35 lines
771 B
C
35 lines
771 B
C
/*
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* File: rc6.h
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* Author: Daniel Otte
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* Date: 06.08.2006
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* License: GPL
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* Description: Implementation of the RC6 cipher algorithm.
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* This implementation is restricted to 32-bit words, but free in the choice of number of rounds (0 to 255).
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* so it is RC6-32/r/b
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*/
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#ifndef RC6_H_
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#define RC6_H_
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#include <stdint.h>
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typedef struct rc6_ctx_st{
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uint8_t rounds; /* specifys the number of rounds; default: 20 */
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uint32_t* S; /* the round-keys */
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} rc6_ctx_t;
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uint8_t rc6_init(void* key, uint16_t keylength_b, rc6_ctx_t *s);
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uint8_t rc6_initl(void* key, uint16_t keylength_b, uint8_t rounds, rc6_ctx_t *s);
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void rc6_enc(void* block, rc6_ctx_t *s);
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void rc6_dec(void* block, rc6_ctx_t *s);
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void rc6_free(rc6_ctx_t *s);
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#endif /* RC6_H_ */
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