1 /* ====================================================================
2 * Copyright (c) 2000 The OpenSSL Project. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in
13 * the documentation and/or other materials provided with the
16 * 3. All advertising materials mentioning features or use of this
17 * software must display the following acknowledgment:
18 * "This product includes software developed by the OpenSSL Project
19 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
21 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
22 * endorse or promote products derived from this software without
23 * prior written permission. For written permission, please contact
24 * openssl-core@openssl.org.
26 * 5. Products derived from this software may not be called "OpenSSL"
27 * nor may "OpenSSL" appear in their names without prior written
28 * permission of the OpenSSL Project.
30 * 6. Redistributions of any form whatsoever must retain the following
32 * "This product includes software developed by the OpenSSL Project
33 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
35 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
36 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
37 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
38 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
39 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
41 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
42 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
43 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
44 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
45 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
46 * OF THE POSSIBILITY OF SUCH DAMAGE.
47 * ====================================================================
51 #include <openssl/evp.h>
52 #include <openssl/err.h>
56 static EVP_CIPHER rd_cipher[3][3];
58 static int anSizes[]={16,24,32};
59 static int anNIDs[3][3]=
61 { NID_rijndael_ecb_k128_b128,NID_rijndael_ecb_k192_b128,NID_rijndael_ecb_k256_b128 },
62 { NID_rijndael_ecb_k128_b192,NID_rijndael_ecb_k192_b192,NID_rijndael_ecb_k256_b192 },
63 { NID_rijndael_ecb_k128_b256,NID_rijndael_ecb_k192_b256,NID_rijndael_ecb_k256_b256 }
66 static int rd_init_ecb(EVP_CIPHER_CTX *ctx, const unsigned char *key,
67 const unsigned char *iv, int enc)
69 RIJNDAEL_KEY *k=&ctx->c.rijndael;
72 k->rounds=ctx->cipher->key_len/4+6;
73 rijndaelKeySched((const word8 (*)[4])key,k->keySched,k->rounds);
75 rijndaelKeyEncToDec(k->keySched,k->rounds);
76 memcpy(k->iv,iv,ctx->cipher->iv_len);
81 static int rd_cipher_ecb(EVP_CIPHER_CTX *ctx, unsigned char *out,
82 const unsigned char *in, unsigned int inl)
86 if(ctx->c.rijndael.enc)
87 rijndaelEncrypt(in,out,ctx->c.rijndael.keySched,
88 ctx->c.rijndael.rounds);
90 rijndaelDecrypt(in,out,ctx->c.rijndael.keySched,
91 ctx->c.rijndael.rounds);
101 EVP_CIPHER *EVP_rijndael_ecb(int nBlockLength,int nKeyLength)
105 if(nBlockLength < 0 || nBlockLength > 2)
107 EVPerr(EVP_F_EVP_RIJNDAEL,EVP_R_BAD_BLOCK_LENGTH);
110 if(nKeyLength < 0 || nKeyLength > 2)
112 EVPerr(EVP_F_EVP_RIJNDAEL,EVP_R_BAD_KEY_LENGTH);
116 c=&rd_cipher[nKeyLength][nBlockLength];
118 memset(c,'\0',sizeof *c);
120 c->nid=anNIDs[nBlockLength][nKeyLength];
121 c->block_size=anSizes[nBlockLength];
122 c->key_len=anSizes[nKeyLength];
124 c->flags=EVP_CIPH_ECB_MODE;
126 c->do_cipher=rd_cipher_ecb;
127 c->ctx_size=sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+
128 sizeof((((EVP_CIPHER_CTX *)NULL)->c.rijndael));