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Commit 76cb9521 authored by Kevin Coffman's avatar Kevin Coffman Committed by Herbert Xu
Browse files

[CRYPTO] cts: Add CTS mode required for Kerberos AES support 



Implement CTS wrapper for CBC mode required for support of AES
encryption support for Kerberos (rfc3962).

Signed-off-by: default avatarKevin Coffman <kwc@citi.umich.edu>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent fd4609a8

crypto/Kconfig

+11 −0
Original line number Diff line number Diff line
@@ -213,6 +213,17 @@ config CRYPTO_CTR 
	  CTR: Counter mode

	  This block cipher algorithm is required for IPSec.



config CRYPTO_CTS

	tristate "CTS support"

	select CRYPTO_BLKCIPHER

	help

	  CTS: Cipher Text Stealing

	  This is the Cipher Text Stealing mode as described by

	  Section 8 of rfc2040 and referenced by rfc3962.

	  (rfc3962 includes errata information in its Appendix A)

	  This mode is required for Kerberos gss mechanism support

	  for AES encryption.



config CRYPTO_GCM

	tristate "GCM/GMAC support"

	select CRYPTO_CTR

crypto/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -35,6 +35,7 @@ obj-$(CONFIG_CRYPTO_GF128MUL) += gf128mul.o 
obj-$(CONFIG_CRYPTO_ECB) += ecb.o

obj-$(CONFIG_CRYPTO_CBC) += cbc.o

obj-$(CONFIG_CRYPTO_PCBC) += pcbc.o

obj-$(CONFIG_CRYPTO_CTS) += cts.o

obj-$(CONFIG_CRYPTO_LRW) += lrw.o

obj-$(CONFIG_CRYPTO_XTS) += xts.o

obj-$(CONFIG_CRYPTO_CTR) += ctr.o

crypto/cts.c

0 → 100644
+347 −0
Original line number Diff line number Diff line 
/*

 * CTS: Cipher Text Stealing mode

 *

 * COPYRIGHT (c) 2008

 * The Regents of the University of Michigan

 * ALL RIGHTS RESERVED

 *

 * Permission is granted to use, copy, create derivative works

 * and redistribute this software and such derivative works

 * for any purpose, so long as the name of The University of

 * Michigan is not used in any advertising or publicity

 * pertaining to the use of distribution of this software

 * without specific, written prior authorization.  If the

 * above copyright notice or any other identification of the

 * University of Michigan is included in any copy of any

 * portion of this software, then the disclaimer below must

 * also be included.

 *

 * THIS SOFTWARE IS PROVIDED AS IS, WITHOUT REPRESENTATION

 * FROM THE UNIVERSITY OF MICHIGAN AS TO ITS FITNESS FOR ANY

 * PURPOSE, AND WITHOUT WARRANTY BY THE UNIVERSITY OF

 * MICHIGAN OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING

 * WITHOUT LIMITATION THE IMPLIED WARRANTIES OF

 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE

 * REGENTS OF THE UNIVERSITY OF MICHIGAN SHALL NOT BE LIABLE

 * FOR ANY DAMAGES, INCLUDING SPECIAL, INDIRECT, INCIDENTAL, OR

 * CONSEQUENTIAL DAMAGES, WITH RESPECT TO ANY CLAIM ARISING

 * OUT OF OR IN CONNECTION WITH THE USE OF THE SOFTWARE, EVEN

 * IF IT HAS BEEN OR IS HEREAFTER ADVISED OF THE POSSIBILITY OF

 * SUCH DAMAGES.

 */



/* Derived from various:

 *	Copyright (c) 2006 Herbert Xu <herbert@gondor.apana.org.au>

 */



/*

 * This is the Cipher Text Stealing mode as described by

 * Section 8 of rfc2040 and referenced by rfc3962.

 * rfc3962 includes errata information in its Appendix A.

 */



#include <crypto/algapi.h>

#include <linux/err.h>

#include <linux/init.h>

#include <linux/kernel.h>

#include <linux/log2.h>

#include <linux/module.h>

#include <linux/scatterlist.h>

#include <crypto/scatterwalk.h>

#include <linux/slab.h>



struct crypto_cts_ctx {

	struct crypto_blkcipher *child;

};



static int crypto_cts_setkey(struct crypto_tfm *parent, const u8 *key,

			     unsigned int keylen)

{

	struct crypto_cts_ctx *ctx = crypto_tfm_ctx(parent);

	struct crypto_blkcipher *child = ctx->child;

	int err;



	crypto_blkcipher_clear_flags(child, CRYPTO_TFM_REQ_MASK);

	crypto_blkcipher_set_flags(child, crypto_tfm_get_flags(parent) &

				       CRYPTO_TFM_REQ_MASK);

	err = crypto_blkcipher_setkey(child, key, keylen);

	crypto_tfm_set_flags(parent, crypto_blkcipher_get_flags(child) &

				     CRYPTO_TFM_RES_MASK);

	return err;

}



static int cts_cbc_encrypt(struct crypto_cts_ctx *ctx,

			   struct blkcipher_desc *desc,

			   struct scatterlist *dst,

			   struct scatterlist *src,

			   unsigned int offset,

			   unsigned int nbytes)

{

	int bsize = crypto_blkcipher_blocksize(desc->tfm);

	u8 tmp[bsize], tmp2[bsize];

	struct blkcipher_desc lcldesc;

	struct scatterlist sgsrc[1], sgdst[1];

	int lastn = nbytes - bsize;

	u8 iv[bsize];

	u8 s[bsize * 2], d[bsize * 2];

	int err;



	if (lastn < 0)

		return -EINVAL;



	memset(s, 0, sizeof(s));

	scatterwalk_map_and_copy(s, src, offset, nbytes, 0);



	memcpy(iv, desc->info, bsize);



	lcldesc.tfm = ctx->child;

	lcldesc.info = iv;

	lcldesc.flags = desc->flags;



	sg_set_buf(&sgsrc[0], s, bsize);

	sg_set_buf(&sgdst[0], tmp, bsize);

	err = crypto_blkcipher_encrypt_iv(&lcldesc, sgdst, sgsrc, bsize);



	memcpy(d + bsize, tmp, lastn);



	lcldesc.info = tmp;



	sg_set_buf(&sgsrc[0], s + bsize, bsize);

	sg_set_buf(&sgdst[0], tmp2, bsize);

	err = crypto_blkcipher_encrypt_iv(&lcldesc, sgdst, sgsrc, bsize);



	memcpy(d, tmp2, bsize);



	scatterwalk_map_and_copy(d, dst, offset, nbytes, 1);



	memcpy(desc->info, tmp2, bsize);



	return err;

}



static int crypto_cts_encrypt(struct blkcipher_desc *desc,

			      struct scatterlist *dst, struct scatterlist *src,

			      unsigned int nbytes)

{

	struct crypto_cts_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);

	int bsize = crypto_blkcipher_blocksize(desc->tfm);

	int tot_blocks = (nbytes + bsize - 1) / bsize;

	int cbc_blocks = tot_blocks > 2 ? tot_blocks - 2 : 0;

	struct blkcipher_desc lcldesc;

	int err;



	lcldesc.tfm = ctx->child;

	lcldesc.info = desc->info;

	lcldesc.flags = desc->flags;



	if (tot_blocks == 1) {

		err = crypto_blkcipher_encrypt_iv(&lcldesc, dst, src, bsize);

	} else if (nbytes <= bsize * 2) {

		err = cts_cbc_encrypt(ctx, desc, dst, src, 0, nbytes);

	} else {

		/* do normal function for tot_blocks - 2 */

		err = crypto_blkcipher_encrypt_iv(&lcldesc, dst, src,

							cbc_blocks * bsize);

		if (err == 0) {

			/* do cts for final two blocks */

			err = cts_cbc_encrypt(ctx, desc, dst, src,

						cbc_blocks * bsize,

						nbytes - (cbc_blocks * bsize));

		}

	}



	return err;

}



static int cts_cbc_decrypt(struct crypto_cts_ctx *ctx,

			   struct blkcipher_desc *desc,

			   struct scatterlist *dst,

			   struct scatterlist *src,

			   unsigned int offset,

			   unsigned int nbytes)

{

	int bsize = crypto_blkcipher_blocksize(desc->tfm);

	u8 tmp[bsize];

	struct blkcipher_desc lcldesc;

	struct scatterlist sgsrc[1], sgdst[1];

	int lastn = nbytes - bsize;

	u8 iv[bsize];

	u8 s[bsize * 2], d[bsize * 2];

	int err;



	if (lastn < 0)

		return -EINVAL;



	scatterwalk_map_and_copy(s, src, offset, nbytes, 0);



	lcldesc.tfm = ctx->child;

	lcldesc.info = iv;

	lcldesc.flags = desc->flags;



	/* 1. Decrypt Cn-1 (s) to create Dn (tmp)*/

	memset(iv, 0, sizeof(iv));

	sg_set_buf(&sgsrc[0], s, bsize);

	sg_set_buf(&sgdst[0], tmp, bsize);

	err = crypto_blkcipher_decrypt_iv(&lcldesc, sgdst, sgsrc, bsize);

	if (err)

		return err;

	/* 2. Pad Cn with zeros at the end to create C of length BB */

	memset(iv, 0, sizeof(iv));

	memcpy(iv, s + bsize, lastn);

	/* 3. Exclusive-or Dn (tmp) with C (iv) to create Xn (tmp) */

	crypto_xor(tmp, iv, bsize);

	/* 4. Select the first Ln bytes of Xn (tmp) to create Pn */

	memcpy(d + bsize, tmp, lastn);



	/* 5. Append the tail (BB - Ln) bytes of Xn (tmp) to Cn to create En */

	memcpy(s + bsize + lastn, tmp + lastn, bsize - lastn);

	/* 6. Decrypt En to create Pn-1 */

	memset(iv, 0, sizeof(iv));

	sg_set_buf(&sgsrc[0], s + bsize, bsize);

	sg_set_buf(&sgdst[0], d, bsize);

	err = crypto_blkcipher_decrypt_iv(&lcldesc, sgdst, sgsrc, bsize);



	/* XOR with previous block */

	crypto_xor(d, desc->info, bsize);



	scatterwalk_map_and_copy(d, dst, offset, nbytes, 1);



	memcpy(desc->info, s, bsize);

	return err;

}



static int crypto_cts_decrypt(struct blkcipher_desc *desc,

			      struct scatterlist *dst, struct scatterlist *src,

			      unsigned int nbytes)

{

	struct crypto_cts_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);

	int bsize = crypto_blkcipher_blocksize(desc->tfm);

	int tot_blocks = (nbytes + bsize - 1) / bsize;

	int cbc_blocks = tot_blocks > 2 ? tot_blocks - 2 : 0;

	struct blkcipher_desc lcldesc;

	int err;



	lcldesc.tfm = ctx->child;

	lcldesc.info = desc->info;

	lcldesc.flags = desc->flags;



	if (tot_blocks == 1) {

		err = crypto_blkcipher_decrypt_iv(&lcldesc, dst, src, bsize);

	} else if (nbytes <= bsize * 2) {

		err = cts_cbc_decrypt(ctx, desc, dst, src, 0, nbytes);

	} else {

		/* do normal function for tot_blocks - 2 */

		err = crypto_blkcipher_decrypt_iv(&lcldesc, dst, src,

							cbc_blocks * bsize);

		if (err == 0) {

			/* do cts for final two blocks */

			err = cts_cbc_decrypt(ctx, desc, dst, src,

						cbc_blocks * bsize,

						nbytes - (cbc_blocks * bsize));

		}

	}

	return err;

}



static int crypto_cts_init_tfm(struct crypto_tfm *tfm)

{

	struct crypto_instance *inst = (void *)tfm->__crt_alg;

	struct crypto_spawn *spawn = crypto_instance_ctx(inst);

	struct crypto_cts_ctx *ctx = crypto_tfm_ctx(tfm);

	struct crypto_blkcipher *cipher;



	cipher = crypto_spawn_blkcipher(spawn);

	if (IS_ERR(cipher))

		return PTR_ERR(cipher);



	ctx->child = cipher;

	return 0;

}



static void crypto_cts_exit_tfm(struct crypto_tfm *tfm)

{

	struct crypto_cts_ctx *ctx = crypto_tfm_ctx(tfm);

	crypto_free_blkcipher(ctx->child);

}



static struct crypto_instance *crypto_cts_alloc(struct rtattr **tb)

{

	struct crypto_instance *inst;

	struct crypto_alg *alg;

	int err;



	err = crypto_check_attr_type(tb, CRYPTO_ALG_TYPE_BLKCIPHER);

	if (err)

		return ERR_PTR(err);



	alg = crypto_attr_alg(tb[1], CRYPTO_ALG_TYPE_BLKCIPHER,

				  CRYPTO_ALG_TYPE_MASK);

	err = PTR_ERR(alg);

	if (IS_ERR(alg))

		return ERR_PTR(err);



	inst = ERR_PTR(-EINVAL);

	if (!is_power_of_2(alg->cra_blocksize))

		goto out_put_alg;



	inst = crypto_alloc_instance("cts", alg);

	if (IS_ERR(inst))

		goto out_put_alg;



	inst->alg.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER;

	inst->alg.cra_priority = alg->cra_priority;

	inst->alg.cra_blocksize = alg->cra_blocksize;

	inst->alg.cra_alignmask = alg->cra_alignmask;

	inst->alg.cra_type = &crypto_blkcipher_type;



	/* We access the data as u32s when xoring. */

	inst->alg.cra_alignmask |= __alignof__(u32) - 1;



	inst->alg.cra_blkcipher.ivsize = alg->cra_blocksize;

	inst->alg.cra_blkcipher.min_keysize = alg->cra_blkcipher.min_keysize;

	inst->alg.cra_blkcipher.max_keysize = alg->cra_blkcipher.max_keysize;



	inst->alg.cra_blkcipher.geniv = "seqiv";



	inst->alg.cra_ctxsize = sizeof(struct crypto_cts_ctx);



	inst->alg.cra_init = crypto_cts_init_tfm;

	inst->alg.cra_exit = crypto_cts_exit_tfm;



	inst->alg.cra_blkcipher.setkey = crypto_cts_setkey;

	inst->alg.cra_blkcipher.encrypt = crypto_cts_encrypt;

	inst->alg.cra_blkcipher.decrypt = crypto_cts_decrypt;



out_put_alg:

	crypto_mod_put(alg);

	return inst;

}



static void crypto_cts_free(struct crypto_instance *inst)

{

	crypto_drop_spawn(crypto_instance_ctx(inst));

	kfree(inst);

}



static struct crypto_template crypto_cts_tmpl = {

	.name = "cts",

	.alloc = crypto_cts_alloc,

	.free = crypto_cts_free,

	.module = THIS_MODULE,

};



static int __init crypto_cts_module_init(void)

{

	return crypto_register_template(&crypto_cts_tmpl);

}



static void __exit crypto_cts_module_exit(void)

{

	crypto_unregister_template(&crypto_cts_tmpl);

}



module_init(crypto_cts_module_init);

module_exit(crypto_cts_module_exit);



MODULE_LICENSE("Dual BSD/GPL");

MODULE_DESCRIPTION("CTS-CBC CipherText Stealing for CBC");

crypto/tcrypt.c

+14 −2
Original line number Diff line number Diff line
@@ -82,9 +82,8 @@ static char *check[] = { 
	"des", "md5", "des3_ede", "rot13", "sha1", "sha224", "sha256",

	"blowfish", "twofish", "serpent", "sha384", "sha512", "md4", "aes",

	"cast6", "arc4", "michael_mic", "deflate", "crc32c", "tea", "xtea",

	"arc4", "michael_mic", "deflate", "crc32c", "tea", "xtea",

	"khazad", "wp512", "wp384", "wp256", "tnepres", "xeta",  "fcrypt",

	"camellia", "seed", "salsa20", "lzo", NULL

	"camellia", "seed", "salsa20", "lzo", "cts", NULL

};



static void hexdump(unsigned char *buf, unsigned int len)
@@ -1328,6 +1327,12 @@ static void do_test(void) 
		test_cipher("ecb(seed)", DECRYPT, seed_dec_tv_template,

			    SEED_DEC_TEST_VECTORS);



		//CTS

		test_cipher("cts(cbc(aes))", ENCRYPT, cts_mode_enc_tv_template,

			    CTS_MODE_ENC_TEST_VECTORS);

		test_cipher("cts(cbc(aes))", DECRYPT, cts_mode_dec_tv_template,

			    CTS_MODE_DEC_TEST_VECTORS);



		test_hash("sha384", sha384_tv_template, SHA384_TEST_VECTORS);

		test_hash("sha512", sha512_tv_template, SHA512_TEST_VECTORS);

		test_hash("wp512", wp512_tv_template, WP512_TEST_VECTORS);
@@ -1611,6 +1616,13 @@ static void do_test(void) 
			  AES_CCM_DEC_TEST_VECTORS);

		break;



	case 38:

		test_cipher("cts(cbc(aes))", ENCRYPT, cts_mode_enc_tv_template,

			    CTS_MODE_ENC_TEST_VECTORS);

		test_cipher("cts(cbc(aes))", DECRYPT, cts_mode_dec_tv_template,

			    CTS_MODE_DEC_TEST_VECTORS);

		break;



	case 100:

		test_hash("hmac(md5)", hmac_md5_tv_template,

			  HMAC_MD5_TEST_VECTORS);

crypto/tcrypt.h

+209 −0
Original line number Diff line number Diff line
@@ -7622,6 +7622,215 @@ static struct cipher_testvec salsa20_stream_enc_tv_template[] = { 
	},

};



/*

 * CTS (Cipher Text Stealing) mode tests

 */

#define CTS_MODE_ENC_TEST_VECTORS 6

#define CTS_MODE_DEC_TEST_VECTORS 6

static struct cipher_testvec cts_mode_enc_tv_template[] = {

	{ /* from rfc3962 */

		.klen	= 16,

		.key    = "\x63\x68\x69\x63\x6b\x65\x6e\x20"

			  "\x74\x65\x72\x69\x79\x61\x6b\x69",

		.ilen	= 17,

		.input  = "\x49\x20\x77\x6f\x75\x6c\x64\x20"

			  "\x6c\x69\x6b\x65\x20\x74\x68\x65"

			  "\x20",

		.rlen	= 17,

		.result	= "\xc6\x35\x35\x68\xf2\xbf\x8c\xb4"

			  "\xd8\xa5\x80\x36\x2d\xa7\xff\x7f"

			  "\x97",

	}, {

		.klen	= 16,

		.key    = "\x63\x68\x69\x63\x6b\x65\x6e\x20"

			  "\x74\x65\x72\x69\x79\x61\x6b\x69",

		.ilen   = 31,

		.input  = "\x49\x20\x77\x6f\x75\x6c\x64\x20"

			  "\x6c\x69\x6b\x65\x20\x74\x68\x65"

			  "\x20\x47\x65\x6e\x65\x72\x61\x6c"

			  "\x20\x47\x61\x75\x27\x73\x20",

		.rlen   = 31,

		.result = "\xfc\x00\x78\x3e\x0e\xfd\xb2\xc1"

			  "\xd4\x45\xd4\xc8\xef\xf7\xed\x22"

			  "\x97\x68\x72\x68\xd6\xec\xcc\xc0"

			  "\xc0\x7b\x25\xe2\x5e\xcf\xe5",

	}, {

		.klen	= 16,

		.key    = "\x63\x68\x69\x63\x6b\x65\x6e\x20"

			  "\x74\x65\x72\x69\x79\x61\x6b\x69",

		.ilen   = 32,

		.input  = "\x49\x20\x77\x6f\x75\x6c\x64\x20"

			  "\x6c\x69\x6b\x65\x20\x74\x68\x65"

			  "\x20\x47\x65\x6e\x65\x72\x61\x6c"

			  "\x20\x47\x61\x75\x27\x73\x20\x43",

		.rlen   = 32,

		.result = "\x39\x31\x25\x23\xa7\x86\x62\xd5"

			  "\xbe\x7f\xcb\xcc\x98\xeb\xf5\xa8"

			  "\x97\x68\x72\x68\xd6\xec\xcc\xc0"

			  "\xc0\x7b\x25\xe2\x5e\xcf\xe5\x84",

	}, {

		.klen	= 16,

		.key    = "\x63\x68\x69\x63\x6b\x65\x6e\x20"

			  "\x74\x65\x72\x69\x79\x61\x6b\x69",

		.ilen   = 47,

		.input  = "\x49\x20\x77\x6f\x75\x6c\x64\x20"

			  "\x6c\x69\x6b\x65\x20\x74\x68\x65"

			  "\x20\x47\x65\x6e\x65\x72\x61\x6c"

			  "\x20\x47\x61\x75\x27\x73\x20\x43"

			  "\x68\x69\x63\x6b\x65\x6e\x2c\x20"

			  "\x70\x6c\x65\x61\x73\x65\x2c",

		.rlen   = 47,

		.result = "\x97\x68\x72\x68\xd6\xec\xcc\xc0"

			  "\xc0\x7b\x25\xe2\x5e\xcf\xe5\x84"

			  "\xb3\xff\xfd\x94\x0c\x16\xa1\x8c"

			  "\x1b\x55\x49\xd2\xf8\x38\x02\x9e"

			  "\x39\x31\x25\x23\xa7\x86\x62\xd5"

			  "\xbe\x7f\xcb\xcc\x98\xeb\xf5",

	}, {

		.klen	= 16,

		.key    = "\x63\x68\x69\x63\x6b\x65\x6e\x20"

			  "\x74\x65\x72\x69\x79\x61\x6b\x69",

		.ilen   = 48,

		.input  = "\x49\x20\x77\x6f\x75\x6c\x64\x20"

			  "\x6c\x69\x6b\x65\x20\x74\x68\x65"

			  "\x20\x47\x65\x6e\x65\x72\x61\x6c"

			  "\x20\x47\x61\x75\x27\x73\x20\x43"

			  "\x68\x69\x63\x6b\x65\x6e\x2c\x20"

			  "\x70\x6c\x65\x61\x73\x65\x2c\x20",

		.rlen   = 48,

		.result = "\x97\x68\x72\x68\xd6\xec\xcc\xc0"

			  "\xc0\x7b\x25\xe2\x5e\xcf\xe5\x84"

			  "\x9d\xad\x8b\xbb\x96\xc4\xcd\xc0"

			  "\x3b\xc1\x03\xe1\xa1\x94\xbb\xd8"

			  "\x39\x31\x25\x23\xa7\x86\x62\xd5"

			  "\xbe\x7f\xcb\xcc\x98\xeb\xf5\xa8",

	}, {

		.klen	= 16,

		.key    = "\x63\x68\x69\x63\x6b\x65\x6e\x20"

			  "\x74\x65\x72\x69\x79\x61\x6b\x69",

		.ilen   = 64,

		.input  = "\x49\x20\x77\x6f\x75\x6c\x64\x20"

			  "\x6c\x69\x6b\x65\x20\x74\x68\x65"

			  "\x20\x47\x65\x6e\x65\x72\x61\x6c"

			  "\x20\x47\x61\x75\x27\x73\x20\x43"

			  "\x68\x69\x63\x6b\x65\x6e\x2c\x20"

			  "\x70\x6c\x65\x61\x73\x65\x2c\x20"

			  "\x61\x6e\x64\x20\x77\x6f\x6e\x74"

			  "\x6f\x6e\x20\x73\x6f\x75\x70\x2e",

		.rlen   = 64,

		.result = "\x97\x68\x72\x68\xd6\xec\xcc\xc0"

			  "\xc0\x7b\x25\xe2\x5e\xcf\xe5\x84"

			  "\x39\x31\x25\x23\xa7\x86\x62\xd5"

			  "\xbe\x7f\xcb\xcc\x98\xeb\xf5\xa8"

			  "\x48\x07\xef\xe8\x36\xee\x89\xa5"

			  "\x26\x73\x0d\xbc\x2f\x7b\xc8\x40"

			  "\x9d\xad\x8b\xbb\x96\xc4\xcd\xc0"

			  "\x3b\xc1\x03\xe1\xa1\x94\xbb\xd8",

	}

};



static struct cipher_testvec cts_mode_dec_tv_template[] = {

	{ /* from rfc3962 */

		.klen	= 16,

		.key    = "\x63\x68\x69\x63\x6b\x65\x6e\x20"

			  "\x74\x65\x72\x69\x79\x61\x6b\x69",

		.rlen	= 17,

		.result = "\x49\x20\x77\x6f\x75\x6c\x64\x20"

			  "\x6c\x69\x6b\x65\x20\x74\x68\x65"

			  "\x20",

		.ilen	= 17,

		.input	= "\xc6\x35\x35\x68\xf2\xbf\x8c\xb4"

			  "\xd8\xa5\x80\x36\x2d\xa7\xff\x7f"

			  "\x97",

	}, {

		.klen	= 16,

		.key    = "\x63\x68\x69\x63\x6b\x65\x6e\x20"

			  "\x74\x65\x72\x69\x79\x61\x6b\x69",

		.rlen   = 31,

		.result = "\x49\x20\x77\x6f\x75\x6c\x64\x20"

			  "\x6c\x69\x6b\x65\x20\x74\x68\x65"

			  "\x20\x47\x65\x6e\x65\x72\x61\x6c"

			  "\x20\x47\x61\x75\x27\x73\x20",

		.ilen   = 31,

		.input  = "\xfc\x00\x78\x3e\x0e\xfd\xb2\xc1"

			  "\xd4\x45\xd4\xc8\xef\xf7\xed\x22"

			  "\x97\x68\x72\x68\xd6\xec\xcc\xc0"

			  "\xc0\x7b\x25\xe2\x5e\xcf\xe5",

	}, {

		.klen	= 16,

		.key    = "\x63\x68\x69\x63\x6b\x65\x6e\x20"

			  "\x74\x65\x72\x69\x79\x61\x6b\x69",

		.rlen   = 32,

		.result = "\x49\x20\x77\x6f\x75\x6c\x64\x20"

			  "\x6c\x69\x6b\x65\x20\x74\x68\x65"

			  "\x20\x47\x65\x6e\x65\x72\x61\x6c"

			  "\x20\x47\x61\x75\x27\x73\x20\x43",

		.ilen   = 32,

		.input  = "\x39\x31\x25\x23\xa7\x86\x62\xd5"

			  "\xbe\x7f\xcb\xcc\x98\xeb\xf5\xa8"

			  "\x97\x68\x72\x68\xd6\xec\xcc\xc0"

			  "\xc0\x7b\x25\xe2\x5e\xcf\xe5\x84",

	}, {

		.klen	= 16,

		.key    = "\x63\x68\x69\x63\x6b\x65\x6e\x20"

			  "\x74\x65\x72\x69\x79\x61\x6b\x69",

		.rlen   = 47,

		.result = "\x49\x20\x77\x6f\x75\x6c\x64\x20"

			  "\x6c\x69\x6b\x65\x20\x74\x68\x65"

			  "\x20\x47\x65\x6e\x65\x72\x61\x6c"

			  "\x20\x47\x61\x75\x27\x73\x20\x43"

			  "\x68\x69\x63\x6b\x65\x6e\x2c\x20"

			  "\x70\x6c\x65\x61\x73\x65\x2c",

		.ilen   = 47,

		.input  = "\x97\x68\x72\x68\xd6\xec\xcc\xc0"

			  "\xc0\x7b\x25\xe2\x5e\xcf\xe5\x84"

			  "\xb3\xff\xfd\x94\x0c\x16\xa1\x8c"

			  "\x1b\x55\x49\xd2\xf8\x38\x02\x9e"

			  "\x39\x31\x25\x23\xa7\x86\x62\xd5"

			  "\xbe\x7f\xcb\xcc\x98\xeb\xf5",

	}, {

		.klen	= 16,

		.key    = "\x63\x68\x69\x63\x6b\x65\x6e\x20"

			  "\x74\x65\x72\x69\x79\x61\x6b\x69",

		.rlen   = 48,

		.result = "\x49\x20\x77\x6f\x75\x6c\x64\x20"

			  "\x6c\x69\x6b\x65\x20\x74\x68\x65"

			  "\x20\x47\x65\x6e\x65\x72\x61\x6c"

			  "\x20\x47\x61\x75\x27\x73\x20\x43"

			  "\x68\x69\x63\x6b\x65\x6e\x2c\x20"

			  "\x70\x6c\x65\x61\x73\x65\x2c\x20",

		.ilen   = 48,

		.input  = "\x97\x68\x72\x68\xd6\xec\xcc\xc0"

			  "\xc0\x7b\x25\xe2\x5e\xcf\xe5\x84"

			  "\x9d\xad\x8b\xbb\x96\xc4\xcd\xc0"

			  "\x3b\xc1\x03\xe1\xa1\x94\xbb\xd8"

			  "\x39\x31\x25\x23\xa7\x86\x62\xd5"

			  "\xbe\x7f\xcb\xcc\x98\xeb\xf5\xa8",

	}, {

		.klen	= 16,

		.key    = "\x63\x68\x69\x63\x6b\x65\x6e\x20"

			  "\x74\x65\x72\x69\x79\x61\x6b\x69",

		.rlen   = 64,

		.result = "\x49\x20\x77\x6f\x75\x6c\x64\x20"

			  "\x6c\x69\x6b\x65\x20\x74\x68\x65"

			  "\x20\x47\x65\x6e\x65\x72\x61\x6c"

			  "\x20\x47\x61\x75\x27\x73\x20\x43"

			  "\x68\x69\x63\x6b\x65\x6e\x2c\x20"

			  "\x70\x6c\x65\x61\x73\x65\x2c\x20"

			  "\x61\x6e\x64\x20\x77\x6f\x6e\x74"

			  "\x6f\x6e\x20\x73\x6f\x75\x70\x2e",

		.ilen   = 64,

		.input  = "\x97\x68\x72\x68\xd6\xec\xcc\xc0"

			  "\xc0\x7b\x25\xe2\x5e\xcf\xe5\x84"

			  "\x39\x31\x25\x23\xa7\x86\x62\xd5"

			  "\xbe\x7f\xcb\xcc\x98\xeb\xf5\xa8"

			  "\x48\x07\xef\xe8\x36\xee\x89\xa5"

			  "\x26\x73\x0d\xbc\x2f\x7b\xc8\x40"

			  "\x9d\xad\x8b\xbb\x96\xc4\xcd\xc0"

			  "\x3b\xc1\x03\xe1\xa1\x94\xbb\xd8",

	}

};



/*

 * Compression stuff.

 */