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-rw-r--r--sys/dev/if_wg/module/blake2s.c256
1 files changed, 0 insertions, 256 deletions
diff --git a/sys/dev/if_wg/module/blake2s.c b/sys/dev/if_wg/module/blake2s.c
deleted file mode 100644
index a362a6b350f1..000000000000
--- a/sys/dev/if_wg/module/blake2s.c
+++ /dev/null
@@ -1,256 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0 OR MIT
-/*
- * Copyright (C) 2012 Samuel Neves <sneves@dei.uc.pt>. All Rights Reserved.
- * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
- *
- * This is an implementation of the BLAKE2s hash and PRF functions.
- *
- * Information: https://blake2.net/
- *
- */
-
-#include <sys/types.h>
-#include <sys/systm.h>
-#include <sys/endian.h>
-
-#include <crypto/blake2s.h>
-
-static inline uint32_t
-ror32(uint32_t word, unsigned int shift)
-{
- return (word >> shift) | (word << (32 - shift));
-}
-
-typedef union {
- struct {
- uint8_t digest_length;
- uint8_t key_length;
- uint8_t fanout;
- uint8_t depth;
- uint32_t leaf_length;
- uint32_t node_offset;
- uint16_t xof_length;
- uint8_t node_depth;
- uint8_t inner_length;
- uint8_t salt[8];
- uint8_t personal[8];
- };
- uint32_t words[8];
-} __packed blake2s_param;
-
-static const uint32_t blake2s_iv[8] = {
- 0x6A09E667UL, 0xBB67AE85UL, 0x3C6EF372UL, 0xA54FF53AUL,
- 0x510E527FUL, 0x9B05688CUL, 0x1F83D9ABUL, 0x5BE0CD19UL
-};
-
-static const uint8_t blake2s_sigma[10][16] = {
- { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 },
- { 14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3 },
- { 11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4 },
- { 7, 9, 3, 1, 13, 12, 11, 14, 2, 6, 5, 10, 4, 0, 15, 8 },
- { 9, 0, 5, 7, 2, 4, 10, 15, 14, 1, 11, 12, 6, 8, 3, 13 },
- { 2, 12, 6, 10, 0, 11, 8, 3, 4, 13, 7, 5, 15, 14, 1, 9 },
- { 12, 5, 1, 15, 14, 13, 4, 10, 0, 7, 6, 3, 9, 2, 8, 11 },
- { 13, 11, 7, 14, 12, 1, 3, 9, 5, 0, 15, 4, 8, 6, 2, 10 },
- { 6, 15, 14, 9, 11, 3, 0, 8, 12, 2, 13, 7, 1, 4, 10, 5 },
- { 10, 2, 8, 4, 7, 6, 1, 5, 15, 11, 9, 14, 3, 12, 13, 0 },
-};
-
-static inline void blake2s_set_lastblock(struct blake2s_state *state)
-{
- if (state->last_node)
- state->f[1] = -1;
- state->f[0] = -1;
-}
-
-static inline void blake2s_increment_counter(struct blake2s_state *state,
- const uint32_t inc)
-{
- state->t[0] += inc;
- state->t[1] += (state->t[0] < inc);
-}
-
-static inline void blake2s_init_param(struct blake2s_state *state,
- const blake2s_param *param)
-{
- int i;
-
- memset(state, 0, sizeof(*state));
- for (i = 0; i < 8; ++i)
- state->h[i] = blake2s_iv[i] ^ le32toh(param->words[i]);
-}
-
-void blake2s_init(struct blake2s_state *state, const size_t outlen)
-{
- blake2s_param param __aligned(__alignof__(uint32_t)) = {
- .digest_length = outlen,
- .fanout = 1,
- .depth = 1
- };
-
- /*WARN_ON(IS_ENABLED(DEBUG) && (!outlen || outlen > BLAKE2S_HASH_SIZE));*/
- blake2s_init_param(state, &param);
-}
-
-void blake2s_init_key(struct blake2s_state *state, const size_t outlen,
- const void *key, const size_t keylen)
-{
- blake2s_param param = { .digest_length = outlen,
- .key_length = keylen,
- .fanout = 1,
- .depth = 1 };
- uint8_t block[BLAKE2S_BLOCK_SIZE] = { 0 };
-
- /*WARN_ON(IS_ENABLED(DEBUG) && (!outlen || outlen > BLAKE2S_HASH_SIZE ||
- !key || !keylen || keylen > BLAKE2S_KEY_SIZE));*/
- blake2s_init_param(state, &param);
- memcpy(block, key, keylen);
- blake2s_update(state, block, BLAKE2S_BLOCK_SIZE);
- explicit_bzero(block, BLAKE2S_BLOCK_SIZE);
-}
-
-static inline void blake2s_compress(struct blake2s_state *state,
- const uint8_t *block, size_t nblocks,
- const uint32_t inc)
-{
- uint32_t m[16];
- uint32_t v[16];
- int i;
-
- /*WARN_ON(IS_ENABLED(DEBUG) &&
- (nblocks > 1 && inc != BLAKE2S_BLOCK_SIZE));*/
-
- while (nblocks > 0) {
- blake2s_increment_counter(state, inc);
- memcpy(m, block, BLAKE2S_BLOCK_SIZE);
- for(i = 0; i < (sizeof(m)/sizeof(m[0])); i++)
- (m[i]) = le32toh((m[i]));
- memcpy(v, state->h, 32);
- v[ 8] = blake2s_iv[0];
- v[ 9] = blake2s_iv[1];
- v[10] = blake2s_iv[2];
- v[11] = blake2s_iv[3];
- v[12] = blake2s_iv[4] ^ state->t[0];
- v[13] = blake2s_iv[5] ^ state->t[1];
- v[14] = blake2s_iv[6] ^ state->f[0];
- v[15] = blake2s_iv[7] ^ state->f[1];
-
-#define G(r, i, a, b, c, d) do { \
- a += b + m[blake2s_sigma[r][2 * i + 0]]; \
- d = ror32(d ^ a, 16); \
- c += d; \
- b = ror32(b ^ c, 12); \
- a += b + m[blake2s_sigma[r][2 * i + 1]]; \
- d = ror32(d ^ a, 8); \
- c += d; \
- b = ror32(b ^ c, 7); \
-} while (0)
-
-#define ROUND(r) do { \
- G(r, 0, v[0], v[ 4], v[ 8], v[12]); \
- G(r, 1, v[1], v[ 5], v[ 9], v[13]); \
- G(r, 2, v[2], v[ 6], v[10], v[14]); \
- G(r, 3, v[3], v[ 7], v[11], v[15]); \
- G(r, 4, v[0], v[ 5], v[10], v[15]); \
- G(r, 5, v[1], v[ 6], v[11], v[12]); \
- G(r, 6, v[2], v[ 7], v[ 8], v[13]); \
- G(r, 7, v[3], v[ 4], v[ 9], v[14]); \
-} while (0)
- ROUND(0);
- ROUND(1);
- ROUND(2);
- ROUND(3);
- ROUND(4);
- ROUND(5);
- ROUND(6);
- ROUND(7);
- ROUND(8);
- ROUND(9);
-
-#undef G
-#undef ROUND
-
- for (i = 0; i < 8; ++i)
- state->h[i] ^= v[i] ^ v[i + 8];
-
- block += BLAKE2S_BLOCK_SIZE;
- --nblocks;
- }
-}
-
-void blake2s_update(struct blake2s_state *state, const uint8_t *in, size_t inlen)
-{
- const size_t fill = BLAKE2S_BLOCK_SIZE - state->buflen;
-
- if (!inlen)
- return;
- if (inlen > fill) {
- memcpy(state->buf + state->buflen, in, fill);
- blake2s_compress(state, state->buf, 1, BLAKE2S_BLOCK_SIZE);
- state->buflen = 0;
- in += fill;
- inlen -= fill;
- }
- if (inlen > BLAKE2S_BLOCK_SIZE) {
- const size_t nblocks =
- (inlen + BLAKE2S_BLOCK_SIZE - 1) / BLAKE2S_BLOCK_SIZE;
- /* Hash one less (full) block than strictly possible */
- blake2s_compress(state, in, nblocks - 1, BLAKE2S_BLOCK_SIZE);
- in += BLAKE2S_BLOCK_SIZE * (nblocks - 1);
- inlen -= BLAKE2S_BLOCK_SIZE * (nblocks - 1);
- }
- memcpy(state->buf + state->buflen, in, inlen);
- state->buflen += inlen;
-}
-
-void blake2s_final(struct blake2s_state *state, uint8_t *out, const size_t outlen)
-{
- int i;
- /*WARN_ON(IS_ENABLED(DEBUG) &&
- (!out || !outlen || outlen > BLAKE2S_HASH_SIZE));*/
- blake2s_set_lastblock(state);
- memset(state->buf + state->buflen, 0,
- BLAKE2S_BLOCK_SIZE - state->buflen); /* Padding */
- blake2s_compress(state, state->buf, 1, state->buflen);
- for(i = 0; i < (sizeof(state->h)/sizeof(state->h[0])); i++)
- (state->h[i]) = htole32((state->h[i]));
-
- memcpy(out, state->h, outlen);
- explicit_bzero(state, sizeof(*state));
-}
-
-void blake2s_hmac(uint8_t *out, const uint8_t *in, const uint8_t *key, const size_t outlen,
- const size_t inlen, const size_t keylen)
-{
- struct blake2s_state state;
- uint8_t x_key[BLAKE2S_BLOCK_SIZE] __aligned(__alignof__(uint32_t)) = { 0 };
- uint8_t i_hash[BLAKE2S_HASH_SIZE] __aligned(__alignof__(uint32_t));
- int i;
-
- if (keylen > BLAKE2S_BLOCK_SIZE) {
- blake2s_init(&state, BLAKE2S_HASH_SIZE);
- blake2s_update(&state, key, keylen);
- blake2s_final(&state, x_key, BLAKE2S_HASH_SIZE);
- } else
- memcpy(x_key, key, keylen);
-
- for (i = 0; i < BLAKE2S_BLOCK_SIZE; ++i)
- x_key[i] ^= 0x36;
-
- blake2s_init(&state, BLAKE2S_HASH_SIZE);
- blake2s_update(&state, x_key, BLAKE2S_BLOCK_SIZE);
- blake2s_update(&state, in, inlen);
- blake2s_final(&state, i_hash, BLAKE2S_HASH_SIZE);
-
- for (i = 0; i < BLAKE2S_BLOCK_SIZE; ++i)
- x_key[i] ^= 0x5c ^ 0x36;
-
- blake2s_init(&state, BLAKE2S_HASH_SIZE);
- blake2s_update(&state, x_key, BLAKE2S_BLOCK_SIZE);
- blake2s_update(&state, i_hash, BLAKE2S_HASH_SIZE);
- blake2s_final(&state, i_hash, BLAKE2S_HASH_SIZE);
-
- memcpy(out, i_hash, outlen);
- explicit_bzero(x_key, BLAKE2S_BLOCK_SIZE);
- explicit_bzero(i_hash, BLAKE2S_HASH_SIZE);
-}