29 lines
671 B
C
29 lines
671 B
C
/* rc5.h a C implementation of RC5 for AVR microcontrollers
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*
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* author: Daniel Otte
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* email: daniel.otte@rub.de
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* license: GPLv3
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*
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* this implementation is limited to 64bit blocks and a maximum of 255 rounds
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*
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*/
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#ifndef RC5_H_
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#define RC5_H_
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#include <stdint.h>
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#include <stdlib.h> /* malloc() & free() */
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#include <string.h> /* memset() & memcpy() */
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typedef struct rc5_ctx_st {
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uint8_t rounds;
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uint32_t *s;
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}rc5_ctx_t;
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void rc5_enc(void* buffer, const rc5_ctx_t* ctx);
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void rc5_dec(void* buffer, const rc5_ctx_t* ctx);
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void rc5_init(void* key, uint16_t keysize_b, uint8_t rounds, rc5_ctx_t* ctx);
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void rc5_free(rc5_ctx_t* ctx);
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#endif /*RC5_H_*/
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