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Refactor uECC_make_key to use uECC_compute_public_key.

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This commit is contained in:
Richard Moore
2015-05-20 12:13:18 -04:00
parent ae3e858136
commit d360398681
1 changed files with 9 additions and 19 deletions
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uECC.c
+9 -19
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@@ -1789,36 +1789,26 @@ static void vli_bytesToNative(uint64_t *p_native, const uint8_t *p_bytes)
int uECC_make_key(uint8_t p_publicKey[uECC_BYTES*2], uint8_t p_privateKey[uECC_BYTES])
{
EccPoint l_public;
uECC_word_t l_private[uECC_WORDS];
uECC_word_t l_tries = 0;
do
while (1)
{
repeat:
if(!g_rng((uint8_t *)l_private, sizeof(l_private)) || (l_tries++ >= MAX_TRIES))
{
return 0;
}
if(vli_isZero(l_private))
{
goto repeat;
continue;
}
/* Make sure the private key is in the range [1, n-1]. */
#if uECC_CURVE != uECC_secp160r1
if(vli_cmp(curve_n, l_private) != 1)
{
goto repeat;
}
#endif
EccPoint_mult(&l_public, &curve_G, l_private, 0, vli_numBits(l_private, uECC_WORDS));
} while(EccPoint_isZero(&l_public));
vli_nativeToBytes(p_privateKey, l_private);
vli_nativeToBytes(p_publicKey, l_public.x);
vli_nativeToBytes(p_publicKey + uECC_BYTES, l_public.y);
vli_nativeToBytes(p_privateKey, l_private);
if (uECC_compute_public_key(p_privateKey, p_publicKey)) {
break;
}
}
return 1;
}