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755 lines
25 KiB
755 lines
25 KiB
/** |
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* A simple implementation of Blake2b's internal permutation |
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* in the form of a sponge. |
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* |
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* Author: The Lyra PHC team (http://www.lyra-kdf.net/) -- 2014. |
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* |
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* This software is hereby placed in the public domain. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ''AS IS'' AND ANY EXPRESS |
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE |
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, |
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#include <string.h> |
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#include <stdio.h> |
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#include <time.h> |
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#include "Sponge.h" |
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#include "Lyra2.h" |
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/** |
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* Initializes the Sponge State. The first 512 bits are set to zeros and the remainder |
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* receive Blake2b's IV as per Blake2b's specification. <b>Note:</b> Even though sponges |
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* typically have their internal state initialized with zeros, Blake2b's G function |
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* has a fixed point: if the internal state and message are both filled with zeros. the |
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* resulting permutation will always be a block filled with zeros; this happens because |
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* Blake2b does not use the constants originally employed in Blake2 inside its G function, |
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* relying on the IV for avoiding possible fixed points. |
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* |
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* @param state The 1024-bit array to be initialized |
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*/ |
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void initState(uint64_t state[/*16*/]) { |
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//First 512 bis are zeros |
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memset(state, 0, 64); |
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//Remainder BLOCK_LEN_BLAKE2_SAFE_BYTES are reserved to the IV |
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state[8] = blake2b_IV[0]; |
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state[9] = blake2b_IV[1]; |
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state[10] = blake2b_IV[2]; |
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state[11] = blake2b_IV[3]; |
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state[12] = blake2b_IV[4]; |
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state[13] = blake2b_IV[5]; |
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state[14] = blake2b_IV[6]; |
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state[15] = blake2b_IV[7]; |
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} |
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/** |
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* Execute Blake2b's G function, with all 12 rounds. |
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* |
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* @param v A 1024-bit (16 uint64_t) array to be processed by Blake2b's G function |
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*/ |
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__inline static void blake2bLyra(uint64_t *v) { |
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ROUND_LYRA(0); |
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ROUND_LYRA(1); |
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ROUND_LYRA(2); |
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ROUND_LYRA(3); |
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ROUND_LYRA(4); |
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ROUND_LYRA(5); |
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ROUND_LYRA(6); |
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ROUND_LYRA(7); |
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ROUND_LYRA(8); |
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ROUND_LYRA(9); |
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ROUND_LYRA(10); |
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ROUND_LYRA(11); |
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} |
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/** |
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* Executes a reduced version of Blake2b's G function with only one round |
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* @param v A 1024-bit (16 uint64_t) array to be processed by Blake2b's G function |
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*/ |
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__inline static void reducedBlake2bLyra(uint64_t *v) { |
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ROUND_LYRA(0); |
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} |
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/** |
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* Performs a squeeze operation, using Blake2b's G function as the |
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* internal permutation |
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* |
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* @param state The current state of the sponge |
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* @param out Array that will receive the data squeezed |
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* @param len The number of bytes to be squeezed into the "out" array |
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*/ |
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void squeeze(uint64_t *state, byte *out, unsigned int len) { |
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int fullBlocks = len / BLOCK_LEN_BYTES; |
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byte *ptr = out; |
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int i; |
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//Squeezes full blocks |
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for (i = 0; i < fullBlocks; i++) { |
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memcpy(ptr, state, BLOCK_LEN_BYTES); |
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blake2bLyra(state); |
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ptr += BLOCK_LEN_BYTES; |
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} |
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//Squeezes remaining bytes |
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memcpy(ptr, state, (len % BLOCK_LEN_BYTES)); |
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} |
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/** |
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* Performs an absorb operation for a single block (BLOCK_LEN_INT64 words |
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* of type uint64_t), using Blake2b's G function as the internal permutation |
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* |
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* @param state The current state of the sponge |
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* @param in The block to be absorbed (BLOCK_LEN_INT64 words) |
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*/ |
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void absorbBlock(uint64_t *state, const uint64_t *in) { |
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//XORs the first BLOCK_LEN_INT64 words of "in" with the current state |
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state[0] ^= in[0]; |
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state[1] ^= in[1]; |
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state[2] ^= in[2]; |
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state[3] ^= in[3]; |
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state[4] ^= in[4]; |
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state[5] ^= in[5]; |
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state[6] ^= in[6]; |
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state[7] ^= in[7]; |
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state[8] ^= in[8]; |
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state[9] ^= in[9]; |
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state[10] ^= in[10]; |
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state[11] ^= in[11]; |
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//Applies the transformation f to the sponge's state |
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blake2bLyra(state); |
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} |
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/** |
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* Performs an absorb operation for a single block (BLOCK_LEN_BLAKE2_SAFE_INT64 |
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* words of type uint64_t), using Blake2b's G function as the internal permutation |
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* |
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* @param state The current state of the sponge |
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* @param in The block to be absorbed (BLOCK_LEN_BLAKE2_SAFE_INT64 words) |
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*/ |
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void absorbBlockBlake2Safe(uint64_t *state, const uint64_t *in) { |
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//XORs the first BLOCK_LEN_BLAKE2_SAFE_INT64 words of "in" with the current state |
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state[0] ^= in[0]; |
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state[1] ^= in[1]; |
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state[2] ^= in[2]; |
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state[3] ^= in[3]; |
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state[4] ^= in[4]; |
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state[5] ^= in[5]; |
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state[6] ^= in[6]; |
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state[7] ^= in[7]; |
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//Applies the transformation f to the sponge's state |
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blake2bLyra(state); |
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/* |
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for(int i = 0; i<16; i++) { |
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printf(" final state %d %08x %08x in %08x %08x\n", i, (uint32_t)(state[i] & 0xFFFFFFFFULL), (uint32_t)(state[i] >> 32), |
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(uint32_t)(in[i] & 0xFFFFFFFFULL), (uint32_t)(in[i] >> 32)); |
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} |
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*/ |
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} |
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/** |
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* Performs a reduced squeeze operation for a single row, from the highest to |
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* the lowest index, using the reduced-round Blake2b's G function as the |
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* internal permutation |
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* |
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* @param state The current state of the sponge |
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* @param rowOut Row to receive the data squeezed |
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*/ |
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void reducedSqueezeRow0(uint64_t* state, uint64_t* rowOut) { |
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uint64_t* ptrWord = rowOut + (N_COLS-1)*BLOCK_LEN_INT64; //In Lyra2: pointer to M[0][C-1] |
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int i; |
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//M[row][C-1-col] = H.reduced_squeeze() |
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for (i = 0; i < N_COLS; i++) { |
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ptrWord[0] = state[0]; |
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ptrWord[1] = state[1]; |
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ptrWord[2] = state[2]; |
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ptrWord[3] = state[3]; |
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ptrWord[4] = state[4]; |
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ptrWord[5] = state[5]; |
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ptrWord[6] = state[6]; |
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ptrWord[7] = state[7]; |
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ptrWord[8] = state[8]; |
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ptrWord[9] = state[9]; |
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ptrWord[10] = state[10]; |
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ptrWord[11] = state[11]; |
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/* |
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for (int i = 0; i<12; i++) { |
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printf(" after reducedSqueezeRow0 %d %08x %08x in %08x %08x\n", i, (uint32_t)(ptrWord[i] & 0xFFFFFFFFULL), (uint32_t)(ptrWord[i] >> 32), |
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(uint32_t)(state[i] & 0xFFFFFFFFULL), (uint32_t)(state[i] >> 32)); |
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} |
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*/ |
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//Goes to next block (column) that will receive the squeezed data |
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ptrWord -= BLOCK_LEN_INT64; |
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//Applies the reduced-round transformation f to the sponge's state |
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reducedBlake2bLyra(state); |
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} |
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} |
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/** |
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* Performs a reduced duplex operation for a single row, from the highest to |
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* the lowest index, using the reduced-round Blake2b's G function as the |
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* internal permutation |
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* |
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* @param state The current state of the sponge |
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* @param rowIn Row to feed the sponge |
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* @param rowOut Row to receive the sponge's output |
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*/ |
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void reducedDuplexRow1(uint64_t *state, uint64_t *rowIn, uint64_t *rowOut) { |
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uint64_t* ptrWordIn = rowIn; //In Lyra2: pointer to prev |
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uint64_t* ptrWordOut = rowOut + (N_COLS-1)*BLOCK_LEN_INT64; //In Lyra2: pointer to row |
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int i; |
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for (i = 0; i < N_COLS; i++) { |
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//Absorbing "M[prev][col]" |
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state[0] ^= (ptrWordIn[0]); |
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state[1] ^= (ptrWordIn[1]); |
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state[2] ^= (ptrWordIn[2]); |
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state[3] ^= (ptrWordIn[3]); |
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state[4] ^= (ptrWordIn[4]); |
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state[5] ^= (ptrWordIn[5]); |
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state[6] ^= (ptrWordIn[6]); |
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state[7] ^= (ptrWordIn[7]); |
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state[8] ^= (ptrWordIn[8]); |
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state[9] ^= (ptrWordIn[9]); |
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state[10] ^= (ptrWordIn[10]); |
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state[11] ^= (ptrWordIn[11]); |
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//Applies the reduced-round transformation f to the sponge's state |
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reducedBlake2bLyra(state); |
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//M[row][C-1-col] = M[prev][col] XOR rand |
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ptrWordOut[0] = ptrWordIn[0] ^ state[0]; |
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ptrWordOut[1] = ptrWordIn[1] ^ state[1]; |
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ptrWordOut[2] = ptrWordIn[2] ^ state[2]; |
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ptrWordOut[3] = ptrWordIn[3] ^ state[3]; |
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ptrWordOut[4] = ptrWordIn[4] ^ state[4]; |
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ptrWordOut[5] = ptrWordIn[5] ^ state[5]; |
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ptrWordOut[6] = ptrWordIn[6] ^ state[6]; |
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ptrWordOut[7] = ptrWordIn[7] ^ state[7]; |
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ptrWordOut[8] = ptrWordIn[8] ^ state[8]; |
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ptrWordOut[9] = ptrWordIn[9] ^ state[9]; |
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ptrWordOut[10] = ptrWordIn[10] ^ state[10]; |
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ptrWordOut[11] = ptrWordIn[11] ^ state[11]; |
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//Input: next column (i.e., next block in sequence) |
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ptrWordIn += BLOCK_LEN_INT64; |
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//Output: goes to previous column |
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ptrWordOut -= BLOCK_LEN_INT64; |
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} |
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} |
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/** |
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* Performs a duplexing operation over "M[rowInOut][col] [+] M[rowIn][col]" (i.e., |
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* the wordwise addition of two columns, ignoring carries between words). The |
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* output of this operation, "rand", is then used to make |
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* "M[rowOut][(N_COLS-1)-col] = M[rowIn][col] XOR rand" and |
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* "M[rowInOut][col] = M[rowInOut][col] XOR rotW(rand)", where rotW is a 64-bit |
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* rotation to the left and N_COLS is a system parameter. |
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* |
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* @param state The current state of the sponge |
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* @param rowIn Row used only as input |
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* @param rowInOut Row used as input and to receive output after rotation |
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* @param rowOut Row receiving the output |
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* |
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*/ |
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void reducedDuplexRowSetup(uint64_t *state, uint64_t *rowIn, uint64_t *rowInOut, uint64_t *rowOut) { |
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uint64_t* ptrWordIn = rowIn; //In Lyra2: pointer to prev |
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uint64_t* ptrWordInOut = rowInOut; //In Lyra2: pointer to row* |
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uint64_t* ptrWordOut = rowOut + (N_COLS-1)*BLOCK_LEN_INT64; //In Lyra2: pointer to row |
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int i; |
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for (i = 0; i < N_COLS; i++) { |
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//Absorbing "M[prev] [+] M[row*]" |
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state[0] ^= (ptrWordIn[0] + ptrWordInOut[0]); |
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state[1] ^= (ptrWordIn[1] + ptrWordInOut[1]); |
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state[2] ^= (ptrWordIn[2] + ptrWordInOut[2]); |
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state[3] ^= (ptrWordIn[3] + ptrWordInOut[3]); |
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state[4] ^= (ptrWordIn[4] + ptrWordInOut[4]); |
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state[5] ^= (ptrWordIn[5] + ptrWordInOut[5]); |
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state[6] ^= (ptrWordIn[6] + ptrWordInOut[6]); |
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state[7] ^= (ptrWordIn[7] + ptrWordInOut[7]); |
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state[8] ^= (ptrWordIn[8] + ptrWordInOut[8]); |
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state[9] ^= (ptrWordIn[9] + ptrWordInOut[9]); |
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state[10] ^= (ptrWordIn[10] + ptrWordInOut[10]); |
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state[11] ^= (ptrWordIn[11] + ptrWordInOut[11]); |
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//Applies the reduced-round transformation f to the sponge's state |
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reducedBlake2bLyra(state); |
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//M[row][col] = M[prev][col] XOR rand |
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ptrWordOut[0] = ptrWordIn[0] ^ state[0]; |
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ptrWordOut[1] = ptrWordIn[1] ^ state[1]; |
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ptrWordOut[2] = ptrWordIn[2] ^ state[2]; |
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ptrWordOut[3] = ptrWordIn[3] ^ state[3]; |
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ptrWordOut[4] = ptrWordIn[4] ^ state[4]; |
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ptrWordOut[5] = ptrWordIn[5] ^ state[5]; |
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ptrWordOut[6] = ptrWordIn[6] ^ state[6]; |
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ptrWordOut[7] = ptrWordIn[7] ^ state[7]; |
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ptrWordOut[8] = ptrWordIn[8] ^ state[8]; |
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ptrWordOut[9] = ptrWordIn[9] ^ state[9]; |
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ptrWordOut[10] = ptrWordIn[10] ^ state[10]; |
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ptrWordOut[11] = ptrWordIn[11] ^ state[11]; |
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//M[row*][col] = M[row*][col] XOR rotW(rand) |
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ptrWordInOut[0] ^= state[11]; |
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ptrWordInOut[1] ^= state[0]; |
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ptrWordInOut[2] ^= state[1]; |
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ptrWordInOut[3] ^= state[2]; |
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ptrWordInOut[4] ^= state[3]; |
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ptrWordInOut[5] ^= state[4]; |
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ptrWordInOut[6] ^= state[5]; |
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ptrWordInOut[7] ^= state[6]; |
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ptrWordInOut[8] ^= state[7]; |
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ptrWordInOut[9] ^= state[8]; |
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ptrWordInOut[10] ^= state[9]; |
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ptrWordInOut[11] ^= state[10]; |
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//Inputs: next column (i.e., next block in sequence) |
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ptrWordInOut += BLOCK_LEN_INT64; |
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ptrWordIn += BLOCK_LEN_INT64; |
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//Output: goes to previous column |
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ptrWordOut -= BLOCK_LEN_INT64; |
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} |
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} |
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/** |
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* Performs a duplexing operation over "M[rowInOut][col] [+] M[rowIn][col]" (i.e., |
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* the wordwise addition of two columns, ignoring carries between words). The |
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* output of this operation, "rand", is then used to make |
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* "M[rowOut][col] = M[rowOut][col] XOR rand" and |
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* "M[rowInOut][col] = M[rowInOut][col] XOR rotW(rand)", where rotW is a 64-bit |
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* rotation to the left. |
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* |
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* @param state The current state of the sponge |
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* @param rowIn Row used only as input |
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* @param rowInOut Row used as input and to receive output after rotation |
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* @param rowOut Row receiving the output |
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* |
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*/ |
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void reducedDuplexRow(uint64_t *state, uint64_t *rowIn, uint64_t *rowInOut, uint64_t *rowOut) { |
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uint64_t* ptrWordInOut = rowInOut; //In Lyra2: pointer to row* |
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uint64_t* ptrWordIn = rowIn; //In Lyra2: pointer to prev |
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uint64_t* ptrWordOut = rowOut; //In Lyra2: pointer to row |
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int i; |
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for (i = 0; i < N_COLS; i++) { |
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//Absorbing "M[prev] [+] M[row*]" |
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state[0] ^= (ptrWordIn[0] + ptrWordInOut[0]); |
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state[1] ^= (ptrWordIn[1] + ptrWordInOut[1]); |
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state[2] ^= (ptrWordIn[2] + ptrWordInOut[2]); |
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state[3] ^= (ptrWordIn[3] + ptrWordInOut[3]); |
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state[4] ^= (ptrWordIn[4] + ptrWordInOut[4]); |
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state[5] ^= (ptrWordIn[5] + ptrWordInOut[5]); |
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state[6] ^= (ptrWordIn[6] + ptrWordInOut[6]); |
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state[7] ^= (ptrWordIn[7] + ptrWordInOut[7]); |
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state[8] ^= (ptrWordIn[8] + ptrWordInOut[8]); |
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state[9] ^= (ptrWordIn[9] + ptrWordInOut[9]); |
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state[10] ^= (ptrWordIn[10] + ptrWordInOut[10]); |
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state[11] ^= (ptrWordIn[11] + ptrWordInOut[11]); |
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//Applies the reduced-round transformation f to the sponge's state |
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reducedBlake2bLyra(state); |
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//M[rowOut][col] = M[rowOut][col] XOR rand |
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ptrWordOut[0] ^= state[0]; |
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ptrWordOut[1] ^= state[1]; |
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ptrWordOut[2] ^= state[2]; |
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ptrWordOut[3] ^= state[3]; |
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ptrWordOut[4] ^= state[4]; |
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ptrWordOut[5] ^= state[5]; |
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ptrWordOut[6] ^= state[6]; |
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ptrWordOut[7] ^= state[7]; |
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ptrWordOut[8] ^= state[8]; |
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ptrWordOut[9] ^= state[9]; |
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ptrWordOut[10] ^= state[10]; |
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ptrWordOut[11] ^= state[11]; |
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//M[rowInOut][col] = M[rowInOut][col] XOR rotW(rand) |
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ptrWordInOut[0] ^= state[11]; |
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ptrWordInOut[1] ^= state[0]; |
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ptrWordInOut[2] ^= state[1]; |
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ptrWordInOut[3] ^= state[2]; |
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ptrWordInOut[4] ^= state[3]; |
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ptrWordInOut[5] ^= state[4]; |
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ptrWordInOut[6] ^= state[5]; |
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ptrWordInOut[7] ^= state[6]; |
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ptrWordInOut[8] ^= state[7]; |
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ptrWordInOut[9] ^= state[8]; |
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ptrWordInOut[10] ^= state[9]; |
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ptrWordInOut[11] ^= state[10]; |
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//Goes to next block |
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ptrWordOut += BLOCK_LEN_INT64; |
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ptrWordInOut += BLOCK_LEN_INT64; |
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ptrWordIn += BLOCK_LEN_INT64; |
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} |
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} |
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//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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/** |
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* Performs a duplex operation over "M[rowInOut] [+] M[rowIn]", writing the output "rand" |
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* on M[rowOut] and making "M[rowInOut] = M[rowInOut] XOR rotW(rand)", where rotW is a 64-bit |
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* rotation to the left. |
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* |
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* @param state The current state of the sponge |
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* @param rowIn Row used only as input |
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* @param rowInOut Row used as input and to receive output after rotation |
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* @param rowOut Row receiving the output |
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* |
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*/ |
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/* |
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inline void reducedDuplexRowSetupOLD(uint64_t *state, uint64_t *rowIn, uint64_t *rowInOut, uint64_t *rowOut) { |
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uint64_t* ptrWordIn = rowIn; //In Lyra2: pointer to prev |
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uint64_t* ptrWordInOut = rowInOut; //In Lyra2: pointer to row* |
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uint64_t* ptrWordOut = rowOut; //In Lyra2: pointer to row |
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int i; |
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for (i = 0; i < N_COLS; i++) { |
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|
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//Absorbing "M[rowInOut] XOR M[rowIn]" |
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state[0] ^= ptrWordInOut[0] ^ ptrWordIn[0]; |
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state[1] ^= ptrWordInOut[1] ^ ptrWordIn[1]; |
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state[2] ^= ptrWordInOut[2] ^ ptrWordIn[2]; |
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state[3] ^= ptrWordInOut[3] ^ ptrWordIn[3]; |
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state[4] ^= ptrWordInOut[4] ^ ptrWordIn[4]; |
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state[5] ^= ptrWordInOut[5] ^ ptrWordIn[5]; |
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state[6] ^= ptrWordInOut[6] ^ ptrWordIn[6]; |
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state[7] ^= ptrWordInOut[7] ^ ptrWordIn[7]; |
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state[8] ^= ptrWordInOut[8] ^ ptrWordIn[8]; |
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state[9] ^= ptrWordInOut[9] ^ ptrWordIn[9]; |
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state[10] ^= ptrWordInOut[10] ^ ptrWordIn[10]; |
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state[11] ^= ptrWordInOut[11] ^ ptrWordIn[11]; |
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|
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//Applies the reduced-round transformation f to the sponge's state |
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reducedBlake2bLyra(state); |
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|
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//M[row][col] = rand |
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ptrWordOut[0] = state[0]; |
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ptrWordOut[1] = state[1]; |
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ptrWordOut[2] = state[2]; |
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ptrWordOut[3] = state[3]; |
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ptrWordOut[4] = state[4]; |
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ptrWordOut[5] = state[5]; |
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ptrWordOut[6] = state[6]; |
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ptrWordOut[7] = state[7]; |
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ptrWordOut[8] = state[8]; |
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ptrWordOut[9] = state[9]; |
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ptrWordOut[10] = state[10]; |
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ptrWordOut[11] = state[11]; |
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|
|
|
|
//M[row*][col] = M[row*][col] XOR rotW(rand) |
|
ptrWordInOut[0] ^= state[10]; |
|
ptrWordInOut[1] ^= state[11]; |
|
ptrWordInOut[2] ^= state[0]; |
|
ptrWordInOut[3] ^= state[1]; |
|
ptrWordInOut[4] ^= state[2]; |
|
ptrWordInOut[5] ^= state[3]; |
|
ptrWordInOut[6] ^= state[4]; |
|
ptrWordInOut[7] ^= state[5]; |
|
ptrWordInOut[8] ^= state[6]; |
|
ptrWordInOut[9] ^= state[7]; |
|
ptrWordInOut[10] ^= state[8]; |
|
ptrWordInOut[11] ^= state[9]; |
|
|
|
//Goes to next column (i.e., next block in sequence) |
|
ptrWordInOut += BLOCK_LEN_INT64; |
|
ptrWordIn += BLOCK_LEN_INT64; |
|
ptrWordOut += BLOCK_LEN_INT64; |
|
} |
|
} |
|
*/ |
|
|
|
/** |
|
* Performs a duplex operation over "M[rowInOut] XOR M[rowIn]", writing the output "rand" |
|
* on M[rowOut] and making "M[rowInOut] = M[rowInOut] XOR rotW(rand)", where rotW is a 64-bit |
|
* rotation to the left. |
|
* |
|
* @param state The current state of the sponge |
|
* @param rowIn Row used only as input |
|
* @param rowInOut Row used as input and to receive output after rotation |
|
* @param rowOut Row receiving the output |
|
* |
|
*/ |
|
/* |
|
inline void reducedDuplexRowSetupv5(uint64_t *state, uint64_t *rowIn, uint64_t *rowInOut, uint64_t *rowOut) { |
|
uint64_t* ptrWordIn = rowIn; //In Lyra2: pointer to prev |
|
uint64_t* ptrWordInOut = rowInOut; //In Lyra2: pointer to row* |
|
uint64_t* ptrWordOut = rowOut; //In Lyra2: pointer to row |
|
int i; |
|
for (i = 0; i < N_COLS; i++) { |
|
|
|
//Absorbing "M[rowInOut] XOR M[rowIn]" |
|
state[0] ^= ptrWordInOut[0] + ptrWordIn[0]; |
|
state[1] ^= ptrWordInOut[1] + ptrWordIn[1]; |
|
state[2] ^= ptrWordInOut[2] + ptrWordIn[2]; |
|
state[3] ^= ptrWordInOut[3] + ptrWordIn[3]; |
|
state[4] ^= ptrWordInOut[4] + ptrWordIn[4]; |
|
state[5] ^= ptrWordInOut[5] + ptrWordIn[5]; |
|
state[6] ^= ptrWordInOut[6] + ptrWordIn[6]; |
|
state[7] ^= ptrWordInOut[7] + ptrWordIn[7]; |
|
state[8] ^= ptrWordInOut[8] + ptrWordIn[8]; |
|
state[9] ^= ptrWordInOut[9] + ptrWordIn[9]; |
|
state[10] ^= ptrWordInOut[10] + ptrWordIn[10]; |
|
state[11] ^= ptrWordInOut[11] + ptrWordIn[11]; |
|
|
|
//Applies the reduced-round transformation f to the sponge's state |
|
reducedBlake2bLyra(state); |
|
|
|
|
|
//M[row*][col] = M[row*][col] XOR rotW(rand) |
|
ptrWordInOut[0] ^= state[10]; |
|
ptrWordInOut[1] ^= state[11]; |
|
ptrWordInOut[2] ^= state[0]; |
|
ptrWordInOut[3] ^= state[1]; |
|
ptrWordInOut[4] ^= state[2]; |
|
ptrWordInOut[5] ^= state[3]; |
|
ptrWordInOut[6] ^= state[4]; |
|
ptrWordInOut[7] ^= state[5]; |
|
ptrWordInOut[8] ^= state[6]; |
|
ptrWordInOut[9] ^= state[7]; |
|
ptrWordInOut[10] ^= state[8]; |
|
ptrWordInOut[11] ^= state[9]; |
|
|
|
|
|
//M[row][col] = rand |
|
ptrWordOut[0] = state[0] ^ ptrWordIn[0]; |
|
ptrWordOut[1] = state[1] ^ ptrWordIn[1]; |
|
ptrWordOut[2] = state[2] ^ ptrWordIn[2]; |
|
ptrWordOut[3] = state[3] ^ ptrWordIn[3]; |
|
ptrWordOut[4] = state[4] ^ ptrWordIn[4]; |
|
ptrWordOut[5] = state[5] ^ ptrWordIn[5]; |
|
ptrWordOut[6] = state[6] ^ ptrWordIn[6]; |
|
ptrWordOut[7] = state[7] ^ ptrWordIn[7]; |
|
ptrWordOut[8] = state[8] ^ ptrWordIn[8]; |
|
ptrWordOut[9] = state[9] ^ ptrWordIn[9]; |
|
ptrWordOut[10] = state[10] ^ ptrWordIn[10]; |
|
ptrWordOut[11] = state[11] ^ ptrWordIn[11]; |
|
|
|
//Goes to next column (i.e., next block in sequence) |
|
ptrWordInOut += BLOCK_LEN_INT64; |
|
ptrWordIn += BLOCK_LEN_INT64; |
|
ptrWordOut += BLOCK_LEN_INT64; |
|
} |
|
} |
|
*/ |
|
|
|
/** |
|
* Performs a duplex operation over "M[rowInOut] XOR M[rowIn]", writing the output "rand" |
|
* on M[rowOut] and making "M[rowInOut] = M[rowInOut] XOR rotW(rand)", where rotW is a 64-bit |
|
* rotation to the left. |
|
* |
|
* @param state The current state of the sponge |
|
* @param rowIn Row used only as input |
|
* @param rowInOut Row used as input and to receive output after rotation |
|
* @param rowOut Row receiving the output |
|
* |
|
*/ |
|
/* |
|
inline void reducedDuplexRowSetupv5c(uint64_t *state, uint64_t *rowIn, uint64_t *rowInOut, uint64_t *rowOut) { |
|
uint64_t* ptrWordIn = rowIn; //In Lyra2: pointer to prev |
|
uint64_t* ptrWordInOut = rowInOut; //In Lyra2: pointer to row* |
|
uint64_t* ptrWordOut = rowOut; |
|
int i; |
|
|
|
for (i = 0; i < N_COLS / 2; i++) { |
|
//Absorbing "M[rowInOut] XOR M[rowIn]" |
|
state[0] ^= ptrWordInOut[0] + ptrWordIn[0]; |
|
state[1] ^= ptrWordInOut[1] + ptrWordIn[1]; |
|
state[2] ^= ptrWordInOut[2] + ptrWordIn[2]; |
|
state[3] ^= ptrWordInOut[3] + ptrWordIn[3]; |
|
state[4] ^= ptrWordInOut[4] + ptrWordIn[4]; |
|
state[5] ^= ptrWordInOut[5] + ptrWordIn[5]; |
|
state[6] ^= ptrWordInOut[6] + ptrWordIn[6]; |
|
state[7] ^= ptrWordInOut[7] + ptrWordIn[7]; |
|
state[8] ^= ptrWordInOut[8] + ptrWordIn[8]; |
|
state[9] ^= ptrWordInOut[9] + ptrWordIn[9]; |
|
state[10] ^= ptrWordInOut[10] + ptrWordIn[10]; |
|
state[11] ^= ptrWordInOut[11] + ptrWordIn[11]; |
|
|
|
//Applies the reduced-round transformation f to the sponge's state |
|
reducedBlake2bLyra(state); |
|
|
|
|
|
//M[row*][col] = M[row*][col] XOR rotW(rand) |
|
ptrWordInOut[0] ^= state[10]; |
|
ptrWordInOut[1] ^= state[11]; |
|
ptrWordInOut[2] ^= state[0]; |
|
ptrWordInOut[3] ^= state[1]; |
|
ptrWordInOut[4] ^= state[2]; |
|
ptrWordInOut[5] ^= state[3]; |
|
ptrWordInOut[6] ^= state[4]; |
|
ptrWordInOut[7] ^= state[5]; |
|
ptrWordInOut[8] ^= state[6]; |
|
ptrWordInOut[9] ^= state[7]; |
|
ptrWordInOut[10] ^= state[8]; |
|
ptrWordInOut[11] ^= state[9]; |
|
|
|
|
|
//M[row][col] = rand |
|
ptrWordOut[0] = state[0] ^ ptrWordIn[0]; |
|
ptrWordOut[1] = state[1] ^ ptrWordIn[1]; |
|
ptrWordOut[2] = state[2] ^ ptrWordIn[2]; |
|
ptrWordOut[3] = state[3] ^ ptrWordIn[3]; |
|
ptrWordOut[4] = state[4] ^ ptrWordIn[4]; |
|
ptrWordOut[5] = state[5] ^ ptrWordIn[5]; |
|
ptrWordOut[6] = state[6] ^ ptrWordIn[6]; |
|
ptrWordOut[7] = state[7] ^ ptrWordIn[7]; |
|
ptrWordOut[8] = state[8] ^ ptrWordIn[8]; |
|
ptrWordOut[9] = state[9] ^ ptrWordIn[9]; |
|
ptrWordOut[10] = state[10] ^ ptrWordIn[10]; |
|
ptrWordOut[11] = state[11] ^ ptrWordIn[11]; |
|
|
|
//Goes to next column (i.e., next block in sequence) |
|
ptrWordInOut += BLOCK_LEN_INT64; |
|
ptrWordIn += BLOCK_LEN_INT64; |
|
ptrWordOut += 2 * BLOCK_LEN_INT64; |
|
} |
|
|
|
ptrWordOut = rowOut + BLOCK_LEN_INT64; |
|
for (i = 0; i < N_COLS / 2; i++) { |
|
//Absorbing "M[rowInOut] XOR M[rowIn]" |
|
state[0] ^= ptrWordInOut[0] + ptrWordIn[0]; |
|
state[1] ^= ptrWordInOut[1] + ptrWordIn[1]; |
|
state[2] ^= ptrWordInOut[2] + ptrWordIn[2]; |
|
state[3] ^= ptrWordInOut[3] + ptrWordIn[3]; |
|
state[4] ^= ptrWordInOut[4] + ptrWordIn[4]; |
|
state[5] ^= ptrWordInOut[5] + ptrWordIn[5]; |
|
state[6] ^= ptrWordInOut[6] + ptrWordIn[6]; |
|
state[7] ^= ptrWordInOut[7] + ptrWordIn[7]; |
|
state[8] ^= ptrWordInOut[8] + ptrWordIn[8]; |
|
state[9] ^= ptrWordInOut[9] + ptrWordIn[9]; |
|
state[10] ^= ptrWordInOut[10] + ptrWordIn[10]; |
|
state[11] ^= ptrWordInOut[11] + ptrWordIn[11]; |
|
|
|
//Applies the reduced-round transformation f to the sponge's state |
|
reducedBlake2bLyra(state); |
|
|
|
|
|
//M[row*][col] = M[row*][col] XOR rotW(rand) |
|
ptrWordInOut[0] ^= state[10]; |
|
ptrWordInOut[1] ^= state[11]; |
|
ptrWordInOut[2] ^= state[0]; |
|
ptrWordInOut[3] ^= state[1]; |
|
ptrWordInOut[4] ^= state[2]; |
|
ptrWordInOut[5] ^= state[3]; |
|
ptrWordInOut[6] ^= state[4]; |
|
ptrWordInOut[7] ^= state[5]; |
|
ptrWordInOut[8] ^= state[6]; |
|
ptrWordInOut[9] ^= state[7]; |
|
ptrWordInOut[10] ^= state[8]; |
|
ptrWordInOut[11] ^= state[9]; |
|
|
|
|
|
//M[row][col] = rand |
|
ptrWordOut[0] = state[0] ^ ptrWordIn[0]; |
|
ptrWordOut[1] = state[1] ^ ptrWordIn[1]; |
|
ptrWordOut[2] = state[2] ^ ptrWordIn[2]; |
|
ptrWordOut[3] = state[3] ^ ptrWordIn[3]; |
|
ptrWordOut[4] = state[4] ^ ptrWordIn[4]; |
|
ptrWordOut[5] = state[5] ^ ptrWordIn[5]; |
|
ptrWordOut[6] = state[6] ^ ptrWordIn[6]; |
|
ptrWordOut[7] = state[7] ^ ptrWordIn[7]; |
|
ptrWordOut[8] = state[8] ^ ptrWordIn[8]; |
|
ptrWordOut[9] = state[9] ^ ptrWordIn[9]; |
|
ptrWordOut[10] = state[10] ^ ptrWordIn[10]; |
|
ptrWordOut[11] = state[11] ^ ptrWordIn[11]; |
|
|
|
//Goes to next column (i.e., next block in sequence) |
|
ptrWordInOut += BLOCK_LEN_INT64; |
|
ptrWordIn += BLOCK_LEN_INT64; |
|
ptrWordOut += 2 * BLOCK_LEN_INT64; |
|
} |
|
} |
|
*/ |
|
|
|
/** |
|
* Performs a duplex operation over "M[rowInOut] XOR M[rowIn]", using the output "rand" |
|
* to make "M[rowOut][col] = M[rowOut][col] XOR rand" and "M[rowInOut] = M[rowInOut] XOR rotW(rand)", |
|
* where rotW is a 64-bit rotation to the left. |
|
* |
|
* @param state The current state of the sponge |
|
* @param rowIn Row used only as input |
|
* @param rowInOut Row used as input and to receive output after rotation |
|
* @param rowOut Row receiving the output |
|
* |
|
*/ |
|
/* |
|
inline void reducedDuplexRowd(uint64_t *state, uint64_t *rowIn, uint64_t *rowInOut, uint64_t *rowOut) { |
|
uint64_t* ptrWordInOut = rowInOut; //In Lyra2: pointer to row* |
|
uint64_t* ptrWordIn = rowIn; //In Lyra2: pointer to prev |
|
uint64_t* ptrWordOut = rowOut; //In Lyra2: pointer to row |
|
int i; |
|
for (i = 0; i < N_COLS; i++) { |
|
|
|
//Absorbing "M[rowInOut] XOR M[rowIn]" |
|
state[0] ^= ptrWordInOut[0] + ptrWordIn[0]; |
|
state[1] ^= ptrWordInOut[1] + ptrWordIn[1]; |
|
state[2] ^= ptrWordInOut[2] + ptrWordIn[2]; |
|
state[3] ^= ptrWordInOut[3] + ptrWordIn[3]; |
|
state[4] ^= ptrWordInOut[4] + ptrWordIn[4]; |
|
state[5] ^= ptrWordInOut[5] + ptrWordIn[5]; |
|
state[6] ^= ptrWordInOut[6] + ptrWordIn[6]; |
|
state[7] ^= ptrWordInOut[7] + ptrWordIn[7]; |
|
state[8] ^= ptrWordInOut[8] + ptrWordIn[8]; |
|
state[9] ^= ptrWordInOut[9] + ptrWordIn[9]; |
|
state[10] ^= ptrWordInOut[10] + ptrWordIn[10]; |
|
state[11] ^= ptrWordInOut[11] + ptrWordIn[11]; |
|
|
|
//Applies the reduced-round transformation f to the sponge's state |
|
reducedBlake2bLyra(state); |
|
|
|
//M[rowOut][col] = M[rowOut][col] XOR rand |
|
ptrWordOut[0] ^= state[0]; |
|
ptrWordOut[1] ^= state[1]; |
|
ptrWordOut[2] ^= state[2]; |
|
ptrWordOut[3] ^= state[3]; |
|
ptrWordOut[4] ^= state[4]; |
|
ptrWordOut[5] ^= state[5]; |
|
ptrWordOut[6] ^= state[6]; |
|
ptrWordOut[7] ^= state[7]; |
|
ptrWordOut[8] ^= state[8]; |
|
ptrWordOut[9] ^= state[9]; |
|
ptrWordOut[10] ^= state[10]; |
|
ptrWordOut[11] ^= state[11]; |
|
|
|
//M[rowInOut][col] = M[rowInOut][col] XOR rotW(rand) |
|
|
|
|
|
//Goes to next block |
|
ptrWordOut += BLOCK_LEN_INT64; |
|
ptrWordInOut += BLOCK_LEN_INT64; |
|
ptrWordIn += BLOCK_LEN_INT64; |
|
} |
|
} |
|
*/ |
|
|
|
/** |
|
Prints an array of unsigned chars |
|
*/ |
|
void printArray(unsigned char *array, unsigned int size, char *name) { |
|
int i; |
|
printf("%s: ", name); |
|
for (i = 0; i < size; i++) { |
|
printf("%2x|", array[i]); |
|
} |
|
printf("\n"); |
|
} |
|
|
|
////////////////////////////////////////////////////////////////////////////////////////////////
|
|
|