remove OPENSSL_FIPSAPI

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

/* crypto/evp/e_des3.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young (eay@cryptsoft.com).
 * The implementation was written so as to conform with Netscapes SSL.
 * 
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
 * 
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    "This product includes cryptographic software written by
 *     Eric Young (eay@cryptsoft.com)"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from 
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
 * 
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * 
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */



#include <stdio.h>
#include "cryptlib.h"
#ifndef OPENSSL_NO_DES
#include <openssl/evp.h>
#include <openssl/objects.h>
#include "evp_locl.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 void *,void *);
        } 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,
                                DES_key_schedule *ks,unsigned char iv[8]);
void    des_t4_ede3_cbc_decrypt(const void *inp,void *out,size_t len,
                                DES_key_schedule *ks,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) ((DES_EDE_KEY *)(ctx)->cipher_data)

/* 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,
                                 ctx->encrypt);
        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)
                {
                DES_ede3_ofb64_encrypt(in, out, (long)EVP_MAXCHUNK,
                               &data(ctx)->ks1, &data(ctx)->ks2, &data(ctx)->ks3,
                               (DES_cblock *)ctx->iv, &ctx->num);
                inl-=EVP_MAXCHUNK;
                in +=EVP_MAXCHUNK;
                out+=EVP_MAXCHUNK;
                }
        if (inl)
                DES_ede3_ofb64_encrypt(in, out, (long)inl,
                                &data(ctx)->ks1, &data(ctx)->ks2, &data(ctx)->ks3,
                               (DES_cblock *)ctx->iv, &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);

#ifdef KSSL_DEBUG
        {
        int i;
        char *cp;
        printf("des_ede_cbc_cipher(ctx=%lx, buflen=%d)\n", ctx, ctx->buf_len);
        printf("\t iv= ");
        for(i=0;i<8;i++)
                printf("%02X",ctx->iv[i]);
        printf("\n");
        }
#endif    /* KSSL_DEBUG */
        if (dat->stream.cbc)
                {
                (*dat->stream.cbc)(in,out,inl,&dat->ks,ctx->iv);
                return 1;
                }

        while (inl>=EVP_MAXCHUNK)
                {
                DES_ede3_cbc_encrypt(in, out, (long)EVP_MAXCHUNK,
                             &dat->ks1, &dat->ks2, &dat->ks3,
                             (DES_cblock *)ctx->iv, ctx->encrypt);
                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 *)ctx->iv, ctx->encrypt);
        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)
                {
                DES_ede3_cfb64_encrypt(in, out, (long)EVP_MAXCHUNK, 
                               &data(ctx)->ks1, &data(ctx)->ks2, &data(ctx)->ks3,
                               (DES_cblock *)ctx->iv, &ctx->num, ctx->encrypt);
                inl-=EVP_MAXCHUNK;
                in +=EVP_MAXCHUNK;
                out+=EVP_MAXCHUNK;
                }
        if (inl)
                DES_ede3_cfb64_encrypt(in, out, (long)inl,
                               &data(ctx)->ks1, &data(ctx)->ks2, &data(ctx)->ks3,
                               (DES_cblock *)ctx->iv, &ctx->num, ctx->encrypt);
        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 *)ctx->iv,ctx->encrypt);
        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 *)ctx->iv,ctx->encrypt);
        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 *)ctx->iv,ctx->encrypt);
    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 = ctx->cipher->flags & EVP_CIPH_MODE;

                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
#ifdef EVP_CHECK_DES_KEY
        if (DES_set_key_checked(&deskey[0],&dat->ks1)
                !! DES_set_key_checked(&deskey[1],&dat->ks2))
                return 0;
#else
        DES_set_key_unchecked(&deskey[0],&dat->ks1);
        DES_set_key_unchecked(&deskey[1],&dat->ks2);
#endif
        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);

#ifdef KSSL_DEBUG
        {
        int i;
        printf("des_ede3_init_key(ctx=%lx)\n", ctx);
        printf("\tKEY= ");
        for(i=0;i<24;i++) printf("%02X",key[i]); printf("\n");
        printf("\t IV= ");
        for(i=0;i<8;i++) printf("%02X",iv[i]); printf("\n");
        }
#endif  /* KSSL_DEBUG */

        dat->stream.cbc = NULL;
#if defined(SPARC_DES_CAPABLE)
        if (SPARC_DES_CAPABLE)
                {
                int mode = ctx->cipher->flags & EVP_CIPH_MODE;

                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
#ifdef EVP_CHECK_DES_KEY
        if (DES_set_key_checked(&deskey[0],&dat->ks1)
                || DES_set_key_checked(&deskey[1],&dat->ks2)
                || DES_set_key_checked(&deskey[2],&dat->ks3))
                return 0;
#else
        DES_set_key_unchecked(&deskey[0],&dat->ks1);
        DES_set_key_unchecked(&deskey[1],&dat->ks2);
        DES_set_key_unchecked(&deskey[2],&dat->ks3);
#endif
        return 1;
        }

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

        DES_cblock *deskey = ptr;

        switch(type)
                {
        case EVP_CTRL_RAND_KEY:
                if (RAND_bytes(ptr, c->key_len) <= 0)
                        return 0;
                DES_set_odd_parity(deskey);
                if (c->key_len >= 16)
                        DES_set_odd_parity(deskey + 1);
                if (c->key_len >= 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;
}

#ifndef OPENSSL_NO_SHA

#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)
                return inl - 16;
        memcpy(ctx->iv, 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(ctx->iv, 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(ctx->iv, 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)
                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 */
        RAND_bytes(ctx->iv, 8);
        memcpy(out, ctx->iv, 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(ctx->iv, 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 (ctx->encrypt)
                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
#endif