| 1 | /*
|
|---|
| 2 | * Copyright 2019-2022 The OpenSSL Project Authors. All Rights Reserved.
|
|---|
| 3 | *
|
|---|
| 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use
|
|---|
| 5 | * this file except in compliance with the License. You can obtain a copy
|
|---|
| 6 | * in the file LICENSE in the source distribution or at
|
|---|
| 7 | * https://www.openssl.org/source/license.html
|
|---|
| 8 | */
|
|---|
| 9 |
|
|---|
| 10 | #include "cipher_sm4.h"
|
|---|
| 11 |
|
|---|
| 12 | static int cipher_hw_sm4_initkey(PROV_CIPHER_CTX *ctx,
|
|---|
| 13 | const unsigned char *key, size_t keylen)
|
|---|
| 14 | {
|
|---|
| 15 | PROV_SM4_CTX *sctx = (PROV_SM4_CTX *)ctx;
|
|---|
| 16 | SM4_KEY *ks = &sctx->ks.ks;
|
|---|
| 17 |
|
|---|
| 18 | ctx->ks = ks;
|
|---|
| 19 | if (ctx->enc
|
|---|
| 20 | || (ctx->mode != EVP_CIPH_ECB_MODE
|
|---|
| 21 | && ctx->mode != EVP_CIPH_CBC_MODE)) {
|
|---|
| 22 | #ifdef HWSM4_CAPABLE
|
|---|
| 23 | if (HWSM4_CAPABLE) {
|
|---|
| 24 | HWSM4_set_encrypt_key(key, ks);
|
|---|
| 25 | ctx->block = (block128_f)HWSM4_encrypt;
|
|---|
| 26 | ctx->stream.cbc = NULL;
|
|---|
| 27 | #ifdef HWSM4_cbc_encrypt
|
|---|
| 28 | if (ctx->mode == EVP_CIPH_CBC_MODE)
|
|---|
| 29 | ctx->stream.cbc = (cbc128_f)HWSM4_cbc_encrypt;
|
|---|
| 30 | else
|
|---|
| 31 | #endif
|
|---|
| 32 | #ifdef HWSM4_ecb_encrypt
|
|---|
| 33 | if (ctx->mode == EVP_CIPH_ECB_MODE)
|
|---|
| 34 | ctx->stream.ecb = (ecb128_f)HWSM4_ecb_encrypt;
|
|---|
| 35 | else
|
|---|
| 36 | #endif
|
|---|
| 37 | #ifdef HWSM4_ctr32_encrypt_blocks
|
|---|
| 38 | if (ctx->mode == EVP_CIPH_CTR_MODE)
|
|---|
| 39 | ctx->stream.ctr = (ctr128_f)HWSM4_ctr32_encrypt_blocks;
|
|---|
| 40 | else
|
|---|
| 41 | #endif
|
|---|
| 42 | (void)0; /* terminate potentially open 'else' */
|
|---|
| 43 | } else
|
|---|
| 44 | #endif
|
|---|
| 45 | #ifdef VPSM4_CAPABLE
|
|---|
| 46 | if (VPSM4_CAPABLE) {
|
|---|
| 47 | vpsm4_set_encrypt_key(key, ks);
|
|---|
| 48 | ctx->block = (block128_f)vpsm4_encrypt;
|
|---|
| 49 | ctx->stream.cbc = NULL;
|
|---|
| 50 | if (ctx->mode == EVP_CIPH_CBC_MODE)
|
|---|
| 51 | ctx->stream.cbc = (cbc128_f)vpsm4_cbc_encrypt;
|
|---|
| 52 | else if (ctx->mode == EVP_CIPH_ECB_MODE)
|
|---|
| 53 | ctx->stream.ecb = (ecb128_f)vpsm4_ecb_encrypt;
|
|---|
| 54 | else if (ctx->mode == EVP_CIPH_CTR_MODE)
|
|---|
| 55 | ctx->stream.ctr = (ctr128_f)vpsm4_ctr32_encrypt_blocks;
|
|---|
| 56 | } else
|
|---|
| 57 | #endif
|
|---|
| 58 | {
|
|---|
| 59 | ossl_sm4_set_key(key, ks);
|
|---|
| 60 | ctx->block = (block128_f)ossl_sm4_encrypt;
|
|---|
| 61 | }
|
|---|
| 62 | } else {
|
|---|
| 63 | #ifdef HWSM4_CAPABLE
|
|---|
| 64 | if (HWSM4_CAPABLE) {
|
|---|
| 65 | HWSM4_set_decrypt_key(key, ks);
|
|---|
| 66 | ctx->block = (block128_f)HWSM4_decrypt;
|
|---|
| 67 | ctx->stream.cbc = NULL;
|
|---|
| 68 | #ifdef HWSM4_cbc_encrypt
|
|---|
| 69 | if (ctx->mode == EVP_CIPH_CBC_MODE)
|
|---|
| 70 | ctx->stream.cbc = (cbc128_f)HWSM4_cbc_encrypt;
|
|---|
| 71 | #endif
|
|---|
| 72 | #ifdef HWSM4_ecb_encrypt
|
|---|
| 73 | if (ctx->mode == EVP_CIPH_ECB_MODE)
|
|---|
| 74 | ctx->stream.ecb = (ecb128_f)HWSM4_ecb_encrypt;
|
|---|
| 75 | #endif
|
|---|
| 76 | } else
|
|---|
| 77 | #endif
|
|---|
| 78 | #ifdef VPSM4_CAPABLE
|
|---|
| 79 | if (VPSM4_CAPABLE) {
|
|---|
| 80 | vpsm4_set_decrypt_key(key, ks);
|
|---|
| 81 | ctx->block = (block128_f)vpsm4_decrypt;
|
|---|
| 82 | ctx->stream.cbc = NULL;
|
|---|
| 83 | if (ctx->mode == EVP_CIPH_CBC_MODE)
|
|---|
| 84 | ctx->stream.cbc = (cbc128_f)vpsm4_cbc_encrypt;
|
|---|
| 85 | else if (ctx->mode == EVP_CIPH_ECB_MODE)
|
|---|
| 86 | ctx->stream.ecb = (ecb128_f)vpsm4_ecb_encrypt;
|
|---|
| 87 | } else
|
|---|
| 88 | #endif
|
|---|
| 89 | {
|
|---|
| 90 | ossl_sm4_set_key(key, ks);
|
|---|
| 91 | ctx->block = (block128_f)ossl_sm4_decrypt;
|
|---|
| 92 | }
|
|---|
| 93 | }
|
|---|
| 94 |
|
|---|
| 95 | return 1;
|
|---|
| 96 | }
|
|---|
| 97 |
|
|---|
| 98 | IMPLEMENT_CIPHER_HW_COPYCTX(cipher_hw_sm4_copyctx, PROV_SM4_CTX)
|
|---|
| 99 |
|
|---|
| 100 | # define PROV_CIPHER_HW_sm4_mode(mode) \
|
|---|
| 101 | static const PROV_CIPHER_HW sm4_##mode = { \
|
|---|
| 102 | cipher_hw_sm4_initkey, \
|
|---|
| 103 | ossl_cipher_hw_generic_##mode, \
|
|---|
| 104 | cipher_hw_sm4_copyctx \
|
|---|
| 105 | }; \
|
|---|
| 106 | const PROV_CIPHER_HW *ossl_prov_cipher_hw_sm4_##mode(size_t keybits) \
|
|---|
| 107 | { \
|
|---|
| 108 | return &sm4_##mode; \
|
|---|
| 109 | }
|
|---|
| 110 |
|
|---|
| 111 | PROV_CIPHER_HW_sm4_mode(cbc)
|
|---|
| 112 | PROV_CIPHER_HW_sm4_mode(ecb)
|
|---|
| 113 | PROV_CIPHER_HW_sm4_mode(ofb128)
|
|---|
| 114 | PROV_CIPHER_HW_sm4_mode(cfb128)
|
|---|
| 115 | PROV_CIPHER_HW_sm4_mode(ctr)
|
|---|
