diff options
Diffstat (limited to 'sys/netinet6/ah_aesxcbcmac.c')
| -rw-r--r-- | sys/netinet6/ah_aesxcbcmac.c | 190 |
1 files changed, 0 insertions, 190 deletions
diff --git a/sys/netinet6/ah_aesxcbcmac.c b/sys/netinet6/ah_aesxcbcmac.c deleted file mode 100644 index 3c83d330c08c9..0000000000000 --- a/sys/netinet6/ah_aesxcbcmac.c +++ /dev/null @@ -1,190 +0,0 @@ -/* $KAME: ah_aesxcbcmac.c,v 1.6 2003/07/22 02:30:54 itojun Exp $ */ - -/*- - * Copyright (C) 1995, 1996, 1997, 1998 and 2003 WIDE 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. Neither the name of the project nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS 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 PROJECT OR 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. - * - * $FreeBSD$ - */ - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/socket.h> -#include <sys/queue.h> -#include <sys/malloc.h> -#include <sys/syslog.h> -#include <sys/mbuf.h> - -#include <net/if.h> -#include <net/route.h> - -#include <netinet/in.h> - -#include <netinet6/ipsec.h> -#include <netinet6/ah.h> -#include <netinet6/ah_aesxcbcmac.h> - -#include <netkey/key.h> - -#include <crypto/rijndael/rijndael.h> - -#define AES_BLOCKSIZE 16 - -typedef struct { - u_int8_t e[AES_BLOCKSIZE]; - u_int8_t buf[AES_BLOCKSIZE]; - size_t buflen; - u_int32_t r_k1s[(RIJNDAEL_MAXNR+1)*4]; - u_int32_t r_k2s[(RIJNDAEL_MAXNR+1)*4]; - u_int32_t r_k3s[(RIJNDAEL_MAXNR+1)*4]; - int r_nr; /* key-length-dependent number of rounds */ - u_int8_t k2[AES_BLOCKSIZE]; - u_int8_t k3[AES_BLOCKSIZE]; -} aesxcbc_ctx; - -int -ah_aes_xcbc_mac_init(state, sav) - struct ah_algorithm_state *state; - struct secasvar *sav; -{ - u_int8_t k1seed[AES_BLOCKSIZE] = { 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 }; - u_int8_t k2seed[AES_BLOCKSIZE] = { 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2 }; - u_int8_t k3seed[AES_BLOCKSIZE] = { 3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3 }; - u_int32_t r_ks[(RIJNDAEL_MAXNR+1)*4]; - aesxcbc_ctx *ctx; - u_int8_t k1[AES_BLOCKSIZE]; - - if (!state) - panic("ah_aes_xcbc_mac_init: what?"); - - state->sav = sav; - state->foo = (void *)malloc(sizeof(aesxcbc_ctx), M_TEMP, M_NOWAIT); - if (!state->foo) - return ENOBUFS; - bzero(state->foo, sizeof(aesxcbc_ctx)); - - ctx = (aesxcbc_ctx *)state->foo; - - if ((ctx->r_nr = rijndaelKeySetupEnc(r_ks, - (char *)_KEYBUF(sav->key_auth), AES_BLOCKSIZE * 8)) == 0) - return -1; - rijndaelEncrypt(r_ks, ctx->r_nr, k1seed, k1); - rijndaelEncrypt(r_ks, ctx->r_nr, k2seed, ctx->k2); - rijndaelEncrypt(r_ks, ctx->r_nr, k3seed, ctx->k3); - if (rijndaelKeySetupEnc(ctx->r_k1s, k1, AES_BLOCKSIZE * 8) == 0) - return -1; - if (rijndaelKeySetupEnc(ctx->r_k2s, ctx->k2, AES_BLOCKSIZE * 8) == 0) - return -1; - if (rijndaelKeySetupEnc(ctx->r_k3s, ctx->k3, AES_BLOCKSIZE * 8) == 0) - return -1; - - return 0; -} - -void -ah_aes_xcbc_mac_loop(state, addr, len) - struct ah_algorithm_state *state; - u_int8_t *addr; - size_t len; -{ - u_int8_t buf[AES_BLOCKSIZE]; - aesxcbc_ctx *ctx; - u_int8_t *ep; - int i; - - if (!state || !state->foo) - panic("ah_aes_xcbc_mac_loop: what?"); - - ctx = (aesxcbc_ctx *)state->foo; - ep = addr + len; - - if (ctx->buflen == sizeof(ctx->buf)) { - for (i = 0; i < sizeof(ctx->e); i++) - ctx->buf[i] ^= ctx->e[i]; - rijndaelEncrypt(ctx->r_k1s, ctx->r_nr, ctx->buf, ctx->e); - ctx->buflen = 0; - } - if (ctx->buflen + len < sizeof(ctx->buf)) { - bcopy(addr, ctx->buf + ctx->buflen, len); - ctx->buflen += len; - return; - } - if (ctx->buflen && ctx->buflen + len > sizeof(ctx->buf)) { - bcopy(addr, ctx->buf + ctx->buflen, - sizeof(ctx->buf) - ctx->buflen); - for (i = 0; i < sizeof(ctx->e); i++) - ctx->buf[i] ^= ctx->e[i]; - rijndaelEncrypt(ctx->r_k1s, ctx->r_nr, ctx->buf, ctx->e); - addr += sizeof(ctx->buf) - ctx->buflen; - ctx->buflen = 0; - } - /* due to the special processing for M[n], "=" case is not included */ - while (addr + AES_BLOCKSIZE < ep) { - bcopy(addr, buf, AES_BLOCKSIZE); - for (i = 0; i < sizeof(buf); i++) - buf[i] ^= ctx->e[i]; - rijndaelEncrypt(ctx->r_k1s, ctx->r_nr, buf, ctx->e); - addr += AES_BLOCKSIZE; - } - if (addr < ep) { - bcopy(addr, ctx->buf + ctx->buflen, ep - addr); - ctx->buflen += ep - addr; - } -} - -void -ah_aes_xcbc_mac_result(state, addr, l) - struct ah_algorithm_state *state; - u_int8_t *addr; - size_t l; -{ - u_char digest[AES_BLOCKSIZE]; - aesxcbc_ctx *ctx; - int i; - - ctx = (aesxcbc_ctx *)state->foo; - - if (ctx->buflen == sizeof(ctx->buf)) { - for (i = 0; i < sizeof(ctx->buf); i++) { - ctx->buf[i] ^= ctx->e[i]; - ctx->buf[i] ^= ctx->k2[i]; - } - rijndaelEncrypt(ctx->r_k1s, ctx->r_nr, ctx->buf, digest); - } else { - for (i = ctx->buflen; i < sizeof(ctx->buf); i++) - ctx->buf[i] = (i == ctx->buflen) ? 0x80 : 0x00; - for (i = 0; i < sizeof(ctx->buf); i++) { - ctx->buf[i] ^= ctx->e[i]; - ctx->buf[i] ^= ctx->k3[i]; - } - rijndaelEncrypt(ctx->r_k1s, ctx->r_nr, ctx->buf, digest); - } - - bcopy(digest, addr, sizeof(digest) > l ? l : sizeof(digest)); - - free(state->foo, M_TEMP); -} |