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64 lines
1.9 KiB
C
64 lines
1.9 KiB
C
/*
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* Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the OpenSSL license (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#ifndef HEADER_RC5_H
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# define HEADER_RC5_H
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# include <openssl/opensslconf.h>
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# ifndef OPENSSL_NO_RC5
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# ifdef __cplusplus
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extern "C" {
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# endif
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# define RC5_ENCRYPT 1
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# define RC5_DECRYPT 0
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# define RC5_32_INT unsigned int
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# define RC5_32_BLOCK 8
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# define RC5_32_KEY_LENGTH 16/* This is a default, max is 255 */
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/*
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* This are the only values supported. Tweak the code if you want more The
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* most supported modes will be RC5-32/12/16 RC5-32/16/8
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*/
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# define RC5_8_ROUNDS 8
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# define RC5_12_ROUNDS 12
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# define RC5_16_ROUNDS 16
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typedef struct rc5_key_st {
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/* Number of rounds */
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int rounds;
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RC5_32_INT data[2 * (RC5_16_ROUNDS + 1)];
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} RC5_32_KEY;
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void RC5_32_set_key(RC5_32_KEY *key, int len, const unsigned char *data,
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int rounds);
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void RC5_32_ecb_encrypt(const unsigned char *in, unsigned char *out,
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RC5_32_KEY *key, int enc);
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void RC5_32_encrypt(unsigned long *data, RC5_32_KEY *key);
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void RC5_32_decrypt(unsigned long *data, RC5_32_KEY *key);
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void RC5_32_cbc_encrypt(const unsigned char *in, unsigned char *out,
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long length, RC5_32_KEY *ks, unsigned char *iv,
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int enc);
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void RC5_32_cfb64_encrypt(const unsigned char *in, unsigned char *out,
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long length, RC5_32_KEY *schedule,
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unsigned char *ivec, int *num, int enc);
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void RC5_32_ofb64_encrypt(const unsigned char *in, unsigned char *out,
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long length, RC5_32_KEY *schedule,
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unsigned char *ivec, int *num);
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# ifdef __cplusplus
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}
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# endif
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# endif
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#endif
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