[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>

#include <string.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"
28cb0a43	18
268c23e9	19	#include <openssl/evp.h>
268c23e9	20
28cb0a43	21	#include <string.h>
28cb0a43	22
c7b91244	23	#if !defined(EVP_CTRL_SET_ACSS_MODE) && (OPENSSL_VERSION_NUMBER >= 0x00907000L)
268c23e9	24
	25	#include "acss.h"
	26
	27	#define data(ctx) ((EVP_ACSS_KEY *)(ctx)->cipher_data)
	28
	29	typedef struct {
	30	ACSS_KEY ks;
	31	} EVP_ACSS_KEY;
	32
	33	#define EVP_CTRL_SET_ACSS_MODE 0xff06
	34	#define EVP_CTRL_SET_ACSS_SUBKEY 0xff07
	35
	36	static int
d1cf9a87	37	acss_init_key(EVP_CIPHER_CTX ctx, const unsigned char key,
268c23e9	38	const unsigned char *iv, int enc)
	39	{
	40	acss_setkey(&data(ctx)->ks,key,enc,ACSS_DATA);
	41	return 1;
	42	}
	43
	44	static int
d1cf9a87	45	acss_ciph(EVP_CIPHER_CTX ctx, unsigned char out, const unsigned char *in,
268c23e9	46	unsigned int inl)
	47	{
	48	acss(&data(ctx)->ks,inl,in,out);
	49	return 1;
	50	}
	51
	52	static int
	53	acss_ctrl(EVP_CIPHER_CTX ctx, int type, int arg, void ptr)
	54	{
	55	switch(type) {
	56	case EVP_CTRL_SET_ACSS_MODE:
	57	data(ctx)->ks.mode = arg;
	58	return 1;
	59	case EVP_CTRL_SET_ACSS_SUBKEY:
	60	acss_setsubkey(&data(ctx)->ks,(unsigned char *)ptr);
	61	return 1;
	62	default:
	63	return -1;
	64	}
	65	}
	66
	67	const EVP_CIPHER *
	68	evp_acss(void)
	69	{
	70	static EVP_CIPHER acss_cipher;
	71
	72	memset(&acss_cipher, 0, sizeof(EVP_CIPHER));
	73
	74	acss_cipher.nid = NID_undef;
	75	acss_cipher.block_size = 1;
	76	acss_cipher.key_len = 5;
	77	acss_cipher.init = acss_init_key;
	78	acss_cipher.do_cipher = acss_ciph;
	79	acss_cipher.ctx_size = sizeof(EVP_ACSS_KEY);
	80	acss_cipher.ctrl = acss_ctrl;
	81
	82	return (&acss_cipher);
	83	}
	84	#endif
	85