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Diffstat (limited to 'include/crypto/internal/blake2b.h')
-rw-r--r--include/crypto/internal/blake2b.h101
1 files changed, 0 insertions, 101 deletions
diff --git a/include/crypto/internal/blake2b.h b/include/crypto/internal/blake2b.h
deleted file mode 100644
index 3e09e2485306..000000000000
--- a/include/crypto/internal/blake2b.h
+++ /dev/null
@@ -1,101 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 OR MIT */
-/*
- * Helper functions for BLAKE2b implementations.
- * Keep this in sync with the corresponding BLAKE2s header.
- */
-
-#ifndef _CRYPTO_INTERNAL_BLAKE2B_H
-#define _CRYPTO_INTERNAL_BLAKE2B_H
-
-#include <asm/byteorder.h>
-#include <crypto/blake2b.h>
-#include <crypto/internal/hash.h>
-#include <linux/array_size.h>
-#include <linux/compiler.h>
-#include <linux/build_bug.h>
-#include <linux/errno.h>
-#include <linux/math.h>
-#include <linux/string.h>
-#include <linux/types.h>
-
-static inline void blake2b_set_lastblock(struct blake2b_state *state)
-{
- state->f[0] = -1;
- state->f[1] = 0;
-}
-
-static inline void blake2b_set_nonlast(struct blake2b_state *state)
-{
- state->f[0] = 0;
- state->f[1] = 0;
-}
-
-typedef void (*blake2b_compress_t)(struct blake2b_state *state,
- const u8 *block, size_t nblocks, u32 inc);
-
-/* Helper functions for shash implementations of BLAKE2b */
-
-struct blake2b_tfm_ctx {
- u8 key[BLAKE2B_BLOCK_SIZE];
- unsigned int keylen;
-};
-
-static inline int crypto_blake2b_setkey(struct crypto_shash *tfm,
- const u8 *key, unsigned int keylen)
-{
- struct blake2b_tfm_ctx *tctx = crypto_shash_ctx(tfm);
-
- if (keylen > BLAKE2B_KEY_SIZE)
- return -EINVAL;
-
- BUILD_BUG_ON(BLAKE2B_KEY_SIZE > BLAKE2B_BLOCK_SIZE);
-
- memcpy(tctx->key, key, keylen);
- memset(tctx->key + keylen, 0, BLAKE2B_BLOCK_SIZE - keylen);
- tctx->keylen = keylen;
-
- return 0;
-}
-
-static inline int crypto_blake2b_init(struct shash_desc *desc)
-{
- const struct blake2b_tfm_ctx *tctx = crypto_shash_ctx(desc->tfm);
- struct blake2b_state *state = shash_desc_ctx(desc);
- unsigned int outlen = crypto_shash_digestsize(desc->tfm);
-
- __blake2b_init(state, outlen, tctx->keylen);
- return tctx->keylen ?
- crypto_shash_update(desc, tctx->key, BLAKE2B_BLOCK_SIZE) : 0;
-}
-
-static inline int crypto_blake2b_update_bo(struct shash_desc *desc,
- const u8 *in, unsigned int inlen,
- blake2b_compress_t compress)
-{
- struct blake2b_state *state = shash_desc_ctx(desc);
-
- blake2b_set_nonlast(state);
- compress(state, in, inlen / BLAKE2B_BLOCK_SIZE, BLAKE2B_BLOCK_SIZE);
- return inlen - round_down(inlen, BLAKE2B_BLOCK_SIZE);
-}
-
-static inline int crypto_blake2b_finup(struct shash_desc *desc, const u8 *in,
- unsigned int inlen, u8 *out,
- blake2b_compress_t compress)
-{
- struct blake2b_state *state = shash_desc_ctx(desc);
- u8 buf[BLAKE2B_BLOCK_SIZE];
- int i;
-
- memcpy(buf, in, inlen);
- memset(buf + inlen, 0, BLAKE2B_BLOCK_SIZE - inlen);
- blake2b_set_lastblock(state);
- compress(state, buf, 1, inlen);
- for (i = 0; i < ARRAY_SIZE(state->h); i++)
- __cpu_to_le64s(&state->h[i]);
- memcpy(out, state->h, crypto_shash_digestsize(desc->tfm));
- memzero_explicit(buf, sizeof(buf));
- return 0;
-}
-
-#endif /* _CRYPTO_INTERNAL_BLAKE2B_H */