-#ifdef DEBUG
-# undef DEBUG
-#endif
-
-#define DEBUG 0
-
-#if DEBUG
-#include "cli.h"
-
-void keccak_dump_state(uint64_t a[5][5]){
- uint8_t i,j;
- for(i=0; i<5; ++i){
- cli_putstr_P(PSTR("\r\n"));
- cli_putc('0'+i);
- cli_putstr_P(PSTR(": "));
- for(j=0; j<5; ++j){
- cli_hexdump_rev(&(a[i][j]), 8);
- cli_putc(' ');
- }
- }
-}
-
-void keccak_dump_ctx(keccak_ctx_t* ctx){
- keccak_dump_state(ctx->a);
- cli_putstr_P(PSTR("\r\nDBG: r: "));
- cli_hexdump_rev(&(ctx->r), 2);
- cli_putstr_P(PSTR("\t c: "));
- cli_hexdump_rev(&(ctx->c), 2);
- cli_putstr_P(PSTR("\t d: "));
- cli_hexdump(&(ctx->d), 1);
- cli_putstr_P(PSTR("\t bs: "));
- cli_hexdump(&(ctx->bs), 1);
-}
-
-#endif
-
-/*
-const uint64_t rc[] PROGMEM = {
- 0x0000000000000001LL, 0x0000000000008082LL,
- 0x800000000000808ALL, 0x8000000080008000LL,
- 0x000000000000808BLL, 0x0000000080000001LL,
- 0x8000000080008081LL, 0x8000000000008009LL,
- 0x000000000000008ALL, 0x0000000000000088LL,
- 0x0000000080008009LL, 0x000000008000000ALL,
- 0x000000008000808BLL, 0x800000000000008BLL,
- 0x8000000000008089LL, 0x8000000000008003LL,
- 0x8000000000008002LL, 0x8000000000000080LL,
- 0x000000000000800ALL, 0x800000008000000ALL,
- 0x8000000080008081LL, 0x8000000000008080LL,
- 0x0000000080000001LL, 0x8000000080008008LL
-};
-*/
-
-const static uint8_t rc_comp[] PROGMEM = {
- 0x01, 0x92, 0xda, 0x70,
- 0x9b, 0x21, 0xf1, 0x59,
- 0x8a, 0x88, 0x39, 0x2a,
- 0xbb, 0xcb, 0xd9, 0x53,
- 0x52, 0xc0, 0x1a, 0x6a,
- 0xf1, 0xd0, 0x21, 0x78,
-};
-/*
-const uint8_t keccak_rotate_codes[5][5] PROGMEM = {
- { ROT_CODE( 0), ROT_CODE(36), ROT_CODE( 3), ROT_CODE(41), ROT_CODE(18) },
- { ROT_CODE( 1), ROT_CODE(44), ROT_CODE(10), ROT_CODE(45), ROT_CODE( 2) },
- { ROT_CODE(62), ROT_CODE( 6), ROT_CODE(43), ROT_CODE(15), ROT_CODE(61) },
- { ROT_CODE(28), ROT_CODE(55), ROT_CODE(25), ROT_CODE(21), ROT_CODE(56) },
- { ROT_CODE(27), ROT_CODE(20), ROT_CODE(39), ROT_CODE( 8), ROT_CODE(14) }
-};
-*/
-const uint8_t keccak_rotate_codes[5][5] PROGMEM = {
- { ROT_CODE( 0), ROT_CODE( 1), ROT_CODE(62), ROT_CODE(28), ROT_CODE(27) },
- { ROT_CODE(36), ROT_CODE(44), ROT_CODE( 6), ROT_CODE(55), ROT_CODE(20) },
- { ROT_CODE( 3), ROT_CODE(10), ROT_CODE(43), ROT_CODE(25), ROT_CODE(39) },
- { ROT_CODE(41), ROT_CODE(45), ROT_CODE(15), ROT_CODE(21), ROT_CODE( 8) },
- { ROT_CODE(18), ROT_CODE( 2), ROT_CODE(61), ROT_CODE(56), ROT_CODE(14) }
-};
-
-void keccak_theta(uint64_t *a, uint64_t *b);
-extern const uint8_t rho_pi_idx_table[25] PROGMEM;
-
-static inline
-void keccak_round(uint64_t a[5][5], uint8_t rci){
- uint64_t b[5][5];
-// uint8_t i, j;
- union {
- uint64_t v64;
- uint8_t v8[8];
- } t;
- /* theta */
- keccak_theta((uint64_t*)a, (uint64_t*)b);
-#if DEBUG
- cli_putstr_P(PSTR("\r\nAfter theta:"));
- keccak_dump_state(a);
-#endif
- /* rho & pi */
-/*
- const uint8_t* rot_code = (const uint8_t*)keccak_rotate_codes;
- const uint8_t* idx_idx = (const uint8_t*)rho_pi_idx_table;
- uint64_t *a_tmp = (uint64_t*)a;
- for(i = 0; i < 25; ++i){
- *((uint64_t*)(((uint8_t*)b) + pgm_read_byte(idx_idx++))) =
- rotate64left_code(*a_tmp++, pgm_read_byte(rot_code++));
-
- }
-*/
-#if DEBUG & 0
- cli_putstr_P(PSTR("\r\n--- after rho & pi ---"));
- keccak_dump_state(a);
-#endif
- /* chi */
-// memcpy(a, b, 5 * 5 * 8);
-// for(i = 1; i < 5; ++i){