Init commit of gmssl-v3

tools/certverify.c

@@ -0,0 +1,194 @@
+/*
+ * Copyright (c) 2021 - 2021 The GmSSL Project.  All rights reserved.
+ *
+ * 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 above 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 acknowledgment:
+ *    "This product includes software developed by the GmSSL Project.
+ *    (http://gmssl.org/)"
+ *
+ * 4. The name "GmSSL Project" must not be used to endorse or promote
+ *    products derived from this software without prior written
+ *    permission. For written permission, please contact
+ *    guanzhi1980@gmail.com.
+ *
+ * 5. Products derived from this software may not be called "GmSSL"
+ *    nor may "GmSSL" appear in their names without prior written
+ *    permission of the GmSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the GmSSL Project
+ *    (http://gmssl.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE GmSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED 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 GmSSL PROJECT OR
+ * ITS 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.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <gmssl/pem.h>
+#include <gmssl/x509.h>
+#include <gmssl/pkcs8.h>
+#include <gmssl/rand.h>
+#include <gmssl/error.h>
+
+
+static int verify_cert(const X509_CERTIFICATE *cert, const X509_CERTIFICATE *cacert)
+{
+	int ret;
+	SM2_KEY ca_pubkey;
+
+	if (x509_name_equ(&cert->tbs_certificate.issuer, &cacert->tbs_certificate.subject) != 1) {
+		error_print();
+		return -1;
+	}
+	if (x509_certificate_get_public_key(cacert, &ca_pubkey) != 1) {
+		error_print();
+		return -1;
+	}
+	if ((ret = x509_certificate_verify(cert, &ca_pubkey)) < 0) {
+		error_print();
+		return -1;
+	}
+	return ret;
+}
+
+static int find_cacert(X509_CERTIFICATE *cacert, FILE *fp, const X509_NAME *issuer)
+{
+	int ret;
+	for (;;) {
+		if ((ret = x509_certificate_from_pem(cacert, fp)) != 1) {
+			if (ret < 0) error_print();
+			return ret;
+		}
+		if (x509_name_equ(&cacert->tbs_certificate.subject, issuer) == 1) {
+			return 1;
+		}
+	}
+	return 0;
+}
+
+
+void print_usage(const char *prog)
+{
+	printf("Usage: %s command [options] ...\n", prog);
+	printf("\n");
+	printf("Options:\n");
+	printf("  -cert <file>        PKCS #10 certificate request file\n");
+	printf("  -cacert <file>     CA certificate file\n");
+}
+
+int main(int argc, char **argv)
+{
+	int ret = -1;
+	char *prog = basename(argv[0]);
+	char *certfile = NULL;
+	char *cacertfile = NULL;
+	FILE *certfp = NULL;
+	FILE *cacertfp = NULL;
+
+	X509_CERTIFICATE cert1;
+	X509_CERTIFICATE cert2;
+	X509_CERTIFICATE *cert = &cert1;
+	X509_CERTIFICATE *cacert = &cert2;
+	X509_CERTIFICATE *tmpcert;
+
+	SM2_KEY ca_pubkey;
+
+	argc--;
+	argv++;
+	while (argc >= 1) {
+		if (!strcmp(*argv, "-help")) {
+			print_usage(prog);
+			return 0;
+
+		} else if (!strcmp(*argv, "-cert")) {
+			if (--argc < 1) goto bad;
+			certfile = *(++argv);
+			if (!(certfp = fopen(certfile, "r"))) {
+				error_print();
+				return -1;
+			}
+		} else if (!strcmp(*argv, "-cacert")) {
+			if (--argc < 1) goto bad;
+			cacertfile = *(++argv);
+			if (!(cacertfp = fopen(cacertfile, "r"))) {
+				error_print();
+				return -1;
+			}
+		} else {
+			print_usage(prog);
+			return 0;
+			break;
+		}
+
+		argc--;
+		argv++;
+	}
+
+	if (!certfp || !cacertfp) {
+		print_usage(prog);
+		return -1;
+	}
+
+	if (x509_certificate_from_pem(cert, certfp) != 1) {
+		error_print();
+		return -1;
+	}
+	for (;;) {
+		if ((ret = x509_certificate_from_pem(cacert, certfp)) != 1) {
+			if (ret < 0) error_print();
+			break;
+		}
+		if (verify_cert(cert, cacert) != 1) {
+			error_print();
+			return -1;
+		}
+		tmpcert = cacert;
+		cert = cacert;
+		cacert = tmpcert;
+	}
+
+	if (find_cacert(cacert, cacertfp, &cert->tbs_certificate.issuer) != 1) {
+		error_print();
+		return -1;
+	}
+	if ((ret = verify_cert(cert, cacert)) < 0) {
+		error_print();
+		return -1;
+	}
+	printf("Verification %s\n", ret ? "success" : "failure");
+
+	ret = 0;
+	goto end;
+
+bad:
+	fprintf(stderr, "%s: commands should not be used together\n", prog);
+
+end:
+	return ret;
+}