diff options
Diffstat (limited to 'src/vppinfra/crypto/aes_cbc.h')
| -rw-r--r-- | src/vppinfra/crypto/aes_cbc.h | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/src/vppinfra/crypto/aes_cbc.h b/src/vppinfra/crypto/aes_cbc.h index cb3d0784051..ee9263df260 100644 --- a/src/vppinfra/crypto/aes_cbc.h +++ b/src/vppinfra/crypto/aes_cbc.h @@ -539,4 +539,207 @@ clib_aes256_cbc_decrypt (const aes_cbc_key_data_t *kd, const u8 *ciphertext, clib_aes_cbc_decrypt (kd, ciphertext, len, iv, AES_KEY_256, plaintext); } +#if __GNUC__ > 4 && !__clang__ && CLIB_DEBUG == 0 +#pragma GCC optimize("O3") +#endif + +#if defined(__VAES__) && defined(__AVX512F__) +#define u8xN u8x64 +#define u32xN u32x16 +#define u32xN_min_scalar u32x16_min_scalar +#define u32xN_is_all_zero u32x16_is_all_zero +#define u32xN_splat u32x16_splat +#elif defined(__VAES__) +#define u8xN u8x32 +#define u32xN u32x8 +#define u32xN_min_scalar u32x8_min_scalar +#define u32xN_is_all_zero u32x8_is_all_zero +#define u32xN_splat u32x8_splat +#else +#define u8xN u8x16 +#define u32xN u32x4 +#define u32xN_min_scalar u32x4_min_scalar +#define u32xN_is_all_zero u32x4_is_all_zero +#define u32xN_splat u32x4_splat +#endif + +static_always_inline u32 +clib_aes_cbc_encrypt_multi (aes_cbc_key_data_t **key_data, + const uword *key_indices, u8 **plaintext, + const uword *oplen, u8 **iv, aes_key_size_t ks, + u8 **ciphertext, uword n_ops) +{ + int rounds = AES_KEY_ROUNDS (ks); + u8 placeholder[8192]; + u32 i, j, count, n_left = n_ops; + u32xN placeholder_mask = {}; + u32xN len = {}; + u32 key_index[4 * N_AES_LANES]; + u8 *src[4 * N_AES_LANES] = {}; + u8 *dst[4 * N_AES_LANES] = {}; + u8xN r[4] = {}; + u8xN k[15][4] = {}; + + for (i = 0; i < 4 * N_AES_LANES; i++) + key_index[i] = ~0; + +more: + for (i = 0; i < 4 * N_AES_LANES; i++) + if (len[i] == 0) + { + if (n_left == 0) + { + /* no more work to enqueue, so we are enqueueing placeholder buffer + */ + src[i] = dst[i] = placeholder; + len[i] = sizeof (placeholder); + placeholder_mask[i] = 0; + } + else + { + u8x16 t = aes_block_load (iv[0]); + ((u8x16 *) r)[i] = t; + + src[i] = plaintext[0]; + dst[i] = ciphertext[0]; + len[i] = oplen[0]; + placeholder_mask[i] = ~0; + if (key_index[i] != key_indices[0]) + { + aes_cbc_key_data_t *kd; + key_index[i] = key_indices[0]; + kd = key_data[key_index[i]]; + for (j = 0; j < rounds + 1; j++) + ((u8x16 *) k[j])[i] = kd->encrypt_key[j]; + } + n_left--; + iv++; + ciphertext++; + plaintext++; + key_indices++; + oplen++; + } + } + + count = u32xN_min_scalar (len); + + ASSERT (count % 16 == 0); + + for (i = 0; i < count; i += 16) + { +#if defined(__VAES__) && defined(__AVX512F__) + r[0] = u8x64_xor3 (r[0], aes_block_load_x4 (src, i), k[0][0]); + r[1] = u8x64_xor3 (r[1], aes_block_load_x4 (src + 4, i), k[0][1]); + r[2] = u8x64_xor3 (r[2], aes_block_load_x4 (src + 8, i), k[0][2]); + r[3] = u8x64_xor3 (r[3], aes_block_load_x4 (src + 12, i), k[0][3]); + + for (j = 1; j < rounds; j++) + { + r[0] = aes_enc_round_x4 (r[0], k[j][0]); + r[1] = aes_enc_round_x4 (r[1], k[j][1]); + r[2] = aes_enc_round_x4 (r[2], k[j][2]); + r[3] = aes_enc_round_x4 (r[3], k[j][3]); + } + r[0] = aes_enc_last_round_x4 (r[0], k[j][0]); + r[1] = aes_enc_last_round_x4 (r[1], k[j][1]); + r[2] = aes_enc_last_round_x4 (r[2], k[j][2]); + r[3] = aes_enc_last_round_x4 (r[3], k[j][3]); + + aes_block_store_x4 (dst, i, r[0]); + aes_block_store_x4 (dst + 4, i, r[1]); + aes_block_store_x4 (dst + 8, i, r[2]); + aes_block_store_x4 (dst + 12, i, r[3]); +#elif defined(__VAES__) + r[0] = u8x32_xor3 (r[0], aes_block_load_x2 (src, i), k[0][0]); + r[1] = u8x32_xor3 (r[1], aes_block_load_x2 (src + 2, i), k[0][1]); + r[2] = u8x32_xor3 (r[2], aes_block_load_x2 (src + 4, i), k[0][2]); + r[3] = u8x32_xor3 (r[3], aes_block_load_x2 (src + 6, i), k[0][3]); + + for (j = 1; j < rounds; j++) + { + r[0] = aes_enc_round_x2 (r[0], k[j][0]); + r[1] = aes_enc_round_x2 (r[1], k[j][1]); + r[2] = aes_enc_round_x2 (r[2], k[j][2]); + r[3] = aes_enc_round_x2 (r[3], k[j][3]); + } + r[0] = aes_enc_last_round_x2 (r[0], k[j][0]); + r[1] = aes_enc_last_round_x2 (r[1], k[j][1]); + r[2] = aes_enc_last_round_x2 (r[2], k[j][2]); + r[3] = aes_enc_last_round_x2 (r[3], k[j][3]); + + aes_block_store_x2 (dst, i, r[0]); + aes_block_store_x2 (dst + 2, i, r[1]); + aes_block_store_x2 (dst + 4, i, r[2]); + aes_block_store_x2 (dst + 6, i, r[3]); +#else +#if __x86_64__ + r[0] = u8x16_xor3 (r[0], aes_block_load (src[0] + i), k[0][0]); + r[1] = u8x16_xor3 (r[1], aes_block_load (src[1] + i), k[0][1]); + r[2] = u8x16_xor3 (r[2], aes_block_load (src[2] + i), k[0][2]); + r[3] = u8x16_xor3 (r[3], aes_block_load (src[3] + i), k[0][3]); + + for (j = 1; j < rounds; j++) + { + r[0] = aes_enc_round_x1 (r[0], k[j][0]); + r[1] = aes_enc_round_x1 (r[1], k[j][1]); + r[2] = aes_enc_round_x1 (r[2], k[j][2]); + r[3] = aes_enc_round_x1 (r[3], k[j][3]); + } + + r[0] = aes_enc_last_round_x1 (r[0], k[j][0]); + r[1] = aes_enc_last_round_x1 (r[1], k[j][1]); + r[2] = aes_enc_last_round_x1 (r[2], k[j][2]); + r[3] = aes_enc_last_round_x1 (r[3], k[j][3]); + + aes_block_store (dst[0] + i, r[0]); + aes_block_store (dst[1] + i, r[1]); + aes_block_store (dst[2] + i, r[2]); + aes_block_store (dst[3] + i, r[3]); +#else + r[0] ^= aes_block_load (src[0] + i); + r[1] ^= aes_block_load (src[1] + i); + r[2] ^= aes_block_load (src[2] + i); + r[3] ^= aes_block_load (src[3] + i); + for (j = 0; j < rounds - 1; j++) + { + r[0] = vaesmcq_u8 (vaeseq_u8 (r[0], k[j][0])); + r[1] = vaesmcq_u8 (vaeseq_u8 (r[1], k[j][1])); + r[2] = vaesmcq_u8 (vaeseq_u8 (r[2], k[j][2])); + r[3] = vaesmcq_u8 (vaeseq_u8 (r[3], k[j][3])); + } + r[0] = vaeseq_u8 (r[0], k[j][0]) ^ k[rounds][0]; + r[1] = vaeseq_u8 (r[1], k[j][1]) ^ k[rounds][1]; + r[2] = vaeseq_u8 (r[2], k[j][2]) ^ k[rounds][2]; + r[3] = vaeseq_u8 (r[3], k[j][3]) ^ k[rounds][3]; + aes_block_store (dst[0] + i, r[0]); + aes_block_store (dst[1] + i, r[1]); + aes_block_store (dst[2] + i, r[2]); + aes_block_store (dst[3] + i, r[3]); +#endif +#endif + } + + len -= u32xN_splat (count); + + for (i = 0; i < 4 * N_AES_LANES; i++) + { + src[i] += count; + dst[i] += count; + } + + if (n_left > 0) + goto more; + + if (!u32xN_is_all_zero (len & placeholder_mask)) + goto more; + + return n_ops; +} + +#undef u8xN +#undef u32xN +#undef u32xN_min_scalar +#undef u32xN_is_all_zero +#undef u32xN_splat + #endif /* __crypto_aes_cbc_h__ */ |