1 /* 2 * Copyright 2019-2020 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 /* 11 * IDEA low level APIs are deprecated for public use, but still ok for internal 12 * use where we're using them to implement the higher level EVP interface, as is 13 * the case here. 14 */ 15 #include "internal/deprecated.h" 16 17 #include "cipher_idea.h" 18 19 static int cipher_hw_idea_initkey(PROV_CIPHER_CTX *ctx, 20 const unsigned char *key, size_t keylen) 21 { 22 PROV_IDEA_CTX *ictx = (PROV_IDEA_CTX *)ctx; 23 IDEA_KEY_SCHEDULE *ks = &(ictx->ks.ks); 24 25 if (ctx->enc 26 || ctx->mode == EVP_CIPH_OFB_MODE 27 || ctx->mode == EVP_CIPH_CFB_MODE) { 28 IDEA_set_encrypt_key(key, ks); 29 } else { 30 IDEA_KEY_SCHEDULE tmp; 31 32 IDEA_set_encrypt_key(key, &tmp); 33 IDEA_set_decrypt_key(&tmp, ks); 34 OPENSSL_cleanse((unsigned char *)&tmp, sizeof(IDEA_KEY_SCHEDULE)); 35 } 36 return 1; 37 } 38 39 # define PROV_CIPHER_HW_idea_mode_ex(mode, UCMODE, fname) \ 40 IMPLEMENT_CIPHER_HW_##UCMODE(mode, idea, PROV_IDEA_CTX, IDEA_KEY_SCHEDULE, \ 41 fname) \ 42 static const PROV_CIPHER_HW idea_##mode = { \ 43 cipher_hw_idea_initkey, \ 44 cipher_hw_idea_##mode##_cipher \ 45 }; \ 46 const PROV_CIPHER_HW *ossl_prov_cipher_hw_idea_##mode(size_t keybits) \ 47 { \ 48 return &idea_##mode; \ 49 } 50 51 # define PROV_CIPHER_HW_idea_mode(mode, UCMODE) \ 52 PROV_CIPHER_HW_idea_mode_ex(mode, UCMODE, IDEA_##mode) 53 54 PROV_CIPHER_HW_idea_mode(cbc, CBC) 55 PROV_CIPHER_HW_idea_mode(ofb64, OFB) 56 PROV_CIPHER_HW_idea_mode(cfb64, CFB) 57 /* 58 * IDEA_ecb_encrypt() does not have a enc parameter - so we create a macro 59 * that ignores this parameter when IMPLEMENT_CIPHER_HW_ecb() is called. 60 */ 61 #define IDEA2_ecb_encrypt(in, out, ks, enc) IDEA_ecb_encrypt(in, out, ks) 62 63 PROV_CIPHER_HW_idea_mode_ex(ecb, ECB, IDEA2_ecb) 64