10Sstevel@tonic-gate /* crypto/evp/p_open.c */
20Sstevel@tonic-gate /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
30Sstevel@tonic-gate * All rights reserved.
40Sstevel@tonic-gate *
50Sstevel@tonic-gate * This package is an SSL implementation written
60Sstevel@tonic-gate * by Eric Young (eay@cryptsoft.com).
70Sstevel@tonic-gate * The implementation was written so as to conform with Netscapes SSL.
80Sstevel@tonic-gate *
90Sstevel@tonic-gate * This library is free for commercial and non-commercial use as long as
100Sstevel@tonic-gate * the following conditions are aheared to. The following conditions
110Sstevel@tonic-gate * apply to all code found in this distribution, be it the RC4, RSA,
120Sstevel@tonic-gate * lhash, DES, etc., code; not just the SSL code. The SSL documentation
130Sstevel@tonic-gate * included with this distribution is covered by the same copyright terms
140Sstevel@tonic-gate * except that the holder is Tim Hudson (tjh@cryptsoft.com).
150Sstevel@tonic-gate *
160Sstevel@tonic-gate * Copyright remains Eric Young's, and as such any Copyright notices in
170Sstevel@tonic-gate * the code are not to be removed.
180Sstevel@tonic-gate * If this package is used in a product, Eric Young should be given attribution
190Sstevel@tonic-gate * as the author of the parts of the library used.
200Sstevel@tonic-gate * This can be in the form of a textual message at program startup or
210Sstevel@tonic-gate * in documentation (online or textual) provided with the package.
220Sstevel@tonic-gate *
230Sstevel@tonic-gate * Redistribution and use in source and binary forms, with or without
240Sstevel@tonic-gate * modification, are permitted provided that the following conditions
250Sstevel@tonic-gate * are met:
260Sstevel@tonic-gate * 1. Redistributions of source code must retain the copyright
270Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer.
280Sstevel@tonic-gate * 2. Redistributions in binary form must reproduce the above copyright
290Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer in the
300Sstevel@tonic-gate * documentation and/or other materials provided with the distribution.
310Sstevel@tonic-gate * 3. All advertising materials mentioning features or use of this software
320Sstevel@tonic-gate * must display the following acknowledgement:
330Sstevel@tonic-gate * "This product includes cryptographic software written by
340Sstevel@tonic-gate * Eric Young (eay@cryptsoft.com)"
350Sstevel@tonic-gate * The word 'cryptographic' can be left out if the rouines from the library
360Sstevel@tonic-gate * being used are not cryptographic related :-).
370Sstevel@tonic-gate * 4. If you include any Windows specific code (or a derivative thereof) from
380Sstevel@tonic-gate * the apps directory (application code) you must include an acknowledgement:
390Sstevel@tonic-gate * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
400Sstevel@tonic-gate *
410Sstevel@tonic-gate * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
420Sstevel@tonic-gate * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
430Sstevel@tonic-gate * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
440Sstevel@tonic-gate * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
450Sstevel@tonic-gate * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
460Sstevel@tonic-gate * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
470Sstevel@tonic-gate * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
480Sstevel@tonic-gate * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
490Sstevel@tonic-gate * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
500Sstevel@tonic-gate * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
510Sstevel@tonic-gate * SUCH DAMAGE.
520Sstevel@tonic-gate *
530Sstevel@tonic-gate * The licence and distribution terms for any publically available version or
540Sstevel@tonic-gate * derivative of this code cannot be changed. i.e. this code cannot simply be
550Sstevel@tonic-gate * copied and put under another distribution licence
560Sstevel@tonic-gate * [including the GNU Public Licence.]
570Sstevel@tonic-gate */
580Sstevel@tonic-gate
590Sstevel@tonic-gate #include <stdio.h>
600Sstevel@tonic-gate #include "cryptlib.h"
61*2139Sjp161948
62*2139Sjp161948 #ifndef OPENSSL_NO_RSA
63*2139Sjp161948
640Sstevel@tonic-gate #include <openssl/evp.h>
650Sstevel@tonic-gate #include <openssl/objects.h>
660Sstevel@tonic-gate #include <openssl/x509.h>
67*2139Sjp161948 #include <openssl/rsa.h>
680Sstevel@tonic-gate
EVP_OpenInit(EVP_CIPHER_CTX * ctx,const EVP_CIPHER * type,const unsigned char * ek,int ekl,const unsigned char * iv,EVP_PKEY * priv)69*2139Sjp161948 int EVP_OpenInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type,
70*2139Sjp161948 const unsigned char *ek, int ekl, const unsigned char *iv,
71*2139Sjp161948 EVP_PKEY *priv)
720Sstevel@tonic-gate {
730Sstevel@tonic-gate unsigned char *key=NULL;
740Sstevel@tonic-gate int i,size=0,ret=0;
750Sstevel@tonic-gate
760Sstevel@tonic-gate if(type) {
770Sstevel@tonic-gate EVP_CIPHER_CTX_init(ctx);
780Sstevel@tonic-gate if(!EVP_DecryptInit_ex(ctx,type,NULL, NULL,NULL)) return 0;
790Sstevel@tonic-gate }
800Sstevel@tonic-gate
810Sstevel@tonic-gate if(!priv) return 1;
820Sstevel@tonic-gate
830Sstevel@tonic-gate if (priv->type != EVP_PKEY_RSA)
840Sstevel@tonic-gate {
850Sstevel@tonic-gate EVPerr(EVP_F_EVP_OPENINIT,EVP_R_PUBLIC_KEY_NOT_RSA);
860Sstevel@tonic-gate goto err;
870Sstevel@tonic-gate }
880Sstevel@tonic-gate
890Sstevel@tonic-gate size=RSA_size(priv->pkey.rsa);
900Sstevel@tonic-gate key=(unsigned char *)OPENSSL_malloc(size+2);
910Sstevel@tonic-gate if (key == NULL)
920Sstevel@tonic-gate {
930Sstevel@tonic-gate /* ERROR */
940Sstevel@tonic-gate EVPerr(EVP_F_EVP_OPENINIT,ERR_R_MALLOC_FAILURE);
950Sstevel@tonic-gate goto err;
960Sstevel@tonic-gate }
970Sstevel@tonic-gate
980Sstevel@tonic-gate i=EVP_PKEY_decrypt(key,ek,ekl,priv);
990Sstevel@tonic-gate if ((i <= 0) || !EVP_CIPHER_CTX_set_key_length(ctx, i))
1000Sstevel@tonic-gate {
1010Sstevel@tonic-gate /* ERROR */
1020Sstevel@tonic-gate goto err;
1030Sstevel@tonic-gate }
1040Sstevel@tonic-gate if(!EVP_DecryptInit_ex(ctx,NULL,NULL,key,iv)) goto err;
1050Sstevel@tonic-gate
1060Sstevel@tonic-gate ret=1;
1070Sstevel@tonic-gate err:
1080Sstevel@tonic-gate if (key != NULL) OPENSSL_cleanse(key,size);
1090Sstevel@tonic-gate OPENSSL_free(key);
1100Sstevel@tonic-gate return(ret);
1110Sstevel@tonic-gate }
1120Sstevel@tonic-gate
EVP_OpenFinal(EVP_CIPHER_CTX * ctx,unsigned char * out,int * outl)1130Sstevel@tonic-gate int EVP_OpenFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl)
1140Sstevel@tonic-gate {
1150Sstevel@tonic-gate int i;
1160Sstevel@tonic-gate
1170Sstevel@tonic-gate i=EVP_DecryptFinal_ex(ctx,out,outl);
1180Sstevel@tonic-gate EVP_DecryptInit_ex(ctx,NULL,NULL,NULL,NULL);
1190Sstevel@tonic-gate return(i);
1200Sstevel@tonic-gate }
1210Sstevel@tonic-gate #else /* !OPENSSL_NO_RSA */
1220Sstevel@tonic-gate
1230Sstevel@tonic-gate # ifdef PEDANTIC
1240Sstevel@tonic-gate static void *dummy=&dummy;
1250Sstevel@tonic-gate # endif
1260Sstevel@tonic-gate
1270Sstevel@tonic-gate #endif
128