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27 lines
694 B
C
27 lines
694 B
C
#include "stream.h"
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#include <string.h>
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void PQCLEAN_DILITHIUM4_CLEAN_shake128_stream_init(
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shake128ctx *state, const uint8_t seed[SEEDBYTES], uint16_t nonce) {
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uint8_t buf[SEEDBYTES + 2];
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memcpy(buf, seed, SEEDBYTES);
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buf[SEEDBYTES] = (uint8_t)nonce;
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buf[SEEDBYTES + 1] = (uint8_t)(nonce >> 8);
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shake128_absorb(state, buf, SEEDBYTES + 2);
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}
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void PQCLEAN_DILITHIUM4_CLEAN_shake256_stream_init(
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shake256ctx *state, const uint8_t seed[CRHBYTES], uint16_t nonce) {
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uint8_t buf[CRHBYTES + 2];
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memcpy(buf, seed, CRHBYTES);
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buf[CRHBYTES] = (uint8_t)nonce;
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buf[CRHBYTES + 1] = (uint8_t)(nonce >> 8);
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shake256_absorb(state, buf, CRHBYTES + 2);
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}
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