1 files changed, 248 insertions, 0 deletions
diff --git a/crypto/openssl/crypto/pkcs7/dec.c b/crypto/openssl/crypto/pkcs7/dec.c
new file mode 100644
index 0000000..6752ec5
--- /dev/null
+++ b/crypto/openssl/crypto/pkcs7/dec.c
@@ -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);
+	}