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/* crypto/evp/p_open.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_RSA

#include <openssl/evp.h>
#include <openssl/objects.h>
#include <openssl/x509.h>
#include <openssl/rsa.h>

int EVP_OpenInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type,
	const unsigned char *ek, int ekl, const unsigned char *iv,
	EVP_PKEY *priv)
	{
	unsigned char *key=NULL;
	int i,size=0,ret=0;

	if(type) {	
		EVP_CIPHER_CTX_init(ctx);
		if(!EVP_DecryptInit_ex(ctx,type,NULL, NULL,NULL)) return 0;
	}

	if(!priv) return 1;

	if (priv->type != EVP_PKEY_RSA)
		{
		EVPerr(EVP_F_EVP_OPENINIT,EVP_R_PUBLIC_KEY_NOT_RSA);
		goto err;
                }

	size=RSA_size(priv->pkey.rsa);
	key=(unsigned char *)OPENSSL_malloc(size+2);
	if (key == NULL)
		{
		/* ERROR */
		EVPerr(EVP_F_EVP_OPENINIT,ERR_R_MALLOC_FAILURE);
		goto err;
		}

	i=EVP_PKEY_decrypt(key,ek,ekl,priv);
	if ((i <= 0) || !EVP_CIPHER_CTX_set_key_length(ctx, i))
		{
		/* ERROR */
		goto err;
		}
	if(!EVP_DecryptInit_ex(ctx,NULL,NULL,key,iv)) goto err;

	ret=1;
err:
	if (key != NULL) OPENSSL_cleanse(key,size);
	OPENSSL_free(key);
	return(ret);
	}

int EVP_OpenFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl)
	{
	int i;

	i=EVP_DecryptFinal_ex(ctx,out,outl);
	EVP_DecryptInit_ex(ctx,NULL,NULL,NULL,NULL);
	return(i);
	}
#else /* !OPENSSL_NO_RSA */

# ifdef PEDANTIC
static void *dummy=&dummy;
# endif

#endif
r *s,int l) { int n=0; fprintf(f,"%s",title); for( ; n < l ; ++n) { if((n%16) == 0) fprintf(f,"\n%04x",n); fprintf(f," %02x",s[n]); } fprintf(f,"\n"); } static int convert(unsigned char *s) { unsigned char *d; for(d=s ; *s ; s+=2,++d) { unsigned int n; if(!s[1]) { fprintf(stderr,"Odd number of hex digits!"); EXIT(4); } sscanf((char *)s,"%2x",&n); *d=(unsigned char)n; } return s-d; } static char *sstrsep(char **string, const char *delim) { char isdelim[256]; char *token = *string; if (**string == 0) return NULL; memset(isdelim, 0, 256); isdelim[0] = 1; while (*delim) { isdelim[(unsigned char)(*delim)] = 1; delim++; } while (!isdelim[(unsigned char)(**string)]) { (*string)++; } if (**string) { **string = 0; (*string)++; } return token; } static unsigned char *ustrsep(char **p,const char *sep) { return (unsigned char *)sstrsep(p,sep); } static int test1_exit(int ec) { EXIT(ec); return(0); /* To keep some compilers quiet */ } static void test1(const EVP_CIPHER *c,const unsigned char *key,int kn, const unsigned char *iv,int in, const unsigned char *plaintext,int pn, const unsigned char *ciphertext,int cn, int encdec) { EVP_CIPHER_CTX ctx; unsigned char out[4096]; int outl,outl2; printf("Testing cipher %s%s\n",EVP_CIPHER_name(c), (encdec == 1 ? "(encrypt)" : (encdec == 0 ? "(decrypt)" : "(encrypt/decrypt)"))); hexdump(stdout,"Key",key,kn); if(in) hexdump(stdout,"IV",iv,in); hexdump(stdout,"Plaintext",plaintext,pn); hexdump(stdout,"Ciphertext",ciphertext,cn); if(kn != c->key_len) { fprintf(stderr,"Key length doesn't match, got %d expected %d\n",kn, c->key_len); test1_exit(5); } EVP_CIPHER_CTX_init(&ctx); if (encdec != 0) { if(!EVP_EncryptInit_ex(&ctx,c,NULL,key,iv)) { fprintf(stderr,"EncryptInit failed\n"); ERR_print_errors_fp(stderr); test1_exit(10); } EVP_CIPHER_CTX_set_padding(&ctx,0); if(!EVP_EncryptUpdate(&ctx,out,&outl,plaintext,pn)) { fprintf(stderr,"Encrypt failed\n"); ERR_print_errors_fp(stderr); test1_exit(6); } if(!EVP_EncryptFinal_ex(&ctx,out+outl,&outl2)) { fprintf(stderr,"EncryptFinal failed\n"); ERR_print_errors_fp(stderr); test1_exit(7); } if(outl+outl2 != cn) { fprintf(stderr,"Ciphertext length mismatch got %d expected %d\n", outl+outl2,cn); test1_exit(8); } if(memcmp(out,ciphertext,cn)) { fprintf(stderr,"Ciphertext mismatch\n"); hexdump(stderr,"Got",out,cn); hexdump(stderr,"Expected",ciphertext,cn); test1_exit(9); } } if (encdec <= 0) { if(!EVP_DecryptInit_ex(&ctx,c,NULL,key,iv)) { fprintf(stderr,"DecryptInit failed\n"); ERR_print_errors_fp(stderr); test1_exit(11); } EVP_CIPHER_CTX_set_padding(&ctx,0); if(!EVP_DecryptUpdate(&ctx,out,&outl,ciphertext,cn)) { fprintf(stderr,"Decrypt failed\n"); ERR_print_errors_fp(stderr); test1_exit(6); } if(!EVP_DecryptFinal_ex(&ctx,out+outl,&outl2)) { fprintf(stderr,"DecryptFinal failed\n"); ERR_print_errors_fp(stderr); test1_exit(7); } if(outl+outl2 != cn) { fprintf(stderr,"Plaintext length mismatch got %d expected %d\n", outl+outl2,cn); test1_exit(8); } if(memcmp(out,plaintext,cn)) { fprintf(stderr,"Plaintext mismatch\n"); hexdump(stderr,"Got",out,cn); hexdump(stderr,"Expected",plaintext,cn); test1_exit(9); } } EVP_CIPHER_CTX_cleanup(&ctx); printf("\n"); } static int test_cipher(const char *cipher,const unsigned char *key,int kn, const unsigned char *iv,int in, const unsigned char *plaintext,int pn, const unsigned char *ciphertext,int cn, int encdec) { const EVP_CIPHER *c; c=EVP_get_cipherbyname(cipher); if(!c) return 0; test1(c,key,kn,iv,in,plaintext,pn,ciphertext,cn,encdec); return 1; } static int test_digest(const char *digest, const unsigned char *plaintext,int pn, const unsigned char *ciphertext, unsigned int cn) { const EVP_MD *d; EVP_MD_CTX ctx; unsigned char md[EVP_MAX_MD_SIZE]; unsigned int mdn; d=EVP_get_digestbyname(digest); if(!d) return 0; printf("Testing digest %s\n",EVP_MD_name(d)); hexdump(stdout,"Plaintext",plaintext,pn); hexdump(stdout,"Digest",ciphertext,cn); EVP_MD_CTX_init(&ctx); if(!EVP_DigestInit_ex(&ctx,d, NULL)) { fprintf(stderr,"DigestInit failed\n"); ERR_print_errors_fp(stderr); EXIT(100); } if(!EVP_DigestUpdate(&ctx,plaintext,pn)) { fprintf(stderr,"DigestUpdate failed\n"); ERR_print_errors_fp(stderr); EXIT(101); } if(!EVP_DigestFinal_ex(&ctx,md,&mdn)) { fprintf(stderr,"DigestFinal failed\n"); ERR_print_errors_fp(stderr); EXIT(101); } EVP_MD_CTX_cleanup(&ctx); if(mdn != cn) { fprintf(stderr,"Digest length mismatch, got %d expected %d\n",mdn,cn); EXIT(102); } if(memcmp(md,ciphertext,cn)) { fprintf(stderr,"Digest mismatch\n"); hexdump(stderr,"Got",md,cn); hexdump(stderr,"Expected",ciphertext,cn); EXIT(103); } printf("\n"); EVP_MD_CTX_cleanup(&ctx); return 1; } int main(int argc,char **argv) { const char *szTestFile; FILE *f; if(argc != 2) { fprintf(stderr,"%s <test file>\n",argv[0]); EXIT(1); } CRYPTO_malloc_debug_init(); CRYPTO_set_mem_debug_options(V_CRYPTO_MDEBUG_ALL); CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON); szTestFile=argv[1]; f=fopen(szTestFile,"r"); if(!f) { perror(szTestFile); EXIT(2); } /* Load up the software EVP_CIPHER and EVP_MD definitions */ OpenSSL_add_all_ciphers(); OpenSSL_add_all_digests(); #ifndef OPENSSL_NO_ENGINE /* Load all compiled-in ENGINEs */ ENGINE_load_builtin_engines(); #endif #if 0 OPENSSL_config(); #endif #ifndef OPENSSL_NO_ENGINE /* Register all available ENGINE implementations of ciphers and digests. * This could perhaps be changed to "ENGINE_register_all_complete()"? */ ENGINE_register_all_ciphers(); ENGINE_register_all_digests(); /* If we add command-line options, this statement should be switchable. * It'll prevent ENGINEs being ENGINE_init()ialised for cipher/digest use if * they weren't already initialised. */ /* ENGINE_set_cipher_flags(ENGINE_CIPHER_FLAG_NOINIT); */ #endif for( ; ; ) { char line[4096]; char *p; char *cipher; unsigned char *iv,*key,*plaintext,*ciphertext; int encdec; int kn,in,pn,cn; if(!fgets((char *)line,sizeof line,f)) break; if(line[0] == '#' || line[0] == '\n') continue; p=line; cipher=sstrsep(&p,":"); key=ustrsep(&p,":"); iv=ustrsep(&p,":"); plaintext=ustrsep(&p,":"); ciphertext=ustrsep(&p,":"); if (p[-1] == '\n') { p[-1] = '\0'; encdec = -1; } else { encdec = atoi(sstrsep(&p,"\n")); } kn=convert(key); in=convert(iv); pn=convert(plaintext); cn=convert(ciphertext); if(!test_cipher(cipher,key,kn,iv,in,plaintext,pn,ciphertext,cn,encdec) && !test_digest(cipher,plaintext,pn,ciphertext,cn)) { #ifdef OPENSSL_NO_AES if (strstr(cipher, "AES") == cipher) { fprintf(stdout, "Cipher disabled, skipping %s\n", cipher); continue; } #endif #ifdef OPENSSL_NO_DES if (strstr(cipher, "DES") == cipher) { fprintf(stdout, "Cipher disabled, skipping %s\n", cipher); continue; } #endif #ifdef OPENSSL_NO_RC4 if (strstr(cipher, "RC4") == cipher) { fprintf(stdout, "Cipher disabled, skipping %s\n", cipher); continue; } #endif fprintf(stderr,"Can't find %s\n",cipher); EXIT(3); } } #ifndef OPENSSL_NO_ENGINE ENGINE_cleanup(); #endif EVP_cleanup(); CRYPTO_cleanup_all_ex_data(); ERR_remove_state(0); ERR_free_strings(); CRYPTO_mem_leaks_fp(stderr); return 0; }