[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>

#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
c7b91244	20	#if !defined(EVP_CTRL_SET_ACSS_MODE) && (OPENSSL_VERSION_NUMBER >= 0x00907000L)
268c23e9	21
	22	#include "acss.h"
	23
	24	#define data(ctx) ((EVP_ACSS_KEY *)(ctx)->cipher_data)
	25
	26	typedef struct {
	27	ACSS_KEY ks;
	28	} EVP_ACSS_KEY;
	29
	30	#define EVP_CTRL_SET_ACSS_MODE 0xff06
	31	#define EVP_CTRL_SET_ACSS_SUBKEY 0xff07
	32
	33	static int
d1cf9a87	34	acss_init_key(EVP_CIPHER_CTX ctx, const unsigned char key,
268c23e9	35	const unsigned char *iv, int enc)
	36	{
	37	acss_setkey(&data(ctx)->ks,key,enc,ACSS_DATA);
	38	return 1;
	39	}
	40
	41	static int
d1cf9a87	42	acss_ciph(EVP_CIPHER_CTX ctx, unsigned char out, const unsigned char *in,
268c23e9	43	unsigned int inl)
	44	{
	45	acss(&data(ctx)->ks,inl,in,out);
	46	return 1;
	47	}
	48
	49	static int
	50	acss_ctrl(EVP_CIPHER_CTX ctx, int type, int arg, void ptr)
	51	{
	52	switch(type) {
	53	case EVP_CTRL_SET_ACSS_MODE:
	54	data(ctx)->ks.mode = arg;
	55	return 1;
	56	case EVP_CTRL_SET_ACSS_SUBKEY:
	57	acss_setsubkey(&data(ctx)->ks,(unsigned char *)ptr);
	58	return 1;
	59	default:
	60	return -1;
	61	}
	62	}
	63
	64	const EVP_CIPHER *
	65	evp_acss(void)
	66	{
	67	static EVP_CIPHER acss_cipher;
	68
	69	memset(&acss_cipher, 0, sizeof(EVP_CIPHER));
	70
	71	acss_cipher.nid = NID_undef;
	72	acss_cipher.block_size = 1;
	73	acss_cipher.key_len = 5;
	74	acss_cipher.init = acss_init_key;
	75	acss_cipher.do_cipher = acss_ciph;
	76	acss_cipher.ctx_size = sizeof(EVP_ACSS_KEY);
	77	acss_cipher.ctrl = acss_ctrl;
	78
	79	return (&acss_cipher);
	80	}
	81	#endif
	82