Init commit of gmssl-v3

tools/sm2encrypt.c

@@ -0,0 +1,143 @@
+/*
+ * 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/hex.h>
+#include <gmssl/sm2.h>
+#include <gmssl/pem.h>
+#include <gmssl/pkcs8.h>
+#include <gmssl/x509.h>
+#include <gmssl/error.h>
+
+
+int main(int argc, char **argv)
+{
+	int ret;
+	char *prog = basename(argv[0]);
+	const char *keyfile = NULL;
+	const char *certfile = NULL;
+	FILE *keyfp = NULL;
+	FILE *certfp = NULL;
+	X509_CERTIFICATE cert;
+	SM2_KEY key;
+	uint8_t inbuf[SM2_MAX_PLAINTEXT_SIZE];
+	ssize_t inlen;
+	uint8_t outbuf[SM2_MAX_CIPHERTEXT_SIZE];
+	size_t outlen = sizeof(outbuf);
+
+	if (argc < 2) {
+bad:
+		fprintf(stderr, "%s : error options\n", prog);
+help:
+		fprintf(stderr, "usage:\n");
+		fprintf(stderr, "    %s -pubkey key.pem < file\n", prog);
+		fprintf(stderr, "    %s -cert cert.pem < file\n", prog);
+		fprintf(stderr, "\n");
+		return 1;
+	}
+
+	argc--;
+	argv++;
+	while (argc > 1) {
+		if (!strcmp(*argv, "-help")) {
+			goto help;
+		} else if (!strcmp(*argv, "-pubkey")) {
+			if (--argc < 1) goto bad;
+			keyfile = *(++argv);
+		} else if (!strcmp(*argv, "-cert")) {
+			if (--argc < 1) goto bad;
+			certfile = *(++argv);
+		} else {
+			goto help;
+		}
+		argc--;
+		argv++;
+	}
+
+	if ((!keyfile && !certfile) || (keyfile && certfile)) {
+		error_print();
+		return -1;
+	}
+	if (keyfile) {
+		if (!(keyfp = fopen(keyfile, "r"))) {
+			error_print();
+			return -1;
+		}
+		if (sm2_public_key_info_from_pem(&key, keyfp) != 1) {
+			error_print();
+			return -1;
+		}
+	} else {
+		if (!(certfp = fopen(certfile, "r"))) {
+			error_print();
+			return -1;
+		}
+		if (x509_certificate_from_pem(&cert, certfp) != 1) {
+			error_print();
+			return -1;
+		}
+		if (x509_certificate_get_public_key(&cert, &key) != 1) {
+			error_print();
+			return -1;
+		}
+	}
+
+	if ((inlen = read(STDIN_FILENO, inbuf, sizeof(inbuf))) <= 0) {
+		error_print();
+		return -1;
+	}
+	if (sm2_encrypt(&key, inbuf, inlen, outbuf, &outlen) != 1) {
+		error_print();
+		return -1;
+	}
+	format_bytes(stdout, 0, 0, "", outbuf, outlen);
+	return 1;
+}