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Code cleanup

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This commit is contained in:
Matthias Schiffer 2012-03-14 06:37:19 +01:00
parent 50019f858f
commit a3345c7d5b
1 changed files with 16 additions and 13 deletions
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29
src/ec25519.c
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@ -72,11 +72,14 @@ static void squeeze(unsigned int a[32]) {
u += a[31]; a[31] = u;
}
static const unsigned int minusp[32] = {
19, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 128
};
static void freeze(unsigned int a[32]) {
static const unsigned int minusp[32] = {
19, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 128
};
unsigned int aorig[32];
unsigned int j;
unsigned int negative;
@ -186,15 +189,6 @@ static void select(unsigned int out[32], const unsigned int r[32], const unsigne
}
}
static const unsigned int rho_s[32] = {
0xb0, 0xa0, 0x0e, 0x4a, 0x27, 0x1b, 0xee, 0xc4,
0x78, 0xe4, 0x2f, 0xad, 0x06, 0x18, 0x43, 0x2f,
0xa7, 0xd7, 0xfb, 0x3d, 0x99, 0x00, 0x4d, 0x2b,
0x0b, 0xdf, 0xc1, 0x4f, 0x80, 0x24, 0x83, 0x2b
};
static const unsigned int zero[32] = {0};
static void square_root(unsigned int out[32], const unsigned int z[32]) {
static const unsigned int minus1[32] = {
0xec, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
@ -203,6 +197,13 @@ static void square_root(unsigned int out[32], const unsigned int z[32]) {
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f
};
static const unsigned int rho_s[32] = {
0xb0, 0xa0, 0x0e, 0x4a, 0x27, 0x1b, 0xee, 0xc4,
0x78, 0xe4, 0x2f, 0xad, 0x06, 0x18, 0x43, 0x2f,
0xa7, 0xd7, 0xfb, 0x3d, 0x99, 0x00, 0x4d, 0x2b,
0x0b, 0xdf, 0xc1, 0x4f, 0x80, 0x24, 0x83, 0x2b
};
/* raise z to power (2^252-2), check if power (2^253-5) equals -1 */
unsigned int z2[32];
@ -344,6 +345,8 @@ static void recip(unsigned int out[32], const unsigned int z[32]) {
}
void ecc_25519_load(ecc_25519_work *out, const ecc_public_key_256 *in) {
static const unsigned int zero[32] = {0};
int i;
unsigned int X2[32], _1_a_X2[32], d_X2_a_X2[32], Y[32], Yt[32];
unsigned int d_X2[32] = {0x04, 0x6d, 0x07} /* 486660 */, a_X2[32] = {0x08, 0x6d, 0x07} /* 486664 */;