[331] | 1 | /*
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| 2 | * Copyright 2011-2016 The OpenSSL Project Authors. All Rights Reserved.
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| 3 | *
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| 4 | * Licensed under the OpenSSL license (the "License"). You may not use
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| 5 | * this file except in compliance with the License. You can obtain a copy
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| 6 | * in the file LICENSE in the source distribution or at
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| 7 | * https://www.openssl.org/source/license.html
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| 8 | */
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| 9 |
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| 10 | #include <openssl/opensslconf.h>
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| 11 |
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| 12 | #include <stdio.h>
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| 13 | #include <string.h>
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| 14 |
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| 15 | #include <openssl/evp.h>
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| 16 | #include <openssl/objects.h>
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| 17 | #include <openssl/aes.h>
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| 18 | #include <openssl/sha.h>
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| 19 | #include <openssl/rand.h>
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| 20 | #include "../modes/modes_lcl.h"
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| 21 | #include "internal/evp_int.h"
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| 22 | #include "internal/constant_time_locl.h"
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| 23 |
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| 24 | typedef struct {
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| 25 | AES_KEY ks;
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| 26 | SHA_CTX head, tail, md;
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| 27 | size_t payload_length; /* AAD length in decrypt case */
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| 28 | union {
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| 29 | unsigned int tls_ver;
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| 30 | unsigned char tls_aad[16]; /* 13 used */
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| 31 | } aux;
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| 32 | } EVP_AES_HMAC_SHA1;
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| 33 |
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| 34 | #define NO_PAYLOAD_LENGTH ((size_t)-1)
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| 35 |
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| 36 | #if defined(AES_ASM) && ( \
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| 37 | defined(__x86_64) || defined(__x86_64__) || \
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| 38 | defined(_M_AMD64) || defined(_M_X64) )
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| 39 |
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| 40 | extern unsigned int OPENSSL_ia32cap_P[];
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| 41 | # define AESNI_CAPABLE (1<<(57-32))
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| 42 |
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| 43 | int aesni_set_encrypt_key(const unsigned char *userKey, int bits,
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| 44 | AES_KEY *key);
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| 45 | int aesni_set_decrypt_key(const unsigned char *userKey, int bits,
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| 46 | AES_KEY *key);
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| 47 |
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| 48 | void aesni_cbc_encrypt(const unsigned char *in,
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| 49 | unsigned char *out,
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| 50 | size_t length,
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| 51 | const AES_KEY *key, unsigned char *ivec, int enc);
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| 52 |
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| 53 | void aesni_cbc_sha1_enc(const void *inp, void *out, size_t blocks,
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| 54 | const AES_KEY *key, unsigned char iv[16],
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| 55 | SHA_CTX *ctx, const void *in0);
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| 56 |
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| 57 | void aesni256_cbc_sha1_dec(const void *inp, void *out, size_t blocks,
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| 58 | const AES_KEY *key, unsigned char iv[16],
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| 59 | SHA_CTX *ctx, const void *in0);
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| 60 |
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| 61 | # define data(ctx) ((EVP_AES_HMAC_SHA1 *)EVP_CIPHER_CTX_get_cipher_data(ctx))
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| 62 |
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| 63 | static int aesni_cbc_hmac_sha1_init_key(EVP_CIPHER_CTX *ctx,
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| 64 | const unsigned char *inkey,
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| 65 | const unsigned char *iv, int enc)
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| 66 | {
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| 67 | EVP_AES_HMAC_SHA1 *key = data(ctx);
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| 68 | int ret;
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| 69 |
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| 70 | if (enc)
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| 71 | ret = aesni_set_encrypt_key(inkey,
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| 72 | EVP_CIPHER_CTX_key_length(ctx) * 8,
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| 73 | &key->ks);
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| 74 | else
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| 75 | ret = aesni_set_decrypt_key(inkey,
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| 76 | EVP_CIPHER_CTX_key_length(ctx) * 8,
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| 77 | &key->ks);
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| 78 |
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| 79 | SHA1_Init(&key->head); /* handy when benchmarking */
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| 80 | key->tail = key->head;
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| 81 | key->md = key->head;
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| 82 |
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| 83 | key->payload_length = NO_PAYLOAD_LENGTH;
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| 84 |
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| 85 | return ret < 0 ? 0 : 1;
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| 86 | }
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| 87 |
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| 88 | # define STITCHED_CALL
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| 89 | # undef STITCHED_DECRYPT_CALL
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| 90 |
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| 91 | # if !defined(STITCHED_CALL)
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| 92 | # define aes_off 0
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| 93 | # endif
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| 94 |
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| 95 | void sha1_block_data_order(void *c, const void *p, size_t len);
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| 96 |
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| 97 | static void sha1_update(SHA_CTX *c, const void *data, size_t len)
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| 98 | {
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| 99 | const unsigned char *ptr = data;
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| 100 | size_t res;
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| 101 |
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| 102 | if ((res = c->num)) {
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| 103 | res = SHA_CBLOCK - res;
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| 104 | if (len < res)
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| 105 | res = len;
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| 106 | SHA1_Update(c, ptr, res);
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| 107 | ptr += res;
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| 108 | len -= res;
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| 109 | }
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| 110 |
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| 111 | res = len % SHA_CBLOCK;
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| 112 | len -= res;
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| 113 |
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| 114 | if (len) {
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| 115 | sha1_block_data_order(c, ptr, len / SHA_CBLOCK);
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| 116 |
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| 117 | ptr += len;
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| 118 | c->Nh += len >> 29;
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| 119 | c->Nl += len <<= 3;
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| 120 | if (c->Nl < (unsigned int)len)
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| 121 | c->Nh++;
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| 122 | }
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| 123 |
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| 124 | if (res)
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| 125 | SHA1_Update(c, ptr, res);
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| 126 | }
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| 127 |
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| 128 | # ifdef SHA1_Update
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| 129 | # undef SHA1_Update
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| 130 | # endif
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| 131 | # define SHA1_Update sha1_update
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| 132 |
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| 133 | # if !defined(OPENSSL_NO_MULTIBLOCK)
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| 134 |
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| 135 | typedef struct {
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| 136 | unsigned int A[8], B[8], C[8], D[8], E[8];
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| 137 | } SHA1_MB_CTX;
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| 138 | typedef struct {
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| 139 | const unsigned char *ptr;
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| 140 | int blocks;
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| 141 | } HASH_DESC;
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| 142 |
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| 143 | void sha1_multi_block(SHA1_MB_CTX *, const HASH_DESC *, int);
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| 144 |
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| 145 | typedef struct {
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| 146 | const unsigned char *inp;
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| 147 | unsigned char *out;
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| 148 | int blocks;
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| 149 | u64 iv[2];
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| 150 | } CIPH_DESC;
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| 151 |
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| 152 | void aesni_multi_cbc_encrypt(CIPH_DESC *, void *, int);
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| 153 |
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| 154 | static size_t tls1_1_multi_block_encrypt(EVP_AES_HMAC_SHA1 *key,
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| 155 | unsigned char *out,
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| 156 | const unsigned char *inp,
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| 157 | size_t inp_len, int n4x)
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| 158 | { /* n4x is 1 or 2 */
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| 159 | HASH_DESC hash_d[8], edges[8];
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| 160 | CIPH_DESC ciph_d[8];
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| 161 | unsigned char storage[sizeof(SHA1_MB_CTX) + 32];
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| 162 | union {
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| 163 | u64 q[16];
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| 164 | u32 d[32];
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| 165 | u8 c[128];
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| 166 | } blocks[8];
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| 167 | SHA1_MB_CTX *ctx;
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| 168 | unsigned int frag, last, packlen, i, x4 = 4 * n4x, minblocks, processed =
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| 169 | 0;
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| 170 | size_t ret = 0;
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| 171 | u8 *IVs;
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| 172 | # if defined(BSWAP8)
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| 173 | u64 seqnum;
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| 174 | # endif
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| 175 |
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| 176 | /* ask for IVs in bulk */
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| 177 | if (RAND_bytes((IVs = blocks[0].c), 16 * x4) <= 0)
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| 178 | return 0;
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| 179 |
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| 180 | ctx = (SHA1_MB_CTX *) (storage + 32 - ((size_t)storage % 32)); /* align */
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| 181 |
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| 182 | frag = (unsigned int)inp_len >> (1 + n4x);
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| 183 | last = (unsigned int)inp_len + frag - (frag << (1 + n4x));
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| 184 | if (last > frag && ((last + 13 + 9) % 64) < (x4 - 1)) {
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| 185 | frag++;
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| 186 | last -= x4 - 1;
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| 187 | }
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| 188 |
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| 189 | packlen = 5 + 16 + ((frag + 20 + 16) & -16);
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| 190 |
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| 191 | /* populate descriptors with pointers and IVs */
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| 192 | hash_d[0].ptr = inp;
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| 193 | ciph_d[0].inp = inp;
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| 194 | /* 5+16 is place for header and explicit IV */
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| 195 | ciph_d[0].out = out + 5 + 16;
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| 196 | memcpy(ciph_d[0].out - 16, IVs, 16);
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| 197 | memcpy(ciph_d[0].iv, IVs, 16);
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| 198 | IVs += 16;
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| 199 |
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| 200 | for (i = 1; i < x4; i++) {
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| 201 | ciph_d[i].inp = hash_d[i].ptr = hash_d[i - 1].ptr + frag;
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| 202 | ciph_d[i].out = ciph_d[i - 1].out + packlen;
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| 203 | memcpy(ciph_d[i].out - 16, IVs, 16);
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| 204 | memcpy(ciph_d[i].iv, IVs, 16);
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| 205 | IVs += 16;
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| 206 | }
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| 207 |
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| 208 | # if defined(BSWAP8)
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| 209 | memcpy(blocks[0].c, key->md.data, 8);
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| 210 | seqnum = BSWAP8(blocks[0].q[0]);
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| 211 | # endif
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| 212 | for (i = 0; i < x4; i++) {
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| 213 | unsigned int len = (i == (x4 - 1) ? last : frag);
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| 214 | # if !defined(BSWAP8)
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| 215 | unsigned int carry, j;
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| 216 | # endif
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| 217 |
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| 218 | ctx->A[i] = key->md.h0;
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| 219 | ctx->B[i] = key->md.h1;
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| 220 | ctx->C[i] = key->md.h2;
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| 221 | ctx->D[i] = key->md.h3;
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| 222 | ctx->E[i] = key->md.h4;
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| 223 |
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| 224 | /* fix seqnum */
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| 225 | # if defined(BSWAP8)
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| 226 | blocks[i].q[0] = BSWAP8(seqnum + i);
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| 227 | # else
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| 228 | for (carry = i, j = 8; j--;) {
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| 229 | blocks[i].c[j] = ((u8 *)key->md.data)[j] + carry;
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| 230 | carry = (blocks[i].c[j] - carry) >> (sizeof(carry) * 8 - 1);
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| 231 | }
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| 232 | # endif
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| 233 | blocks[i].c[8] = ((u8 *)key->md.data)[8];
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| 234 | blocks[i].c[9] = ((u8 *)key->md.data)[9];
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| 235 | blocks[i].c[10] = ((u8 *)key->md.data)[10];
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| 236 | /* fix length */
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| 237 | blocks[i].c[11] = (u8)(len >> 8);
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| 238 | blocks[i].c[12] = (u8)(len);
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| 239 |
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| 240 | memcpy(blocks[i].c + 13, hash_d[i].ptr, 64 - 13);
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| 241 | hash_d[i].ptr += 64 - 13;
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| 242 | hash_d[i].blocks = (len - (64 - 13)) / 64;
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| 243 |
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| 244 | edges[i].ptr = blocks[i].c;
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| 245 | edges[i].blocks = 1;
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| 246 | }
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| 247 |
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| 248 | /* hash 13-byte headers and first 64-13 bytes of inputs */
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| 249 | sha1_multi_block(ctx, edges, n4x);
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| 250 | /* hash bulk inputs */
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| 251 | # define MAXCHUNKSIZE 2048
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| 252 | # if MAXCHUNKSIZE%64
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| 253 | # error "MAXCHUNKSIZE is not divisible by 64"
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| 254 | # elif MAXCHUNKSIZE
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| 255 | /*
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| 256 | * goal is to minimize pressure on L1 cache by moving in shorter steps,
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| 257 | * so that hashed data is still in the cache by the time we encrypt it
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| 258 | */
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| 259 | minblocks = ((frag <= last ? frag : last) - (64 - 13)) / 64;
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| 260 | if (minblocks > MAXCHUNKSIZE / 64) {
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| 261 | for (i = 0; i < x4; i++) {
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| 262 | edges[i].ptr = hash_d[i].ptr;
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| 263 | edges[i].blocks = MAXCHUNKSIZE / 64;
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| 264 | ciph_d[i].blocks = MAXCHUNKSIZE / 16;
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| 265 | }
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| 266 | do {
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| 267 | sha1_multi_block(ctx, edges, n4x);
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| 268 | aesni_multi_cbc_encrypt(ciph_d, &key->ks, n4x);
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| 269 |
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| 270 | for (i = 0; i < x4; i++) {
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| 271 | edges[i].ptr = hash_d[i].ptr += MAXCHUNKSIZE;
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| 272 | hash_d[i].blocks -= MAXCHUNKSIZE / 64;
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| 273 | edges[i].blocks = MAXCHUNKSIZE / 64;
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| 274 | ciph_d[i].inp += MAXCHUNKSIZE;
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| 275 | ciph_d[i].out += MAXCHUNKSIZE;
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| 276 | ciph_d[i].blocks = MAXCHUNKSIZE / 16;
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| 277 | memcpy(ciph_d[i].iv, ciph_d[i].out - 16, 16);
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| 278 | }
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| 279 | processed += MAXCHUNKSIZE;
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| 280 | minblocks -= MAXCHUNKSIZE / 64;
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| 281 | } while (minblocks > MAXCHUNKSIZE / 64);
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| 282 | }
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| 283 | # endif
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| 284 | # undef MAXCHUNKSIZE
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| 285 | sha1_multi_block(ctx, hash_d, n4x);
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| 286 |
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| 287 | memset(blocks, 0, sizeof(blocks));
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| 288 | for (i = 0; i < x4; i++) {
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| 289 | unsigned int len = (i == (x4 - 1) ? last : frag),
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| 290 | off = hash_d[i].blocks * 64;
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| 291 | const unsigned char *ptr = hash_d[i].ptr + off;
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| 292 |
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| 293 | off = (len - processed) - (64 - 13) - off; /* remainder actually */
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| 294 | memcpy(blocks[i].c, ptr, off);
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| 295 | blocks[i].c[off] = 0x80;
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| 296 | len += 64 + 13; /* 64 is HMAC header */
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| 297 | len *= 8; /* convert to bits */
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| 298 | if (off < (64 - 8)) {
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| 299 | # ifdef BSWAP4
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| 300 | blocks[i].d[15] = BSWAP4(len);
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| 301 | # else
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| 302 | PUTU32(blocks[i].c + 60, len);
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| 303 | # endif
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| 304 | edges[i].blocks = 1;
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| 305 | } else {
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| 306 | # ifdef BSWAP4
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| 307 | blocks[i].d[31] = BSWAP4(len);
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| 308 | # else
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| 309 | PUTU32(blocks[i].c + 124, len);
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| 310 | # endif
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| 311 | edges[i].blocks = 2;
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| 312 | }
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| 313 | edges[i].ptr = blocks[i].c;
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| 314 | }
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| 315 |
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| 316 | /* hash input tails and finalize */
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| 317 | sha1_multi_block(ctx, edges, n4x);
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| 318 |
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| 319 | memset(blocks, 0, sizeof(blocks));
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| 320 | for (i = 0; i < x4; i++) {
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| 321 | # ifdef BSWAP4
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| 322 | blocks[i].d[0] = BSWAP4(ctx->A[i]);
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| 323 | ctx->A[i] = key->tail.h0;
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| 324 | blocks[i].d[1] = BSWAP4(ctx->B[i]);
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| 325 | ctx->B[i] = key->tail.h1;
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| 326 | blocks[i].d[2] = BSWAP4(ctx->C[i]);
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| 327 | ctx->C[i] = key->tail.h2;
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| 328 | blocks[i].d[3] = BSWAP4(ctx->D[i]);
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| 329 | ctx->D[i] = key->tail.h3;
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| 330 | blocks[i].d[4] = BSWAP4(ctx->E[i]);
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| 331 | ctx->E[i] = key->tail.h4;
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| 332 | blocks[i].c[20] = 0x80;
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| 333 | blocks[i].d[15] = BSWAP4((64 + 20) * 8);
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| 334 | # else
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| 335 | PUTU32(blocks[i].c + 0, ctx->A[i]);
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| 336 | ctx->A[i] = key->tail.h0;
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| 337 | PUTU32(blocks[i].c + 4, ctx->B[i]);
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| 338 | ctx->B[i] = key->tail.h1;
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| 339 | PUTU32(blocks[i].c + 8, ctx->C[i]);
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| 340 | ctx->C[i] = key->tail.h2;
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| 341 | PUTU32(blocks[i].c + 12, ctx->D[i]);
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| 342 | ctx->D[i] = key->tail.h3;
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| 343 | PUTU32(blocks[i].c + 16, ctx->E[i]);
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| 344 | ctx->E[i] = key->tail.h4;
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| 345 | blocks[i].c[20] = 0x80;
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| 346 | PUTU32(blocks[i].c + 60, (64 + 20) * 8);
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| 347 | # endif
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| 348 | edges[i].ptr = blocks[i].c;
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| 349 | edges[i].blocks = 1;
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| 350 | }
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| 351 |
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| 352 | /* finalize MACs */
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| 353 | sha1_multi_block(ctx, edges, n4x);
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| 354 |
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| 355 | for (i = 0; i < x4; i++) {
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| 356 | unsigned int len = (i == (x4 - 1) ? last : frag), pad, j;
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| 357 | unsigned char *out0 = out;
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| 358 |
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| 359 | memcpy(ciph_d[i].out, ciph_d[i].inp, len - processed);
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| 360 | ciph_d[i].inp = ciph_d[i].out;
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| 361 |
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| 362 | out += 5 + 16 + len;
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| 363 |
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| 364 | /* write MAC */
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| 365 | PUTU32(out + 0, ctx->A[i]);
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| 366 | PUTU32(out + 4, ctx->B[i]);
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| 367 | PUTU32(out + 8, ctx->C[i]);
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| 368 | PUTU32(out + 12, ctx->D[i]);
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| 369 | PUTU32(out + 16, ctx->E[i]);
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| 370 | out += 20;
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| 371 | len += 20;
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| 372 |
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| 373 | /* pad */
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| 374 | pad = 15 - len % 16;
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| 375 | for (j = 0; j <= pad; j++)
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| 376 | *(out++) = pad;
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| 377 | len += pad + 1;
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| 378 |
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| 379 | ciph_d[i].blocks = (len - processed) / 16;
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| 380 | len += 16; /* account for explicit iv */
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| 381 |
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| 382 | /* arrange header */
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| 383 | out0[0] = ((u8 *)key->md.data)[8];
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| 384 | out0[1] = ((u8 *)key->md.data)[9];
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| 385 | out0[2] = ((u8 *)key->md.data)[10];
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| 386 | out0[3] = (u8)(len >> 8);
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| 387 | out0[4] = (u8)(len);
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| 388 |
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| 389 | ret += len + 5;
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| 390 | inp += frag;
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| 391 | }
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| 392 |
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| 393 | aesni_multi_cbc_encrypt(ciph_d, &key->ks, n4x);
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| 394 |
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| 395 | OPENSSL_cleanse(blocks, sizeof(blocks));
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| 396 | OPENSSL_cleanse(ctx, sizeof(*ctx));
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| 397 |
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| 398 | return ret;
|
---|
| 399 | }
|
---|
| 400 | # endif
|
---|
| 401 |
|
---|
| 402 | static int aesni_cbc_hmac_sha1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
|
---|
| 403 | const unsigned char *in, size_t len)
|
---|
| 404 | {
|
---|
| 405 | EVP_AES_HMAC_SHA1 *key = data(ctx);
|
---|
| 406 | unsigned int l;
|
---|
| 407 | size_t plen = key->payload_length, iv = 0, /* explicit IV in TLS 1.1 and
|
---|
| 408 | * later */
|
---|
| 409 | sha_off = 0;
|
---|
| 410 | # if defined(STITCHED_CALL)
|
---|
| 411 | size_t aes_off = 0, blocks;
|
---|
| 412 |
|
---|
| 413 | sha_off = SHA_CBLOCK - key->md.num;
|
---|
| 414 | # endif
|
---|
| 415 |
|
---|
| 416 | key->payload_length = NO_PAYLOAD_LENGTH;
|
---|
| 417 |
|
---|
| 418 | if (len % AES_BLOCK_SIZE)
|
---|
| 419 | return 0;
|
---|
| 420 |
|
---|
| 421 | if (EVP_CIPHER_CTX_encrypting(ctx)) {
|
---|
| 422 | if (plen == NO_PAYLOAD_LENGTH)
|
---|
| 423 | plen = len;
|
---|
| 424 | else if (len !=
|
---|
| 425 | ((plen + SHA_DIGEST_LENGTH +
|
---|
| 426 | AES_BLOCK_SIZE) & -AES_BLOCK_SIZE))
|
---|
| 427 | return 0;
|
---|
| 428 | else if (key->aux.tls_ver >= TLS1_1_VERSION)
|
---|
| 429 | iv = AES_BLOCK_SIZE;
|
---|
| 430 |
|
---|
| 431 | # if defined(STITCHED_CALL)
|
---|
| 432 | if (plen > (sha_off + iv)
|
---|
| 433 | && (blocks = (plen - (sha_off + iv)) / SHA_CBLOCK)) {
|
---|
| 434 | SHA1_Update(&key->md, in + iv, sha_off);
|
---|
| 435 |
|
---|
| 436 | aesni_cbc_sha1_enc(in, out, blocks, &key->ks,
|
---|
| 437 | EVP_CIPHER_CTX_iv_noconst(ctx),
|
---|
| 438 | &key->md, in + iv + sha_off);
|
---|
| 439 | blocks *= SHA_CBLOCK;
|
---|
| 440 | aes_off += blocks;
|
---|
| 441 | sha_off += blocks;
|
---|
| 442 | key->md.Nh += blocks >> 29;
|
---|
| 443 | key->md.Nl += blocks <<= 3;
|
---|
| 444 | if (key->md.Nl < (unsigned int)blocks)
|
---|
| 445 | key->md.Nh++;
|
---|
| 446 | } else {
|
---|
| 447 | sha_off = 0;
|
---|
| 448 | }
|
---|
| 449 | # endif
|
---|
| 450 | sha_off += iv;
|
---|
| 451 | SHA1_Update(&key->md, in + sha_off, plen - sha_off);
|
---|
| 452 |
|
---|
| 453 | if (plen != len) { /* "TLS" mode of operation */
|
---|
| 454 | if (in != out)
|
---|
| 455 | memcpy(out + aes_off, in + aes_off, plen - aes_off);
|
---|
| 456 |
|
---|
| 457 | /* calculate HMAC and append it to payload */
|
---|
| 458 | SHA1_Final(out + plen, &key->md);
|
---|
| 459 | key->md = key->tail;
|
---|
| 460 | SHA1_Update(&key->md, out + plen, SHA_DIGEST_LENGTH);
|
---|
| 461 | SHA1_Final(out + plen, &key->md);
|
---|
| 462 |
|
---|
| 463 | /* pad the payload|hmac */
|
---|
| 464 | plen += SHA_DIGEST_LENGTH;
|
---|
| 465 | for (l = len - plen - 1; plen < len; plen++)
|
---|
| 466 | out[plen] = l;
|
---|
| 467 | /* encrypt HMAC|padding at once */
|
---|
| 468 | aesni_cbc_encrypt(out + aes_off, out + aes_off, len - aes_off,
|
---|
| 469 | &key->ks, EVP_CIPHER_CTX_iv_noconst(ctx), 1);
|
---|
| 470 | } else {
|
---|
| 471 | aesni_cbc_encrypt(in + aes_off, out + aes_off, len - aes_off,
|
---|
| 472 | &key->ks, EVP_CIPHER_CTX_iv_noconst(ctx), 1);
|
---|
| 473 | }
|
---|
| 474 | } else {
|
---|
| 475 | union {
|
---|
| 476 | unsigned int u[SHA_DIGEST_LENGTH / sizeof(unsigned int)];
|
---|
| 477 | unsigned char c[32 + SHA_DIGEST_LENGTH];
|
---|
| 478 | } mac, *pmac;
|
---|
| 479 |
|
---|
| 480 | /* arrange cache line alignment */
|
---|
| 481 | pmac = (void *)(((size_t)mac.c + 31) & ((size_t)0 - 32));
|
---|
| 482 |
|
---|
| 483 | if (plen != NO_PAYLOAD_LENGTH) { /* "TLS" mode of operation */
|
---|
| 484 | size_t inp_len, mask, j, i;
|
---|
| 485 | unsigned int res, maxpad, pad, bitlen;
|
---|
| 486 | int ret = 1;
|
---|
| 487 | union {
|
---|
| 488 | unsigned int u[SHA_LBLOCK];
|
---|
| 489 | unsigned char c[SHA_CBLOCK];
|
---|
| 490 | } *data = (void *)key->md.data;
|
---|
| 491 | # if defined(STITCHED_DECRYPT_CALL)
|
---|
| 492 | unsigned char tail_iv[AES_BLOCK_SIZE];
|
---|
| 493 | int stitch = 0;
|
---|
| 494 | # endif
|
---|
| 495 |
|
---|
| 496 | if ((key->aux.tls_aad[plen - 4] << 8 | key->aux.tls_aad[plen - 3])
|
---|
| 497 | >= TLS1_1_VERSION) {
|
---|
| 498 | if (len < (AES_BLOCK_SIZE + SHA_DIGEST_LENGTH + 1))
|
---|
| 499 | return 0;
|
---|
| 500 |
|
---|
| 501 | /* omit explicit iv */
|
---|
| 502 | memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), in, AES_BLOCK_SIZE);
|
---|
| 503 |
|
---|
| 504 | in += AES_BLOCK_SIZE;
|
---|
| 505 | out += AES_BLOCK_SIZE;
|
---|
| 506 | len -= AES_BLOCK_SIZE;
|
---|
| 507 | } else if (len < (SHA_DIGEST_LENGTH + 1))
|
---|
| 508 | return 0;
|
---|
| 509 |
|
---|
| 510 | # if defined(STITCHED_DECRYPT_CALL)
|
---|
| 511 | if (len >= 1024 && ctx->key_len == 32) {
|
---|
| 512 | /* decrypt last block */
|
---|
| 513 | memcpy(tail_iv, in + len - 2 * AES_BLOCK_SIZE,
|
---|
| 514 | AES_BLOCK_SIZE);
|
---|
| 515 | aesni_cbc_encrypt(in + len - AES_BLOCK_SIZE,
|
---|
| 516 | out + len - AES_BLOCK_SIZE, AES_BLOCK_SIZE,
|
---|
| 517 | &key->ks, tail_iv, 0);
|
---|
| 518 | stitch = 1;
|
---|
| 519 | } else
|
---|
| 520 | # endif
|
---|
| 521 | /* decrypt HMAC|padding at once */
|
---|
| 522 | aesni_cbc_encrypt(in, out, len, &key->ks,
|
---|
| 523 | EVP_CIPHER_CTX_iv_noconst(ctx), 0);
|
---|
| 524 |
|
---|
| 525 | /* figure out payload length */
|
---|
| 526 | pad = out[len - 1];
|
---|
| 527 | maxpad = len - (SHA_DIGEST_LENGTH + 1);
|
---|
| 528 | maxpad |= (255 - maxpad) >> (sizeof(maxpad) * 8 - 8);
|
---|
| 529 | maxpad &= 255;
|
---|
| 530 |
|
---|
| 531 | ret &= constant_time_ge(maxpad, pad);
|
---|
| 532 |
|
---|
| 533 | inp_len = len - (SHA_DIGEST_LENGTH + pad + 1);
|
---|
| 534 | mask = (0 - ((inp_len - len) >> (sizeof(inp_len) * 8 - 1)));
|
---|
| 535 | inp_len &= mask;
|
---|
| 536 | ret &= (int)mask;
|
---|
| 537 |
|
---|
| 538 | key->aux.tls_aad[plen - 2] = inp_len >> 8;
|
---|
| 539 | key->aux.tls_aad[plen - 1] = inp_len;
|
---|
| 540 |
|
---|
| 541 | /* calculate HMAC */
|
---|
| 542 | key->md = key->head;
|
---|
| 543 | SHA1_Update(&key->md, key->aux.tls_aad, plen);
|
---|
| 544 |
|
---|
| 545 | # if defined(STITCHED_DECRYPT_CALL)
|
---|
| 546 | if (stitch) {
|
---|
| 547 | blocks = (len - (256 + 32 + SHA_CBLOCK)) / SHA_CBLOCK;
|
---|
| 548 | aes_off = len - AES_BLOCK_SIZE - blocks * SHA_CBLOCK;
|
---|
| 549 | sha_off = SHA_CBLOCK - plen;
|
---|
| 550 |
|
---|
| 551 | aesni_cbc_encrypt(in, out, aes_off, &key->ks, ctx->iv, 0);
|
---|
| 552 |
|
---|
| 553 | SHA1_Update(&key->md, out, sha_off);
|
---|
| 554 | aesni256_cbc_sha1_dec(in + aes_off,
|
---|
| 555 | out + aes_off, blocks, &key->ks,
|
---|
| 556 | ctx->iv, &key->md, out + sha_off);
|
---|
| 557 |
|
---|
| 558 | sha_off += blocks *= SHA_CBLOCK;
|
---|
| 559 | out += sha_off;
|
---|
| 560 | len -= sha_off;
|
---|
| 561 | inp_len -= sha_off;
|
---|
| 562 |
|
---|
| 563 | key->md.Nl += (blocks << 3); /* at most 18 bits */
|
---|
| 564 | memcpy(ctx->iv, tail_iv, AES_BLOCK_SIZE);
|
---|
| 565 | }
|
---|
| 566 | # endif
|
---|
| 567 |
|
---|
| 568 | # if 1
|
---|
| 569 | len -= SHA_DIGEST_LENGTH; /* amend mac */
|
---|
| 570 | if (len >= (256 + SHA_CBLOCK)) {
|
---|
| 571 | j = (len - (256 + SHA_CBLOCK)) & (0 - SHA_CBLOCK);
|
---|
| 572 | j += SHA_CBLOCK - key->md.num;
|
---|
| 573 | SHA1_Update(&key->md, out, j);
|
---|
| 574 | out += j;
|
---|
| 575 | len -= j;
|
---|
| 576 | inp_len -= j;
|
---|
| 577 | }
|
---|
| 578 |
|
---|
| 579 | /* but pretend as if we hashed padded payload */
|
---|
| 580 | bitlen = key->md.Nl + (inp_len << 3); /* at most 18 bits */
|
---|
| 581 | # ifdef BSWAP4
|
---|
| 582 | bitlen = BSWAP4(bitlen);
|
---|
| 583 | # else
|
---|
| 584 | mac.c[0] = 0;
|
---|
| 585 | mac.c[1] = (unsigned char)(bitlen >> 16);
|
---|
| 586 | mac.c[2] = (unsigned char)(bitlen >> 8);
|
---|
| 587 | mac.c[3] = (unsigned char)bitlen;
|
---|
| 588 | bitlen = mac.u[0];
|
---|
| 589 | # endif
|
---|
| 590 |
|
---|
| 591 | pmac->u[0] = 0;
|
---|
| 592 | pmac->u[1] = 0;
|
---|
| 593 | pmac->u[2] = 0;
|
---|
| 594 | pmac->u[3] = 0;
|
---|
| 595 | pmac->u[4] = 0;
|
---|
| 596 |
|
---|
| 597 | for (res = key->md.num, j = 0; j < len; j++) {
|
---|
| 598 | size_t c = out[j];
|
---|
| 599 | mask = (j - inp_len) >> (sizeof(j) * 8 - 8);
|
---|
| 600 | c &= mask;
|
---|
| 601 | c |= 0x80 & ~mask & ~((inp_len - j) >> (sizeof(j) * 8 - 8));
|
---|
| 602 | data->c[res++] = (unsigned char)c;
|
---|
| 603 |
|
---|
| 604 | if (res != SHA_CBLOCK)
|
---|
| 605 | continue;
|
---|
| 606 |
|
---|
| 607 | /* j is not incremented yet */
|
---|
| 608 | mask = 0 - ((inp_len + 7 - j) >> (sizeof(j) * 8 - 1));
|
---|
| 609 | data->u[SHA_LBLOCK - 1] |= bitlen & mask;
|
---|
| 610 | sha1_block_data_order(&key->md, data, 1);
|
---|
| 611 | mask &= 0 - ((j - inp_len - 72) >> (sizeof(j) * 8 - 1));
|
---|
| 612 | pmac->u[0] |= key->md.h0 & mask;
|
---|
| 613 | pmac->u[1] |= key->md.h1 & mask;
|
---|
| 614 | pmac->u[2] |= key->md.h2 & mask;
|
---|
| 615 | pmac->u[3] |= key->md.h3 & mask;
|
---|
| 616 | pmac->u[4] |= key->md.h4 & mask;
|
---|
| 617 | res = 0;
|
---|
| 618 | }
|
---|
| 619 |
|
---|
| 620 | for (i = res; i < SHA_CBLOCK; i++, j++)
|
---|
| 621 | data->c[i] = 0;
|
---|
| 622 |
|
---|
| 623 | if (res > SHA_CBLOCK - 8) {
|
---|
| 624 | mask = 0 - ((inp_len + 8 - j) >> (sizeof(j) * 8 - 1));
|
---|
| 625 | data->u[SHA_LBLOCK - 1] |= bitlen & mask;
|
---|
| 626 | sha1_block_data_order(&key->md, data, 1);
|
---|
| 627 | mask &= 0 - ((j - inp_len - 73) >> (sizeof(j) * 8 - 1));
|
---|
| 628 | pmac->u[0] |= key->md.h0 & mask;
|
---|
| 629 | pmac->u[1] |= key->md.h1 & mask;
|
---|
| 630 | pmac->u[2] |= key->md.h2 & mask;
|
---|
| 631 | pmac->u[3] |= key->md.h3 & mask;
|
---|
| 632 | pmac->u[4] |= key->md.h4 & mask;
|
---|
| 633 |
|
---|
| 634 | memset(data, 0, SHA_CBLOCK);
|
---|
| 635 | j += 64;
|
---|
| 636 | }
|
---|
| 637 | data->u[SHA_LBLOCK - 1] = bitlen;
|
---|
| 638 | sha1_block_data_order(&key->md, data, 1);
|
---|
| 639 | mask = 0 - ((j - inp_len - 73) >> (sizeof(j) * 8 - 1));
|
---|
| 640 | pmac->u[0] |= key->md.h0 & mask;
|
---|
| 641 | pmac->u[1] |= key->md.h1 & mask;
|
---|
| 642 | pmac->u[2] |= key->md.h2 & mask;
|
---|
| 643 | pmac->u[3] |= key->md.h3 & mask;
|
---|
| 644 | pmac->u[4] |= key->md.h4 & mask;
|
---|
| 645 |
|
---|
| 646 | # ifdef BSWAP4
|
---|
| 647 | pmac->u[0] = BSWAP4(pmac->u[0]);
|
---|
| 648 | pmac->u[1] = BSWAP4(pmac->u[1]);
|
---|
| 649 | pmac->u[2] = BSWAP4(pmac->u[2]);
|
---|
| 650 | pmac->u[3] = BSWAP4(pmac->u[3]);
|
---|
| 651 | pmac->u[4] = BSWAP4(pmac->u[4]);
|
---|
| 652 | # else
|
---|
| 653 | for (i = 0; i < 5; i++) {
|
---|
| 654 | res = pmac->u[i];
|
---|
| 655 | pmac->c[4 * i + 0] = (unsigned char)(res >> 24);
|
---|
| 656 | pmac->c[4 * i + 1] = (unsigned char)(res >> 16);
|
---|
| 657 | pmac->c[4 * i + 2] = (unsigned char)(res >> 8);
|
---|
| 658 | pmac->c[4 * i + 3] = (unsigned char)res;
|
---|
| 659 | }
|
---|
| 660 | # endif
|
---|
| 661 | len += SHA_DIGEST_LENGTH;
|
---|
| 662 | # else
|
---|
| 663 | SHA1_Update(&key->md, out, inp_len);
|
---|
| 664 | res = key->md.num;
|
---|
| 665 | SHA1_Final(pmac->c, &key->md);
|
---|
| 666 |
|
---|
| 667 | {
|
---|
| 668 | unsigned int inp_blocks, pad_blocks;
|
---|
| 669 |
|
---|
| 670 | /* but pretend as if we hashed padded payload */
|
---|
| 671 | inp_blocks =
|
---|
| 672 | 1 + ((SHA_CBLOCK - 9 - res) >> (sizeof(res) * 8 - 1));
|
---|
| 673 | res += (unsigned int)(len - inp_len);
|
---|
| 674 | pad_blocks = res / SHA_CBLOCK;
|
---|
| 675 | res %= SHA_CBLOCK;
|
---|
| 676 | pad_blocks +=
|
---|
| 677 | 1 + ((SHA_CBLOCK - 9 - res) >> (sizeof(res) * 8 - 1));
|
---|
| 678 | for (; inp_blocks < pad_blocks; inp_blocks++)
|
---|
| 679 | sha1_block_data_order(&key->md, data, 1);
|
---|
| 680 | }
|
---|
| 681 | # endif
|
---|
| 682 | key->md = key->tail;
|
---|
| 683 | SHA1_Update(&key->md, pmac->c, SHA_DIGEST_LENGTH);
|
---|
| 684 | SHA1_Final(pmac->c, &key->md);
|
---|
| 685 |
|
---|
| 686 | /* verify HMAC */
|
---|
| 687 | out += inp_len;
|
---|
| 688 | len -= inp_len;
|
---|
| 689 | # if 1
|
---|
| 690 | {
|
---|
| 691 | unsigned char *p = out + len - 1 - maxpad - SHA_DIGEST_LENGTH;
|
---|
| 692 | size_t off = out - p;
|
---|
| 693 | unsigned int c, cmask;
|
---|
| 694 |
|
---|
| 695 | maxpad += SHA_DIGEST_LENGTH;
|
---|
| 696 | for (res = 0, i = 0, j = 0; j < maxpad; j++) {
|
---|
| 697 | c = p[j];
|
---|
| 698 | cmask =
|
---|
| 699 | ((int)(j - off - SHA_DIGEST_LENGTH)) >> (sizeof(int) *
|
---|
| 700 | 8 - 1);
|
---|
| 701 | res |= (c ^ pad) & ~cmask; /* ... and padding */
|
---|
| 702 | cmask &= ((int)(off - 1 - j)) >> (sizeof(int) * 8 - 1);
|
---|
| 703 | res |= (c ^ pmac->c[i]) & cmask;
|
---|
| 704 | i += 1 & cmask;
|
---|
| 705 | }
|
---|
| 706 | maxpad -= SHA_DIGEST_LENGTH;
|
---|
| 707 |
|
---|
| 708 | res = 0 - ((0 - res) >> (sizeof(res) * 8 - 1));
|
---|
| 709 | ret &= (int)~res;
|
---|
| 710 | }
|
---|
| 711 | # else
|
---|
| 712 | for (res = 0, i = 0; i < SHA_DIGEST_LENGTH; i++)
|
---|
| 713 | res |= out[i] ^ pmac->c[i];
|
---|
| 714 | res = 0 - ((0 - res) >> (sizeof(res) * 8 - 1));
|
---|
| 715 | ret &= (int)~res;
|
---|
| 716 |
|
---|
| 717 | /* verify padding */
|
---|
| 718 | pad = (pad & ~res) | (maxpad & res);
|
---|
| 719 | out = out + len - 1 - pad;
|
---|
| 720 | for (res = 0, i = 0; i < pad; i++)
|
---|
| 721 | res |= out[i] ^ pad;
|
---|
| 722 |
|
---|
| 723 | res = (0 - res) >> (sizeof(res) * 8 - 1);
|
---|
| 724 | ret &= (int)~res;
|
---|
| 725 | # endif
|
---|
| 726 | return ret;
|
---|
| 727 | } else {
|
---|
| 728 | # if defined(STITCHED_DECRYPT_CALL)
|
---|
| 729 | if (len >= 1024 && ctx->key_len == 32) {
|
---|
| 730 | if (sha_off %= SHA_CBLOCK)
|
---|
| 731 | blocks = (len - 3 * SHA_CBLOCK) / SHA_CBLOCK;
|
---|
| 732 | else
|
---|
| 733 | blocks = (len - 2 * SHA_CBLOCK) / SHA_CBLOCK;
|
---|
| 734 | aes_off = len - blocks * SHA_CBLOCK;
|
---|
| 735 |
|
---|
| 736 | aesni_cbc_encrypt(in, out, aes_off, &key->ks, ctx->iv, 0);
|
---|
| 737 | SHA1_Update(&key->md, out, sha_off);
|
---|
| 738 | aesni256_cbc_sha1_dec(in + aes_off,
|
---|
| 739 | out + aes_off, blocks, &key->ks,
|
---|
| 740 | ctx->iv, &key->md, out + sha_off);
|
---|
| 741 |
|
---|
| 742 | sha_off += blocks *= SHA_CBLOCK;
|
---|
| 743 | out += sha_off;
|
---|
| 744 | len -= sha_off;
|
---|
| 745 |
|
---|
| 746 | key->md.Nh += blocks >> 29;
|
---|
| 747 | key->md.Nl += blocks <<= 3;
|
---|
| 748 | if (key->md.Nl < (unsigned int)blocks)
|
---|
| 749 | key->md.Nh++;
|
---|
| 750 | } else
|
---|
| 751 | # endif
|
---|
| 752 | /* decrypt HMAC|padding at once */
|
---|
| 753 | aesni_cbc_encrypt(in, out, len, &key->ks,
|
---|
| 754 | EVP_CIPHER_CTX_iv_noconst(ctx), 0);
|
---|
| 755 |
|
---|
| 756 | SHA1_Update(&key->md, out, len);
|
---|
| 757 | }
|
---|
| 758 | }
|
---|
| 759 |
|
---|
| 760 | return 1;
|
---|
| 761 | }
|
---|
| 762 |
|
---|
| 763 | static int aesni_cbc_hmac_sha1_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg,
|
---|
| 764 | void *ptr)
|
---|
| 765 | {
|
---|
| 766 | EVP_AES_HMAC_SHA1 *key = data(ctx);
|
---|
| 767 |
|
---|
| 768 | switch (type) {
|
---|
| 769 | case EVP_CTRL_AEAD_SET_MAC_KEY:
|
---|
| 770 | {
|
---|
| 771 | unsigned int i;
|
---|
| 772 | unsigned char hmac_key[64];
|
---|
| 773 |
|
---|
| 774 | memset(hmac_key, 0, sizeof(hmac_key));
|
---|
| 775 |
|
---|
| 776 | if (arg > (int)sizeof(hmac_key)) {
|
---|
| 777 | SHA1_Init(&key->head);
|
---|
| 778 | SHA1_Update(&key->head, ptr, arg);
|
---|
| 779 | SHA1_Final(hmac_key, &key->head);
|
---|
| 780 | } else {
|
---|
| 781 | memcpy(hmac_key, ptr, arg);
|
---|
| 782 | }
|
---|
| 783 |
|
---|
| 784 | for (i = 0; i < sizeof(hmac_key); i++)
|
---|
| 785 | hmac_key[i] ^= 0x36; /* ipad */
|
---|
| 786 | SHA1_Init(&key->head);
|
---|
| 787 | SHA1_Update(&key->head, hmac_key, sizeof(hmac_key));
|
---|
| 788 |
|
---|
| 789 | for (i = 0; i < sizeof(hmac_key); i++)
|
---|
| 790 | hmac_key[i] ^= 0x36 ^ 0x5c; /* opad */
|
---|
| 791 | SHA1_Init(&key->tail);
|
---|
| 792 | SHA1_Update(&key->tail, hmac_key, sizeof(hmac_key));
|
---|
| 793 |
|
---|
| 794 | OPENSSL_cleanse(hmac_key, sizeof(hmac_key));
|
---|
| 795 |
|
---|
| 796 | return 1;
|
---|
| 797 | }
|
---|
| 798 | case EVP_CTRL_AEAD_TLS1_AAD:
|
---|
| 799 | {
|
---|
| 800 | unsigned char *p = ptr;
|
---|
| 801 | unsigned int len;
|
---|
| 802 |
|
---|
| 803 | if (arg != EVP_AEAD_TLS1_AAD_LEN)
|
---|
| 804 | return -1;
|
---|
| 805 |
|
---|
| 806 | len = p[arg - 2] << 8 | p[arg - 1];
|
---|
| 807 |
|
---|
| 808 | if (EVP_CIPHER_CTX_encrypting(ctx)) {
|
---|
| 809 | key->payload_length = len;
|
---|
| 810 | if ((key->aux.tls_ver =
|
---|
| 811 | p[arg - 4] << 8 | p[arg - 3]) >= TLS1_1_VERSION) {
|
---|
| 812 | len -= AES_BLOCK_SIZE;
|
---|
| 813 | p[arg - 2] = len >> 8;
|
---|
| 814 | p[arg - 1] = len;
|
---|
| 815 | }
|
---|
| 816 | key->md = key->head;
|
---|
| 817 | SHA1_Update(&key->md, p, arg);
|
---|
| 818 |
|
---|
| 819 | return (int)(((len + SHA_DIGEST_LENGTH +
|
---|
| 820 | AES_BLOCK_SIZE) & -AES_BLOCK_SIZE)
|
---|
| 821 | - len);
|
---|
| 822 | } else {
|
---|
| 823 | memcpy(key->aux.tls_aad, ptr, arg);
|
---|
| 824 | key->payload_length = arg;
|
---|
| 825 |
|
---|
| 826 | return SHA_DIGEST_LENGTH;
|
---|
| 827 | }
|
---|
| 828 | }
|
---|
| 829 | # if !defined(OPENSSL_NO_MULTIBLOCK)
|
---|
| 830 | case EVP_CTRL_TLS1_1_MULTIBLOCK_MAX_BUFSIZE:
|
---|
| 831 | return (int)(5 + 16 + ((arg + 20 + 16) & -16));
|
---|
| 832 | case EVP_CTRL_TLS1_1_MULTIBLOCK_AAD:
|
---|
| 833 | {
|
---|
| 834 | EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM *param =
|
---|
| 835 | (EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM *) ptr;
|
---|
| 836 | unsigned int n4x = 1, x4;
|
---|
| 837 | unsigned int frag, last, packlen, inp_len;
|
---|
| 838 |
|
---|
| 839 | if (arg < (int)sizeof(EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM))
|
---|
| 840 | return -1;
|
---|
| 841 |
|
---|
| 842 | inp_len = param->inp[11] << 8 | param->inp[12];
|
---|
| 843 |
|
---|
| 844 | if (EVP_CIPHER_CTX_encrypting(ctx)) {
|
---|
| 845 | if ((param->inp[9] << 8 | param->inp[10]) < TLS1_1_VERSION)
|
---|
| 846 | return -1;
|
---|
| 847 |
|
---|
| 848 | if (inp_len) {
|
---|
| 849 | if (inp_len < 4096)
|
---|
| 850 | return 0; /* too short */
|
---|
| 851 |
|
---|
| 852 | if (inp_len >= 8192 && OPENSSL_ia32cap_P[2] & (1 << 5))
|
---|
| 853 | n4x = 2; /* AVX2 */
|
---|
| 854 | } else if ((n4x = param->interleave / 4) && n4x <= 2)
|
---|
| 855 | inp_len = param->len;
|
---|
| 856 | else
|
---|
| 857 | return -1;
|
---|
| 858 |
|
---|
| 859 | key->md = key->head;
|
---|
| 860 | SHA1_Update(&key->md, param->inp, 13);
|
---|
| 861 |
|
---|
| 862 | x4 = 4 * n4x;
|
---|
| 863 | n4x += 1;
|
---|
| 864 |
|
---|
| 865 | frag = inp_len >> n4x;
|
---|
| 866 | last = inp_len + frag - (frag << n4x);
|
---|
| 867 | if (last > frag && ((last + 13 + 9) % 64 < (x4 - 1))) {
|
---|
| 868 | frag++;
|
---|
| 869 | last -= x4 - 1;
|
---|
| 870 | }
|
---|
| 871 |
|
---|
| 872 | packlen = 5 + 16 + ((frag + 20 + 16) & -16);
|
---|
| 873 | packlen = (packlen << n4x) - packlen;
|
---|
| 874 | packlen += 5 + 16 + ((last + 20 + 16) & -16);
|
---|
| 875 |
|
---|
| 876 | param->interleave = x4;
|
---|
| 877 |
|
---|
| 878 | return (int)packlen;
|
---|
| 879 | } else
|
---|
| 880 | return -1; /* not yet */
|
---|
| 881 | }
|
---|
| 882 | case EVP_CTRL_TLS1_1_MULTIBLOCK_ENCRYPT:
|
---|
| 883 | {
|
---|
| 884 | EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM *param =
|
---|
| 885 | (EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM *) ptr;
|
---|
| 886 |
|
---|
| 887 | return (int)tls1_1_multi_block_encrypt(key, param->out,
|
---|
| 888 | param->inp, param->len,
|
---|
| 889 | param->interleave / 4);
|
---|
| 890 | }
|
---|
| 891 | case EVP_CTRL_TLS1_1_MULTIBLOCK_DECRYPT:
|
---|
| 892 | # endif
|
---|
| 893 | default:
|
---|
| 894 | return -1;
|
---|
| 895 | }
|
---|
| 896 | }
|
---|
| 897 |
|
---|
| 898 | static EVP_CIPHER aesni_128_cbc_hmac_sha1_cipher = {
|
---|
| 899 | # ifdef NID_aes_128_cbc_hmac_sha1
|
---|
| 900 | NID_aes_128_cbc_hmac_sha1,
|
---|
| 901 | # else
|
---|
| 902 | NID_undef,
|
---|
| 903 | # endif
|
---|
| 904 | AES_BLOCK_SIZE, 16, AES_BLOCK_SIZE,
|
---|
| 905 | EVP_CIPH_CBC_MODE | EVP_CIPH_FLAG_DEFAULT_ASN1 |
|
---|
| 906 | EVP_CIPH_FLAG_AEAD_CIPHER | EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK,
|
---|
| 907 | aesni_cbc_hmac_sha1_init_key,
|
---|
| 908 | aesni_cbc_hmac_sha1_cipher,
|
---|
| 909 | NULL,
|
---|
| 910 | sizeof(EVP_AES_HMAC_SHA1),
|
---|
| 911 | EVP_CIPH_FLAG_DEFAULT_ASN1 ? NULL : EVP_CIPHER_set_asn1_iv,
|
---|
| 912 | EVP_CIPH_FLAG_DEFAULT_ASN1 ? NULL : EVP_CIPHER_get_asn1_iv,
|
---|
| 913 | aesni_cbc_hmac_sha1_ctrl,
|
---|
| 914 | NULL
|
---|
| 915 | };
|
---|
| 916 |
|
---|
| 917 | static EVP_CIPHER aesni_256_cbc_hmac_sha1_cipher = {
|
---|
| 918 | # ifdef NID_aes_256_cbc_hmac_sha1
|
---|
| 919 | NID_aes_256_cbc_hmac_sha1,
|
---|
| 920 | # else
|
---|
| 921 | NID_undef,
|
---|
| 922 | # endif
|
---|
| 923 | AES_BLOCK_SIZE, 32, AES_BLOCK_SIZE,
|
---|
| 924 | EVP_CIPH_CBC_MODE | EVP_CIPH_FLAG_DEFAULT_ASN1 |
|
---|
| 925 | EVP_CIPH_FLAG_AEAD_CIPHER | EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK,
|
---|
| 926 | aesni_cbc_hmac_sha1_init_key,
|
---|
| 927 | aesni_cbc_hmac_sha1_cipher,
|
---|
| 928 | NULL,
|
---|
| 929 | sizeof(EVP_AES_HMAC_SHA1),
|
---|
| 930 | EVP_CIPH_FLAG_DEFAULT_ASN1 ? NULL : EVP_CIPHER_set_asn1_iv,
|
---|
| 931 | EVP_CIPH_FLAG_DEFAULT_ASN1 ? NULL : EVP_CIPHER_get_asn1_iv,
|
---|
| 932 | aesni_cbc_hmac_sha1_ctrl,
|
---|
| 933 | NULL
|
---|
| 934 | };
|
---|
| 935 |
|
---|
| 936 | const EVP_CIPHER *EVP_aes_128_cbc_hmac_sha1(void)
|
---|
| 937 | {
|
---|
| 938 | return (OPENSSL_ia32cap_P[1] & AESNI_CAPABLE ?
|
---|
| 939 | &aesni_128_cbc_hmac_sha1_cipher : NULL);
|
---|
| 940 | }
|
---|
| 941 |
|
---|
| 942 | const EVP_CIPHER *EVP_aes_256_cbc_hmac_sha1(void)
|
---|
| 943 | {
|
---|
| 944 | return (OPENSSL_ia32cap_P[1] & AESNI_CAPABLE ?
|
---|
| 945 | &aesni_256_cbc_hmac_sha1_cipher : NULL);
|
---|
| 946 | }
|
---|
| 947 | #else
|
---|
| 948 | const EVP_CIPHER *EVP_aes_128_cbc_hmac_sha1(void)
|
---|
| 949 | {
|
---|
| 950 | return NULL;
|
---|
| 951 | }
|
---|
| 952 |
|
---|
| 953 | const EVP_CIPHER *EVP_aes_256_cbc_hmac_sha1(void)
|
---|
| 954 | {
|
---|
| 955 | return NULL;
|
---|
| 956 | }
|
---|
| 957 | #endif
|
---|