[openssh.git] / cipher-acss.c

/*
 * 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 <openssl/evp.h>

RCSID("$Id$");

#if !defined(EVP_CTRL_SET_ACSS_MODE) && (OPENSSL_VERSION_NUMBER >= 0x00907000L)

#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
Commit	Line	Data
268c23e9	1	/*
	2	* Copyright (c) 2004 The OpenBSD project
	3	*
	4	* Permission to use, copy, modify, and distribute this software for any
	5	* purpose with or without fee is hereby granted, provided that the above
	6	* copyright notice and this permission notice appear in all copies.
	7	*
	8	* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
	9	* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
	10	* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
	11	* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
	12	* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
	13	* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
	14	* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
	15	*/
	16
	17	#include "includes.h"
	18	#include <openssl/evp.h>
	19
	20	RCSID("$Id$");
	21
c7b91244	22	#if !defined(EVP_CTRL_SET_ACSS_MODE) && (OPENSSL_VERSION_NUMBER >= 0x00907000L)
268c23e9	23
	24	#include "acss.h"
	25
	26	#define data(ctx) ((EVP_ACSS_KEY *)(ctx)->cipher_data)
	27
	28	typedef struct {
	29	ACSS_KEY ks;
	30	} EVP_ACSS_KEY;
	31
	32	#define EVP_CTRL_SET_ACSS_MODE 0xff06
	33	#define EVP_CTRL_SET_ACSS_SUBKEY 0xff07
	34
	35	static int
	36	acss_init_key(EVP_CIPHER_CTX ctx, const unsigned char key,
	37	const unsigned char *iv, int enc)
	38	{
	39	acss_setkey(&data(ctx)->ks,key,enc,ACSS_DATA);
	40	return 1;
	41	}
	42
	43	static int
	44	acss_ciph(EVP_CIPHER_CTX ctx, unsigned char out, const unsigned char *in,
	45	unsigned int inl)
	46	{
	47	acss(&data(ctx)->ks,inl,in,out);
	48	return 1;
	49	}
	50
	51	static int
	52	acss_ctrl(EVP_CIPHER_CTX ctx, int type, int arg, void ptr)
	53	{
	54	switch(type) {
	55	case EVP_CTRL_SET_ACSS_MODE:
	56	data(ctx)->ks.mode = arg;
	57	return 1;
	58	case EVP_CTRL_SET_ACSS_SUBKEY:
	59	acss_setsubkey(&data(ctx)->ks,(unsigned char *)ptr);
	60	return 1;
	61	default:
	62	return -1;
	63	}
	64	}
	65
	66	const EVP_CIPHER *
	67	evp_acss(void)
	68	{
	69	static EVP_CIPHER acss_cipher;
	70
	71	memset(&acss_cipher, 0, sizeof(EVP_CIPHER));
	72
	73	acss_cipher.nid = NID_undef;
	74	acss_cipher.block_size = 1;
	75	acss_cipher.key_len = 5;
	76	acss_cipher.init = acss_init_key;
	77	acss_cipher.do_cipher = acss_ciph;
	78	acss_cipher.ctx_size = sizeof(EVP_ACSS_KEY);
	79	acss_cipher.ctrl = acss_ctrl;
	80
	81	return (&acss_cipher);
	82	}
	83	#endif
	84