From 4f0fe684daa4f35e1c91224e144c91b4869946fa Mon Sep 17 00:00:00 2001 From: Damien Miller Date: Tue, 27 Jan 2004 21:19:21 +1100 Subject: - (djm) OpenBSD CVS Sync - hshoexer@cvs.openbsd.org 2004/01/23 17:06:03 [cipher.c] enable acss for ssh ok deraadt@ markus@ - (djm) [acss.c acss.h cipher-acss.c] Portable support for ACSS if libcrypto lacks it --- cipher-acss.c | 84 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 84 insertions(+) create mode 100644 cipher-acss.c (limited to 'cipher-acss.c') diff --git a/cipher-acss.c b/cipher-acss.c new file mode 100644 index 00000000..e2e3a406 --- /dev/null +++ b/cipher-acss.c @@ -0,0 +1,84 @@ +/* + * Copyright (c) 2004 The OpenBSD project + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "includes.h" +#include + +RCSID("$Id: cipher-acss.c,v 1.1 2004/01/27 10:19:22 djm Exp $"); + +#if !defined(EVP_CTRL_SET_ACSS_MODE) && (OPENSSL_VERSION_NUMBER >= 0x00906000L) + +#include "acss.h" + +#define data(ctx) ((EVP_ACSS_KEY *)(ctx)->cipher_data) + +typedef struct { + ACSS_KEY ks; +} EVP_ACSS_KEY; + +#define EVP_CTRL_SET_ACSS_MODE 0xff06 +#define EVP_CTRL_SET_ACSS_SUBKEY 0xff07 + +static int +acss_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, + const unsigned char *iv, int enc) +{ + acss_setkey(&data(ctx)->ks,key,enc,ACSS_DATA); + return 1; +} + +static int +acss_ciph(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, + unsigned int inl) +{ + acss(&data(ctx)->ks,inl,in,out); + return 1; +} + +static int +acss_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, void *ptr) +{ + switch(type) { + case EVP_CTRL_SET_ACSS_MODE: + data(ctx)->ks.mode = arg; + return 1; + case EVP_CTRL_SET_ACSS_SUBKEY: + acss_setsubkey(&data(ctx)->ks,(unsigned char *)ptr); + return 1; + default: + return -1; + } +} + +const EVP_CIPHER * +evp_acss(void) +{ + static EVP_CIPHER acss_cipher; + + memset(&acss_cipher, 0, sizeof(EVP_CIPHER)); + + acss_cipher.nid = NID_undef; + acss_cipher.block_size = 1; + acss_cipher.key_len = 5; + acss_cipher.init = acss_init_key; + acss_cipher.do_cipher = acss_ciph; + acss_cipher.ctx_size = sizeof(EVP_ACSS_KEY); + acss_cipher.ctrl = acss_ctrl; + + return (&acss_cipher); +} +#endif + -- cgit v1.2.3