41 lines
773 B
C
41 lines
773 B
C
// kuznechik.h
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// 04-Jan-15 Markku-Juhani O. Saarinen <mjos@iki.fi>
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#ifndef KUZNECHIK_H
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#define KUZNECHIK_H
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#include <stdint.h>
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#include <stdio.h>
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// my 128-bit datatype
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typedef union {
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uint64_t q[2];
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uint8_t b[16];
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} w128_t;
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// cipher context
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typedef struct {
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w128_t k[10]; // round keys
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} kuz_key_t;
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// init lookup tables
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void kuz_init(void);
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// key setup
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void kuz_set_encrypt_key(kuz_key_t *subkeys, const uint8_t key[32]);
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void kuz_set_decrypt_key(kuz_key_t *subkeys, const uint8_t key[32]);
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// single-block ecp ops
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void kuz_encrypt_block(kuz_key_t *subkeys, void *x);
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void kuz_decrypt_block(kuz_key_t *subkeys, void *x);
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// utils
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void print_w128(w128_t *x);
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// tests
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#ifdef TEST_FUNCTIONS_ENABLED
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void exec_kuznechik_test(void);
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#endif
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#endif
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