Fourth phase EVP revision.

Declare ciphers in terms of macros. This reduces
the amount of code and places each block cipher EVP
definition in a single file instead of being spread
over 4 files.

1 files changed, 168 insertions, 0 deletions

diff --git a/crypto/evp/evp_locl.h b/crypto/evp/evp_locl.h
new file mode 100644
index 0000000..d3a6260
--- /dev/null
+++ b/crypto/evp/evp_locl.h
@@ -0,0 +1,168 @@
+/* evp_locl.h */
+/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
+ * project 2000.
+ */
+/* ====================================================================
+ * Copyright (c) 1999 The OpenSSL 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 OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    licensing@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL 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 OpenSSL 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.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com).  This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+
+/* Macros to code block cipher wrappers */
+
+/* Wrapper functions for each cipher mode */
+
+#define BLOCK_CIPHER_ecb_loop() \
+	unsigned int i; \
+	if(inl < 8) return 1;\
+	inl -= 8; \
+	for(i=0; i <= inl; i+=8) \
+
+#define BLOCK_CIPHER_func_ecb(cname, cprefix, kname) \
+static int cname##_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, unsigned char *in, unsigned int inl) \
+{\
+	BLOCK_CIPHER_ecb_loop() \
+		cprefix##_ecb_encrypt(in + i, out + i, &ctx->c.##kname, ctx->encrypt);\
+	return 1;\
+}
+
+#define BLOCK_CIPHER_func_ofb(cname, cprefix, kname) \
+static int cname##_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, unsigned char *in, unsigned int inl) \
+{\
+	cprefix##_ofb64_encrypt(in, out, (long)inl, &ctx->c.##kname, ctx->iv, &ctx->num);\
+	return 1;\
+}
+
+#define BLOCK_CIPHER_func_cbc(cname, cprefix, kname) \
+static int cname##_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, unsigned char *in, unsigned int inl) \
+{\
+	cprefix##_cbc_encrypt(in, out, (long)inl, &ctx->c.##kname, ctx->iv, ctx->encrypt);\
+	return 1;\
+}
+
+#define BLOCK_CIPHER_func_cfb(cname, cprefix, kname) \
+static int cname##_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, unsigned char *in, unsigned int inl) \
+{\
+	cprefix##_cfb64_encrypt(in, out, (long)inl, &ctx->c.##kname, ctx->iv, &ctx->num, ctx->encrypt);\
+	return 1;\
+}
+
+#define BLOCK_CIPHER_all_funcs(cname, cprefix, kname) \
+	BLOCK_CIPHER_func_cbc(cname, cprefix, kname) \
+	BLOCK_CIPHER_func_cfb(cname, cprefix, kname) \
+	BLOCK_CIPHER_func_ecb(cname, cprefix, kname) \
+	BLOCK_CIPHER_func_ofb(cname, cprefix, kname)
+
+#define BLOCK_CIPHER_defs(cname, kstruct, \
+				nid, block_size, key_len, iv_len, flags,\
+				 init_key, cleanup, set_asn1, get_asn1, ctrl)\
+static EVP_CIPHER cname##_cbc = {\
+	nid##_cbc, block_size, key_len, iv_len, \
+	flags | EVP_CIPH_CBC_MODE,\
+	init_key,\
+	cname##_cbc_cipher,\
+	cleanup,\
+	sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
+		sizeof((((EVP_CIPHER_CTX *)NULL)->c.##kstruct)),\
+	set_asn1, get_asn1,\
+	ctrl, \
+	NULL \
+};\
+EVP_CIPHER *EVP_##cname##_cbc(void) { return &cname##_cbc; }\
+static EVP_CIPHER cname##_cfb = {\
+	nid##_cfb64, 1, key_len, iv_len, \
+	flags | EVP_CIPH_CFB_MODE,\
+	init_key,\
+	cname##_cfb_cipher,\
+	cleanup,\
+	sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
+		sizeof((((EVP_CIPHER_CTX *)NULL)->c.##kstruct)),\
+	set_asn1, get_asn1,\
+	ctrl,\
+	NULL \
+};\
+EVP_CIPHER *EVP_##cname##_cfb(void) { return &cname##_cfb; }\
+static EVP_CIPHER cname##_ofb = {\
+	nid##_ofb64, 1, key_len, iv_len, \
+	flags | EVP_CIPH_OFB_MODE,\
+	init_key,\
+	cname##_ofb_cipher,\
+	cleanup,\
+	sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
+		sizeof((((EVP_CIPHER_CTX *)NULL)->c.##kstruct)),\
+	set_asn1, get_asn1,\
+	ctrl,\
+	NULL \
+};\
+EVP_CIPHER *EVP_##cname##_ofb(void) { return &cname##_ofb; }\
+static EVP_CIPHER cname##_ecb = {\
+	nid##_ecb, block_size, key_len, iv_len, \
+	flags | EVP_CIPH_ECB_MODE,\
+	init_key,\
+	cname##_ecb_cipher,\
+	cleanup,\
+	sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
+		sizeof((((EVP_CIPHER_CTX *)NULL)->c.##kstruct)),\
+	set_asn1, get_asn1,\
+	ctrl,\
+	NULL \
+};\
+EVP_CIPHER *EVP_##cname##_ecb(void) { return &cname##_ecb; }
+
+
+
+#define IMPLEMENT_BLOCK_CIPHER(cname, kname, cprefix, kstruct, \
+				nid, block_size, key_len, iv_len, flags, \
+				 init_key, cleanup, set_asn1, get_asn1, ctrl) \
+	BLOCK_CIPHER_all_funcs(cname, cprefix, kname) \
+	BLOCK_CIPHER_defs(cname, kstruct, nid, block_size, key_len, iv_len, flags,\
+		 init_key, cleanup, set_asn1, get_asn1, ctrl) 
+