| 1 | /*
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| 2 | * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
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| 3 | *
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| 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use
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| 5 | * this file except in compliance with the License. You can obtain a copy
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| 6 | * in the file LICENSE in the source distribution or at
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| 7 | * https://www.openssl.org/source/license.html
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| 8 | */
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| 9 |
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| 10 | #ifndef OPENSSL_RC5_H
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| 11 | # define OPENSSL_RC5_H
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| 12 | # pragma once
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| 13 |
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| 14 | # include <openssl/macros.h>
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| 15 | # ifndef OPENSSL_NO_DEPRECATED_3_0
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| 16 | # define HEADER_RC5_H
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| 17 | # endif
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| 18 |
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| 19 | # include <openssl/opensslconf.h>
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| 20 |
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| 21 | # ifndef OPENSSL_NO_RC5
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| 22 | # ifdef __cplusplus
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| 23 | extern "C" {
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| 24 | # endif
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| 25 |
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| 26 | # define RC5_32_BLOCK 8
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| 27 | # define RC5_32_KEY_LENGTH 16/* This is a default, max is 255 */
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| 28 |
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| 29 | # ifndef OPENSSL_NO_DEPRECATED_3_0
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| 30 | # define RC5_ENCRYPT 1
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| 31 | # define RC5_DECRYPT 0
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| 32 |
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| 33 | # define RC5_32_INT unsigned int
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| 34 |
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| 35 | /*
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| 36 | * This are the only values supported. Tweak the code if you want more The
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| 37 | * most supported modes will be RC5-32/12/16 RC5-32/16/8
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| 38 | */
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| 39 | # define RC5_8_ROUNDS 8
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| 40 | # define RC5_12_ROUNDS 12
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| 41 | # define RC5_16_ROUNDS 16
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| 42 |
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| 43 | typedef struct rc5_key_st {
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| 44 | /* Number of rounds */
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| 45 | int rounds;
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| 46 | RC5_32_INT data[2 * (RC5_16_ROUNDS + 1)];
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| 47 | } RC5_32_KEY;
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| 48 | # endif
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| 49 | # ifndef OPENSSL_NO_DEPRECATED_3_0
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| 50 | OSSL_DEPRECATEDIN_3_0 int RC5_32_set_key(RC5_32_KEY *key, int len,
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| 51 | const unsigned char *data,
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| 52 | int rounds);
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| 53 | OSSL_DEPRECATEDIN_3_0 void RC5_32_ecb_encrypt(const unsigned char *in,
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| 54 | unsigned char *out,
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| 55 | RC5_32_KEY *key,
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| 56 | int enc);
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| 57 | OSSL_DEPRECATEDIN_3_0 void RC5_32_encrypt(unsigned long *data, RC5_32_KEY *key);
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| 58 | OSSL_DEPRECATEDIN_3_0 void RC5_32_decrypt(unsigned long *data, RC5_32_KEY *key);
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| 59 | OSSL_DEPRECATEDIN_3_0 void RC5_32_cbc_encrypt(const unsigned char *in,
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| 60 | unsigned char *out, long length,
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| 61 | RC5_32_KEY *ks, unsigned char *iv,
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| 62 | int enc);
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| 63 | OSSL_DEPRECATEDIN_3_0 void RC5_32_cfb64_encrypt(const unsigned char *in,
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| 64 | unsigned char *out, long length,
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| 65 | RC5_32_KEY *schedule,
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| 66 | unsigned char *ivec, int *num,
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| 67 | int enc);
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| 68 | OSSL_DEPRECATEDIN_3_0 void RC5_32_ofb64_encrypt(const unsigned char *in,
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| 69 | unsigned char *out, long length,
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| 70 | RC5_32_KEY *schedule,
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| 71 | unsigned char *ivec, int *num);
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| 72 | # endif
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| 73 |
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| 74 | # ifdef __cplusplus
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| 75 | }
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| 76 | # endif
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| 77 | # endif
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| 78 |
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| 79 | #endif
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