Security-57031.1.35.tar.gz

[apple/security.git] / Security / libsecurity_apple_csp / lib / rijndaelApi.h

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+/*
+ * Copyright (c) 2000-2001,2011,2014 Apple Inc. All Rights Reserved.
+ * 
+ * The contents of this file constitute Original Code as defined in and are
+ * subject to the Apple Public Source License Version 1.2 (the 'License').
+ * You may not use this file except in compliance with the License. Please obtain
+ * a copy of the License at http://www.apple.com/publicsource and read it before
+ * using this file.
+ * 
+ * This Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
+ * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT
+ * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
+ * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the
+ * specific language governing rights and limitations under the License.
+ */
+
+
+/* 
+ * rijndaelApi.h  -  AES API layer
+ *
+ * Based on rijndael-api-ref.h v2.0 written by Paulo Barreto
+ * and Vincent Rijmen
+ */
+
+#ifndef        _RIJNDAEL_API_REF_H_
+#define _RIJNDAEL_API_REF_H_
+
+#include <stdio.h>
+#include "rijndael-alg-ref.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*  Error Codes  */
+#define     BAD_KEY_MAT        -1  /*  Key material not of correct 
+                                                                          length */
+#define     BAD_KEY_INSTANCE   -2  /*  Key passed is not valid  */
+
+#define     MAX_AES_KEY_SIZE   (MAX_AES_KEY_BITS / 8)
+#define        MAX_AES_BLOCK_SIZE      (MAX_AES_BLOCK_BITS / 8)
+#define     MAX_AES_IV_SIZE            MAX_AES_BLOCK_SIZE
+       
+#define                TRUE            1
+#define        FALSE           0
+
+/*  The structure for key information */
+typedef struct {
+       word32                  keyLen;         /* Length of the key in bits */
+       word32                  blockLen;   /* Length of block in bits */
+       word32                  columns;        /* optimization, blockLen / 32 */
+       word8                   keySched[MAXROUNDS+1][4][MAXBC];        
+} keyInstance;
+
+int makeKey(
+       keyInstance *key, 
+       int keyLen,             // in BITS
+       int blockLen,           // in BITS
+       word8 *keyMaterial,
+       int enable128Opt);
+
+/*
+ * Simplified single-block encrypt/decrypt.
+ */
+int rijndaelBlockEncrypt(
+       keyInstance *key, 
+       word8 *input, 
+       word8 *outBuffer);
+int rijndaelBlockDecrypt(
+       keyInstance *key, 
+       word8 *input, 
+       word8 *outBuffer);
+       
+#if            !GLADMAN_AES_128_ENABLE
+/*
+ * Optimized routines for 128 bit block and 128 bit key.
+ */
+int rijndaelBlockEncrypt128(
+       keyInstance     *key, 
+       word8                   *input, 
+       word8                   *outBuffer);
+int rijndaelBlockDecrypt128(
+       keyInstance     *key, 
+       word8                   *input, 
+       word8                   *outBuffer);
+#endif /* !GLADMAN_AES_128_ENABLE */
+
+#if defined(__ppc__) && defined(ALTIVEC_ENABLE)
+/* 
+ * dmitch addenda 4/11/2001: 128-bit only vectorized encrypt/decrypt with no CBC
+ */
+void vBlockEncrypt128(
+       keyInstance *key, 
+       word8 *input, 
+       word8 *outBuffer);
+void vBlockDecrypt128(
+       keyInstance *key, 
+       word8 *input, 
+       word8 *outBuffer);
+
+/* temp switch for runtime enable/disable */
+extern int doAES128;
+
+#endif /* __ppc__ && ALTIVEC_ENABLE */
+       
+/* ptr to one of several (possibly optimized) encrypt/decrypt functions */
+typedef int (*aesCryptFcn)(
+       keyInstance *key, 
+       word8 *input, 
+       word8 *outBuffer);
+
+#ifdef __cplusplus
+}
+#endif // cplusplus
+
+#endif // RIJNDAEL_API_REF
+
+