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Code Issues Releases Wiki Activity

remove duplicite curve25519 scalarmult implementations

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This commit is contained in:
Pavol Rusnak 2017-03-28 23:05:59 +02:00
parent 1d232a6f86
commit fdf1b6dc6d
No known key found for this signature in database
GPG Key ID: 91F3B339B9A02A3D
4 changed files with 8 additions and 20 deletions
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4
bip32.c
View File

@ -406,7 +406,7 @@ void hdnode_fill_public_key(HDNode *node)
ed25519_publickey(node->private_key, node->public_key + 1);
} else if (node->curve == &curve25519_info) {
node->public_key[0] = 1;
curve25519_donna_basepoint(node->public_key + 1, node->private_key);
curve25519_scalarmult_basepoint(node->public_key + 1, node->private_key);
} else {
ecdsa_get_public_key33(node->curve->params, node->private_key, node->public_key);
}
@ -472,7 +472,7 @@ int hdnode_get_shared_key(const HDNode *node, const uint8_t *peer_public_key, ui
if (peer_public_key[0] != 0x40) {
return 1; // Curve25519 public key should start with 0x40 byte.
}
curve25519_donna(session_key + 1, node->private_key, peer_public_key + 1);
curve25519_scalarmult(session_key + 1, node->private_key, peer_public_key + 1);
*result_size = 33;
return 0;
} else {

12
ed25519-donna/ed25519.c
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@ -108,8 +108,8 @@ ed25519_sign_open(const unsigned char *m, size_t mlen, const ed25519_public_key
Fast Curve25519 basepoint scalar multiplication
*/
void
curved25519_scalarmult_basepoint(curved25519_key pk, const curved25519_key e) {
curved25519_key ec;
curve25519_scalarmult_basepoint(curve25519_key pk, const curve25519_key e) {
curve25519_key ec;
bignum256modm s;
bignum25519 ALIGN(16) yplusz, zminusy;
ge25519 ALIGN(16) p;
@ -135,7 +135,7 @@ curved25519_scalarmult_basepoint(curved25519_key pk, const curved25519_key e) {
}
void
curve25519_donna(curve25519_key mypublic, const curve25519_key secret, const curve25519_key basepoint) {
curve25519_scalarmult(curve25519_key mypublic, const curve25519_key secret, const curve25519_key basepoint) {
curve25519_key e;
size_t i;
@ -145,9 +145,3 @@ curve25519_donna(curve25519_key mypublic, const curve25519_key secret, const cur
e[31] |= 0x40;
curve25519_scalarmult_donna(mypublic, e, basepoint);
}
void
curve25519_donna_basepoint(curve25519_key mypublic, const curve25519_key secret) {
static const curve25519_key basepoint = {9};
curve25519_donna(mypublic, secret, basepoint);
}

10
ed25519-donna/ed25519.h
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@ -11,18 +11,12 @@ typedef unsigned char ed25519_secret_key[32];
typedef unsigned char curve25519_key[32];
typedef unsigned char curved25519_key[32];
void ed25519_publickey(const ed25519_secret_key sk, ed25519_public_key pk);
int ed25519_sign_open(const unsigned char *m, size_t mlen, const ed25519_public_key pk, const ed25519_signature RS);
void ed25519_sign(const unsigned char *m, size_t mlen, const ed25519_secret_key sk, const ed25519_public_key pk, ed25519_signature RS);
int ed25519_sign_open_batch(const unsigned char **m, size_t *mlen, const unsigned char **pk, const unsigned char **RS, size_t num, int *valid);
void curved25519_scalarmult_basepoint(curved25519_key pk, const curved25519_key e);
void curve25519_donna(curve25519_key mypublic, const curve25519_key secret, const curve25519_key basepoint);
void curve25519_donna_basepoint(curve25519_key mypublic, const curve25519_key secret);
void curve25519_scalarmult(curve25519_key mypublic, const curve25519_key secret, const curve25519_key basepoint);
void curve25519_scalarmult_basepoint(curve25519_key mypublic, const curve25519_key secret);
#if defined(__cplusplus)
}

2
test_speed.c
View File

@ -91,7 +91,7 @@ void bench_curve25519(void)
clock_t t = clock();
for (int i = 0 ; i < 500; i++) {
curve25519_donna(result, secret, basepoint);
curve25519_scalarmult(result, secret, basepoint);
}
printf("Curve25519 multiplying speed: %0.2f mul/s\n", 500.0f / ((float)(clock() - t) / CLOCKS_PER_SEC));
}