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TOSWeb/Tls/Aes256.HC
T
Alec Murphy 06db8badf0 Add TLS v1.2 library and dependencies from Erythros
2022-05-18 21:31:17 -04:00

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14 KiB
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DISABLE_STDOUT;
class AES_ctx {
U8 RoundKey[240];
U8 Iv[16];
};
class AES_state {
U8 t[4][4];
};
U8 sbox[256] = {
0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, 0x30, 0x01, 0x67, 0x2b,
0xfe, 0xd7, 0xab, 0x76, 0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0,
0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0, 0xb7, 0xfd, 0x93, 0x26,
0x36, 0x3f, 0xf7, 0xcc, 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15,
0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a, 0x07, 0x12, 0x80, 0xe2,
0xeb, 0x27, 0xb2, 0x75, 0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0,
0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84, 0x53, 0xd1, 0x00, 0xed,
0x20, 0xfc, 0xb1, 0x5b, 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf,
0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85, 0x45, 0xf9, 0x02, 0x7f,
0x50, 0x3c, 0x9f, 0xa8, 0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5,
0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2, 0xcd, 0x0c, 0x13, 0xec,
0x5f, 0x97, 0x44, 0x17, 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73,
0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88, 0x46, 0xee, 0xb8, 0x14,
0xde, 0x5e, 0x0b, 0xdb, 0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c,
0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79, 0xe7, 0xc8, 0x37, 0x6d,
0x8d, 0xd5, 0x4e, 0xa9, 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08,
0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6, 0xe8, 0xdd, 0x74, 0x1f,
0x4b, 0xbd, 0x8b, 0x8a, 0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e,
0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e, 0xe1, 0xf8, 0x98, 0x11,
0x69, 0xd9, 0x8e, 0x94, 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf,
0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, 0x41, 0x99, 0x2d, 0x0f,
0xb0, 0x54, 0xbb, 0x16};
U8 rsbox[256] = {
0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38, 0xbf, 0x40, 0xa3, 0x9e,
0x81, 0xf3, 0xd7, 0xfb, 0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87,
0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb, 0x54, 0x7b, 0x94, 0x32,
0xa6, 0xc2, 0x23, 0x3d, 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e,
0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2, 0x76, 0x5b, 0xa2, 0x49,
0x6d, 0x8b, 0xd1, 0x25, 0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16,
0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92, 0x6c, 0x70, 0x48, 0x50,
0xfd, 0xed, 0xb9, 0xda, 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84,
0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a, 0xf7, 0xe4, 0x58, 0x05,
0xb8, 0xb3, 0x45, 0x06, 0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02,
0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b, 0x3a, 0x91, 0x11, 0x41,
0x4f, 0x67, 0xdc, 0xea, 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73,
0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85, 0xe2, 0xf9, 0x37, 0xe8,
0x1c, 0x75, 0xdf, 0x6e, 0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89,
0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b, 0xfc, 0x56, 0x3e, 0x4b,
0xc6, 0xd2, 0x79, 0x20, 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4,
0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31, 0xb1, 0x12, 0x10, 0x59,
0x27, 0x80, 0xec, 0x5f, 0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d,
0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef, 0xa0, 0xe0, 0x3b, 0x4d,
0xae, 0x2a, 0xf5, 0xb0, 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61,
0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26, 0xe1, 0x69, 0x14, 0x63,
0x55, 0x21, 0x0c, 0x7d};
U8 Rcon[11] = {0x8d, 0x01, 0x02, 0x04, 0x08, 0x10,
0x20, 0x40, 0x80, 0x1b, 0x36};
U0 KeyExpansion(U8 *RoundKey, U8 *Key) {
U32 i, j, k;
U8 tempa[4];
for (i = 0; i < 8; ++i) {
RoundKey[(i * 4) + 0] = Key[(i * 4) + 0];
RoundKey[(i * 4) + 1] = Key[(i * 4) + 1];
RoundKey[(i * 4) + 2] = Key[(i * 4) + 2];
RoundKey[(i * 4) + 3] = Key[(i * 4) + 3];
}
for (i = 8; i < 4 * (14 + 1); ++i) {
{
k = (i - 1) * 4;
tempa[0] = RoundKey[k + 0];
tempa[1] = RoundKey[k + 1];
tempa[2] = RoundKey[k + 2];
tempa[3] = RoundKey[k + 3];
}
if (i % 8 == 0) {
{
U8 u8tmp = tempa[0];
tempa[0] = tempa[1];
tempa[1] = tempa[2];
tempa[2] = tempa[3];
tempa[3] = u8tmp;
}
{
tempa[0] = (sbox[(tempa[0])]);
tempa[1] = (sbox[(tempa[1])]);
tempa[2] = (sbox[(tempa[2])]);
tempa[3] = (sbox[(tempa[3])]);
}
tempa[0] = tempa[0] ^ Rcon[i / 8];
}
if (i % 8 == 4) {
{
tempa[0] = (sbox[(tempa[0])]);
tempa[1] = (sbox[(tempa[1])]);
tempa[2] = (sbox[(tempa[2])]);
tempa[3] = (sbox[(tempa[3])]);
}
}
j = i * 4;
k = (i - 8) * 4;
RoundKey[j + 0] = RoundKey[k + 0] ^ tempa[0];
RoundKey[j + 1] = RoundKey[k + 1] ^ tempa[1];
RoundKey[j + 2] = RoundKey[k + 2] ^ tempa[2];
RoundKey[j + 3] = RoundKey[k + 3] ^ tempa[3];
}
}
U0 AES_init_ctx(AES_ctx *ctx, U8 *key) { KeyExpansion(ctx->RoundKey, key); }
U0 AES_init_ctx_iv(AES_ctx *ctx, U8 *key, U8 *iv) {
KeyExpansion(ctx->RoundKey, key);
MemCpy(ctx->Iv, iv, 16);
}
U0 AES_ctx_set_iv(AES_ctx *ctx, U8 *iv) { MemCpy(ctx->Iv, iv, 16); }
U0 AddRoundKey(U8 round, AES_state *AES_state, U8 *RoundKey) {
U8 i, j;
for (i = 0; i < 4; ++i) {
for (j = 0; j < 4; ++j) {
AES_state->t[i][j] ^= RoundKey[(round * 4 * 4) + (i * 4) + j];
}
}
}
U0 SubBytes(AES_state *AES_state) {
U8 i, j;
for (i = 0; i < 4; ++i) {
for (j = 0; j < 4; ++j) {
AES_state->t[j][i] = (sbox[(AES_state->t[j][i])]);
}
}
}
U0 ShiftRows(AES_state *AES_state) {
U8 temp;
temp = AES_state->t[0][1];
AES_state->t[0][1] = AES_state->t[1][1];
AES_state->t[1][1] = AES_state->t[2][1];
AES_state->t[2][1] = AES_state->t[3][1];
AES_state->t[3][1] = temp;
temp = AES_state->t[0][2];
AES_state->t[0][2] = AES_state->t[2][2];
AES_state->t[2][2] = temp;
temp = AES_state->t[1][2];
AES_state->t[1][2] = AES_state->t[3][2];
AES_state->t[3][2] = temp;
temp = AES_state->t[0][3];
AES_state->t[0][3] = AES_state->t[3][3];
AES_state->t[3][3] = AES_state->t[2][3];
AES_state->t[2][3] = AES_state->t[1][3];
AES_state->t[1][3] = temp;
}
U8 xtime(U8 x) { return ((x << 1) ^ (((x >> 7) & 1) * 0x1b)); }
U0 MixColumns(AES_state *AES_state) {
U8 i;
U8 Tmp, Tm, t;
for (i = 0; i < 4; ++i) {
t = AES_state->t[i][0];
Tmp = AES_state->t[i][0] ^ AES_state->t[i][1] ^ AES_state->t[i][2] ^
AES_state->t[i][3];
Tm = AES_state->t[i][0] ^ AES_state->t[i][1];
Tm = xtime(Tm);
AES_state->t[i][0] ^= Tm ^ Tmp;
Tm = AES_state->t[i][1] ^ AES_state->t[i][2];
Tm = xtime(Tm);
AES_state->t[i][1] ^= Tm ^ Tmp;
Tm = AES_state->t[i][2] ^ AES_state->t[i][3];
Tm = xtime(Tm);
AES_state->t[i][2] ^= Tm ^ Tmp;
Tm = AES_state->t[i][3] ^ t;
Tm = xtime(Tm);
AES_state->t[i][3] ^= Tm ^ Tmp;
}
}
U0 InvMixColumns(AES_state *AES_state) {
I32 i;
U8 a, b, c, d;
for (i = 0; i < 4; ++i) {
a = AES_state->t[i][0];
b = AES_state->t[i][1];
c = AES_state->t[i][2];
d = AES_state->t[i][3];
AES_state->t[i][0] = (((0x0e & 1) * a) ^ ((0x0e >> 1 & 1) * xtime(a)) ^
((0x0e >> 2 & 1) * xtime(xtime(a))) ^
((0x0e >> 3 & 1) * xtime(xtime(xtime(a)))) ^
((0x0e >> 4 & 1) * xtime(xtime(xtime(xtime(a)))))) ^
(((0x0b & 1) * b) ^ ((0x0b >> 1 & 1) * xtime(b)) ^
((0x0b >> 2 & 1) * xtime(xtime(b))) ^
((0x0b >> 3 & 1) * xtime(xtime(xtime(b)))) ^
((0x0b >> 4 & 1) * xtime(xtime(xtime(xtime(b)))))) ^
(((0x0d & 1) * c) ^ ((0x0d >> 1 & 1) * xtime(c)) ^
((0x0d >> 2 & 1) * xtime(xtime(c))) ^
((0x0d >> 3 & 1) * xtime(xtime(xtime(c)))) ^
((0x0d >> 4 & 1) * xtime(xtime(xtime(xtime(c)))))) ^
(((0x09 & 1) * d) ^ ((0x09 >> 1 & 1) * xtime(d)) ^
((0x09 >> 2 & 1) * xtime(xtime(d))) ^
((0x09 >> 3 & 1) * xtime(xtime(xtime(d)))) ^
((0x09 >> 4 & 1) * xtime(xtime(xtime(xtime(d))))));
AES_state->t[i][1] = (((0x09 & 1) * a) ^ ((0x09 >> 1 & 1) * xtime(a)) ^
((0x09 >> 2 & 1) * xtime(xtime(a))) ^
((0x09 >> 3 & 1) * xtime(xtime(xtime(a)))) ^
((0x09 >> 4 & 1) * xtime(xtime(xtime(xtime(a)))))) ^
(((0x0e & 1) * b) ^ ((0x0e >> 1 & 1) * xtime(b)) ^
((0x0e >> 2 & 1) * xtime(xtime(b))) ^
((0x0e >> 3 & 1) * xtime(xtime(xtime(b)))) ^
((0x0e >> 4 & 1) * xtime(xtime(xtime(xtime(b)))))) ^
(((0x0b & 1) * c) ^ ((0x0b >> 1 & 1) * xtime(c)) ^
((0x0b >> 2 & 1) * xtime(xtime(c))) ^
((0x0b >> 3 & 1) * xtime(xtime(xtime(c)))) ^
((0x0b >> 4 & 1) * xtime(xtime(xtime(xtime(c)))))) ^
(((0x0d & 1) * d) ^ ((0x0d >> 1 & 1) * xtime(d)) ^
((0x0d >> 2 & 1) * xtime(xtime(d))) ^
((0x0d >> 3 & 1) * xtime(xtime(xtime(d)))) ^
((0x0d >> 4 & 1) * xtime(xtime(xtime(xtime(d))))));
AES_state->t[i][2] = (((0x0d & 1) * a) ^ ((0x0d >> 1 & 1) * xtime(a)) ^
((0x0d >> 2 & 1) * xtime(xtime(a))) ^
((0x0d >> 3 & 1) * xtime(xtime(xtime(a)))) ^
((0x0d >> 4 & 1) * xtime(xtime(xtime(xtime(a)))))) ^
(((0x09 & 1) * b) ^ ((0x09 >> 1 & 1) * xtime(b)) ^
((0x09 >> 2 & 1) * xtime(xtime(b))) ^
((0x09 >> 3 & 1) * xtime(xtime(xtime(b)))) ^
((0x09 >> 4 & 1) * xtime(xtime(xtime(xtime(b)))))) ^
(((0x0e & 1) * c) ^ ((0x0e >> 1 & 1) * xtime(c)) ^
((0x0e >> 2 & 1) * xtime(xtime(c))) ^
((0x0e >> 3 & 1) * xtime(xtime(xtime(c)))) ^
((0x0e >> 4 & 1) * xtime(xtime(xtime(xtime(c)))))) ^
(((0x0b & 1) * d) ^ ((0x0b >> 1 & 1) * xtime(d)) ^
((0x0b >> 2 & 1) * xtime(xtime(d))) ^
((0x0b >> 3 & 1) * xtime(xtime(xtime(d)))) ^
((0x0b >> 4 & 1) * xtime(xtime(xtime(xtime(d))))));
AES_state->t[i][3] = (((0x0b & 1) * a) ^ ((0x0b >> 1 & 1) * xtime(a)) ^
((0x0b >> 2 & 1) * xtime(xtime(a))) ^
((0x0b >> 3 & 1) * xtime(xtime(xtime(a)))) ^
((0x0b >> 4 & 1) * xtime(xtime(xtime(xtime(a)))))) ^
(((0x0d & 1) * b) ^ ((0x0d >> 1 & 1) * xtime(b)) ^
((0x0d >> 2 & 1) * xtime(xtime(b))) ^
((0x0d >> 3 & 1) * xtime(xtime(xtime(b)))) ^
((0x0d >> 4 & 1) * xtime(xtime(xtime(xtime(b)))))) ^
(((0x09 & 1) * c) ^ ((0x09 >> 1 & 1) * xtime(c)) ^
((0x09 >> 2 & 1) * xtime(xtime(c))) ^
((0x09 >> 3 & 1) * xtime(xtime(xtime(c)))) ^
((0x09 >> 4 & 1) * xtime(xtime(xtime(xtime(c)))))) ^
(((0x0e & 1) * d) ^ ((0x0e >> 1 & 1) * xtime(d)) ^
((0x0e >> 2 & 1) * xtime(xtime(d))) ^
((0x0e >> 3 & 1) * xtime(xtime(xtime(d)))) ^
((0x0e >> 4 & 1) * xtime(xtime(xtime(xtime(d))))));
}
}
U0 InvSubBytes(AES_state *AES_state) {
U8 i, j;
for (i = 0; i < 4; ++i) {
for (j = 0; j < 4; ++j) {
AES_state->t[j][i] = (rsbox[(AES_state->t[j][i])]);
}
}
}
U0 InvShiftRows(AES_state *AES_state) {
U8 temp;
temp = AES_state->t[3][1];
AES_state->t[3][1] = AES_state->t[2][1];
AES_state->t[2][1] = AES_state->t[1][1];
AES_state->t[1][1] = AES_state->t[0][1];
AES_state->t[0][1] = temp;
temp = AES_state->t[0][2];
AES_state->t[0][2] = AES_state->t[2][2];
AES_state->t[2][2] = temp;
temp = AES_state->t[1][2];
AES_state->t[1][2] = AES_state->t[3][2];
AES_state->t[3][2] = temp;
temp = AES_state->t[0][3];
AES_state->t[0][3] = AES_state->t[1][3];
AES_state->t[1][3] = AES_state->t[2][3];
AES_state->t[2][3] = AES_state->t[3][3];
AES_state->t[3][3] = temp;
}
U0 Cipher(AES_state *AES_state, U8 *RoundKey) {
U8 round = 0;
AddRoundKey(0, AES_state, RoundKey);
for (round = 1; round == round; ++round) {
SubBytes(AES_state);
ShiftRows(AES_state);
if (round == 14) {
break;
}
MixColumns(AES_state);
AddRoundKey(round, AES_state, RoundKey);
}
AddRoundKey(14, AES_state, RoundKey);
}
U0 InvCipher(AES_state *AES_state, U8 *RoundKey) {
U8 round = 0;
AddRoundKey(14, AES_state, RoundKey);
for (round = (14 - 1); round == round; --round) {
InvShiftRows(AES_state);
InvSubBytes(AES_state);
AddRoundKey(round, AES_state, RoundKey);
if (round == 0) {
break;
}
InvMixColumns(AES_state);
}
}
U0 XorWithIv(U8 *buf, U8 *Iv) {
U8 i;
for (i = 0; i < 16; ++i) {
buf[i] ^= Iv[i];
}
}
U0 AES_CBC_encrypt_buffer(AES_ctx *ctx, U8 *buf, I64 length) {
I64 i;
U8 *Iv = ctx->Iv;
for (i = 0; i < length; i += 16) {
XorWithIv(buf, Iv);
Cipher(buf, ctx->RoundKey);
Iv = buf;
buf += 16;
}
MemCpy(ctx->Iv, Iv, 16);
}
U0 AES_CBC_decrypt_buffer(AES_ctx *ctx, U8 *buf, I64 length) {
I64 i;
U8 storeNextIv[16];
for (i = 0; i < length; i += 16) {
MemCpy(storeNextIv, buf, 16);
InvCipher(buf, ctx->RoundKey);
XorWithIv(buf, ctx->Iv);
MemCpy(ctx->Iv, storeNextIv, 16);
buf += 16;
}
}
ENABLE_STDOUT;
"[OK] aes256 \n";
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