mirror of
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49 lines
1.0 KiB
C
49 lines
1.0 KiB
C
#ifndef SPECK_H
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#define SPECK_H
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/*
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* define speck type to use
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*(one of SPECK_32_64, SPECK_64_128, SPECK_128_256)
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*/
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#define SPECK_32_64
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#ifdef SPECK_32_64
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#define SPECK_TYPE uint16_t
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#define SPECK_ROUNDS 22
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#define SPECK_KEY_LEN 4
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#endif
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#ifdef SPECK_64_128
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#define SPECK_TYPE uint32_t
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#define SPECK_ROUNDS 27
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#define SPECK_KEY_LEN 4
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#endif
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#ifdef SPECK_128_256
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#define SPECK_TYPE uint64_t
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#define SPECK_ROUNDS 34
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#define SPECK_KEY_LEN 4
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#endif
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#define num_word sizeof(SPECK_TYPE)
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#include <sys/types.h>
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#include <stdint.h>
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#include <string.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct {
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unsigned char rk[num_word];
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} mycipher_key_t;
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void mycipher_set_encrypt_key(mycipher_key_t *key, const unsigned char *user_key);
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void speck_expand(SPECK_TYPE const K[SPECK_KEY_LEN], SPECK_TYPE S[SPECK_ROUNDS]);
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void speck_encrypt(SPECK_TYPE const pt[2], SPECK_TYPE ct[2], SPECK_TYPE const K[SPECK_ROUNDS]);
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void speck_decrypt(SPECK_TYPE const ct[2], SPECK_TYPE pt[2], SPECK_TYPE const K[SPECK_ROUNDS]);
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#ifdef __cplusplus
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}
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#endif
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#endif
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