Update ZUC algorithm with EVP module

128-EEA3, 128-EIA3, byte-order and tests need to be updated.
2026-05-12 11:26:25 +08:00 · 2018-01-03 15:26:09 +08:00
parent f4e43474ab
commit c41e135604
12 changed files with 360 additions and 356 deletions
--- a/crypto/evp/e_zuc.c
+++ b/crypto/evp/e_zuc.c
@@ -0,0 +1,112 @@
+/* ====================================================================
+ * Copyright (c) 2014 - 2018 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 <openssl/evp.h>
+#include <openssl/crypto.h>
+#include <openssl/objects.h>
+#include "evp_locl.h"
+# include "internal/evp_int.h"
+
+#ifndef OPENSSL_NO_ZUC
+
+# include <openssl/zuc.h>
+
+typedef struct {
+	ZUC_KEY ks;
+} EVP_ZUC_KEY;
+
+
+static int zuc_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
+	const unsigned char *iv, int enc)
+{
+	EVP_ZUC_KEY *dctx = EVP_C_DATA(EVP_ZUC_KEY, ctx);
+	ZUC_set_key(&dctx->ks, key, iv);
+	return 1;
+}
+
+static int zuc_do_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+	const unsigned char *in, size_t len)
+{
+	EVP_ZUC_KEY *dctx = EVP_C_DATA(EVP_ZUC_KEY, ctx);
+	unsigned char *buf = EVP_CIPHER_CTX_buf_noconst(ctx);
+	unsigned int n = EVP_CIPHER_CTX_num(ctx);
+	size_t l = 0;
+
+	while (l < len) {
+		if (n == 0) {
+			ZUC_generate_keystream(&dctx->ks, 4, (uint32_t *)buf);
+		}
+		out[l] = in[l] ^ buf[n];
+		++l;
+		n = (n + 1) % 16;
+	}
+
+	EVP_CIPHER_CTX_set_num(ctx, n);
+	return 1;
+}
+
+const EVP_CIPHER zuc_cipher = {
+	NID_zuc,
+	1,
+	ZUC_KEY_LENGTH,
+	ZUC_IV_LENGTH,
+	0,
+	zuc_init_key,
+	zuc_do_cipher,
+	NULL,
+	sizeof(EVP_ZUC_KEY),
+	NULL,NULL,NULL,NULL,
+};
+
+const EVP_CIPHER *EVP_zuc(void)
+{
+	return &zuc_cipher;
+}
+#endif /* OPENSSL_NO_ZUC */