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propagate aes32esi-using setkey to ctr/gcm

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This commit is contained in:
Romain Dolbeau 2021-02-17 02:43:35 -05:00
parent 5e536f3f75
commit c44b27bdb0
2 changed files with 151 additions and 3 deletions
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76
aes256ctrstandalone-rv32/riscv32.c
View file

@ -18,6 +18,80 @@
#include "new_instructions_support_k.h"
static inline void aes256_Tsetkey_encrypt(const unsigned int key[], unsigned int *aes_edrk) {
unsigned int i = 0;
unsigned int rotl_aes_edrk;
unsigned int tmp8, tmp9, tmp10, tmp11;
unsigned int tmp12, tmp13, tmp14, tmp15;
unsigned int temp_lds;
unsigned int round = 0x00000001;
tmp8 = (key[0]);
aes_edrk[0] = tmp8;
tmp9 = (key[1]);
aes_edrk[1] = tmp9;
tmp10 = (key[2]);
aes_edrk[2] = tmp10;
tmp11 = (key[3]);
aes_edrk[3] = tmp11;
tmp12 = (key[4]);
aes_edrk[4] = tmp12;
tmp13 = (key[5]);
aes_edrk[5] = tmp13;
tmp14 = (key[6]);
aes_edrk[6] = tmp14;
tmp15 = (key[7]);
aes_edrk[7] = tmp15;
for( i = 8; i < 56; /* i+=8 */ )
{
tmp8 = tmp8 ^ round;
round = round << 1;
rotl_aes_edrk = rotr(tmp15,8);
tmp8 = aes32esi0(tmp8, rotl_aes_edrk);
tmp8 = aes32esi1(tmp8, rotl_aes_edrk);
tmp8 = aes32esi2(tmp8, rotl_aes_edrk);
tmp8 = aes32esi3(tmp8, rotl_aes_edrk);
aes_edrk[i++] = tmp8;
tmp9 = tmp9 ^ tmp8;
aes_edrk[i++] = tmp9;
tmp10 = tmp10 ^ tmp9;
aes_edrk[i++] = tmp10;
tmp11 = tmp11 ^ tmp10;
aes_edrk[i++] = tmp11;
tmp12 = aes32esi0(tmp12, tmp11);
tmp12 = aes32esi1(tmp12, tmp11);
tmp12 = aes32esi2(tmp12, tmp11);
tmp12 = aes32esi3(tmp12, tmp11);
aes_edrk[i++] = tmp12;
tmp13 = tmp13 ^ tmp12;
aes_edrk[i++] = tmp13;
tmp14 = tmp14 ^ tmp13;
aes_edrk[i++] = tmp14;
tmp15 = tmp15 ^ tmp14;
aes_edrk[i++] = tmp15;
}
tmp8 = tmp8 ^ round;
round = round << 1;
rotl_aes_edrk = rotr(tmp15,8);
tmp8 = aes32esi0(tmp8, rotl_aes_edrk);
tmp8 = aes32esi1(tmp8, rotl_aes_edrk);
tmp8 = aes32esi2(tmp8, rotl_aes_edrk);
tmp8 = aes32esi3(tmp8, rotl_aes_edrk);
aes_edrk[i++] = tmp8;
tmp9 = tmp9 ^ tmp8;
aes_edrk[i++] = tmp9;
tmp10 = tmp10 ^ tmp9;
aes_edrk[i++] = tmp10;
tmp11 = tmp11 ^ tmp10;
aes_edrk[i++] = tmp11;
}
#define AES_ROUND1T(TAB,I,X0,X1,X2,X3,Y0,Y1,Y2,Y3) \
{ \
X0 = aes32esmi0(TAB[I++],Y0); \
@ -252,7 +326,7 @@ const uint8_t *k
uint32_t rkeys[64];
uint64_t n2[2];
uint64_t i, j;
aes256_setkey_encrypt(k, rkeys);
aes256_Tsetkey_encrypt(k, rkeys);
/* n2 is in byte-reversed (i.e., native little endian)
order to make increment/testing easier */
n2[1] = _bswap64((*(uint64_t*)&n[8]));

78
aes256gcmv1standalone-rv32/encrypt.c
View file

@ -10,6 +10,80 @@
#include "new_instructions_support_k.h"
static inline void aes256_Tsetkey_encrypt(const unsigned int key[], unsigned int *aes_edrk) {
unsigned int i = 0;
unsigned int rotl_aes_edrk;
unsigned int tmp8, tmp9, tmp10, tmp11;
unsigned int tmp12, tmp13, tmp14, tmp15;
unsigned int temp_lds;
unsigned int round = 0x00000001;
tmp8 = (key[0]);
aes_edrk[0] = tmp8;
tmp9 = (key[1]);
aes_edrk[1] = tmp9;
tmp10 = (key[2]);
aes_edrk[2] = tmp10;
tmp11 = (key[3]);
aes_edrk[3] = tmp11;
tmp12 = (key[4]);
aes_edrk[4] = tmp12;
tmp13 = (key[5]);
aes_edrk[5] = tmp13;
tmp14 = (key[6]);
aes_edrk[6] = tmp14;
tmp15 = (key[7]);
aes_edrk[7] = tmp15;
for( i = 8; i < 56; /* i+=8 */ )
{
tmp8 = tmp8 ^ round;
round = round << 1;
rotl_aes_edrk = rotr(tmp15,8);
tmp8 = aes32esi0(tmp8, rotl_aes_edrk);
tmp8 = aes32esi1(tmp8, rotl_aes_edrk);
tmp8 = aes32esi2(tmp8, rotl_aes_edrk);
tmp8 = aes32esi3(tmp8, rotl_aes_edrk);
aes_edrk[i++] = tmp8;
tmp9 = tmp9 ^ tmp8;
aes_edrk[i++] = tmp9;
tmp10 = tmp10 ^ tmp9;
aes_edrk[i++] = tmp10;
tmp11 = tmp11 ^ tmp10;
aes_edrk[i++] = tmp11;
tmp12 = aes32esi0(tmp12, tmp11);
tmp12 = aes32esi1(tmp12, tmp11);
tmp12 = aes32esi2(tmp12, tmp11);
tmp12 = aes32esi3(tmp12, tmp11);
aes_edrk[i++] = tmp12;
tmp13 = tmp13 ^ tmp12;
aes_edrk[i++] = tmp13;
tmp14 = tmp14 ^ tmp13;
aes_edrk[i++] = tmp14;
tmp15 = tmp15 ^ tmp14;
aes_edrk[i++] = tmp15;
}
tmp8 = tmp8 ^ round;
round = round << 1;
rotl_aes_edrk = rotr(tmp15,8);
tmp8 = aes32esi0(tmp8, rotl_aes_edrk);
tmp8 = aes32esi1(tmp8, rotl_aes_edrk);
tmp8 = aes32esi2(tmp8, rotl_aes_edrk);
tmp8 = aes32esi3(tmp8, rotl_aes_edrk);
aes_edrk[i++] = tmp8;
tmp9 = tmp9 ^ tmp8;
aes_edrk[i++] = tmp9;
tmp10 = tmp10 ^ tmp9;
aes_edrk[i++] = tmp10;
tmp11 = tmp11 ^ tmp10;
aes_edrk[i++] = tmp11;
}
#define AES_ROUND1T(TAB,I,X0,X1,X2,X3,Y0,Y1,Y2,Y3) \
{ \
X0 = aes32esmi0(TAB[I++],Y0); \
@ -443,7 +517,7 @@ int crypto_aead_encrypt(
unsigned char T[16];
unsigned char accum[16];
unsigned char fb[16];
aes256_setkey_encrypt(k, rkeys);
aes256_Tsetkey_encrypt(k, rkeys);
for (i = 0;i < 12;i++) n2[i] = npub[i];
for (i = 12; i < 16;i++) n2[i] = 0;
memset(accum, 0, 16);
@ -522,7 +596,7 @@ int crypto_aead_decrypt(
unsigned char T[16];
unsigned char accum[16];
unsigned char fb[16];
aes256_setkey_encrypt(k, rkeys);
aes256_Tsetkey_encrypt(k, rkeys);
for (i = 0;i < 12;i++) n2[i] = npub[i];
for (i = 12; i < 16;i++) n2[i] = 0;
memset(accum, 0, 16);