP_ZPOS; a->sign = MP_ZPOS;
} else { } else {
a->sign = MP_NEG; a->sign = MP_NEG;

2
bn_mp_read_unsigned_bin.c
View File

@ -41,7 +41,7 @@ int mp_read_unsigned_bin(mp_int *a, const unsigned char *b, int c)
a->used += 1; a->used += 1;
#else #else
a->dp[0] = (*b & MP_MASK); a->dp[0] = (*b & MP_MASK);
a->dp[1] |= ((*b++ >> 7U) & 1); a->dp[1] |= ((*b++ >> 7) & 1u);
a->used += 2; a->used += 2;
#endif #endif
} }

6
bn_mp_reduce.c
View File

@ -33,7 +33,7 @@ int mp_reduce(mp_int *x, const mp_int *m, const mp_int *mu)
mp_rshd(&q, um - 1); mp_rshd(&q, um - 1);
/* according to HAC this optimization is ok */ /* according to HAC this optimization is ok */
if (((mp_digit) um) > (((mp_digit)1) << (DIGIT_BIT - 1))) { if ((mp_digit)um > (1uL << (DIGIT_BIT - 1))) {
if ((res = mp_mul(&q, mu, &q)) != MP_OKAY) { if ((res = mp_mul(&q, mu, &q)) != MP_OKAY) {
goto CLEANUP; goto CLEANUP;
} }
@ -73,8 +73,8 @@ int mp_reduce(mp_int *x, const mp_int *m, const mp_int *mu)
} }
/* If x < 0, add b**(k+1) to it */ /* If x < 0, add b**(k+1) to it */
if (mp_cmp_d(x, 0) == MP_LT) { if (mp_cmp_d(x, 0uL) == MP_LT) {
mp_set(&q, 1); mp_set(&q, 1uL);
if ((res = mp_lshd(&q, um + 1)) != MP_OKAY) if ((res = mp_lshd(&q, um + 1)) != MP_OKAY)
goto CLEANUP; goto CLEANUP;
if ((res = mp_add(x, &q, x)) != MP_OKAY) if ((res = mp_add(x, &q, x)) != MP_OKAY)

2
bn_mp_reduce_2k.c
View File

@ -32,7 +32,7 @@ top:
goto ERR; goto ERR;
} }
if (d != 1) { if (d != 1u) {
/* q = q * d */ /* q = q * d */
if ((res = mp_mul_d(&q, d, &q)) != MP_OKAY) { if ((res = mp_mul_d(&q, d, &q)) != MP_OKAY) {
goto ERR; goto ERR;

2
bn_mp_reduce_is_2k.c
View File

@ -32,7 +32,7 @@ int mp_reduce_is_2k(const mp_int *a)
/* Test every bit from the second digit up, must be 1 */ /* Test every bit from the second digit up, must be 1 */
for (ix = DIGIT_BIT; ix < iy; ix++) { for (ix = DIGIT_BIT; ix < iy; ix++) {
if ((a->dp[iw] & iz) == 0) { if ((a->dp[iw] & iz) == 0u) {
return MP_NO; return MP_NO;
} }
iz <<= 1; iz <<= 1;

2
bn_mp_set.c
View File

@ -20,7 +20,7 @@ void mp_set(mp_int *a, mp_digit b)
{ {
mp_zero(a); mp_zero(a);
a->dp[0] = b & MP_MASK; a->dp[0] = b & MP_MASK;
a->used = (a->dp[0] != 0) ? 1 : 0; a->used = (a->dp[0] != 0u) ? 1 : 0;
} }
#endif #endif

2
bn_mp_set_int.c
View File

@ -30,7 +30,7 @@ int mp_set_int(mp_int *a, unsigned long b)
} }
/* OR in the top four bits of the source */ /* OR in the top four bits of the source */
a->dp[0] |= (b >> 28) & 15; a->dp[0] |= (mp_digit)(b >> 28) & 15uL;
/* shift the source up to the next four bits */ /* shift the source up to the next four bits */
b <<= 4; b <<= 4;

2
bn_mp_shrink.c
View File

@ -26,7 +26,7 @@ int mp_shrink(mp_int *a)
} }
if (a->alloc != used) { if (a->alloc != used) {
if ((tmp = OPT_CAST(mp_digit) XREALLOC(a->dp, sizeof(mp_digit) * used)) == NULL) { if ((tmp = OPT_CAST(mp_digit) XREALLOC(a->dp, sizeof(mp_digit) * (size_t)used)) == NULL) {
return MP_MEM; return MP_MEM;
} }
a->dp = tmp; a->dp = tmp;

4
bn_mp_sqr.c
View File

@ -35,9 +35,9 @@ int mp_sqr(const mp_int *a, mp_int *b)
{ {
#ifdef BN_FAST_S_MP_SQR_C #ifdef BN_FAST_S_MP_SQR_C
/* can we use the fast comba multiplier? */ /* can we use the fast comba multiplier? */
if ((((a->used * 2) + 1) < MP_WARRAY) && if ((((a->used * 2) + 1) < (int)MP_WARRAY) &&
(a->used < (a->used <
(1 << (((sizeof(mp_word) * CHAR_BIT) - (2 * DIGIT_BIT)) - 1)))) { (int)(1u << (((sizeof(mp_word) * (size_t)CHAR_BIT) - (2u * (size_t)DIGIT_BIT)) - 1u)))) {
res = fast_s_mp_sqr(a, b); res = fast_s_mp_sqr(a, b);
} else } else
#endif #endif

28
bn_mp_sqrtmod_prime.c
View File

@ -22,11 +22,11 @@ int mp_sqrtmod_prime(const mp_int *n, const mp_int *prime, mp_int *ret)
mp_digit i; mp_digit i;
/* first handle the simple cases */ /* first handle the simple cases */
if (mp_cmp_d(n, 0) == MP_EQ) { if (mp_cmp_d(n, 0uL) == MP_EQ) {
mp_zero(ret); mp_zero(ret);
return MP_OKAY; return MP_OKAY;
} }
if (mp_cmp_d(prime, 2) == MP_EQ) return MP_VAL; /* prime must be odd */ if (mp_cmp_d(prime, 2uL) == MP_EQ) return MP_VAL; /* prime must be odd */
if ((res = mp_jacobi(n, prime, &legendre)) != MP_OKAY) return res; if ((res = mp_jacobi(n, prime, &legendre)) != MP_OKAY) return res;
if (legendre == -1) return MP_VAL; /* quadratic non-residue mod prime */ if (legendre == -1) return MP_VAL; /* quadratic non-residue mod prime */
@ -38,9 +38,9 @@ int mp_sqrtmod_prime(const mp_int *n, const mp_int *prime, mp_int *ret)
* compute directly: res = n^(prime+1)/4 mod prime * compute directly: res = n^(prime+1)/4 mod prime
* Handbook of Applied Cryptography algorithm 3.36 * Handbook of Applied Cryptography algorithm 3.36
*/ */
if ((res = mp_mod_d(prime, 4, &i)) != MP_OKAY) goto cleanup; if ((res = mp_mod_d(prime, 4uL, &i)) != MP_OKAY) goto cleanup;
if (i == 3) { if (i == 3u) {
if ((res = mp_add_d(prime, 1, &t1)) != MP_OKAY) goto cleanup; if ((res = mp_add_d(prime, 1uL, &t1)) != MP_OKAY) goto cleanup;
if ((res = mp_div_2(&t1, &t1)) != MP_OKAY) goto cleanup; if ((res = mp_div_2(&t1, &t1)) != MP_OKAY) goto cleanup;
if ((res = mp_div_2(&t1, &t1)) != MP_OKAY) goto cleanup; if ((res = mp_div_2(&t1, &t1)) != MP_OKAY) goto cleanup;
if ((res = mp_exptmod(n, &t1, prime, ret)) != MP_OKAY) goto cleanup; if ((res = mp_exptmod(n, &t1, prime, ret)) != MP_OKAY) goto cleanup;
@ -52,30 +52,30 @@ int mp_sqrtmod_prime(const mp_int *n, const mp_int *prime, mp_int *ret)
/* factor out powers of 2 from prime-1, defining Q and S as: prime-1 = Q*2^S */ /* factor out powers of 2 from prime-1, defining Q and S as: prime-1 = Q*2^S */
if ((res = mp_copy(prime, &Q)) != MP_OKAY) goto cleanup; if ((res = mp_copy(prime, &Q)) != MP_OKAY) goto cleanup;
if ((res = mp_sub_d(&Q, 1, &Q)) != MP_OKAY) goto cleanup; if ((res = mp_sub_d(&Q, 1uL, &Q)) != MP_OKAY) goto cleanup;
/* Q = prime - 1 */ /* Q = prime - 1 */
mp_zero(&S); mp_zero(&S);
/* S = 0 */ /* S = 0 */
while (mp_iseven(&Q) != MP_NO) { while (mp_iseven(&Q) != MP_NO) {
if ((res = mp_div_2(&Q, &Q)) != MP_OKAY) goto cleanup; if ((res = mp_div_2(&Q, &Q)) != MP_OKAY) goto cleanup;
/* Q = Q / 2 */ /* Q = Q / 2 */
if ((res = mp_add_d(&S, 1, &S)) != MP_OKAY) goto cleanup; if ((res = mp_add_d(&S, 1uL, &S)) != MP_OKAY) goto cleanup;
/* S = S + 1 */ /* S = S + 1 */
} }
/* find a Z such that the Legendre symbol (Z|prime) == -1 */ /* find a Z such that the Legendre symbol (Z|prime) == -1 */
if ((res = mp_set_int(&Z, 2)) != MP_OKAY) goto cleanup; if ((res = mp_set_int(&Z, 2uL)) != MP_OKAY) goto cleanup;
/* Z = 2 */ /* Z = 2 */
while (1) { while (1) {
if ((res = mp_jacobi(&Z, prime, &legendre)) != MP_OKAY) goto cleanup; if ((res = mp_jacobi(&Z, prime, &legendre)) != MP_OKAY) goto cleanup;
if (legendre == -1) break; if (legendre == -1) break;
if ((res = mp_add_d(&Z, 1, &Z)) != MP_OKAY) goto cleanup; if ((res = mp_add_d(&Z, 1uL, &Z)) != MP_OKAY) goto cleanup;
/* Z = Z + 1 */ /* Z = Z + 1 */
} }
if ((res = mp_exptmod(&Z, &Q, prime, &C)) != MP_OKAY) goto cleanup; if ((res = mp_exptmod(&Z, &Q, prime, &C)) != MP_OKAY) goto cleanup;
/* C = Z ^ Q mod prime */ /* C = Z ^ Q mod prime */
if ((res = mp_add_d(&Q, 1, &t1)) != MP_OKAY) goto cleanup; if ((res = mp_add_d(&Q, 1uL, &t1)) != MP_OKAY) goto cleanup;
if ((res = mp_div_2(&t1, &t1)) != MP_OKAY) goto cleanup; if ((res = mp_div_2(&t1, &t1)) != MP_OKAY) goto cleanup;
/* t1 = (Q + 1) / 2 */ /* t1 = (Q + 1) / 2 */
if ((res = mp_exptmod(n, &t1, prime, &R)) != MP_OKAY) goto cleanup; if ((res = mp_exptmod(n, &t1, prime, &R)) != MP_OKAY) goto cleanup;
@ -84,24 +84,24 @@ int mp_sqrtmod_prime(const mp_int *n, const mp_int *prime, mp_int *ret)
/* T = n ^ Q mod prime */ /* T = n ^ Q mod prime */
if ((res = mp_copy(&S, &M)) != MP_OKAY) goto cleanup; if ((res = mp_copy(&S, &M)) != MP_OKAY) goto cleanup;
/* M = S */ /* M = S */
if ((res = mp_set_int(&two, 2)) != MP_OKAY) goto cleanup; if ((res = mp_set_int(&two, 2uL)) != MP_OKAY) goto cleanup;
res = MP_VAL; res = MP_VAL;
while (1) { while (1) {
if ((res = mp_copy(&T, &t1)) != MP_OKAY) goto cleanup; if ((res = mp_copy(&T, &t1)) != MP_OKAY) goto cleanup;
i = 0; i = 0;
while (1) { while (1) {
if (mp_cmp_d(&t1, 1) == MP_EQ) break; if (mp_cmp_d(&t1, 1uL) == MP_EQ) break;
if ((res = mp_exptmod(&t1, &two, prime, &t1)) != MP_OKAY) goto cleanup; if ((res = mp_exptmod(&t1, &two, prime, &t1)) != MP_OKAY) goto cleanup;
i++; i++;
} }
if (i == 0) { if (i == 0u) {
if ((res = mp_copy(&R, ret)) != MP_OKAY) goto cleanup; if ((res = mp_copy(&R, ret)) != MP_OKAY) goto cleanup;
res = MP_OKAY; res = MP_OKAY;
goto cleanup; goto cleanup;
} }
if ((res = mp_sub_d(&M, i, &t1)) != MP_OKAY) goto cleanup; if ((res = mp_sub_d(&M, i, &t1)) != MP_OKAY) goto cleanup;
if ((res = mp_sub_d(&t1, 1, &t1)) != MP_OKAY) goto cleanup; if ((res = mp_sub_d(&t1, 1uL, &t1)) != MP_OKAY) goto cleanup;
if ((res = mp_exptmod(&two, &t1, prime, &t1)) != MP_OKAY) goto cleanup; if ((res = mp_exptmod(&two, &t1, prime, &t1)) != MP_OKAY) goto cleanup;
/* t1 = 2 ^ (M - i - 1) */ /* t1 = 2 ^ (M - i - 1) */
if ((res = mp_exptmod(&C, &t1, prime, &t1)) != MP_OKAY) goto cleanup; if ((res = mp_exptmod(&C, &t1, prime, &t1)) != MP_OKAY) goto cleanup;

4
bn_mp_sub_d.c
View File

@ -67,13 +67,13 @@ int mp_sub_d(const mp_int *a, mp_digit b, mp_int *c)
/* subtract first digit */ /* subtract first digit */
*tmpc = *tmpa++ - b; *tmpc = *tmpa++ - b;
mu = *tmpc >> ((sizeof(mp_digit) * CHAR_BIT) - 1); mu = *tmpc >> ((sizeof(mp_digit) * (size_t)CHAR_BIT) - 1u);
*tmpc++ &= MP_MASK; *tmpc++ &= MP_MASK;
/* handle rest of the digits */ /* handle rest of the digits */
for (ix = 1; ix < a->used; ix++) { for (ix = 1; ix < a->used; ix++) {
*tmpc = *tmpa++ - mu; *tmpc = *tmpa++ - mu;
mu = *tmpc >> ((sizeof(mp_digit) * CHAR_BIT) - 1); mu = *tmpc >> ((sizeof(mp_digit) * (size_t)CHAR_BIT) - 1u);
*tmpc++ &= MP_MASK; *tmpc++ &= MP_MASK;
} }
} }

2
bn_mp_to_signed_bin_n.c
View File

@ -21,7 +21,7 @@ int mp_to_signed_bin_n(const mp_int *a, unsigned char *b, unsigned long *outlen)
if (*outlen < (unsigned long)mp_signed_bin_size(a)) { if (*outlen < (unsigned long)mp_signed_bin_size(a)) {
return MP_VAL; return MP_VAL;
} }
*outlen = mp_signed_bin_size(a); *outlen = (unsigned long)mp_signed_bin_size(a);
return mp_to_signed_bin(a, b); return mp_to_signed_bin(a, b);
} }
#endif #endif

4
bn_mp_to_unsigned_bin.c
View File

@ -28,9 +28,9 @@ int mp_to_unsigned_bin(const mp_int *a, unsigned char *b)
x = 0; x = 0;
while (mp_iszero(&t) == MP_NO) { while (mp_iszero(&t) == MP_NO) {
#ifndef MP_8BIT #ifndef MP_8BIT
b[x++] = (unsigned char)(t.dp[0] & 255); b[x++] = (unsigned char)(t.dp[0] & 255u);
#else #else
b[x++] = (unsigned char)(t.dp[0] | ((t.dp[1] & 0x01) << 7)); b[x++] = (unsigned char)(t.dp[0] | ((t.dp[1] & 1u) << 7));
#endif #endif
if ((res = mp_div_2d(&t, 8, &t, NULL)) != MP_OKAY) { if ((res = mp_div_2d(&t, 8, &t, NULL)) != MP_OKAY) {
mp_clear(&t); mp_clear(&t);

2
bn_mp_to_unsigned_bin_n.c
View File

@ -21,7 +21,7 @@ int mp_to_unsigned_bin_n(const mp_int *a, unsigned char *b, unsigned long *outle
if (*outlen < (unsigned long)mp_unsigned_bin_size(a)) { if (*outlen < (unsigned long)mp_unsigned_bin_size(a)) {
return MP_VAL; return MP_VAL;
} }
*outlen = mp_unsigned_bin_size(a); *outlen = (unsigned long)mp_unsigned_bin_size(a);
return mp_to_unsigned_bin(a, b); return mp_to_unsigned_bin(a, b);
} }
#endif #endif

2
bn_mp_toom_mul.c
View File

@ -219,7 +219,7 @@ int mp_toom_mul(const mp_int *a, const mp_int *b, mp_int *c)
goto ERR; goto ERR;
} }
/* 3r2 - r1 - r3 */ /* 3r2 - r1 - r3 */
if ((res = mp_mul_d(&w2, 3, &w2)) != MP_OKAY) { if ((res = mp_mul_d(&w2, 3uL, &w2)) != MP_OKAY) {
goto ERR; goto ERR;
} }
if ((res = mp_sub(&w2, &w1, &w2)) != MP_OKAY) { if ((res = mp_sub(&w2, &w1, &w2)) != MP_OKAY) {

2
bn_mp_toom_sqr.c
View File

@ -162,7 +162,7 @@ int mp_toom_sqr(const mp_int *a, mp_int *b)
goto ERR; goto ERR;
} }
/* 3r2 - r1 - r3 */ /* 3r2 - r1 - r3 */
if ((res = mp_mul_d(&w2, 3, &w2)) != MP_OKAY) { if ((res = mp_mul_d(&w2, 3uL, &w2)) != MP_OKAY) {
goto ERR; goto ERR;
} }
if ((res = mp_sub(&w2, &w1, &w2)) != MP_OKAY) { if ((res = mp_sub(&w2, &w1, &w2)) != MP_OKAY) {

2
bn_mp_unsigned_bin_size.c
View File

@ -19,7 +19,7 @@
int mp_unsigned_bin_size(const mp_int *a) int mp_unsigned_bin_size(const mp_int *a)
{ {
int size = mp_count_bits(a); int size = mp_count_bits(a);
return (size / 8) + (((size & 7) != 0) ? 1 : 0); return (size / 8) + ((((unsigned)size & 7u) != 0u) ? 1 : 0);
} }
#endif #endif

4
bn_s_mp_add.c
View File

@ -67,7 +67,7 @@ int s_mp_add(const mp_int *a, const mp_int *b, mp_int *c)
*tmpc = *tmpa++ + *tmpb++ + u; *tmpc = *tmpa++ + *tmpb++ + u;
/* U = carry bit of T[i] */ /* U = carry bit of T[i] */
u = *tmpc >> ((mp_digit)DIGIT_BIT); u = *tmpc >> (mp_digit)DIGIT_BIT;
/* take away carry bit from T[i] */ /* take away carry bit from T[i] */
*tmpc++ &= MP_MASK; *tmpc++ &= MP_MASK;
@ -82,7 +82,7 @@ int s_mp_add(const mp_int *a, const mp_int *b, mp_int *c)
*tmpc = x->dp[i] + u; *tmpc = x->dp[i] + u;
/* U = carry bit of T[i] */ /* U = carry bit of T[i] */
u = *tmpc >> ((mp_digit)DIGIT_BIT); u = *tmpc >> (mp_digit)DIGIT_BIT;
/* take away carry bit from T[i] */ /* take away carry bit from T[i] */
*tmpc++ &= MP_MASK; *tmpc++ &= MP_MASK;

4
bn_s_mp_exptmod.c
View File

@ -25,7 +25,7 @@ int s_mp_exptmod(const mp_int *G, const mp_int *X, const mp_int *P, mp_int *Y, i
mp_int M[TAB_SIZE], res, mu; mp_int M[TAB_SIZE], res, mu;
mp_digit buf; mp_digit buf;
int err, bitbuf, bitcpy, bitcnt, mode, digidx, x, y, winsize; int err, bitbuf, bitcpy, bitcnt, mode, digidx, x, y, winsize;
int (*redux)(mp_int *, const mp_int *, const mp_int *); int (*redux)(mp_int *x, const mp_int *m, const mp_int *mu);
/* find window size */ /* find window size */
x = mp_count_bits(X); x = mp_count_bits(X);
@ -133,7 +133,7 @@ int s_mp_exptmod(const mp_int *G, const mp_int *X, const mp_int *P, mp_int *Y, i
if ((err = mp_init(&res)) != MP_OKAY) { if ((err = mp_init(&res)) != MP_OKAY) {
goto LBL_MU; goto LBL_MU;
} }
mp_set(&res, 1); mp_set(&res, 1uL);
/* set initial mode and bit cnt */ /* set initial mode and bit cnt */
mode = 0; mode = 0;

8
bn_s_mp_mul_digs.c
View File

@ -28,9 +28,9 @@ int s_mp_mul_digs(const mp_int *a, const mp_int *b, mp_int *c, int digs)
mp_digit tmpx, *tmpt, *tmpy; mp_digit tmpx, *tmpt, *tmpy;
/* can we use the fast multiplier? */ /* can we use the fast multiplier? */
if (((digs) < MP_WARRAY) && if ((digs < (int)MP_WARRAY) &&
(MIN(a->used, b->used) < (MIN(a->used, b->used) <
(1 << ((CHAR_BIT * sizeof(mp_word)) - (2 * DIGIT_BIT))))) { (int)(1u << (((size_t)CHAR_BIT * sizeof(mp_word)) - (2u * (size_t)DIGIT_BIT))))) {
return fast_s_mp_mul_digs(a, b, c, digs); return fast_s_mp_mul_digs(a, b, c, digs);
} }
@ -66,10 +66,10 @@ int s_mp_mul_digs(const mp_int *a, const mp_int *b, mp_int *c, int digs)
(mp_word)u; (mp_word)u;
/* the new column is the lower part of the result */ /* the new column is the lower part of the result */
*tmpt++ = (mp_digit)(r & ((mp_word) MP_MASK)); *tmpt++ = (mp_digit)(r & (mp_word)MP_MASK);
/* get the carry word from the result */ /* get the carry word from the result */
u = (mp_digit)(r >> ((mp_word) DIGIT_BIT)); u = (mp_digit)(r >> (mp_word)DIGIT_BIT);
} }
/* set carry if it is placed below digs */ /* set carry if it is placed below digs */
if ((ix + iy) < digs) { if ((ix + iy) < digs) {

8
bn_s_mp_mul_high_digs.c
View File

@ -28,8 +28,8 @@ int s_mp_mul_high_digs(const mp_int *a, const mp_int *b, mp_int *c, int digs)
/* can we use the fast multiplier? */ /* can we use the fast multiplier? */
#ifdef BN_FAST_S_MP_MUL_HIGH_DIGS_C #ifdef BN_FAST_S_MP_MUL_HIGH_DIGS_C
if (((a->used + b->used + 1) < MP_WARRAY) if (((a->used + b->used + 1) < (int)MP_WARRAY)
&& (MIN(a->used, b->used) < (1 << ((CHAR_BIT * sizeof(mp_word)) - (2 * DIGIT_BIT))))) { && (MIN(a->used, b->used) < (int)(1u << (((size_t)CHAR_BIT * sizeof(mp_word)) - (2u * (size_t)DIGIT_BIT))))) {
return fast_s_mp_mul_high_digs(a, b, c, digs); return fast_s_mp_mul_high_digs(a, b, c, digs);
} }
#endif #endif
@ -61,10 +61,10 @@ int s_mp_mul_high_digs(const mp_int *a, const mp_int *b, mp_int *c, int digs)
(mp_word)u; (mp_word)u;
/* get the lower part */ /* get the lower part */
*tmpt++ = (mp_digit)(r & ((mp_word) MP_MASK)); *tmpt++ = (mp_digit)(r & (mp_word)MP_MASK);
/* carry the carry */ /* carry the carry */
u = (mp_digit)(r >> ((mp_word) DIGIT_BIT)); u = (mp_digit)(r >> (mp_word)DIGIT_BIT);
} }
*tmpt = u; *tmpt = u;
} }

20
bn_s_mp_sqr.c
View File

@ -38,10 +38,10 @@ int s_mp_sqr(const mp_int *a, mp_int *b)
((mp_word)a->dp[ix] * (mp_word)a->dp[ix]); ((mp_word)a->dp[ix] * (mp_word)a->dp[ix]);
/* store lower part in result */ /* store lower part in result */
t.dp[ix+ix] = (mp_digit)(r & ((mp_word)MP_MASK)); t.dp[ix+ix] = (mp_digit)(r & (mp_word)MP_MASK);
/* get the carry */ /* get the carry */
u = (mp_digit)(r >> ((mp_word)DIGIT_BIT)); u = (mp_digit)(r >> (mp_word)DIGIT_BIT);
/* left hand side of A[ix] * A[iy] */ /* left hand side of A[ix] * A[iy] */
tmpx = a->dp[ix]; tmpx = a->dp[ix];
@ -51,24 +51,24 @@ int s_mp_sqr(const mp_int *a, mp_int *b)
for (iy = ix + 1; iy < pa; iy++) { for (iy = ix + 1; iy < pa; iy++) {
/* first calculate the product */ /* first calculate the product */
r = ((mp_word)tmpx) * ((mp_word)a->dp[iy]); r = (mp_word)tmpx * (mp_word)a->dp[iy];
/* now calculate the double precision result, note we use /* now calculate the double precision result, note we use
* addition instead of *2 since it's easier to optimize * addition instead of *2 since it's easier to optimize
*/ */
r = ((mp_word) *tmpt) + r + r + ((mp_word) u); r = (mp_word)*tmpt + r + r + (mp_word)u;
/* store lower part */ /* store lower part */
*tmpt++ = (mp_digit)(r & ((mp_word) MP_MASK)); *tmpt++ = (mp_digit)(r & (mp_word)MP_MASK);
/* get carry */ /* get carry */
u = (mp_digit)(r >> ((mp_word) DIGIT_BIT)); u = (mp_digit)(r >> (mp_word)DIGIT_BIT);
} }
/* propagate upwards */ /* propagate upwards */
while (u != ((mp_digit) 0)) { while (u != 0uL) {
r = ((mp_word) *tmpt) + ((mp_word) u); r = (mp_word)*tmpt + (mp_word)u;
*tmpt++ = (mp_digit)(r & ((mp_word) MP_MASK)); *tmpt++ = (mp_digit)(r & (mp_word)MP_MASK);
u = (mp_digit)(r >> ((mp_word) DIGIT_BIT)); u = (mp_digit)(r >> (mp_word)DIGIT_BIT);
} }
} }

4
bn_s_mp_sub.c
View File

@ -53,7 +53,7 @@ int s_mp_sub(const mp_int *a, const mp_int *b, mp_int *c)
* if a carry does occur it will propagate all the way to the * if a carry does occur it will propagate all the way to the
* MSB. As a result a single shift is enough to get the carry * MSB. As a result a single shift is enough to get the carry
*/ */
u = *tmpc >> ((mp_digit)((CHAR_BIT * sizeof(mp_digit)) - 1)); u = *tmpc >> (((size_t)CHAR_BIT * sizeof(mp_digit)) - 1u);
/* Clear carry from T[i] */ /* Clear carry from T[i] */
*tmpc++ &= MP_MASK; *tmpc++ &= MP_MASK;
@ -65,7 +65,7 @@ int s_mp_sub(const mp_int *a, const mp_int *b, mp_int *c)
*tmpc = *tmpa++ - u; *tmpc = *tmpa++ - u;
/* U = carry bit of T[i] */ /* U = carry bit of T[i] */
u = *tmpc >> ((mp_digit)((CHAR_BIT * sizeof(mp_digit)) - 1)); u = *tmpc >> (((size_t)CHAR_BIT * sizeof(mp_digit)) - 1u);
/* Clear carry from T[i] */ /* Clear carry from T[i] */
*tmpc++ &= MP_MASK; *tmpc++ &= MP_MASK;

24
tommath.h
View File

@ -105,7 +105,7 @@ typedef mp_digit mp_min_u32;
/* use arc4random on platforms that support it */ /* use arc4random on platforms that support it */
#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__DragonFly__) #if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__DragonFly__)
# define MP_GEN_RANDOM() arc4random() # define MP_GEN_RANDOM() arc4random()
# define MP_GEN_RANDOM_MAX 0xffffffff # define MP_GEN_RANDOM_MAX 0xffffffffu
#endif #endif
/* use rand() as fall-back if there's no better rand function */ /* use rand() as fall-back if there's no better rand function */
@ -160,7 +160,7 @@ extern int KARATSUBA_MUL_CUTOFF,
#endif #endif
/* size of comba arrays, should be at least 2 * 2**(BITS_PER_WORD - BITS_PER_DIGIT*2) */ /* size of comba arrays, should be at least 2 * 2**(BITS_PER_WORD - BITS_PER_DIGIT*2) */
#define MP_WARRAY (1 << (((sizeof(mp_word) * CHAR_BIT) - (2 * DIGIT_BIT)) + 1)) #define MP_WARRAY (1u << (((sizeof(mp_word) * CHAR_BIT) - (2 * DIGIT_BIT)) + 1))
/* the infamous mp_int structure */ /* the infamous mp_int structure */
typedef struct { typedef struct {
@ -395,7 +395,7 @@ int mp_n_root_ex(const mp_int *a, mp_digit b, mp_int *c, int fast);
int mp_sqrt(const mp_int *arg, mp_int *ret); int mp_sqrt(const mp_int *arg, mp_int *ret);
/* special sqrt (mod prime) */ /* special sqrt (mod prime) */
int mp_sqrtmod_prime(const mp_int *arg, const mp_int *prime, mp_int *ret); int mp_sqrtmod_prime(const mp_int *n, const mp_int *prime, mp_int *ret);
/* is number a square? */ /* is number a square? */
int mp_is_square(const mp_int *arg, int *ret); int mp_is_square(const mp_int *arg, int *ret);
@ -408,13 +408,13 @@ int mp_reduce_setup(mp_int *a, const mp_int *b);
/* Barrett Reduction, computes a (mod b) with a precomputed value c /* Barrett Reduction, computes a (mod b) with a precomputed value c
* *
* Assumes that 0 < a <= b*b, note if 0 > a > -(b*b) then you can merely * Assumes that 0 < x <= m*m, note if 0 > x > -(m*m) then you can merely
* compute the reduction as -1 * mp_reduce(mp_abs(a)) [pseudo code]. * compute the reduction as -1 * mp_reduce(mp_abs(x)) [pseudo code].
*/ */
int mp_reduce(mp_int *a, const mp_int *b, const mp_int *c); int mp_reduce(mp_int *x, const mp_int *m, const mp_int *mu);
/* setups the montgomery reduction */ /* setups the montgomery reduction */
int mp_montgomery_setup(const mp_int *a, mp_digit *mp); int mp_montgomery_setup(const mp_int *n, mp_digit *rho);
/* computes a = B**n mod b without division or multiplication useful for /* computes a = B**n mod b without division or multiplication useful for
* normalizing numbers in a Montgomery system. * normalizing numbers in a Montgomery system.
@ -422,7 +422,7 @@ int mp_montgomery_setup(const mp_int *a, mp_digit *mp);
int mp_montgomery_calc_normalization(mp_int *a, const mp_int *b); int mp_montgomery_calc_normalization(mp_int *a, const mp_int *b);
/* computes x/R == x (mod N) via Montgomery Reduction */ /* computes x/R == x (mod N) via Montgomery Reduction */
int mp_montgomery_reduce(mp_int *a, const mp_int *m, mp_digit mp); int mp_montgomery_reduce(mp_int *x, const mp_int *n, mp_digit rho);
/* returns 1 if a is a valid DR modulus */ /* returns 1 if a is a valid DR modulus */
int mp_dr_is_modulus(const mp_int *a); int mp_dr_is_modulus(const mp_int *a);
@ -430,8 +430,8 @@ int mp_dr_is_modulus(const mp_int *a);
/* sets the value of "d" required for mp_dr_reduce */ /* sets the value of "d" required for mp_dr_reduce */
void mp_dr_setup(const mp_int *a, mp_digit *d); void mp_dr_setup(const mp_int *a, mp_digit *d);
/* reduces a modulo b using the Diminished Radix method */ /* reduces a modulo n using the Diminished Radix method */
int mp_dr_reduce(mp_int *a, const mp_int *b, mp_digit mp); int mp_dr_reduce(mp_int *x, const mp_int *n, mp_digit k);
/* returns true if a can be reduced with mp_reduce_2k */ /* returns true if a can be reduced with mp_reduce_2k */
int mp_reduce_is_2k(const mp_int *a); int mp_reduce_is_2k(const mp_int *a);
@ -451,8 +451,8 @@ int mp_reduce_2k_setup_l(const mp_int *a, mp_int *d);
/* reduces a modulo b where b is of the form 2**p - k [0 <= a] */ /* reduces a modulo b where b is of the form 2**p - k [0 <= a] */
int mp_reduce_2k_l(mp_int *a, const mp_int *n, const mp_int *d); int mp_reduce_2k_l(mp_int *a, const mp_int *n, const mp_int *d);
/* d = a**b (mod c) */ /* Y = G**X (mod P) */
int mp_exptmod(const mp_int *a, const mp_int *b, const mp_int *c, mp_int *d); int mp_exptmod(const mp_int *G, const mp_int *X, const mp_int *P, mp_int *Y);
/* ---> Primes <--- */ /* ---> Primes <--- */

2
tommath_private.h
View File

@ -101,7 +101,7 @@ int func_name (mp_int * a, type b) \
} \ } \
\ \
/* OR in the top four bits of the source */ \ /* OR in the top four bits of the source */ \
a->dp[0] |= (b >> ((sizeof(type) * 8u) - 4u)) & 15u; \ a->dp[0] |= (mp_digit)(b >> ((sizeof(type) * 8u) - 4u)) & 15uL;\
\ \
/* shift the source up to the next four bits */ \ /* shift the source up to the next four bits */ \
b <<= 4; \ b <<= 4; \