C api for openssl

Author: WalterBright

C/aes.h

@@ -0,0 +1,148 @@
+/* crypto/aes/aes.h -*- mode:C; c-file-style: "eay" -*- */
+/* ====================================================================
+ * Copyright (c) 1998-2002 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
+ *    [email protected].
+ *
+ * 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.
+ * ====================================================================
+ *
+ */
+
+#ifndef HEADER_AES_H
+#define HEADER_AES_H
+
+#include <openssl/opensslconf.h>
+
+#ifdef OPENSSL_NO_AES
+#error AES is disabled.
+#endif
+
+#define AES_ENCRYPT	1
+#define AES_DECRYPT	0
+
+/* Because array size can't be a const in C, the following two are macros.
+   Both sizes are in bytes. */
+#define AES_MAXNR 14
+#define AES_BLOCK_SIZE 16
+
+#ifdef OPENSSL_FIPS
+#define FIPS_AES_SIZE_T	int
+#endif
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
+/* This should be a hidden type, but EVP requires that the size be known */
+struct aes_key_st {
+#ifdef AES_LONG
+    unsigned long rd_key[4 *(AES_MAXNR + 1)];
+#else
+    unsigned int rd_key[4 *(AES_MAXNR + 1)];
+#endif
+    int rounds;
+};
+typedef struct aes_key_st AES_KEY;
+
+const char *AES_options(void);
+
+int AES_set_encrypt_key(const unsigned char *userKey, const int bits,
+	AES_KEY *key);
+int AES_set_decrypt_key(const unsigned char *userKey, const int bits,
+	AES_KEY *key);
+
+void AES_encrypt(const unsigned char *in, unsigned char *out,
+	const AES_KEY *key);
+void AES_decrypt(const unsigned char *in, unsigned char *out,
+	const AES_KEY *key);
+
+void AES_ecb_encrypt(const unsigned char *in, unsigned char *out,
+	const AES_KEY *key, const int enc);
+void AES_cbc_encrypt(const unsigned char *in, unsigned char *out,
+	const unsigned long length, const AES_KEY *key,
+	unsigned char *ivec, const int enc);
+void AES_cfb128_encrypt(const unsigned char *in, unsigned char *out,
+	const unsigned long length, const AES_KEY *key,
+	unsigned char *ivec, int *num, const int enc);
+void AES_cfb1_encrypt(const unsigned char *in, unsigned char *out,
+	const unsigned long length, const AES_KEY *key,
+	unsigned char *ivec, int *num, const int enc);
+void AES_cfb8_encrypt(const unsigned char *in, unsigned char *out,
+	const unsigned long length, const AES_KEY *key,
+	unsigned char *ivec, int *num, const int enc);
+void AES_cfbr_encrypt_block(const unsigned char *in,unsigned char *out,
+			    const int nbits,const AES_KEY *key,
+			    unsigned char *ivec,const int enc);
+void AES_ofb128_encrypt(const unsigned char *in, unsigned char *out,
+	const unsigned long length, const AES_KEY *key,
+	unsigned char *ivec, int *num);
+void AES_ctr128_encrypt(const unsigned char *in, unsigned char *out,
+	const unsigned long length, const AES_KEY *key,
+	unsigned char ivec[AES_BLOCK_SIZE],
+	unsigned char ecount_buf[AES_BLOCK_SIZE],
+	unsigned int *num);
+
+/* For IGE, see also http://www.links.org/files/openssl-ige.pdf */
+/* NB: the IV is _two_ blocks long */
+void AES_ige_encrypt(const unsigned char *in, unsigned char *out,
+		     const unsigned long length, const AES_KEY *key,
+		     unsigned char *ivec, const int enc);
+/* NB: the IV is _four_ blocks long */
+void AES_bi_ige_encrypt(const unsigned char *in, unsigned char *out,
+			const unsigned long length, const AES_KEY *key,
+			const AES_KEY *key2, const unsigned char *ivec,
+			const int enc);
+
+int AES_wrap_key(AES_KEY *key, const unsigned char *iv,
+		unsigned char *out,
+		const unsigned char *in, unsigned int inlen);
+int AES_unwrap_key(AES_KEY *key, const unsigned char *iv,
+		unsigned char *out,
+		const unsigned char *in, unsigned int inlen);
+
+#ifdef  __cplusplus
+}
+#endif
+
+#endif /* !HEADER_AES_H */