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Diffstat (limited to 'src/main/jni/aes/aes_ige.c')
-rw-r--r-- | src/main/jni/aes/aes_ige.c | 325 |
1 files changed, 0 insertions, 325 deletions
diff --git a/src/main/jni/aes/aes_ige.c b/src/main/jni/aes/aes_ige.c deleted file mode 100644 index f48f1f9f5..000000000 --- a/src/main/jni/aes/aes_ige.c +++ /dev/null @@ -1,325 +0,0 @@ -/* crypto/aes/aes_ige.c -*- mode:C; c-file-style: "eay" -*- */ -/* ==================================================================== - * Copyright (c) 2006 The OpenSSL Project. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. All advertising materials mentioning features or use of this - * software must display the following acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" - * - * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to - * endorse or promote products derived from this software without - * prior written permission. For written permission, please contact - * openssl-core@openssl.org. - * - * 5. Products derived from this software may not be called "OpenSSL" - * nor may "OpenSSL" appear in their names without prior written - * permission of the OpenSSL Project. - * - * 6. Redistributions of any form whatsoever must retain the following - * acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit (http://www.openssl.org/)" - * - * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY - * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR - * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED - * OF THE POSSIBILITY OF SUCH DAMAGE. - * ==================================================================== - * - */ - -//#include "cryptlib.h" - -#include "aes.h" -#include "aes_locl.h" -#include <assert.h> -#define OPENSSL_assert assert - -#define N_WORDS (AES_BLOCK_SIZE / sizeof(unsigned long)) -typedef struct { - unsigned long data[N_WORDS]; -} aes_block_t; - -/* XXX: probably some better way to do this */ -#if defined(__i386__) || defined(__x86_64__) -#define UNALIGNED_MEMOPS_ARE_FAST 1 -#else -#define UNALIGNED_MEMOPS_ARE_FAST 0 -#endif - -#if UNALIGNED_MEMOPS_ARE_FAST -#define load_block(d, s) (d) = *(const aes_block_t *)(s) -#define store_block(d, s) *(aes_block_t *)(d) = (s) -#else -#define load_block(d, s) memcpy((d).data, (s), AES_BLOCK_SIZE) -#define store_block(d, s) memcpy((d), (s).data, AES_BLOCK_SIZE) -#endif - -/* N.B. The IV for this mode is _twice_ the block size */ - -void AES_ige_encrypt(const unsigned char *in, unsigned char *out, - size_t length, const AES_KEY *key, - unsigned char *ivec, const int enc) - { - size_t n; - size_t len = length; - - OPENSSL_assert(in && out && key && ivec); - OPENSSL_assert((AES_ENCRYPT == enc)||(AES_DECRYPT == enc)); - OPENSSL_assert((length%AES_BLOCK_SIZE) == 0); - - len = length / AES_BLOCK_SIZE; - - if (AES_ENCRYPT == enc) - { - if (in != out && - (UNALIGNED_MEMOPS_ARE_FAST || ((size_t)in|(size_t)out|(size_t)ivec)%sizeof(long)==0)) - { - aes_block_t *ivp = (aes_block_t *)ivec; - aes_block_t *iv2p = (aes_block_t *)(ivec + AES_BLOCK_SIZE); - - while (len) - { - aes_block_t *inp = (aes_block_t *)in; - aes_block_t *outp = (aes_block_t *)out; - - for(n=0 ; n < N_WORDS; ++n) - outp->data[n] = inp->data[n] ^ ivp->data[n]; - AES_encrypt((unsigned char *)outp->data, (unsigned char *)outp->data, key); - for(n=0 ; n < N_WORDS; ++n) - outp->data[n] ^= iv2p->data[n]; - ivp = outp; - iv2p = inp; - --len; - in += AES_BLOCK_SIZE; - out += AES_BLOCK_SIZE; - } - memcpy(ivec, ivp->data, AES_BLOCK_SIZE); - memcpy(ivec + AES_BLOCK_SIZE, iv2p->data, AES_BLOCK_SIZE); - } - else - { - aes_block_t tmp, tmp2; - aes_block_t iv; - aes_block_t iv2; - - load_block(iv, ivec); - load_block(iv2, ivec + AES_BLOCK_SIZE); - - while (len) - { - load_block(tmp, in); - for(n=0 ; n < N_WORDS; ++n) - tmp2.data[n] = tmp.data[n] ^ iv.data[n]; - AES_encrypt((unsigned char *)tmp2.data, (unsigned char *)tmp2.data, key); - for(n=0 ; n < N_WORDS; ++n) - tmp2.data[n] ^= iv2.data[n]; - store_block(out, tmp2); - iv = tmp2; - iv2 = tmp; - --len; - in += AES_BLOCK_SIZE; - out += AES_BLOCK_SIZE; - } - memcpy(ivec, iv.data, AES_BLOCK_SIZE); - memcpy(ivec + AES_BLOCK_SIZE, iv2.data, AES_BLOCK_SIZE); - } - } - else - { - if (in != out && - (UNALIGNED_MEMOPS_ARE_FAST || ((size_t)in|(size_t)out|(size_t)ivec)%sizeof(long)==0)) - { - aes_block_t *ivp = (aes_block_t *)ivec; - aes_block_t *iv2p = (aes_block_t *)(ivec + AES_BLOCK_SIZE); - - while (len) - { - aes_block_t tmp; - aes_block_t *inp = (aes_block_t *)in; - aes_block_t *outp = (aes_block_t *)out; - - for(n=0 ; n < N_WORDS; ++n) - tmp.data[n] = inp->data[n] ^ iv2p->data[n]; - AES_decrypt((unsigned char *)tmp.data, (unsigned char *)outp->data, key); - for(n=0 ; n < N_WORDS; ++n) - outp->data[n] ^= ivp->data[n]; - ivp = inp; - iv2p = outp; - --len; - in += AES_BLOCK_SIZE; - out += AES_BLOCK_SIZE; - } - memcpy(ivec, ivp->data, AES_BLOCK_SIZE); - memcpy(ivec + AES_BLOCK_SIZE, iv2p->data, AES_BLOCK_SIZE); - } - else - { - aes_block_t tmp, tmp2; - aes_block_t iv; - aes_block_t iv2; - - load_block(iv, ivec); - load_block(iv2, ivec + AES_BLOCK_SIZE); - - while (len) - { - load_block(tmp, in); - tmp2 = tmp; - for(n=0 ; n < N_WORDS; ++n) - tmp.data[n] ^= iv2.data[n]; - AES_decrypt((unsigned char *)tmp.data, (unsigned char *)tmp.data, key); - for(n=0 ; n < N_WORDS; ++n) - tmp.data[n] ^= iv.data[n]; - store_block(out, tmp); - iv = tmp2; - iv2 = tmp; - --len; - in += AES_BLOCK_SIZE; - out += AES_BLOCK_SIZE; - } - memcpy(ivec, iv.data, AES_BLOCK_SIZE); - memcpy(ivec + AES_BLOCK_SIZE, iv2.data, AES_BLOCK_SIZE); - } - } - } - -/* - * Note that its effectively impossible to do biIGE in anything other - * than a single pass, so no provision is made for chaining. - */ - -/* N.B. The IV for this mode is _four times_ the block size */ - -void AES_bi_ige_encrypt(const unsigned char *in, unsigned char *out, - size_t length, const AES_KEY *key, - const AES_KEY *key2, const unsigned char *ivec, - const int enc) - { - size_t n; - size_t len = length; - unsigned char tmp[AES_BLOCK_SIZE]; - unsigned char tmp2[AES_BLOCK_SIZE]; - unsigned char tmp3[AES_BLOCK_SIZE]; - unsigned char prev[AES_BLOCK_SIZE]; - const unsigned char *iv; - const unsigned char *iv2; - - OPENSSL_assert(in && out && key && ivec); - OPENSSL_assert((AES_ENCRYPT == enc)||(AES_DECRYPT == enc)); - OPENSSL_assert((length%AES_BLOCK_SIZE) == 0); - - if (AES_ENCRYPT == enc) - { - /* XXX: Do a separate case for when in != out (strictly should - check for overlap, too) */ - - /* First the forward pass */ - iv = ivec; - iv2 = ivec + AES_BLOCK_SIZE; - while (len >= AES_BLOCK_SIZE) - { - for(n=0 ; n < AES_BLOCK_SIZE ; ++n) - out[n] = in[n] ^ iv[n]; - AES_encrypt(out, out, key); - for(n=0 ; n < AES_BLOCK_SIZE ; ++n) - out[n] ^= iv2[n]; - iv = out; - memcpy(prev, in, AES_BLOCK_SIZE); - iv2 = prev; - len -= AES_BLOCK_SIZE; - in += AES_BLOCK_SIZE; - out += AES_BLOCK_SIZE; - } - - /* And now backwards */ - iv = ivec + AES_BLOCK_SIZE*2; - iv2 = ivec + AES_BLOCK_SIZE*3; - len = length; - while(len >= AES_BLOCK_SIZE) - { - out -= AES_BLOCK_SIZE; - /* XXX: reduce copies by alternating between buffers */ - memcpy(tmp, out, AES_BLOCK_SIZE); - for(n=0 ; n < AES_BLOCK_SIZE ; ++n) - out[n] ^= iv[n]; - /* hexdump(stdout, "out ^ iv", out, AES_BLOCK_SIZE); */ - AES_encrypt(out, out, key); - /* hexdump(stdout,"enc", out, AES_BLOCK_SIZE); */ - /* hexdump(stdout,"iv2", iv2, AES_BLOCK_SIZE); */ - for(n=0 ; n < AES_BLOCK_SIZE ; ++n) - out[n] ^= iv2[n]; - /* hexdump(stdout,"out", out, AES_BLOCK_SIZE); */ - iv = out; - memcpy(prev, tmp, AES_BLOCK_SIZE); - iv2 = prev; - len -= AES_BLOCK_SIZE; - } - } - else - { - /* First backwards */ - iv = ivec + AES_BLOCK_SIZE*2; - iv2 = ivec + AES_BLOCK_SIZE*3; - in += length; - out += length; - while (len >= AES_BLOCK_SIZE) - { - in -= AES_BLOCK_SIZE; - out -= AES_BLOCK_SIZE; - memcpy(tmp, in, AES_BLOCK_SIZE); - memcpy(tmp2, in, AES_BLOCK_SIZE); - for(n=0 ; n < AES_BLOCK_SIZE ; ++n) - tmp[n] ^= iv2[n]; - AES_decrypt(tmp, out, key); - for(n=0 ; n < AES_BLOCK_SIZE ; ++n) - out[n] ^= iv[n]; - memcpy(tmp3, tmp2, AES_BLOCK_SIZE); - iv = tmp3; - iv2 = out; - len -= AES_BLOCK_SIZE; - } - - /* And now forwards */ - iv = ivec; - iv2 = ivec + AES_BLOCK_SIZE; - len = length; - while (len >= AES_BLOCK_SIZE) - { - memcpy(tmp, out, AES_BLOCK_SIZE); - memcpy(tmp2, out, AES_BLOCK_SIZE); - for(n=0 ; n < AES_BLOCK_SIZE ; ++n) - tmp[n] ^= iv2[n]; - AES_decrypt(tmp, out, key); - for(n=0 ; n < AES_BLOCK_SIZE ; ++n) - out[n] ^= iv[n]; - memcpy(tmp3, tmp2, AES_BLOCK_SIZE); - iv = tmp3; - iv2 = out; - len -= AES_BLOCK_SIZE; - in += AES_BLOCK_SIZE; - out += AES_BLOCK_SIZE; - } - } - } |