update

tools/sm4.c

@@ -0,0 +1,217 @@
+/*
+ * Copyright (c) 2014 - 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 <gmssl/sm4.h>
+#include <gmssl/hex.h>
+#include <gmssl/error.h>
+
+static const char *options = "-key hex -iv hex [-in file] [-out file]";
+
+
+int main(int argc, char **argv)
+{
+	char *prog = argv[0];
+	char *keystr = NULL;
+	char *ivstr = NULL;
+	char *infile = NULL;
+	char *outfile = NULL;
+	uint8_t key[16];
+	uint8_t iv[16];
+	size_t keylen = sizeof(key);
+	size_t ivlen = sizeof(iv);
+	FILE *infp = stdin;
+	FILE *outfp = stdout;
+	int enc = -1;
+	SM4_CBC_CTX cbc_ctx;
+	uint8_t inbuf[4096];
+	size_t inlen;
+	uint8_t outbuf[4196];
+	size_t outlen;
+
+	if (argc < 2) {
+		fprintf(stderr, "usage: %s %s\n", prog, options);
+		return 1;
+	}
+
+	argc--;
+	argv++;
+
+	while (argc > 0) {
+		if (!strcmp(*argv, "-help")) {
+			fprintf(stderr, "usage: %s %s\n", prog, options);
+			return 0;
+		} else if (!strcmp(*argv, "-key")) {
+			if (--argc < 1) goto bad;
+			keystr = *(++argv);
+		} else if (!strcmp(*argv, "-iv")) {
+			if (--argc < 1) goto bad;
+			ivstr = *(++argv);
+		} else if (!strcmp(*argv, "-encrypt")) {
+			enc = 1;
+		} else if (!strcmp(*argv, "-decrypt")) {
+			enc = 0;
+		} else if (!strcmp(*argv, "-in")) {
+			if (--argc < 1) goto bad;
+			infile = *(++argv);
+		} else if (!strcmp(*argv, "-out")) {
+			if (--argc < 1) goto bad;
+			outfile = *(++argv);
+		} else {
+			fprintf(stderr, "%s: illegal option '%s'\n", prog, *argv);
+			return 1;
+bad:
+			fprintf(stderr, "%s: no option value\n", prog);
+			return 1;
+		}
+
+		argc--;
+		argv++;
+	}
+
+
+	if (!keystr) {
+		error_print();
+		return -1;
+	}
+	if (strlen(keystr) != 32) {
+		printf("keystr len = %d\n", strlen(keystr));
+		error_print();
+		return -1;
+	}
+	if (hex_to_bytes(keystr, strlen(keystr), key, &keylen) != 1) {
+		error_print();
+		return -1;
+	}
+
+	if (!ivstr) {
+		error_print();
+		return -1;
+	}
+	if (strlen(ivstr) != 32) {
+		error_print();
+		return -1;
+	}
+	if (hex_to_bytes(ivstr, strlen(ivstr), iv, &ivlen) != 1) {
+		error_print();
+		return -1;
+	}
+
+	if (infile) {
+		if (!(infp = fopen(infile, "r"))) {
+			error_print();
+			return -1;
+		}
+	}
+	if (outfile) {
+		if (!(outfp = fopen(outfile, "w"))) {
+			error_print();
+			return -1;
+		}
+	}
+
+	if (enc < 0) {
+		error_print();
+		return -1;
+	}
+
+	if (enc) {
+		if (sm4_cbc_encrypt_init(&cbc_ctx, key, iv) != 1) {
+			error_print();
+			return -1;
+		}
+		while ((inlen = fread(inbuf, 1, sizeof(inbuf), infp)) > 0) {
+			if (sm4_cbc_encrypt_update(&cbc_ctx, inbuf, inlen, outbuf, &outlen) != 1) {
+				error_print();
+				return -1;
+			}
+			if (fwrite(outbuf, 1, outlen, outfp) != outlen) {
+				error_print();
+				return -1;
+			}
+		}
+		if (sm4_cbc_encrypt_finish(&cbc_ctx, outbuf, &outlen) != 1) {
+			error_print();
+			return -1;
+		}
+		if (fwrite(outbuf, 1, outlen, outfp) != outlen) {
+			error_print();
+			return -1;
+		}
+
+
+
+	} else {
+		if (sm4_cbc_decrypt_init(&cbc_ctx, key, iv) != 1) {
+			error_print();
+			return -1;
+		}
+		while ((inlen = fread(inbuf, 1, sizeof(inbuf), infp)) > 0) {
+			if (sm4_cbc_decrypt_update(&cbc_ctx, inbuf, inlen, outbuf, &outlen) != 1) {
+				error_print();
+				return -1;
+			}
+			if (fwrite(outbuf, 1, outlen, outfp) != outlen) {
+				error_print();
+				return -1;
+			}
+		}
+		if (sm4_cbc_decrypt_finish(&cbc_ctx, outbuf, &outlen) != 1) {
+			error_print();
+			return -1;
+		}
+		if (fwrite(outbuf, 1, outlen, outfp) != outlen) {
+			error_print();
+			return -1;
+		}
+	}
+
+	return 0;
+}