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Renamed SHA1 functions, else they might cause trouble with tomcrypt

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This commit is contained in:
WolverinDEV 2019-04-07 16:06:22 +02:00
parent 98bd4f3ec6
commit 824abbf483
8 changed files with 204 additions and 204 deletions
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10
include/fe.h
View File

@ -15,19 +15,19 @@
typedef int32_t fe[10]; typedef int32_t fe[10];
#ifdef __cplusplus
extern "C" {
#endif
void fe_0(fe h); void fe_0(fe h);
void fe_1(fe h); void fe_1(fe h);
void fe_frombytes(fe h, const unsigned char *s); void fe_frombytes(fe h, const unsigned char *s);
void fe_tobytes(unsigned char *s, const fe h); void fe_tobytes(unsigned char *s, const fe h);
void fe_copy(fe h, const fe f); void fe_copy(fe h, const fe f);
int fe_isnegative(const fe f); int fe_isnegative(const fe f);
int fe_isnonzero(const fe f); int fe_isnonzero(const fe f);
void fe_cmov(fe f, const fe g, unsigned int b); void fe_cmov(fe f, const fe g, unsigned int b);
void fe_cswap(fe f, fe g, unsigned int b); void fe_cswap(fe f, fe g, unsigned int b);
void fe_neg(fe h, const fe f); void fe_neg(fe h, const fe f);
void fe_add(fe h, const fe f, const fe g); void fe_add(fe h, const fe f, const fe g);
void fe_invert(fe out, const fe z); void fe_invert(fe out, const fe z);
@ -38,4 +38,8 @@ void fe_mul121666(fe h, fe f);
void fe_pow22523(fe out, const fe z); void fe_pow22523(fe out, const fe z);
void fe_sub(fe h, const fe f, const fe g); void fe_sub(fe h, const fe f, const fe g);
#ifdef __cplusplus
}
#endif
#endif #endif

8
include/sha512.h
View File

@ -17,8 +17,8 @@
unsigned char buf[128]; unsigned char buf[128];
} sha512_context; } sha512_context;
#endif #endif
int sha512_init(sha512_context * md); int _ed_sha512_init(sha512_context * md);
int sha512_final(sha512_context * md, unsigned char *out); int _ed_sha512_final(sha512_context * md, unsigned char *out);
int sha512_update(sha512_context * md, const unsigned char *in, size_t inlen); int _ed_sha512_update(sha512_context * md, const unsigned char *in, size_t inlen);
int sha512(const unsigned char *message, size_t message_len, unsigned char *out); int _ed_sha512(const unsigned char *message, size_t message_len, unsigned char *out);
#endif #endif

8
src/add_scalar.c
View File

@ -31,10 +31,10 @@ void ed25519_add_scalar(unsigned char *public_key, unsigned char *private_key, c
sc_muladd(private_key, SC_1, n, private_key); sc_muladd(private_key, SC_1, n, private_key);
// https://github.com/orlp/ed25519/issues/3 // https://github.com/orlp/ed25519/issues/3
sha512_init(&hash); _ed_sha512_init(&hash);
sha512_update(&hash, private_key + 32, 32); _ed_sha512_update(&hash, private_key + 32, 32);
sha512_update(&hash, scalar, 32); _ed_sha512_update(&hash, scalar, 32);
sha512_final(&hash, hashbuf); _ed_sha512_final(&hash, hashbuf);
for (i = 0; i < 32; ++i) { for (i = 0; i < 32; ++i) {
private_key[32 + i] = hashbuf[i]; private_key[32 + i] = hashbuf[i];
} }

2
src/keypair.c
View File

@ -6,7 +6,7 @@
void ed25519_create_keypair(unsigned char *public_key, unsigned char *private_key, const unsigned char *seed) { void ed25519_create_keypair(unsigned char *public_key, unsigned char *private_key, const unsigned char *seed) {
ge_p3 A; ge_p3 A;
sha512(seed, 32, private_key); _ed_sha512(seed, 32, private_key);
private_key[0] &= 248; private_key[0] &= 248;
private_key[31] &= 63; private_key[31] &= 63;
private_key[31] |= 64; private_key[31] |= 64;

344
src/sha512.c
View File

@ -14,46 +14,46 @@
/* the K array */ /* the K array */
static const uint64_t K[80] = { static const uint64_t K[80] = {
UINT64_C(0x428a2f98d728ae22), UINT64_C(0x7137449123ef65cd), UINT64_C(0x428a2f98d728ae22), UINT64_C(0x7137449123ef65cd),
UINT64_C(0xb5c0fbcfec4d3b2f), UINT64_C(0xe9b5dba58189dbbc), UINT64_C(0xb5c0fbcfec4d3b2f), UINT64_C(0xe9b5dba58189dbbc),
UINT64_C(0x3956c25bf348b538), UINT64_C(0x59f111f1b605d019), UINT64_C(0x3956c25bf348b538), UINT64_C(0x59f111f1b605d019),
UINT64_C(0x923f82a4af194f9b), UINT64_C(0xab1c5ed5da6d8118), UINT64_C(0x923f82a4af194f9b), UINT64_C(0xab1c5ed5da6d8118),
UINT64_C(0xd807aa98a3030242), UINT64_C(0x12835b0145706fbe), UINT64_C(0xd807aa98a3030242), UINT64_C(0x12835b0145706fbe),
UINT64_C(0x243185be4ee4b28c), UINT64_C(0x550c7dc3d5ffb4e2), UINT64_C(0x243185be4ee4b28c), UINT64_C(0x550c7dc3d5ffb4e2),
UINT64_C(0x72be5d74f27b896f), UINT64_C(0x80deb1fe3b1696b1), UINT64_C(0x72be5d74f27b896f), UINT64_C(0x80deb1fe3b1696b1),
UINT64_C(0x9bdc06a725c71235), UINT64_C(0xc19bf174cf692694), UINT64_C(0x9bdc06a725c71235), UINT64_C(0xc19bf174cf692694),
UINT64_C(0xe49b69c19ef14ad2), UINT64_C(0xefbe4786384f25e3), UINT64_C(0xe49b69c19ef14ad2), UINT64_C(0xefbe4786384f25e3),
UINT64_C(0x0fc19dc68b8cd5b5), UINT64_C(0x240ca1cc77ac9c65), UINT64_C(0x0fc19dc68b8cd5b5), UINT64_C(0x240ca1cc77ac9c65),
UINT64_C(0x2de92c6f592b0275), UINT64_C(0x4a7484aa6ea6e483), UINT64_C(0x2de92c6f592b0275), UINT64_C(0x4a7484aa6ea6e483),
UINT64_C(0x5cb0a9dcbd41fbd4), UINT64_C(0x76f988da831153b5), UINT64_C(0x5cb0a9dcbd41fbd4), UINT64_C(0x76f988da831153b5),
UINT64_C(0x983e5152ee66dfab), UINT64_C(0xa831c66d2db43210), UINT64_C(0x983e5152ee66dfab), UINT64_C(0xa831c66d2db43210),
UINT64_C(0xb00327c898fb213f), UINT64_C(0xbf597fc7beef0ee4), UINT64_C(0xb00327c898fb213f), UINT64_C(0xbf597fc7beef0ee4),
UINT64_C(0xc6e00bf33da88fc2), UINT64_C(0xd5a79147930aa725), UINT64_C(0xc6e00bf33da88fc2), UINT64_C(0xd5a79147930aa725),
UINT64_C(0x06ca6351e003826f), UINT64_C(0x142929670a0e6e70), UINT64_C(0x06ca6351e003826f), UINT64_C(0x142929670a0e6e70),
UINT64_C(0x27b70a8546d22ffc), UINT64_C(0x2e1b21385c26c926), UINT64_C(0x27b70a8546d22ffc), UINT64_C(0x2e1b21385c26c926),
UINT64_C(0x4d2c6dfc5ac42aed), UINT64_C(0x53380d139d95b3df), UINT64_C(0x4d2c6dfc5ac42aed), UINT64_C(0x53380d139d95b3df),
UINT64_C(0x650a73548baf63de), UINT64_C(0x766a0abb3c77b2a8), UINT64_C(0x650a73548baf63de), UINT64_C(0x766a0abb3c77b2a8),
UINT64_C(0x81c2c92e47edaee6), UINT64_C(0x92722c851482353b), UINT64_C(0x81c2c92e47edaee6), UINT64_C(0x92722c851482353b),
UINT64_C(0xa2bfe8a14cf10364), UINT64_C(0xa81a664bbc423001), UINT64_C(0xa2bfe8a14cf10364), UINT64_C(0xa81a664bbc423001),
UINT64_C(0xc24b8b70d0f89791), UINT64_C(0xc76c51a30654be30), UINT64_C(0xc24b8b70d0f89791), UINT64_C(0xc76c51a30654be30),
UINT64_C(0xd192e819d6ef5218), UINT64_C(0xd69906245565a910), UINT64_C(0xd192e819d6ef5218), UINT64_C(0xd69906245565a910),
UINT64_C(0xf40e35855771202a), UINT64_C(0x106aa07032bbd1b8), UINT64_C(0xf40e35855771202a), UINT64_C(0x106aa07032bbd1b8),
UINT64_C(0x19a4c116b8d2d0c8), UINT64_C(0x1e376c085141ab53), UINT64_C(0x19a4c116b8d2d0c8), UINT64_C(0x1e376c085141ab53),
UINT64_C(0x2748774cdf8eeb99), UINT64_C(0x34b0bcb5e19b48a8), UINT64_C(0x2748774cdf8eeb99), UINT64_C(0x34b0bcb5e19b48a8),
UINT64_C(0x391c0cb3c5c95a63), UINT64_C(0x4ed8aa4ae3418acb), UINT64_C(0x391c0cb3c5c95a63), UINT64_C(0x4ed8aa4ae3418acb),
UINT64_C(0x5b9cca4f7763e373), UINT64_C(0x682e6ff3d6b2b8a3), UINT64_C(0x5b9cca4f7763e373), UINT64_C(0x682e6ff3d6b2b8a3),
UINT64_C(0x748f82ee5defb2fc), UINT64_C(0x78a5636f43172f60), UINT64_C(0x748f82ee5defb2fc), UINT64_C(0x78a5636f43172f60),
UINT64_C(0x84c87814a1f0ab72), UINT64_C(0x8cc702081a6439ec), UINT64_C(0x84c87814a1f0ab72), UINT64_C(0x8cc702081a6439ec),
UINT64_C(0x90befffa23631e28), UINT64_C(0xa4506cebde82bde9), UINT64_C(0x90befffa23631e28), UINT64_C(0xa4506cebde82bde9),
UINT64_C(0xbef9a3f7b2c67915), UINT64_C(0xc67178f2e372532b), UINT64_C(0xbef9a3f7b2c67915), UINT64_C(0xc67178f2e372532b),
UINT64_C(0xca273eceea26619c), UINT64_C(0xd186b8c721c0c207), UINT64_C(0xca273eceea26619c), UINT64_C(0xd186b8c721c0c207),
UINT64_C(0xeada7dd6cde0eb1e), UINT64_C(0xf57d4f7fee6ed178), UINT64_C(0xeada7dd6cde0eb1e), UINT64_C(0xf57d4f7fee6ed178),
UINT64_C(0x06f067aa72176fba), UINT64_C(0x0a637dc5a2c898a6), UINT64_C(0x06f067aa72176fba), UINT64_C(0x0a637dc5a2c898a6),
UINT64_C(0x113f9804bef90dae), UINT64_C(0x1b710b35131c471b), UINT64_C(0x113f9804bef90dae), UINT64_C(0x1b710b35131c471b),
UINT64_C(0x28db77f523047d84), UINT64_C(0x32caab7b40c72493), UINT64_C(0x28db77f523047d84), UINT64_C(0x32caab7b40c72493),
UINT64_C(0x3c9ebe0a15c9bebc), UINT64_C(0x431d67c49c100d4c), UINT64_C(0x3c9ebe0a15c9bebc), UINT64_C(0x431d67c49c100d4c),
UINT64_C(0x4cc5d4becb3e42b6), UINT64_C(0x597f299cfc657e2a), UINT64_C(0x4cc5d4becb3e42b6), UINT64_C(0x597f299cfc657e2a),
UINT64_C(0x5fcb6fab3ad6faec), UINT64_C(0x6c44198c4a475817) UINT64_C(0x5fcb6fab3ad6faec), UINT64_C(0x6c44198c4a475817)
}; };
/* Various logical functions */ /* Various logical functions */
@ -75,8 +75,8 @@ static const uint64_t K[80] = {
(((uint64_t)((y)[6] & 255))<<8)|(((uint64_t)((y)[7] & 255))); } (((uint64_t)((y)[6] & 255))<<8)|(((uint64_t)((y)[7] & 255))); }
#define Ch(x,y,z) (z ^ (x & (y ^ z))) #define Ch(x, y, z) (z ^ (x & (y ^ z)))
#define Maj(x,y,z) (((x | y) & z) | (x & y)) #define Maj(x, y, z) (((x | y) & z) | (x & y))
#define S(x, n) ROR64c(x, n) #define S(x, n) ROR64c(x, n)
#define R(x, n) (((x) &UINT64_C(0xFFFFFFFFFFFFFFFF))>>((uint64_t)n)) #define R(x, n) (((x) &UINT64_C(0xFFFFFFFFFFFFFFFF))>>((uint64_t)n))
#define Sigma0(x) (S(x, 28) ^ S(x, 34) ^ S(x, 39)) #define Sigma0(x) (S(x, 28) ^ S(x, 34) ^ S(x, 39))
@ -84,58 +84,57 @@ static const uint64_t K[80] = {
#define Gamma0(x) (S(x, 1) ^ S(x, 8) ^ R(x, 7)) #define Gamma0(x) (S(x, 1) ^ S(x, 8) ^ R(x, 7))
#define Gamma1(x) (S(x, 19) ^ S(x, 61) ^ R(x, 6)) #define Gamma1(x) (S(x, 19) ^ S(x, 61) ^ R(x, 6))
#ifndef MIN #ifndef MIN
#define MIN(x, y) ( ((x)<(y))?(x):(y) ) #define MIN(x, y) ( ((x)<(y))?(x):(y) )
#endif #endif
/* compress 1024-bits */ /* compress 1024-bits */
static int sha512_compress(sha512_context *md, unsigned char *buf) static int _ed_sha512_compress(sha512_context *md, unsigned char *buf) {
{ uint64_t S[8], W[80], t0, t1;
uint64_t S[8], W[80], t0, t1; int i;
int i;
/* copy state into S */ /* copy state into S */
for (i = 0; i < 8; i++) { for (i = 0; i < 8; i++) {
S[i] = md->state[i]; S[i] = md->state[i];
} }
/* copy the state into 1024-bits into W[0..15] */ /* copy the state into 1024-bits into W[0..15] */
for (i = 0; i < 16; i++) { for (i = 0; i < 16; i++) {
LOAD64H(W[i], buf + (8*i)); LOAD64H(W[i], buf + (8 * i));
} }
/* fill W[16..79] */ /* fill W[16..79] */
for (i = 16; i < 80; i++) { for (i = 16; i < 80; i++) {
W[i] = Gamma1(W[i - 2]) + W[i - 7] + Gamma0(W[i - 15]) + W[i - 16]; W[i] = Gamma1(W[i - 2]) + W[i - 7] + Gamma0(W[i - 15]) + W[i - 16];
} }
/* Compress */ /* Compress */
#define RND(a,b,c,d,e,f,g,h,i) \ #define RND(a, b, c, d, e, f, g, h, i) \
t0 = h + Sigma1(e) + Ch(e, f, g) + K[i] + W[i]; \ t0 = h + Sigma1(e) + Ch(e, f, g) + K[i] + W[i]; \
t1 = Sigma0(a) + Maj(a, b, c);\ t1 = Sigma0(a) + Maj(a, b, c);\
d += t0; \ d += t0; \
h = t0 + t1; h = t0 + t1;
for (i = 0; i < 80; i += 8) { for (i = 0; i < 80; i += 8) {
RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],i+0); RND(S[0], S[1], S[2], S[3], S[4], S[5], S[6], S[7], i + 0);
RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],i+1); RND(S[7], S[0], S[1], S[2], S[3], S[4], S[5], S[6], i + 1);
RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],i+2); RND(S[6], S[7], S[0], S[1], S[2], S[3], S[4], S[5], i + 2);
RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],i+3); RND(S[5], S[6], S[7], S[0], S[1], S[2], S[3], S[4], i + 3);
RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],i+4); RND(S[4], S[5], S[6], S[7], S[0], S[1], S[2], S[3], i + 4);
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],i+5); RND(S[3], S[4], S[5], S[6], S[7], S[0], S[1], S[2], i + 5);
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],i+6); RND(S[2], S[3], S[4], S[5], S[6], S[7], S[0], S[1], i + 6);
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],i+7); RND(S[1], S[2], S[3], S[4], S[5], S[6], S[7], S[0], i + 7);
} }
#undef RND #undef RND
/* feedback */ /* feedback */
for (i = 0; i < 8; i++) { for (i = 0; i < 8; i++) {
md->state[i] = md->state[i] + S[i]; md->state[i] = md->state[i] + S[i];
} }
return 0; return 0;
} }
@ -144,21 +143,21 @@ static int sha512_compress(sha512_context *md, unsigned char *buf)
@param md The hash state you wish to initialize @param md The hash state you wish to initialize
@return 0 if successful @return 0 if successful
*/ */
int sha512_init(sha512_context * md) { int _ed_sha512_init(sha512_context *md) {
if (md == NULL) return 1; if (md == NULL) return 1;
md->curlen = 0; md->curlen = 0;
md->length = 0; md->length = 0;
md->state[0] = UINT64_C(0x6a09e667f3bcc908); md->state[0] = UINT64_C(0x6a09e667f3bcc908);
md->state[1] = UINT64_C(0xbb67ae8584caa73b); md->state[1] = UINT64_C(0xbb67ae8584caa73b);
md->state[2] = UINT64_C(0x3c6ef372fe94f82b); md->state[2] = UINT64_C(0x3c6ef372fe94f82b);
md->state[3] = UINT64_C(0xa54ff53a5f1d36f1); md->state[3] = UINT64_C(0xa54ff53a5f1d36f1);
md->state[4] = UINT64_C(0x510e527fade682d1); md->state[4] = UINT64_C(0x510e527fade682d1);
md->state[5] = UINT64_C(0x9b05688c2b3e6c1f); md->state[5] = UINT64_C(0x9b05688c2b3e6c1f);
md->state[6] = UINT64_C(0x1f83d9abfb41bd6b); md->state[6] = UINT64_C(0x1f83d9abfb41bd6b);
md->state[7] = UINT64_C(0x5be0cd19137e2179); md->state[7] = UINT64_C(0x5be0cd19137e2179);
return 0; return 0;
} }
/** /**
@ -168,45 +167,44 @@ int sha512_init(sha512_context * md) {
@param inlen The length of the data (octets) @param inlen The length of the data (octets)
@return 0 if successful @return 0 if successful
*/ */
int sha512_update (sha512_context * md, const unsigned char *in, size_t inlen) int _ed_sha512_update(sha512_context *md, const unsigned char *in, size_t inlen) {
{ size_t n;
size_t n; size_t i;
size_t i; int err;
int err; if (md == NULL) return 1;
if (md == NULL) return 1; if (in == NULL) return 1;
if (in == NULL) return 1; if (md->curlen > sizeof(md->buf)) {
if (md->curlen > sizeof(md->buf)) { return 1;
return 1; }
} while (inlen > 0) {
while (inlen > 0) { if (md->curlen == 0 && inlen >= 128) {
if (md->curlen == 0 && inlen >= 128) { if ((err = _ed_sha512_compress(md, (unsigned char *) in)) != 0) {
if ((err = sha512_compress (md, (unsigned char *)in)) != 0) { return err;
return err; }
} md->length += 128 * 8;
md->length += 128 * 8; in += 128;
in += 128; inlen -= 128;
inlen -= 128; } else {
} else { n = MIN(inlen, (128 - md->curlen));
n = MIN(inlen, (128 - md->curlen));
for (i = 0; i < n; i++) { for (i = 0; i < n; i++) {
md->buf[i + md->curlen] = in[i]; md->buf[i + md->curlen] = in[i];
} }
md->curlen += n; md->curlen += n;
in += n; in += n;
inlen -= n; inlen -= n;
if (md->curlen == 128) { if (md->curlen == 128) {
if ((err = sha512_compress (md, md->buf)) != 0) { if ((err = _ed_sha512_compress(md, md->buf)) != 0) {
return err; return err;
} }
md->length += 8*128; md->length += 8 * 128;
md->curlen = 0; md->curlen = 0;
} }
} }
} }
return 0; return 0;
} }
/** /**
@ -215,61 +213,59 @@ int sha512_update (sha512_context * md, const unsigned char *in, size_t inlen)
@param out [out] The destination of the hash (64 bytes) @param out [out] The destination of the hash (64 bytes)
@return 0 if successful @return 0 if successful
*/ */
int sha512_final(sha512_context * md, unsigned char *out) int _ed_sha512_final(sha512_context *md, unsigned char *out) {
{ int i;
int i;
if (md == NULL) return 1; if (md == NULL) return 1;
if (out == NULL) return 1; if (out == NULL) return 1;
if (md->curlen >= sizeof(md->buf)) { if (md->curlen >= sizeof(md->buf)) {
return 1; return 1;
} }
/* increase the length of the message */ /* increase the length of the message */
md->length += md->curlen * UINT64_C(8); md->length += md->curlen * UINT64_C(8);
/* append the '1' bit */ /* append the '1' bit */
md->buf[md->curlen++] = (unsigned char)0x80; md->buf[md->curlen++] = (unsigned char) 0x80;
/* if the length is currently above 112 bytes we append zeros /* if the length is currently above 112 bytes we append zeros
* then compress. Then we can fall back to padding zeros and length * then compress. Then we can fall back to padding zeros and length
* encoding like normal. * encoding like normal.
*/ */
if (md->curlen > 112) { if (md->curlen > 112) {
while (md->curlen < 128) { while (md->curlen < 128) {
md->buf[md->curlen++] = (unsigned char)0; md->buf[md->curlen++] = (unsigned char) 0;
} }
sha512_compress(md, md->buf); _ed_sha512_compress(md, md->buf);
md->curlen = 0; md->curlen = 0;
} }
/* pad upto 120 bytes of zeroes /* pad upto 120 bytes of zeroes
* note: that from 112 to 120 is the 64 MSB of the length. We assume that you won't hash * note: that from 112 to 120 is the 64 MSB of the length. We assume that you won't hash
* > 2^64 bits of data... :-) * > 2^64 bits of data... :-)
*/ */
while (md->curlen < 120) { while (md->curlen < 120) {
md->buf[md->curlen++] = (unsigned char)0; md->buf[md->curlen++] = (unsigned char) 0;
}
/* store length */
STORE64H(md->length, md->buf + 120);
_ed_sha512_compress(md, md->buf);
/* copy output */
for (i = 0; i < 8; i++) {
STORE64H(md->state[i], out + (8 * i));
}
return 0;
} }
/* store length */ int _ed_sha512(const unsigned char *message, size_t message_len, unsigned char *out) {
STORE64H(md->length, md->buf+120); sha512_context ctx;
sha512_compress(md, md->buf); int ret;
if ((ret = _ed_sha512_init(&ctx))) return ret;
/* copy output */ if ((ret = _ed_sha512_update(&ctx, message, message_len))) return ret;
for (i = 0; i < 8; i++) { if ((ret = _ed_sha512_final(&ctx, out))) return ret;
STORE64H(md->state[i], out+(8*i)); return 0;
}
return 0;
}
int sha512(const unsigned char *message, size_t message_len, unsigned char *out)
{
sha512_context ctx;
int ret;
if ((ret = sha512_init(&ctx))) return ret;
if ((ret = sha512_update(&ctx, message, message_len))) return ret;
if ((ret = sha512_final(&ctx, out))) return ret;
return 0;
} }

8
src/sha512_openssl.c
View File

@ -1,18 +1,18 @@
#include <openssl/sha.h> #include <openssl/sha.h>
#include "../include/sha512.h" #include "../include/sha512.h"
int sha512_init(sha512_context * md) { int _ed_sha512_init(sha512_context * md) {
return SHA512_Init(md) != 1; /* Returns 0 on success */ return SHA512_Init(md) != 1; /* Returns 0 on success */
} }
int sha512_final(sha512_context * md, unsigned char *out) { int _ed_sha512_final(sha512_context * md, unsigned char *out) {
return SHA512_Final(out, md) != 1; /* Returns 0 on success */ return SHA512_Final(out, md) != 1; /* Returns 0 on success */
} }
int sha512_update(sha512_context * md, const unsigned char *in, size_t inlen) { int _ed_sha512_update(sha512_context * md, const unsigned char *in, size_t inlen) {
return SHA512_Update(md, in, inlen) != 1; /* Returns 0 on success */ return SHA512_Update(md, in, inlen) != 1; /* Returns 0 on success */
} }
int sha512(const unsigned char *message, size_t message_len, unsigned char *out) { int _ed_sha512(const unsigned char *message, size_t message_len, unsigned char *out) {
return SHA512(message, message_len, out) != 0; /* Returns 0 on success */ return SHA512(message, message_len, out) != 0; /* Returns 0 on success */
} }

18
src/sign.c
View File

@ -11,20 +11,20 @@ void ed25519_sign(unsigned char *signature, const unsigned char *message, size_t
ge_p3 R; ge_p3 R;
sha512_init(&hash); _ed_sha512_init(&hash);
sha512_update(&hash, private_key + 32, 32); _ed_sha512_update(&hash, private_key + 32, 32);
sha512_update(&hash, message, message_len); _ed_sha512_update(&hash, message, message_len);
sha512_final(&hash, r); _ed_sha512_final(&hash, r);
sc_reduce(r); sc_reduce(r);
ge_scalarmult_base(&R, r); ge_scalarmult_base(&R, r);
ge_p3_tobytes(signature, &R); ge_p3_tobytes(signature, &R);
sha512_init(&hash); _ed_sha512_init(&hash);
sha512_update(&hash, signature, 32); _ed_sha512_update(&hash, signature, 32);
sha512_update(&hash, public_key, 32); _ed_sha512_update(&hash, public_key, 32);
sha512_update(&hash, message, message_len); _ed_sha512_update(&hash, message, message_len);
sha512_final(&hash, hram); _ed_sha512_final(&hash, hram);
sc_reduce(hram); sc_reduce(hram);
sc_muladd(signature + 32, hram, private_key, r); sc_muladd(signature + 32, hram, private_key, r);

10
src/verify.c
View File

@ -59,11 +59,11 @@ int ed25519_verify(const unsigned char *signature, const unsigned char *message,
return 0; return 0;
} }
sha512_init(&hash); _ed_sha512_init(&hash);
sha512_update(&hash, signature, 32); _ed_sha512_update(&hash, signature, 32);
sha512_update(&hash, public_key, 32); _ed_sha512_update(&hash, public_key, 32);
sha512_update(&hash, message, message_len); _ed_sha512_update(&hash, message, message_len);
sha512_final(&hash, h); _ed_sha512_final(&hash, h);
sc_reduce(h); sc_reduce(h);
ge_double_scalarmult_vartime(&R, h, &A, signature + 32); ge_double_scalarmult_vartime(&R, h, &A, signature + 32);