--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/ssl/libcrypto/src/crypto/pkcs7/dec.c Tue Feb 02 02:01:42 2010 +0200
@@ -0,0 +1,248 @@
+/* crypto/pkcs7/verify.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 <stdlib.h>
+#include <string.h>
+#include <openssl/bio.h>
+#include <openssl/x509.h>
+#include <openssl/pem.h>
+#include <openssl/err.h>
+#include <openssl/asn1.h>
+
+int verify_callback(int ok, X509_STORE_CTX *ctx);
+
+BIO *bio_err=NULL;
+
+int main(argc,argv)
+int argc;
+char *argv[];
+ {
+ char *keyfile=NULL;
+ BIO *in;
+ EVP_PKEY *pkey;
+ X509 *x509;
+ PKCS7 *p7;
+ PKCS7_SIGNER_INFO *si;
+ X509_STORE_CTX cert_ctx;
+ X509_STORE *cert_store=NULL;
+ BIO *data,*detached=NULL,*p7bio=NULL;
+ char buf[1024*4];
+ unsigned char *pp;
+ int i,printit=0;
+ STACK_OF(PKCS7_SIGNER_INFO) *sk;
+
+ OpenSSL_add_all_algorithms();
+ bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
+
+ data=BIO_new(BIO_s_file());
+ pp=NULL;
+ while (argc > 1)
+ {
+ argc--;
+ argv++;
+ if (strcmp(argv[0],"-p") == 0)
+ {
+ printit=1;
+ }
+ else if ((strcmp(argv[0],"-k") == 0) && (argc >= 2)) {
+ keyfile = argv[1];
+ argc-=1;
+ argv+=1;
+ } else if ((strcmp(argv[0],"-d") == 0) && (argc >= 2))
+ {
+ detached=BIO_new(BIO_s_file());
+ if (!BIO_read_filename(detached,argv[1]))
+ goto err;
+ argc-=1;
+ argv+=1;
+ }
+ else break;
+ }
+
+ if (!BIO_read_filename(data,argv[0])) goto err;
+
+ if(!keyfile) {
+ fprintf(stderr, "No private key file specified\n");
+ goto err;
+ }
+
+ if ((in=BIO_new_file(keyfile,"r")) == NULL) goto err;
+ if ((x509=PEM_read_bio_X509(in,NULL,NULL,NULL)) == NULL) goto err;
+ BIO_reset(in);
+ if ((pkey=PEM_read_bio_PrivateKey(in,NULL,NULL,NULL)) == NULL)
+ goto err;
+ BIO_free(in);
+
+ if (pp == NULL)
+ BIO_set_fp(data,stdin,BIO_NOCLOSE);
+
+
+ /* Load the PKCS7 object from a file */
+ if ((p7=PEM_read_bio_PKCS7(data,NULL,NULL,NULL)) == NULL) goto err;
+
+
+
+ /* This stuff is being setup for certificate verification.
+ * When using SSL, it could be replaced with a
+ * cert_stre=SSL_CTX_get_cert_store(ssl_ctx); */
+ cert_store=X509_STORE_new();
+ X509_STORE_set_default_paths(cert_store);
+ X509_STORE_load_locations(cert_store,NULL,"../../certs");
+ X509_STORE_set_verify_cb_func(cert_store,verify_callback);
+
+ ERR_clear_error();
+
+ /* We need to process the data */
+ /* We cannot support detached encryption */
+ p7bio=PKCS7_dataDecode(p7,pkey,detached,x509);
+
+ if (p7bio == NULL)
+ {
+ printf("problems decoding\n");
+ goto err;
+ }
+
+ /* We now have to 'read' from p7bio to calculate digests etc. */
+ for (;;)
+ {
+ i=BIO_read(p7bio,buf,sizeof(buf));
+ /* print it? */
+ if (i <= 0) break;
+ fwrite(buf,1, i, stdout);
+ }
+
+ /* We can now verify signatures */
+ sk=PKCS7_get_signer_info(p7);
+ if (sk == NULL)
+ {
+ fprintf(stderr, "there are no signatures on this data\n");
+ }
+ else
+ {
+ /* Ok, first we need to, for each subject entry,
+ * see if we can verify */
+ ERR_clear_error();
+ for (i=0; i<sk_PKCS7_SIGNER_INFO_num(sk); i++)
+ {
+ si=sk_PKCS7_SIGNER_INFO_value(sk,i);
+ i=PKCS7_dataVerify(cert_store,&cert_ctx,p7bio,p7,si);
+ if (i <= 0)
+ goto err;
+ else
+ fprintf(stderr,"Signature verified\n");
+ }
+ }
+ X509_STORE_free(cert_store);
+
+ exit(0);
+err:
+ ERR_load_crypto_strings();
+ ERR_print_errors_fp(stderr);
+ exit(1);
+ }
+
+/* should be X509 * but we can just have them as char *. */
+int verify_callback(int ok, X509_STORE_CTX *ctx)
+ {
+ char buf[256];
+ X509 *err_cert;
+ int err,depth;
+
+ err_cert=X509_STORE_CTX_get_current_cert(ctx);
+ err= X509_STORE_CTX_get_error(ctx);
+ depth= X509_STORE_CTX_get_error_depth(ctx);
+
+ X509_NAME_oneline(X509_get_subject_name(err_cert),buf,256);
+ BIO_printf(bio_err,"depth=%d %s\n",depth,buf);
+ if (!ok)
+ {
+ BIO_printf(bio_err,"verify error:num=%d:%s\n",err,
+ X509_verify_cert_error_string(err));
+ if (depth < 6)
+ {
+ ok=1;
+ X509_STORE_CTX_set_error(ctx,X509_V_OK);
+ }
+ else
+ {
+ ok=0;
+ X509_STORE_CTX_set_error(ctx,X509_V_ERR_CERT_CHAIN_TOO_LONG);
+ }
+ }
+ switch (ctx->error)
+ {
+ case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
+ X509_NAME_oneline(X509_get_issuer_name(ctx->current_cert),buf,256);
+ BIO_printf(bio_err,"issuer= %s\n",buf);
+ break;
+ case X509_V_ERR_CERT_NOT_YET_VALID:
+ case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
+ BIO_printf(bio_err,"notBefore=");
+ ASN1_UTCTIME_print(bio_err,X509_get_notBefore(ctx->current_cert));
+ BIO_printf(bio_err,"\n");
+ break;
+ case X509_V_ERR_CERT_HAS_EXPIRED:
+ case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
+ BIO_printf(bio_err,"notAfter=");
+ ASN1_UTCTIME_print(bio_err,X509_get_notAfter(ctx->current_cert));
+ BIO_printf(bio_err,"\n");
+ break;
+ }
+ BIO_printf(bio_err,"verify return:%d\n",ok);
+ return(ok);
+ }