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Hakase
2020-01-17 19:45:12 +09:00
parent 016df9f433
commit 0f7abb4eb6
1100 changed files with 47785 additions and 16292 deletions
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crypto/ec/ecx_meth.c
+10 -11
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@@ -854,6 +854,7 @@ static const EVP_PKEY_METHOD ed448_pkey_meth = {
#ifdef S390X_EC_ASM
# include "s390x_arch.h"
# include "internal/constant_time.h"
static void s390x_x25519_mod_p(unsigned char u[32])
{
@@ -867,16 +868,16 @@ static void s390x_x25519_mod_p(unsigned char u[32])
u_red[31] = (unsigned char)c;
c >>= 8;
for (i = 30; c > 0 && i >= 0; i--) {
for (i = 30; i >= 0; i--) {
c += (unsigned int)u_red[i];
u_red[i] = (unsigned char)c;
c >>= 8;
}
if (u_red[0] & 0x80) {
u_red[0] &= 0x7f;
memcpy(u, u_red, sizeof(u_red));
}
c = (u_red[0] & 0x80) >> 7;
u_red[0] &= 0x7f;
constant_time_cond_swap_buff(0 - (unsigned char)c,
u, u_red, sizeof(u_red));
}
static void s390x_x448_mod_p(unsigned char u[56])
@@ -901,16 +902,14 @@ static void s390x_x448_mod_p(unsigned char u[56])
u_red[27] = (unsigned char)c;
c >>= 8;
for (i = 26; c > 0 && i >= 0; i--) {
for (i = 26; i >= 0; i--) {
c += (unsigned int)u_red[i];
u_red[i] = (unsigned char)c;
c >>= 8;
}
if (u_red[0] & 0x80) {
u_red[0] &= 0x7f;
memcpy(u, u_red, sizeof(u_red));
}
constant_time_cond_swap_buff(0 - (unsigned char)c,
u, u_red, sizeof(u_red));
}
static int s390x_x25519_mul(unsigned char u_dst[32],
@@ -966,7 +965,7 @@ static int s390x_x448_mul(unsigned char u_dst[56],
memcpy(param.x448.d_src, d_src, 56);
s390x_flip_endian64(param.x448.u_src, param.x448.u_src);
s390x_x448_mod_p(param.x448.u_src);
s390x_x448_mod_p(param.x448.u_src + 8);
s390x_flip_endian64(param.x448.d_src, param.x448.d_src);
param.x448.d_src[63] &= 252;