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-rw-r--r--mozilla/security/nss/cmd/p7verify/p7verify.c308
1 files changed, 308 insertions, 0 deletions
diff --git a/mozilla/security/nss/cmd/p7verify/p7verify.c b/mozilla/security/nss/cmd/p7verify/p7verify.c
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+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is the Netscape security libraries.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1994-2000
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+/*
+ * p7verify -- A command to do a verification of a *detached* pkcs7 signature.
+ *
+ * $Id: p7verify.c,v 1.10 2008/08/08 23:47:57 julien.pierre.boogz%sun.com Exp $
+ */
+
+#include "nspr.h"
+#include "secutil.h"
+#include "plgetopt.h"
+#include "secpkcs7.h"
+#include "cert.h"
+#include "certdb.h"
+#include "secoid.h"
+#include "sechash.h" /* for HASH_GetHashObject() */
+#include "nss.h"
+
+#if defined(XP_UNIX)
+#include <unistd.h>
+#endif
+
+#include <stdio.h>
+#include <string.h>
+
+#if (defined(XP_WIN) && !defined(WIN32)) || (defined(__sun) && !defined(SVR4))
+extern int fread(char *, size_t, size_t, FILE*);
+extern int fprintf(FILE *, char *, ...);
+#endif
+
+
+static HASH_HashType
+AlgorithmToHashType(SECAlgorithmID *digestAlgorithms)
+{
+
+ SECOidTag tag;
+
+ tag = SECOID_GetAlgorithmTag(digestAlgorithms);
+
+ switch (tag) {
+ case SEC_OID_MD2:
+ return HASH_AlgMD2;
+ case SEC_OID_MD5:
+ return HASH_AlgMD5;
+ case SEC_OID_SHA1:
+ return HASH_AlgSHA1;
+ default:
+ fprintf(stderr, "should never get here\n");
+ return HASH_AlgNULL;
+ }
+}
+
+static int
+DigestFile(unsigned char *digest, unsigned int *len, unsigned int maxLen,
+ FILE *inFile, HASH_HashType hashType)
+{
+ int nb;
+ unsigned char ibuf[4096];
+ const SECHashObject *hashObj;
+ void *hashcx;
+
+ hashObj = HASH_GetHashObject(hashType);
+
+ hashcx = (* hashObj->create)();
+ if (hashcx == NULL)
+ return -1;
+
+ (* hashObj->begin)(hashcx);
+
+ for (;;) {
+ if (feof(inFile)) break;
+ nb = fread(ibuf, 1, sizeof(ibuf), inFile);
+ if (nb != sizeof(ibuf)) {
+ if (nb == 0) {
+ if (ferror(inFile)) {
+ PORT_SetError(SEC_ERROR_IO);
+ (* hashObj->destroy)(hashcx, PR_TRUE);
+ return -1;
+ }
+ /* eof */
+ break;
+ }
+ }
+ (* hashObj->update)(hashcx, ibuf, nb);
+ }
+
+ (* hashObj->end)(hashcx, digest, len, maxLen);
+ (* hashObj->destroy)(hashcx, PR_TRUE);
+
+ return 0;
+}
+
+
+static void
+Usage(char *progName)
+{
+ fprintf(stderr,
+ "Usage: %s -c content -s signature [-d dbdir] [-u certusage]\n",
+ progName);
+ fprintf(stderr, "%-20s content file that was signed\n",
+ "-c content");
+ fprintf(stderr, "%-20s file containing signature for that content\n",
+ "-s signature");
+ fprintf(stderr,
+ "%-20s Key/Cert database directory (default is ~/.netscape)\n",
+ "-d dbdir");
+ fprintf(stderr, "%-20s Define the type of certificate usage (default is certUsageEmailSigner)\n",
+ "-u certusage");
+ fprintf(stderr, "%-25s 0 - certUsageSSLClient\n", " ");
+ fprintf(stderr, "%-25s 1 - certUsageSSLServer\n", " ");
+ fprintf(stderr, "%-25s 2 - certUsageSSLServerWithStepUp\n", " ");
+ fprintf(stderr, "%-25s 3 - certUsageSSLCA\n", " ");
+ fprintf(stderr, "%-25s 4 - certUsageEmailSigner\n", " ");
+ fprintf(stderr, "%-25s 5 - certUsageEmailRecipient\n", " ");
+ fprintf(stderr, "%-25s 6 - certUsageObjectSigner\n", " ");
+ fprintf(stderr, "%-25s 7 - certUsageUserCertImport\n", " ");
+ fprintf(stderr, "%-25s 8 - certUsageVerifyCA\n", " ");
+ fprintf(stderr, "%-25s 9 - certUsageProtectedObjectSigner\n", " ");
+ fprintf(stderr, "%-25s 10 - certUsageStatusResponder\n", " ");
+ fprintf(stderr, "%-25s 11 - certUsageAnyCA\n", " ");
+
+ exit(-1);
+}
+
+static int
+HashDecodeAndVerify(FILE *out, FILE *content, PRFileDesc *signature,
+ SECCertUsage usage, char *progName)
+{
+ SECItem derdata;
+ SEC_PKCS7ContentInfo *cinfo;
+ SEC_PKCS7SignedData *signedData;
+ HASH_HashType digestType;
+ SECItem digest;
+ unsigned char buffer[32];
+
+ if (SECU_ReadDERFromFile(&derdata, signature, PR_FALSE) != SECSuccess) {
+ SECU_PrintError(progName, "error reading signature file");
+ return -1;
+ }
+
+ cinfo = SEC_PKCS7DecodeItem(&derdata, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL);
+ if (cinfo == NULL)
+ return -1;
+
+ if (! SEC_PKCS7ContentIsSigned(cinfo)) {
+ fprintf (out, "Signature file is pkcs7 data, but not signed.\n");
+ return -1;
+ }
+
+ signedData = cinfo->content.signedData;
+
+ /* assume that there is only one digest algorithm for now */
+ digestType = AlgorithmToHashType(signedData->digestAlgorithms[0]);
+ if (digestType == HASH_AlgNULL) {
+ fprintf (out, "Invalid hash algorithmID\n");
+ return -1;
+ }
+
+ digest.data = buffer;
+ if (DigestFile (digest.data, &digest.len, 32, content, digestType)) {
+ SECU_PrintError (progName, "problem computing message digest");
+ return -1;
+ }
+
+ fprintf(out, "Signature is ");
+ if (SEC_PKCS7VerifyDetachedSignature (cinfo, usage, &digest, digestType,
+ PR_FALSE))
+ fprintf(out, "valid.\n");
+ else
+ fprintf(out, "invalid (Reason: %s).\n",
+ SECU_Strerror(PORT_GetError()));
+
+ SEC_PKCS7DestroyContentInfo(cinfo);
+ return 0;
+}
+
+
+int
+main(int argc, char **argv)
+{
+ char *progName;
+ FILE *contentFile, *outFile;
+ PRFileDesc *signatureFile;
+ SECCertUsage certUsage = certUsageEmailSigner;
+ PLOptState *optstate;
+ PLOptStatus status;
+ SECStatus rv;
+
+ progName = strrchr(argv[0], '/');
+ progName = progName ? progName+1 : argv[0];
+
+ contentFile = NULL;
+ signatureFile = NULL;
+ outFile = NULL;
+
+ /*
+ * Parse command line arguments
+ */
+ optstate = PL_CreateOptState(argc, argv, "c:d:o:s:u:");
+ while ((status = PL_GetNextOpt(optstate)) == PL_OPT_OK) {
+ switch (optstate->option) {
+ case '?':
+ Usage(progName);
+ break;
+
+ case 'c':
+ contentFile = fopen(optstate->value, "r");
+ if (!contentFile) {
+ fprintf(stderr, "%s: unable to open \"%s\" for reading\n",
+ progName, optstate->value);
+ return -1;
+ }
+ break;
+
+ case 'd':
+ SECU_ConfigDirectory(optstate->value);
+ break;
+
+ case 'o':
+ outFile = fopen(optstate->value, "w");
+ if (!outFile) {
+ fprintf(stderr, "%s: unable to open \"%s\" for writing\n",
+ progName, optstate->value);
+ return -1;
+ }
+ break;
+
+ case 's':
+ signatureFile = PR_Open(optstate->value, PR_RDONLY, 0);
+ if (!signatureFile) {
+ fprintf(stderr, "%s: unable to open \"%s\" for reading\n",
+ progName, optstate->value);
+ return -1;
+ }
+ break;
+
+ case 'u': {
+ int usageType;
+
+ usageType = atoi (strdup(optstate->value));
+ if (usageType < certUsageSSLClient || usageType > certUsageAnyCA)
+ return -1;
+ certUsage = (SECCertUsage)usageType;
+ break;
+ }
+
+ }
+ }
+
+ if (!contentFile) Usage (progName);
+ if (!signatureFile) Usage (progName);
+ if (!outFile) outFile = stdout;
+
+ /* Call the NSS initialization routines */
+ PR_Init(PR_SYSTEM_THREAD, PR_PRIORITY_NORMAL, 1);
+ rv = NSS_Init(SECU_ConfigDirectory(NULL));
+ if (rv != SECSuccess) {
+ SECU_PrintPRandOSError(progName);
+ return -1;
+ }
+
+ if (HashDecodeAndVerify(outFile, contentFile, signatureFile,
+ certUsage, progName)) {
+ SECU_PrintError(progName, "problem decoding/verifying signature");
+ return -1;
+ }
+
+ if (NSS_Shutdown() != SECSuccess) {
+ exit(1);
+ }
+
+ return 0;
+}
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