1 /* 2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the OpenSSL license (the "License"). You may not use 5 * this file except in compliance with the License. You can obtain a copy 6 * in the file LICENSE in the source distribution or at 7 * https://www.openssl.org/source/license.html 8 */ 9 10 #ifndef HEADER_CAST_H 11 # define HEADER_CAST_H 12 13 # include <openssl/opensslconf.h> 14 15 # ifndef OPENSSL_NO_CAST 16 # ifdef __cplusplus 17 extern "C" { 18 # endif 19 20 # define CAST_ENCRYPT 1 21 # define CAST_DECRYPT 0 22 23 # define CAST_LONG unsigned int 24 25 # define CAST_BLOCK 8 26 # define CAST_KEY_LENGTH 16 27 28 typedef struct cast_key_st { 29 CAST_LONG data[32]; 30 int short_key; /* Use reduced rounds for short key */ 31 } CAST_KEY; 32 33 void CAST_set_key(CAST_KEY *key, int len, const unsigned char *data); 34 void CAST_ecb_encrypt(const unsigned char *in, unsigned char *out, 35 const CAST_KEY *key, int enc); 36 void CAST_encrypt(CAST_LONG *data, const CAST_KEY *key); 37 void CAST_decrypt(CAST_LONG *data, const CAST_KEY *key); 38 void CAST_cbc_encrypt(const unsigned char *in, unsigned char *out, 39 long length, const CAST_KEY *ks, unsigned char *iv, 40 int enc); 41 void CAST_cfb64_encrypt(const unsigned char *in, unsigned char *out, 42 long length, const CAST_KEY *schedule, 43 unsigned char *ivec, int *num, int enc); 44 void CAST_ofb64_encrypt(const unsigned char *in, unsigned char *out, 45 long length, const CAST_KEY *schedule, 46 unsigned char *ivec, int *num); 47 48 # ifdef __cplusplus 49 } 50 # endif 51 # endif 52 53 #endif 54