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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
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@ -15,19 +15,19 @@
typedef int32_t fe[10];
#ifdef __cplusplus
extern "C" {
#endif
void fe_0(fe h);
void fe_1(fe h);
void fe_frombytes(fe h, const unsigned char *s);
void fe_tobytes(unsigned char *s, const fe h);
void fe_copy(fe h, const fe f);
int fe_isnegative(const fe f);
int fe_isnonzero(const fe f);
void fe_cmov(fe f, const 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_add(fe h, const fe f, const fe g);
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_sub(fe h, const fe f, const fe g);
#ifdef __cplusplus
}
#endif
#endif

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

8
src/add_scalar.c
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@ -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);
// https://github.com/orlp/ed25519/issues/3
sha512_init(&hash);
sha512_update(&hash, private_key + 32, 32);
sha512_update(&hash, scalar, 32);
sha512_final(&hash, hashbuf);
_ed_sha512_init(&hash);
_ed_sha512_update(&hash, private_key + 32, 32);
_ed_sha512_update(&hash, scalar, 32);
_ed_sha512_final(&hash, hashbuf);
for (i = 0; i < 32; ++i) {
private_key[32 + i] = hashbuf[i];
}

2
src/keypair.c
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@ -6,7 +6,7 @@
void ed25519_create_keypair(unsigned char *public_key, unsigned char *private_key, const unsigned char *seed) {
ge_p3 A;
sha512(seed, 32, private_key);
_ed_sha512(seed, 32, private_key);
private_key[0] &= 248;
private_key[31] &= 63;
private_key[31] |= 64;

82
src/sha512.c
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@ -75,8 +75,8 @@ static const uint64_t K[80] = {
(((uint64_t)((y)[6] & 255))<<8)|(((uint64_t)((y)[7] & 255))); }
#define Ch(x,y,z) (z ^ (x & (y ^ z)))
#define Maj(x,y,z) (((x | y) & z) | (x & y))
#define Ch(x, y, z) (z ^ (x & (y ^ z)))
#define Maj(x, y, z) (((x | y) & z) | (x & y))
#define S(x, n) ROR64c(x, n)
#define R(x, n) (((x) &UINT64_C(0xFFFFFFFFFFFFFFFF))>>((uint64_t)n))
#define Sigma0(x) (S(x, 28) ^ S(x, 34) ^ S(x, 39))
@ -88,8 +88,7 @@ static const uint64_t K[80] = {
#endif
/* 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;
int i;
@ -100,7 +99,7 @@ static int sha512_compress(sha512_context *md, unsigned char *buf)
/* copy the state into 1024-bits into W[0..15] */
for (i = 0; i < 16; i++) {
LOAD64H(W[i], buf + (8*i));
LOAD64H(W[i], buf + (8 * i));
}
/* fill W[16..79] */
@ -109,21 +108,21 @@ static int sha512_compress(sha512_context *md, unsigned char *buf)
}
/* 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]; \
t1 = Sigma0(a) + Maj(a, b, c);\
d += t0; \
h = t0 + t1;
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[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[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[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[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],i+7);
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[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[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[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);
}
#undef RND
@ -144,7 +143,7 @@ static int sha512_compress(sha512_context *md, unsigned char *buf)
@param md The hash state you wish to initialize
@return 0 if successful
*/
int sha512_init(sha512_context * md) {
int _ed_sha512_init(sha512_context *md) {
if (md == NULL) return 1;
md->curlen = 0;
@ -168,8 +167,7 @@ int sha512_init(sha512_context * md) {
@param inlen The length of the data (octets)
@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 i;
int err;
@ -180,7 +178,7 @@ int sha512_update (sha512_context * md, const unsigned char *in, size_t inlen)
}
while (inlen > 0) {
if (md->curlen == 0 && inlen >= 128) {
if ((err = sha512_compress (md, (unsigned char *)in)) != 0) {
if ((err = _ed_sha512_compress(md, (unsigned char *) in)) != 0) {
return err;
}
md->length += 128 * 8;
@ -198,10 +196,10 @@ int sha512_update (sha512_context * md, const unsigned char *in, size_t inlen)
in += n;
inlen -= n;
if (md->curlen == 128) {
if ((err = sha512_compress (md, md->buf)) != 0) {
if ((err = _ed_sha512_compress(md, md->buf)) != 0) {
return err;
}
md->length += 8*128;
md->length += 8 * 128;
md->curlen = 0;
}
}
@ -215,8 +213,7 @@ int sha512_update (sha512_context * md, const unsigned char *in, size_t inlen)
@param out [out] The destination of the hash (64 bytes)
@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;
if (md == NULL) return 1;
@ -230,7 +227,7 @@ int sha512_update (sha512_context * md, const unsigned char *in, size_t inlen)
md->length += md->curlen * UINT64_C(8);
/* 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
* then compress. Then we can fall back to padding zeros and length
@ -238,9 +235,9 @@ int sha512_update (sha512_context * md, const unsigned char *in, size_t inlen)
*/
if (md->curlen > 112) {
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;
}
@ -248,28 +245,27 @@ int sha512_update (sha512_context * md, const unsigned char *in, size_t inlen)
* 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... :-)
*/
while (md->curlen < 120) {
md->buf[md->curlen++] = (unsigned char)0;
}
while (md->curlen < 120) {
md->buf[md->curlen++] = (unsigned char) 0;
}
/* store length */
STORE64H(md->length, md->buf+120);
sha512_compress(md, md->buf);
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));
}
for (i = 0; i < 8; i++) {
STORE64H(md->state[i], out + (8 * i));
}
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;
}
int _ed_sha512(const unsigned char *message, size_t message_len, unsigned char *out) {
sha512_context ctx;
int ret;
if ((ret = _ed_sha512_init(&ctx))) return ret;
if ((ret = _ed_sha512_update(&ctx, message, message_len))) return ret;
if ((ret = _ed_sha512_final(&ctx, out))) return ret;
return 0;
}

8
src/sha512_openssl.c
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@ -1,18 +1,18 @@
#include <openssl/sha.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 */
}
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 */
}
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 */
}
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 */
}

18
src/sign.c
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@ -11,20 +11,20 @@ void ed25519_sign(unsigned char *signature, const unsigned char *message, size_t
ge_p3 R;
sha512_init(&hash);
sha512_update(&hash, private_key + 32, 32);
sha512_update(&hash, message, message_len);
sha512_final(&hash, r);
_ed_sha512_init(&hash);
_ed_sha512_update(&hash, private_key + 32, 32);
_ed_sha512_update(&hash, message, message_len);
_ed_sha512_final(&hash, r);
sc_reduce(r);
ge_scalarmult_base(&R, r);
ge_p3_tobytes(signature, &R);
sha512_init(&hash);
sha512_update(&hash, signature, 32);
sha512_update(&hash, public_key, 32);
sha512_update(&hash, message, message_len);
sha512_final(&hash, hram);
_ed_sha512_init(&hash);
_ed_sha512_update(&hash, signature, 32);
_ed_sha512_update(&hash, public_key, 32);
_ed_sha512_update(&hash, message, message_len);
_ed_sha512_final(&hash, hram);
sc_reduce(hram);
sc_muladd(signature + 32, hram, private_key, r);

10
src/verify.c
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@ -59,11 +59,11 @@ int ed25519_verify(const unsigned char *signature, const unsigned char *message,
return 0;
}
sha512_init(&hash);
sha512_update(&hash, signature, 32);
sha512_update(&hash, public_key, 32);
sha512_update(&hash, message, message_len);
sha512_final(&hash, h);
_ed_sha512_init(&hash);
_ed_sha512_update(&hash, signature, 32);
_ed_sha512_update(&hash, public_key, 32);
_ed_sha512_update(&hash, message, message_len);
_ed_sha512_final(&hash, h);
sc_reduce(h);
ge_double_scalarmult_vartime(&R, h, &A, signature + 32);