shavs_ctx.buffersize_B=pgm_read_word(&(shavs_algo->blocksize_b))/8;
uint8_t buffer[shavs_ctx.buffersize_B+5];
shavs_ctx.buffer = buffer;
shavs_ctx.buffersize_B=pgm_read_word(&(shavs_algo->blocksize_b))/8;
uint8_t buffer[shavs_ctx.buffersize_B+5];
shavs_ctx.buffer = buffer;