[thirdparty/openssl.git] / crypto / evp / e_des3.c

/*
 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the OpenSSL license (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

#include <stdio.h>
#include "internal/cryptlib.h"
#ifndef OPENSSL_NO_DES
# include <openssl/evp.h>
# include <openssl/objects.h>
# include "internal/evp_int.h"
# include <openssl/des.h>
# include <openssl/rand.h>

typedef struct {
    union {
        double align;
        DES_key_schedule ks[3];
    } ks;
    union {
        void (*cbc) (const void *, void *, size_t,
                     const DES_key_schedule *, unsigned char *);
    } stream;
} DES_EDE_KEY;
# define ks1 ks.ks[0]
# define ks2 ks.ks[1]
# define ks3 ks.ks[2]

# if defined(AES_ASM) && (defined(__sparc) || defined(__sparc__))
/* ---------^^^ this is not a typo, just a way to detect that
 * assembler support was in general requested... */
#  include "sparc_arch.h"

extern unsigned int OPENSSL_sparcv9cap_P[];

#  define SPARC_DES_CAPABLE       (OPENSSL_sparcv9cap_P[1] & CFR_DES)

void des_t4_key_expand(const void *key, DES_key_schedule *ks);
void des_t4_ede3_cbc_encrypt(const void *inp, void *out, size_t len,
                             const DES_key_schedule ks[3], unsigned char iv[8]);
void des_t4_ede3_cbc_decrypt(const void *inp, void *out, size_t len,
                             const DES_key_schedule ks[3], unsigned char iv[8]);
# endif

static int des_ede_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
                            const unsigned char *iv, int enc);

static int des_ede3_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
                             const unsigned char *iv, int enc);

static int des3_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr);

# define data(ctx) EVP_C_DATA(DES_EDE_KEY,ctx)

/*
 * Because of various casts and different args can't use
 * IMPLEMENT_BLOCK_CIPHER
 */

static int des_ede_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
                              const unsigned char *in, size_t inl)
{
    BLOCK_CIPHER_ecb_loop()
        DES_ecb3_encrypt((const_DES_cblock *)(in + i),
                         (DES_cblock *)(out + i),
                         &data(ctx)->ks1, &data(ctx)->ks2,
                         &data(ctx)->ks3, EVP_CIPHER_CTX_encrypting(ctx));
    return 1;
}

static int des_ede_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
                              const unsigned char *in, size_t inl)
{
    while (inl >= EVP_MAXCHUNK) {
        int num = EVP_CIPHER_CTX_num(ctx);
        DES_ede3_ofb64_encrypt(in, out, (long)EVP_MAXCHUNK,
                               &data(ctx)->ks1, &data(ctx)->ks2,
                               &data(ctx)->ks3,
                               (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx),
                               &num);
        EVP_CIPHER_CTX_set_num(ctx, num);
        inl -= EVP_MAXCHUNK;
        in += EVP_MAXCHUNK;
        out += EVP_MAXCHUNK;
    }
    if (inl) {
        int num = EVP_CIPHER_CTX_num(ctx);
        DES_ede3_ofb64_encrypt(in, out, (long)inl,
                               &data(ctx)->ks1, &data(ctx)->ks2,
                               &data(ctx)->ks3,
                               (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx),
                               &num);
        EVP_CIPHER_CTX_set_num(ctx, num);
    }
    return 1;
}

static int des_ede_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
                              const unsigned char *in, size_t inl)
{
    DES_EDE_KEY *dat = data(ctx);

    if (dat->stream.cbc != NULL) {
        (*dat->stream.cbc) (in, out, inl, dat->ks.ks,
                            EVP_CIPHER_CTX_iv_noconst(ctx));
        return 1;
    }

    while (inl >= EVP_MAXCHUNK) {
        DES_ede3_cbc_encrypt(in, out, (long)EVP_MAXCHUNK,
                             &dat->ks1, &dat->ks2, &dat->ks3,
                             (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx),
                             EVP_CIPHER_CTX_encrypting(ctx));
        inl -= EVP_MAXCHUNK;
        in += EVP_MAXCHUNK;
        out += EVP_MAXCHUNK;
    }
    if (inl)
        DES_ede3_cbc_encrypt(in, out, (long)inl,
                             &dat->ks1, &dat->ks2, &dat->ks3,
                             (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx),
                             EVP_CIPHER_CTX_encrypting(ctx));
    return 1;
}

static int des_ede_cfb64_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
                                const unsigned char *in, size_t inl)
{
    while (inl >= EVP_MAXCHUNK) {
        int num = EVP_CIPHER_CTX_num(ctx);
        DES_ede3_cfb64_encrypt(in, out, (long)EVP_MAXCHUNK,
                               &data(ctx)->ks1, &data(ctx)->ks2,
                               &data(ctx)->ks3,
                               (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx),
                               &num, EVP_CIPHER_CTX_encrypting(ctx));
        EVP_CIPHER_CTX_set_num(ctx, num);
        inl -= EVP_MAXCHUNK;
        in += EVP_MAXCHUNK;
        out += EVP_MAXCHUNK;
    }
    if (inl) {
        int num = EVP_CIPHER_CTX_num(ctx);
        DES_ede3_cfb64_encrypt(in, out, (long)inl,
                               &data(ctx)->ks1, &data(ctx)->ks2,
                               &data(ctx)->ks3,
                               (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx),
                               &num, EVP_CIPHER_CTX_encrypting(ctx));
        EVP_CIPHER_CTX_set_num(ctx, num);
    }
    return 1;
}

/*
 * Although we have a CFB-r implementation for 3-DES, it doesn't pack the
 * right way, so wrap it here
 */
static int des_ede3_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
                                const unsigned char *in, size_t inl)
{
    size_t n;
    unsigned char c[1], d[1];

    for (n = 0; n < inl; ++n) {
        c[0] = (in[n / 8] & (1 << (7 - n % 8))) ? 0x80 : 0;
        DES_ede3_cfb_encrypt(c, d, 1, 1,
                             &data(ctx)->ks1, &data(ctx)->ks2,
                             &data(ctx)->ks3,
                             (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx),
                             EVP_CIPHER_CTX_encrypting(ctx));
        out[n / 8] = (out[n / 8] & ~(0x80 >> (unsigned int)(n % 8)))
            | ((d[0] & 0x80) >> (unsigned int)(n % 8));
    }

    return 1;
}

static int des_ede3_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
                                const unsigned char *in, size_t inl)
{
    while (inl >= EVP_MAXCHUNK) {
        DES_ede3_cfb_encrypt(in, out, 8, (long)EVP_MAXCHUNK,
                             &data(ctx)->ks1, &data(ctx)->ks2,
                             &data(ctx)->ks3,
                             (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx),
                             EVP_CIPHER_CTX_encrypting(ctx));
        inl -= EVP_MAXCHUNK;
        in += EVP_MAXCHUNK;
        out += EVP_MAXCHUNK;
    }
    if (inl)
        DES_ede3_cfb_encrypt(in, out, 8, (long)inl,
                             &data(ctx)->ks1, &data(ctx)->ks2,
                             &data(ctx)->ks3,
                             (DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx),
                             EVP_CIPHER_CTX_encrypting(ctx));
    return 1;
}

BLOCK_CIPHER_defs(des_ede, DES_EDE_KEY, NID_des_ede, 8, 16, 8, 64,
                  EVP_CIPH_RAND_KEY | EVP_CIPH_FLAG_DEFAULT_ASN1,
                  des_ede_init_key, NULL, NULL, NULL, des3_ctrl)
# define des_ede3_cfb64_cipher des_ede_cfb64_cipher
# define des_ede3_ofb_cipher des_ede_ofb_cipher
# define des_ede3_cbc_cipher des_ede_cbc_cipher
# define des_ede3_ecb_cipher des_ede_ecb_cipher
    BLOCK_CIPHER_defs(des_ede3, DES_EDE_KEY, NID_des_ede3, 8, 24, 8, 64,
                  EVP_CIPH_RAND_KEY | EVP_CIPH_FLAG_DEFAULT_ASN1,
                  des_ede3_init_key, NULL, NULL, NULL, des3_ctrl)

    BLOCK_CIPHER_def_cfb(des_ede3, DES_EDE_KEY, NID_des_ede3, 24, 8, 1,
                     EVP_CIPH_RAND_KEY | EVP_CIPH_FLAG_DEFAULT_ASN1,
                     des_ede3_init_key, NULL, NULL, NULL, des3_ctrl)

    BLOCK_CIPHER_def_cfb(des_ede3, DES_EDE_KEY, NID_des_ede3, 24, 8, 8,
                     EVP_CIPH_RAND_KEY | EVP_CIPH_FLAG_DEFAULT_ASN1,
                     des_ede3_init_key, NULL, NULL, NULL, des3_ctrl)

static int des_ede_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
                            const unsigned char *iv, int enc)
{
    DES_cblock *deskey = (DES_cblock *)key;
    DES_EDE_KEY *dat = data(ctx);

    dat->stream.cbc = NULL;
# if defined(SPARC_DES_CAPABLE)
    if (SPARC_DES_CAPABLE) {
        int mode = EVP_CIPHER_CTX_mode(ctx);

        if (mode == EVP_CIPH_CBC_MODE) {
            des_t4_key_expand(&deskey[0], &dat->ks1);
            des_t4_key_expand(&deskey[1], &dat->ks2);
            memcpy(&dat->ks3, &dat->ks1, sizeof(dat->ks1));
            dat->stream.cbc = enc ? des_t4_ede3_cbc_encrypt :
                des_t4_ede3_cbc_decrypt;
            return 1;
        }
    }
# endif
    DES_set_key_unchecked(&deskey[0], &dat->ks1);
    DES_set_key_unchecked(&deskey[1], &dat->ks2);
    memcpy(&dat->ks3, &dat->ks1, sizeof(dat->ks1));
    return 1;
}

static int des_ede3_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
                             const unsigned char *iv, int enc)
{
    DES_cblock *deskey = (DES_cblock *)key;
    DES_EDE_KEY *dat = data(ctx);

    dat->stream.cbc = NULL;
# if defined(SPARC_DES_CAPABLE)
    if (SPARC_DES_CAPABLE) {
        int mode = EVP_CIPHER_CTX_mode(ctx);

        if (mode == EVP_CIPH_CBC_MODE) {
            des_t4_key_expand(&deskey[0], &dat->ks1);
            des_t4_key_expand(&deskey[1], &dat->ks2);
            des_t4_key_expand(&deskey[2], &dat->ks3);
            dat->stream.cbc = enc ? des_t4_ede3_cbc_encrypt :
                des_t4_ede3_cbc_decrypt;
            return 1;
        }
    }
# endif
    DES_set_key_unchecked(&deskey[0], &dat->ks1);
    DES_set_key_unchecked(&deskey[1], &dat->ks2);
    DES_set_key_unchecked(&deskey[2], &dat->ks3);
    return 1;
}

static int des3_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, void *ptr)
{

    DES_cblock *deskey = ptr;

    switch (type) {
    case EVP_CTRL_RAND_KEY:
        if (RAND_bytes(ptr, EVP_CIPHER_CTX_key_length(ctx)) <= 0)
            return 0;
        DES_set_odd_parity(deskey);
        if (EVP_CIPHER_CTX_key_length(ctx) >= 16)
            DES_set_odd_parity(deskey + 1);
        if (EVP_CIPHER_CTX_key_length(ctx) >= 24)
            DES_set_odd_parity(deskey + 2);
        return 1;

    default:
        return -1;
    }
}

const EVP_CIPHER *EVP_des_ede(void)
{
    return &des_ede_ecb;
}

const EVP_CIPHER *EVP_des_ede3(void)
{
    return &des_ede3_ecb;
}


# include <openssl/sha.h>

static const unsigned char wrap_iv[8] =
    { 0x4a, 0xdd, 0xa2, 0x2c, 0x79, 0xe8, 0x21, 0x05 };

static int des_ede3_unwrap(EVP_CIPHER_CTX *ctx, unsigned char *out,
                           const unsigned char *in, size_t inl)
{
    unsigned char icv[8], iv[8], sha1tmp[SHA_DIGEST_LENGTH];
    int rv = -1;
    if (inl < 24)
        return -1;
    if (out == NULL)
        return inl - 16;
    memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), wrap_iv, 8);
    /* Decrypt first block which will end up as icv */
    des_ede_cbc_cipher(ctx, icv, in, 8);
    /* Decrypt central blocks */
    /*
     * If decrypting in place move whole output along a block so the next
     * des_ede_cbc_cipher is in place.
     */
    if (out == in) {
        memmove(out, out + 8, inl - 8);
        in -= 8;
    }
    des_ede_cbc_cipher(ctx, out, in + 8, inl - 16);
    /* Decrypt final block which will be IV */
    des_ede_cbc_cipher(ctx, iv, in + inl - 8, 8);
    /* Reverse order of everything */
    BUF_reverse(icv, NULL, 8);
    BUF_reverse(out, NULL, inl - 16);
    BUF_reverse(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 8);
    /* Decrypt again using new IV */
    des_ede_cbc_cipher(ctx, out, out, inl - 16);
    des_ede_cbc_cipher(ctx, icv, icv, 8);
    /* Work out SHA1 hash of first portion */
    SHA1(out, inl - 16, sha1tmp);

    if (!CRYPTO_memcmp(sha1tmp, icv, 8))
        rv = inl - 16;
    OPENSSL_cleanse(icv, 8);
    OPENSSL_cleanse(sha1tmp, SHA_DIGEST_LENGTH);
    OPENSSL_cleanse(iv, 8);
    OPENSSL_cleanse(EVP_CIPHER_CTX_iv_noconst(ctx), 8);
    if (rv == -1)
        OPENSSL_cleanse(out, inl - 16);

    return rv;
}

static int des_ede3_wrap(EVP_CIPHER_CTX *ctx, unsigned char *out,
                         const unsigned char *in, size_t inl)
{
    unsigned char sha1tmp[SHA_DIGEST_LENGTH];
    if (out == NULL)
        return inl + 16;
    /* Copy input to output buffer + 8 so we have space for IV */
    memmove(out + 8, in, inl);
    /* Work out ICV */
    SHA1(in, inl, sha1tmp);
    memcpy(out + inl + 8, sha1tmp, 8);
    OPENSSL_cleanse(sha1tmp, SHA_DIGEST_LENGTH);
    /* Generate random IV */
    if (RAND_bytes(EVP_CIPHER_CTX_iv_noconst(ctx), 8) <= 0)
        return -1;
    memcpy(out, EVP_CIPHER_CTX_iv_noconst(ctx), 8);
    /* Encrypt everything after IV in place */
    des_ede_cbc_cipher(ctx, out + 8, out + 8, inl + 8);
    BUF_reverse(out, NULL, inl + 16);
    memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), wrap_iv, 8);
    des_ede_cbc_cipher(ctx, out, out, inl + 16);
    return inl + 16;
}

static int des_ede3_wrap_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
                                const unsigned char *in, size_t inl)
{
    /*
     * Sanity check input length: we typically only wrap keys so EVP_MAXCHUNK
     * is more than will ever be needed. Also input length must be a multiple
     * of 8 bits.
     */
    if (inl >= EVP_MAXCHUNK || inl % 8)
        return -1;
    if (EVP_CIPHER_CTX_encrypting(ctx))
        return des_ede3_wrap(ctx, out, in, inl);
    else
        return des_ede3_unwrap(ctx, out, in, inl);
}

static const EVP_CIPHER des3_wrap = {
    NID_id_smime_alg_CMS3DESwrap,
    8, 24, 0,
    EVP_CIPH_WRAP_MODE | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER
        | EVP_CIPH_FLAG_DEFAULT_ASN1,
    des_ede3_init_key, des_ede3_wrap_cipher,
    NULL,
    sizeof(DES_EDE_KEY),
    NULL, NULL, NULL, NULL
};

const EVP_CIPHER *EVP_des_ede3_wrap(void)
{
    return &des3_wrap;
}

#endif
Commit	Line	Data
62867571 RS	1	/*
62867571 RS	2	* Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
d02b48c6	3	*
62867571 RS	4	* Licensed under the OpenSSL license (the "License"). You may not use
	5	* this file except in compliance with the License. You can obtain a copy
	6	* in the file LICENSE in the source distribution or at
	7	* https://www.openssl.org/source/license.html
d02b48c6 RE	8	*/
	9
	10	#include <stdio.h>
b39fc560	11	#include "internal/cryptlib.h"
9e9e8cb6	12	#ifndef OPENSSL_NO_DES
0f113f3e MC	13	# include <openssl/evp.h>
0f113f3e MC	14	# include <openssl/objects.h>
6435f0f6	15	# include "internal/evp_int.h"
0f113f3e MC	16	# include <openssl/des.h>
	17	# include <openssl/rand.h>
	18
	19	typedef struct {
	20	union {
	21	double align;
	22	DES_key_schedule ks[3];
	23	} ks;
	24	union {
7687f525 AP	25	void (cbc) (const void , void *, size_t,
7687f525 AP	26	const DES_key_schedule , unsigned char );
0f113f3e MC	27	} stream;
	28	} DES_EDE_KEY;
	29	# define ks1 ks.ks[0]
	30	# define ks2 ks.ks[1]
	31	# define ks3 ks.ks[2]
	32
	33	# if defined(AES_ASM) && (defined(__sparc) \|\| defined(__sparc__))
c5d975a7 AP	34	/* ---------^^^ this is not a typo, just a way to detect that
c5d975a7 AP	35	* assembler support was in general requested... */
0f113f3e	36	# include "sparc_arch.h"
c5d975a7 AP	37
	38	extern unsigned int OPENSSL_sparcv9cap_P[];
	39
0f113f3e	40	# define SPARC_DES_CAPABLE (OPENSSL_sparcv9cap_P[1] & CFR_DES)
c5d975a7	41
0f113f3e MC	42	void des_t4_key_expand(const void key, DES_key_schedule ks);
0f113f3e MC	43	void des_t4_ede3_cbc_encrypt(const void inp, void out, size_t len,
7687f525	44	const DES_key_schedule ks[3], unsigned char iv[8]);
0f113f3e	45	void des_t4_ede3_cbc_decrypt(const void inp, void out, size_t len,
7687f525	46	const DES_key_schedule ks[3], unsigned char iv[8]);
0f113f3e	47	# endif
c5d975a7	48
1921eaad	49	static int des_ede_init_key(EVP_CIPHER_CTX ctx, const unsigned char key,
0f113f3e	50	const unsigned char *iv, int enc);
57ae2e24	51
1921eaad	52	static int des_ede3_init_key(EVP_CIPHER_CTX ctx, const unsigned char key,
0f113f3e	53	const unsigned char *iv, int enc);
d02b48c6	54
216659eb DSH	55	static int des3_ctrl(EVP_CIPHER_CTX c, int type, int arg, void ptr);
216659eb DSH	56
6435f0f6	57	# define data(ctx) EVP_C_DATA(DES_EDE_KEY,ctx)
dbad1690	58
0f113f3e MC	59	/*
	60	* Because of various casts and different args can't use
	61	* IMPLEMENT_BLOCK_CIPHER
	62	*/
d02b48c6	63
1921eaad	64	static int des_ede_ecb_cipher(EVP_CIPHER_CTX ctx, unsigned char out,
0f113f3e	65	const unsigned char *in, size_t inl)
57ae2e24	66	{
0f113f3e MC	67	BLOCK_CIPHER_ecb_loop()
	68	DES_ecb3_encrypt((const_DES_cblock *)(in + i),
	69	(DES_cblock *)(out + i),
	70	&data(ctx)->ks1, &data(ctx)->ks2,
6435f0f6	71	&data(ctx)->ks3, EVP_CIPHER_CTX_encrypting(ctx));
0f113f3e	72	return 1;
57ae2e24 DSH	73	}
57ae2e24 DSH	74
1921eaad	75	static int des_ede_ofb_cipher(EVP_CIPHER_CTX ctx, unsigned char out,
0f113f3e	76	const unsigned char *in, size_t inl)
57ae2e24	77	{
0f113f3e	78	while (inl >= EVP_MAXCHUNK) {
6435f0f6	79	int num = EVP_CIPHER_CTX_num(ctx);
0f113f3e MC	80	DES_ede3_ofb64_encrypt(in, out, (long)EVP_MAXCHUNK,
0f113f3e MC	81	&data(ctx)->ks1, &data(ctx)->ks2,
6435f0f6 RL	82	&data(ctx)->ks3,
	83	(DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx),
	84	&num);
	85	EVP_CIPHER_CTX_set_num(ctx, num);
0f113f3e MC	86	inl -= EVP_MAXCHUNK;
	87	in += EVP_MAXCHUNK;
	88	out += EVP_MAXCHUNK;
	89	}
6435f0f6 RL	90	if (inl) {
6435f0f6 RL	91	int num = EVP_CIPHER_CTX_num(ctx);
0f113f3e MC	92	DES_ede3_ofb64_encrypt(in, out, (long)inl,
0f113f3e MC	93	&data(ctx)->ks1, &data(ctx)->ks2,
6435f0f6 RL	94	&data(ctx)->ks3,
	95	(DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx),
	96	&num);
	97	EVP_CIPHER_CTX_set_num(ctx, num);
	98	}
0f113f3e	99	return 1;
57ae2e24 DSH	100	}
57ae2e24 DSH	101
1921eaad	102	static int des_ede_cbc_cipher(EVP_CIPHER_CTX ctx, unsigned char out,
0f113f3e	103	const unsigned char *in, size_t inl)
57ae2e24	104	{
0f113f3e	105	DES_EDE_KEY *dat = data(ctx);
c5d975a7	106
7687f525 AP	107	if (dat->stream.cbc != NULL) {
	108	(*dat->stream.cbc) (in, out, inl, dat->ks.ks,
	109	EVP_CIPHER_CTX_iv_noconst(ctx));
0f113f3e MC	110	return 1;
	111	}
	112
	113	while (inl >= EVP_MAXCHUNK) {
	114	DES_ede3_cbc_encrypt(in, out, (long)EVP_MAXCHUNK,
	115	&dat->ks1, &dat->ks2, &dat->ks3,
7687f525 AP	116	(DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx),
7687f525 AP	117	EVP_CIPHER_CTX_encrypting(ctx));
0f113f3e MC	118	inl -= EVP_MAXCHUNK;
	119	in += EVP_MAXCHUNK;
	120	out += EVP_MAXCHUNK;
	121	}
	122	if (inl)
	123	DES_ede3_cbc_encrypt(in, out, (long)inl,
	124	&dat->ks1, &dat->ks2, &dat->ks3,
7687f525 AP	125	(DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx),
7687f525 AP	126	EVP_CIPHER_CTX_encrypting(ctx));
0f113f3e	127	return 1;
57ae2e24 DSH	128	}
57ae2e24 DSH	129
8c6336b0	130	static int des_ede_cfb64_cipher(EVP_CIPHER_CTX ctx, unsigned char out,
0f113f3e	131	const unsigned char *in, size_t inl)
57ae2e24	132	{
0f113f3e	133	while (inl >= EVP_MAXCHUNK) {
6435f0f6	134	int num = EVP_CIPHER_CTX_num(ctx);
0f113f3e MC	135	DES_ede3_cfb64_encrypt(in, out, (long)EVP_MAXCHUNK,
0f113f3e MC	136	&data(ctx)->ks1, &data(ctx)->ks2,
6435f0f6 RL	137	&data(ctx)->ks3,
	138	(DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx),
	139	&num, EVP_CIPHER_CTX_encrypting(ctx));
	140	EVP_CIPHER_CTX_set_num(ctx, num);
0f113f3e MC	141	inl -= EVP_MAXCHUNK;
	142	in += EVP_MAXCHUNK;
	143	out += EVP_MAXCHUNK;
	144	}
6435f0f6 RL	145	if (inl) {
6435f0f6 RL	146	int num = EVP_CIPHER_CTX_num(ctx);
0f113f3e MC	147	DES_ede3_cfb64_encrypt(in, out, (long)inl,
0f113f3e MC	148	&data(ctx)->ks1, &data(ctx)->ks2,
6435f0f6 RL	149	&data(ctx)->ks3,
	150	(DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx),
	151	&num, EVP_CIPHER_CTX_encrypting(ctx));
	152	EVP_CIPHER_CTX_set_num(ctx, num);
	153	}
0f113f3e	154	return 1;
57ae2e24 DSH	155	}
57ae2e24 DSH	156
0f113f3e MC	157	/*
	158	* Although we have a CFB-r implementation for 3-DES, it doesn't pack the
	159	* right way, so wrap it here
	160	*/
8c6336b0	161	static int des_ede3_cfb1_cipher(EVP_CIPHER_CTX ctx, unsigned char out,
0f113f3e MC	162	const unsigned char *in, size_t inl)
0f113f3e MC	163	{
b444ac3e	164	size_t n;
0f113f3e MC	165	unsigned char c[1], d[1];
	166
	167	for (n = 0; n < inl; ++n) {
	168	c[0] = (in[n / 8] & (1 << (7 - n % 8))) ? 0x80 : 0;
	169	DES_ede3_cfb_encrypt(c, d, 1, 1,
	170	&data(ctx)->ks1, &data(ctx)->ks2,
7687f525 AP	171	&data(ctx)->ks3,
7687f525 AP	172	(DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx),
6435f0f6	173	EVP_CIPHER_CTX_encrypting(ctx));
0f113f3e MC	174	out[n / 8] = (out[n / 8] & ~(0x80 >> (unsigned int)(n % 8)))
	175	\| ((d[0] & 0x80) >> (unsigned int)(n % 8));
	176	}
8c6336b0 AP	177
8c6336b0 AP	178	return 1;
0f113f3e	179	}
8c6336b0 AP	180
8c6336b0 AP	181	static int des_ede3_cfb8_cipher(EVP_CIPHER_CTX ctx, unsigned char out,
0f113f3e MC	182	const unsigned char *in, size_t inl)
	183	{
	184	while (inl >= EVP_MAXCHUNK) {
	185	DES_ede3_cfb_encrypt(in, out, 8, (long)EVP_MAXCHUNK,
	186	&data(ctx)->ks1, &data(ctx)->ks2,
7687f525 AP	187	&data(ctx)->ks3,
7687f525 AP	188	(DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx),
6435f0f6	189	EVP_CIPHER_CTX_encrypting(ctx));
0f113f3e MC	190	inl -= EVP_MAXCHUNK;
	191	in += EVP_MAXCHUNK;
	192	out += EVP_MAXCHUNK;
	193	}
b444ac3e	194	if (inl)
0f113f3e MC	195	DES_ede3_cfb_encrypt(in, out, 8, (long)inl,
0f113f3e MC	196	&data(ctx)->ks1, &data(ctx)->ks2,
7687f525 AP	197	&data(ctx)->ks3,
7687f525 AP	198	(DES_cblock *)EVP_CIPHER_CTX_iv_noconst(ctx),
6435f0f6	199	EVP_CIPHER_CTX_encrypting(ctx));
8c6336b0	200	return 1;
0f113f3e	201	}
8c6336b0	202
a6cd8707	203	BLOCK_CIPHER_defs(des_ede, DES_EDE_KEY, NID_des_ede, 8, 16, 8, 64,
0f113f3e MC	204	EVP_CIPH_RAND_KEY \| EVP_CIPH_FLAG_DEFAULT_ASN1,
	205	des_ede_init_key, NULL, NULL, NULL, des3_ctrl)
	206	# define des_ede3_cfb64_cipher des_ede_cfb64_cipher
	207	# define des_ede3_ofb_cipher des_ede_ofb_cipher
	208	# define des_ede3_cbc_cipher des_ede_cbc_cipher
	209	# define des_ede3_ecb_cipher des_ede_ecb_cipher
	210	BLOCK_CIPHER_defs(des_ede3, DES_EDE_KEY, NID_des_ede3, 8, 24, 8, 64,
	211	EVP_CIPH_RAND_KEY \| EVP_CIPH_FLAG_DEFAULT_ASN1,
	212	des_ede3_init_key, NULL, NULL, NULL, des3_ctrl)
	213
	214	BLOCK_CIPHER_def_cfb(des_ede3, DES_EDE_KEY, NID_des_ede3, 24, 8, 1,
	215	EVP_CIPH_RAND_KEY \| EVP_CIPH_FLAG_DEFAULT_ASN1,
	216	des_ede3_init_key, NULL, NULL, NULL, des3_ctrl)
	217
	218	BLOCK_CIPHER_def_cfb(des_ede3, DES_EDE_KEY, NID_des_ede3, 24, 8, 8,
	219	EVP_CIPH_RAND_KEY \| EVP_CIPH_FLAG_DEFAULT_ASN1,
	220	des_ede3_init_key, NULL, NULL, NULL, des3_ctrl)
8c6336b0	221
1921eaad	222	static int des_ede_init_key(EVP_CIPHER_CTX ctx, const unsigned char key,
0f113f3e MC	223	const unsigned char *iv, int enc)
	224	{
	225	DES_cblock deskey = (DES_cblock )key;
	226	DES_EDE_KEY *dat = data(ctx);
	227
	228	dat->stream.cbc = NULL;
	229	# if defined(SPARC_DES_CAPABLE)
	230	if (SPARC_DES_CAPABLE) {
ecdd0ff7	231	int mode = EVP_CIPHER_CTX_mode(ctx);
0f113f3e MC	232
	233	if (mode == EVP_CIPH_CBC_MODE) {
	234	des_t4_key_expand(&deskey[0], &dat->ks1);
	235	des_t4_key_expand(&deskey[1], &dat->ks2);
	236	memcpy(&dat->ks3, &dat->ks1, sizeof(dat->ks1));
	237	dat->stream.cbc = enc ? des_t4_ede3_cbc_encrypt :
	238	des_t4_ede3_cbc_decrypt;
	239	return 1;
	240	}
	241	}
	242	# endif
0f113f3e MC	243	DES_set_key_unchecked(&deskey[0], &dat->ks1);
0f113f3e MC	244	DES_set_key_unchecked(&deskey[1], &dat->ks2);
0f113f3e MC	245	memcpy(&dat->ks3, &dat->ks1, sizeof(dat->ks1));
	246	return 1;
	247	}
d02b48c6	248
1921eaad	249	static int des_ede3_init_key(EVP_CIPHER_CTX ctx, const unsigned char key,
0f113f3e MC	250	const unsigned char *iv, int enc)
	251	{
	252	DES_cblock deskey = (DES_cblock )key;
	253	DES_EDE_KEY *dat = data(ctx);
c5d975a7	254
0f113f3e MC	255	dat->stream.cbc = NULL;
	256	# if defined(SPARC_DES_CAPABLE)
	257	if (SPARC_DES_CAPABLE) {
ecdd0ff7	258	int mode = EVP_CIPHER_CTX_mode(ctx);
0f113f3e MC	259
	260	if (mode == EVP_CIPH_CBC_MODE) {
	261	des_t4_key_expand(&deskey[0], &dat->ks1);
	262	des_t4_key_expand(&deskey[1], &dat->ks2);
	263	des_t4_key_expand(&deskey[2], &dat->ks3);
	264	dat->stream.cbc = enc ? des_t4_ede3_cbc_encrypt :
	265	des_t4_ede3_cbc_decrypt;
	266	return 1;
	267	}
	268	}
	269	# endif
0f113f3e MC	270	DES_set_key_unchecked(&deskey[0], &dat->ks1);
	271	DES_set_key_unchecked(&deskey[1], &dat->ks2);
	272	DES_set_key_unchecked(&deskey[2], &dat->ks3);
0f113f3e MC	273	return 1;
0f113f3e MC	274	}
57ae2e24	275
6435f0f6	276	static int des3_ctrl(EVP_CIPHER_CTX ctx, int type, int arg, void ptr)
0f113f3e MC	277	{
	278
	279	DES_cblock *deskey = ptr;
	280
	281	switch (type) {
	282	case EVP_CTRL_RAND_KEY:
6435f0f6	283	if (RAND_bytes(ptr, EVP_CIPHER_CTX_key_length(ctx)) <= 0)
0f113f3e MC	284	return 0;
0f113f3e MC	285	DES_set_odd_parity(deskey);
6435f0f6	286	if (EVP_CIPHER_CTX_key_length(ctx) >= 16)
0f113f3e	287	DES_set_odd_parity(deskey + 1);
6435f0f6	288	if (EVP_CIPHER_CTX_key_length(ctx) >= 24)
0f113f3e MC	289	DES_set_odd_parity(deskey + 2);
	290	return 1;
	291
	292	default:
	293	return -1;
	294	}
	295	}
216659eb	296
13588350	297	const EVP_CIPHER *EVP_des_ede(void)
57ae2e24	298	{
0f113f3e	299	return &des_ede_ecb;
57ae2e24 DSH	300	}
57ae2e24 DSH	301
13588350	302	const EVP_CIPHER *EVP_des_ede3(void)
57ae2e24	303	{
0f113f3e	304	return &des_ede3_ecb;
57ae2e24	305	}
97cf1f6c	306
97cf1f6c	307
474e469b	308	# include <openssl/sha.h>
97cf1f6c	309
0f113f3e MC	310	static const unsigned char wrap_iv[8] =
0f113f3e MC	311	{ 0x4a, 0xdd, 0xa2, 0x2c, 0x79, 0xe8, 0x21, 0x05 };
97cf1f6c DSH	312
97cf1f6c DSH	313	static int des_ede3_unwrap(EVP_CIPHER_CTX ctx, unsigned char out,
0f113f3e MC	314	const unsigned char *in, size_t inl)
	315	{
	316	unsigned char icv[8], iv[8], sha1tmp[SHA_DIGEST_LENGTH];
	317	int rv = -1;
	318	if (inl < 24)
	319	return -1;
7687f525	320	if (out == NULL)
0f113f3e	321	return inl - 16;
6435f0f6	322	memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), wrap_iv, 8);
0f113f3e MC	323	/* Decrypt first block which will end up as icv */
	324	des_ede_cbc_cipher(ctx, icv, in, 8);
	325	/* Decrypt central blocks */
	326	/*
	327	* If decrypting in place move whole output along a block so the next
	328	* des_ede_cbc_cipher is in place.
	329	*/
	330	if (out == in) {
	331	memmove(out, out + 8, inl - 8);
	332	in -= 8;
	333	}
	334	des_ede_cbc_cipher(ctx, out, in + 8, inl - 16);
	335	/* Decrypt final block which will be IV */
	336	des_ede_cbc_cipher(ctx, iv, in + inl - 8, 8);
	337	/* Reverse order of everything */
	338	BUF_reverse(icv, NULL, 8);
	339	BUF_reverse(out, NULL, inl - 16);
6435f0f6	340	BUF_reverse(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 8);
0f113f3e MC	341	/* Decrypt again using new IV */
	342	des_ede_cbc_cipher(ctx, out, out, inl - 16);
	343	des_ede_cbc_cipher(ctx, icv, icv, 8);
	344	/* Work out SHA1 hash of first portion */
	345	SHA1(out, inl - 16, sha1tmp);
	346
	347	if (!CRYPTO_memcmp(sha1tmp, icv, 8))
	348	rv = inl - 16;
	349	OPENSSL_cleanse(icv, 8);
	350	OPENSSL_cleanse(sha1tmp, SHA_DIGEST_LENGTH);
	351	OPENSSL_cleanse(iv, 8);
6435f0f6	352	OPENSSL_cleanse(EVP_CIPHER_CTX_iv_noconst(ctx), 8);
0f113f3e MC	353	if (rv == -1)
	354	OPENSSL_cleanse(out, inl - 16);
	355
	356	return rv;
	357	}
97cf1f6c DSH	358
97cf1f6c DSH	359	static int des_ede3_wrap(EVP_CIPHER_CTX ctx, unsigned char out,
0f113f3e MC	360	const unsigned char *in, size_t inl)
	361	{
	362	unsigned char sha1tmp[SHA_DIGEST_LENGTH];
7687f525	363	if (out == NULL)
0f113f3e MC	364	return inl + 16;
	365	/* Copy input to output buffer + 8 so we have space for IV */
	366	memmove(out + 8, in, inl);
	367	/* Work out ICV */
	368	SHA1(in, inl, sha1tmp);
	369	memcpy(out + inl + 8, sha1tmp, 8);
	370	OPENSSL_cleanse(sha1tmp, SHA_DIGEST_LENGTH);
	371	/* Generate random IV */
6435f0f6	372	if (RAND_bytes(EVP_CIPHER_CTX_iv_noconst(ctx), 8) <= 0)
266483d2	373	return -1;
6435f0f6	374	memcpy(out, EVP_CIPHER_CTX_iv_noconst(ctx), 8);
0f113f3e MC	375	/* Encrypt everything after IV in place */
	376	des_ede_cbc_cipher(ctx, out + 8, out + 8, inl + 8);
	377	BUF_reverse(out, NULL, inl + 16);
6435f0f6	378	memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), wrap_iv, 8);
0f113f3e MC	379	des_ede_cbc_cipher(ctx, out, out, inl + 16);
	380	return inl + 16;
	381	}
97cf1f6c DSH	382
97cf1f6c DSH	383	static int des_ede3_wrap_cipher(EVP_CIPHER_CTX ctx, unsigned char out,
0f113f3e MC	384	const unsigned char *in, size_t inl)
	385	{
	386	/*
	387	* Sanity check input length: we typically only wrap keys so EVP_MAXCHUNK
	388	* is more than will ever be needed. Also input length must be a multiple
	389	* of 8 bits.
	390	*/
	391	if (inl >= EVP_MAXCHUNK \|\| inl % 8)
	392	return -1;
6435f0f6	393	if (EVP_CIPHER_CTX_encrypting(ctx))
0f113f3e MC	394	return des_ede3_wrap(ctx, out, in, inl);
	395	else
	396	return des_ede3_unwrap(ctx, out, in, inl);
	397	}
97cf1f6c DSH	398
97cf1f6c DSH	399	static const EVP_CIPHER des3_wrap = {
0f113f3e MC	400	NID_id_smime_alg_CMS3DESwrap,
	401	8, 24, 0,
	402	EVP_CIPH_WRAP_MODE \| EVP_CIPH_CUSTOM_IV \| EVP_CIPH_FLAG_CUSTOM_CIPHER
	403	\| EVP_CIPH_FLAG_DEFAULT_ASN1,
	404	des_ede3_init_key, des_ede3_wrap_cipher,
	405	NULL,
	406	sizeof(DES_EDE_KEY),
	407	NULL, NULL, NULL, NULL
	408	};
97cf1f6c DSH	409
97cf1f6c DSH	410	const EVP_CIPHER *EVP_des_ede3_wrap(void)
0f113f3e MC	411	{
	412	return &des3_wrap;
	413	}
97cf1f6c	414
d02f751c	415	#endif