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-rw-r--r--src/crypto/zinc/blake2s/blake2s.c (renamed from src/crypto/blake2s.c)113
1 files changed, 49 insertions, 64 deletions
diff --git a/src/crypto/blake2s.c b/src/crypto/zinc/blake2s/blake2s.c
index 322a682..76232a3 100644
--- a/src/crypto/blake2s.c
+++ b/src/crypto/zinc/blake2s/blake2s.c
@@ -1,11 +1,15 @@
/* SPDX-License-Identifier: GPL-2.0
*
+ * Copyright (C) 2012 Samuel Neves <sneves@dei.uc.pt>. All Rights Reserved.
* Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
*
- * Original author: Samuel Neves <sneves@dei.uc.pt>
+ * This is an implementation of the BLAKE2s hash and PRF functions.
+ *
+ * Information: https://blake2.net/
+ *
*/
-#include "blake2s.h"
+#include <zinc/blake2s.h>
#include <linux/types.h>
#include <linux/string.h>
@@ -36,16 +40,16 @@ static const u32 blake2s_iv[8] = {
};
static const u8 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},
+ { 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)
@@ -55,13 +59,15 @@ static inline void blake2s_set_lastblock(struct blake2s_state *state)
state->f[0] = -1;
}
-static inline void blake2s_increment_counter(struct blake2s_state *state, const u32 inc)
+static inline void blake2s_increment_counter(struct blake2s_state *state,
+ const u32 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)
+static inline void blake2s_init_param(struct blake2s_state *state,
+ const blake2s_param *param)
{
int i;
@@ -83,53 +89,42 @@ void blake2s_init(struct blake2s_state *state, const size_t outlen)
#endif
blake2s_init_param(state, &param);
}
+EXPORT_SYMBOL(blake2s_init);
-void blake2s_init_key(struct blake2s_state *state, const size_t outlen, const void *key, const size_t keylen)
+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
- };
+ blake2s_param param = { .digest_length = outlen,
+ .key_length = keylen,
+ .fanout = 1,
+ .depth = 1 };
u8 block[BLAKE2S_BLOCKBYTES] = { 0 };
#ifdef DEBUG
- BUG_ON(!outlen || outlen > BLAKE2S_OUTBYTES || !key || !keylen || keylen > BLAKE2S_KEYBYTES);
+ BUG_ON(!outlen || outlen > BLAKE2S_OUTBYTES || !key || !keylen ||
+ keylen > BLAKE2S_KEYBYTES);
#endif
blake2s_init_param(state, &param);
memcpy(block, key, keylen);
blake2s_update(state, block, BLAKE2S_BLOCKBYTES);
memzero_explicit(block, BLAKE2S_BLOCKBYTES);
}
+EXPORT_SYMBOL(blake2s_init_key);
-#ifdef CONFIG_X86_64
-#include <asm/cpufeature.h>
-#include <asm/processor.h>
-#include <asm/fpu/api.h>
-#include <asm/simd.h>
-static bool blake2s_use_avx __ro_after_init;
-static bool blake2s_use_avx512 __ro_after_init;
+#ifndef HAVE_BLAKE2S_ARCH_IMPLEMENTATION
void __init blake2s_fpu_init(void)
{
-#ifndef CONFIG_UML
- blake2s_use_avx = boot_cpu_has(X86_FEATURE_AVX) && cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, NULL);
-#ifndef COMPAT_CANNOT_USE_AVX512
- blake2s_use_avx512 = boot_cpu_has(X86_FEATURE_AVX) && boot_cpu_has(X86_FEATURE_AVX2) && boot_cpu_has(X86_FEATURE_AVX512F) && boot_cpu_has(X86_FEATURE_AVX512VL) && cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM | XFEATURE_MASK_AVX512, NULL);
-#endif
-#endif
}
-#ifdef CONFIG_AS_AVX
-asmlinkage void blake2s_compress_avx(struct blake2s_state *state, const u8 *block, const size_t nblocks, const u32 inc);
-#endif
-#ifdef CONFIG_AS_AVX512
-asmlinkage void blake2s_compress_avx512(struct blake2s_state *state, const u8 *block, const size_t nblocks, const u32 inc);
-#endif
-#else
-void __init blake2s_fpu_init(void) { }
+static inline bool blake2s_arch(struct blake2s_state *state, const u8 *block,
+ const size_t nblocks, const u32 inc)
+{
+ return false;
+}
#endif
-static inline void blake2s_compress(struct blake2s_state *state, const u8 *block, size_t nblocks, const u32 inc)
+static inline void blake2s_compress(struct blake2s_state *state,
+ const u8 *block, size_t nblocks,
+ const u32 inc)
{
u32 m[16];
u32 v[16];
@@ -139,24 +134,8 @@ static inline void blake2s_compress(struct blake2s_state *state, const u8 *block
BUG_ON(nblocks > 1 && inc != BLAKE2S_BLOCKBYTES);
#endif
-#ifdef CONFIG_X86_64
-#ifdef CONFIG_AS_AVX512
- if (blake2s_use_avx512 && irq_fpu_usable()) {
- kernel_fpu_begin();
- blake2s_compress_avx512(state, block, nblocks, inc);
- kernel_fpu_end();
+ if (blake2s_arch(state, block, nblocks, inc))
return;
- }
-#endif
-#ifdef CONFIG_AS_AVX
- if (blake2s_use_avx && irq_fpu_usable()) {
- kernel_fpu_begin();
- blake2s_compress_avx(state, block, nblocks, inc);
- kernel_fpu_end();
- return;
- }
-#endif
-#endif
while (nblocks > 0) {
blake2s_increment_counter(state, inc);
@@ -234,7 +213,8 @@ void blake2s_update(struct blake2s_state *state, const u8 *in, size_t inlen)
inlen -= fill;
}
if (inlen > BLAKE2S_BLOCKBYTES) {
- const size_t nblocks = (inlen + BLAKE2S_BLOCKBYTES - 1) / BLAKE2S_BLOCKBYTES;
+ const size_t nblocks =
+ (inlen + BLAKE2S_BLOCKBYTES - 1) / BLAKE2S_BLOCKBYTES;
/* Hash one less (full) block than strictly possible */
blake2s_compress(state, in, nblocks - 1, BLAKE2S_BLOCKBYTES);
in += BLAKE2S_BLOCKBYTES * (nblocks - 1);
@@ -243,15 +223,19 @@ void blake2s_update(struct blake2s_state *state, const u8 *in, size_t inlen)
memcpy(state->buf + state->buflen, in, inlen);
state->buflen += inlen;
}
+EXPORT_SYMBOL(blake2s_update);
void __blake2s_final(struct blake2s_state *state)
{
blake2s_set_lastblock(state);
- memset(state->buf + state->buflen, 0, BLAKE2S_BLOCKBYTES - state->buflen); /* Padding */
+ memset(state->buf + state->buflen, 0,
+ BLAKE2S_BLOCKBYTES - state->buflen); /* Padding */
blake2s_compress(state, state->buf, 1, state->buflen);
}
+EXPORT_SYMBOL(__blake2s_final);
-void blake2s_hmac(u8 *out, const u8 *in, const u8 *key, const size_t outlen, const size_t inlen, const size_t keylen)
+void blake2s_hmac(u8 *out, const u8 *in, const u8 *key, const size_t outlen,
+ const size_t inlen, const size_t keylen)
{
struct blake2s_state state;
u8 x_key[BLAKE2S_BLOCKBYTES] __aligned(__alignof__(u32)) = { 0 };
@@ -285,5 +269,6 @@ void blake2s_hmac(u8 *out, const u8 *in, const u8 *key, const size_t outlen, con
memzero_explicit(x_key, BLAKE2S_BLOCKBYTES);
memzero_explicit(i_hash, BLAKE2S_OUTBYTES);
}
+EXPORT_SYMBOL(blake2s_hmac);
#include "../selftest/blake2s.h"
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.