summaryrefslogtreecommitdiff
path: root/include/crypto/sha256_base.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/crypto/sha256_base.h')
-rw-r--r--include/crypto/sha256_base.h135
1 files changed, 0 insertions, 135 deletions
diff --git a/include/crypto/sha256_base.h b/include/crypto/sha256_base.h
deleted file mode 100644
index e0418818d63c..000000000000
--- a/include/crypto/sha256_base.h
+++ /dev/null
@@ -1,135 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * sha256_base.h - core logic for SHA-256 implementations
- *
- * Copyright (C) 2015 Linaro Ltd <ard.biesheuvel@linaro.org>
- */
-
-#ifndef _CRYPTO_SHA256_BASE_H
-#define _CRYPTO_SHA256_BASE_H
-
-#include <asm/byteorder.h>
-#include <linux/unaligned.h>
-#include <crypto/internal/hash.h>
-#include <crypto/sha2.h>
-#include <linux/string.h>
-#include <linux/types.h>
-
-typedef void (sha256_block_fn)(struct sha256_state *sst, u8 const *src,
- int blocks);
-
-static inline int sha224_base_init(struct shash_desc *desc)
-{
- struct sha256_state *sctx = shash_desc_ctx(desc);
-
- sha224_init(sctx);
- return 0;
-}
-
-static inline int sha256_base_init(struct shash_desc *desc)
-{
- struct sha256_state *sctx = shash_desc_ctx(desc);
-
- sha256_init(sctx);
- return 0;
-}
-
-static inline int lib_sha256_base_do_update(struct sha256_state *sctx,
- const u8 *data,
- unsigned int len,
- sha256_block_fn *block_fn)
-{
- unsigned int partial = sctx->count % SHA256_BLOCK_SIZE;
-
- sctx->count += len;
-
- if (unlikely((partial + len) >= SHA256_BLOCK_SIZE)) {
- int blocks;
-
- if (partial) {
- int p = SHA256_BLOCK_SIZE - partial;
-
- memcpy(sctx->buf + partial, data, p);
- data += p;
- len -= p;
-
- block_fn(sctx, sctx->buf, 1);
- }
-
- blocks = len / SHA256_BLOCK_SIZE;
- len %= SHA256_BLOCK_SIZE;
-
- if (blocks) {
- block_fn(sctx, data, blocks);
- data += blocks * SHA256_BLOCK_SIZE;
- }
- partial = 0;
- }
- if (len)
- memcpy(sctx->buf + partial, data, len);
-
- return 0;
-}
-
-static inline int sha256_base_do_update(struct shash_desc *desc,
- const u8 *data,
- unsigned int len,
- sha256_block_fn *block_fn)
-{
- struct sha256_state *sctx = shash_desc_ctx(desc);
-
- return lib_sha256_base_do_update(sctx, data, len, block_fn);
-}
-
-static inline int lib_sha256_base_do_finalize(struct sha256_state *sctx,
- sha256_block_fn *block_fn)
-{
- const int bit_offset = SHA256_BLOCK_SIZE - sizeof(__be64);
- __be64 *bits = (__be64 *)(sctx->buf + bit_offset);
- unsigned int partial = sctx->count % SHA256_BLOCK_SIZE;
-
- sctx->buf[partial++] = 0x80;
- if (partial > bit_offset) {
- memset(sctx->buf + partial, 0x0, SHA256_BLOCK_SIZE - partial);
- partial = 0;
-
- block_fn(sctx, sctx->buf, 1);
- }
-
- memset(sctx->buf + partial, 0x0, bit_offset - partial);
- *bits = cpu_to_be64(sctx->count << 3);
- block_fn(sctx, sctx->buf, 1);
-
- return 0;
-}
-
-static inline int sha256_base_do_finalize(struct shash_desc *desc,
- sha256_block_fn *block_fn)
-{
- struct sha256_state *sctx = shash_desc_ctx(desc);
-
- return lib_sha256_base_do_finalize(sctx, block_fn);
-}
-
-static inline int lib_sha256_base_finish(struct sha256_state *sctx, u8 *out,
- unsigned int digest_size)
-{
- __be32 *digest = (__be32 *)out;
- int i;
-
- for (i = 0; digest_size > 0; i++, digest_size -= sizeof(__be32))
- put_unaligned_be32(sctx->state[i], digest++);
-
- memzero_explicit(sctx, sizeof(*sctx));
- return 0;
-}
-
-static inline int sha256_base_finish(struct shash_desc *desc, u8 *out)
-{
- unsigned int digest_size = crypto_shash_digestsize(desc->tfm);
- struct sha256_state *sctx = shash_desc_ctx(desc);
-
- return lib_sha256_base_finish(sctx, out, digest_size);
-}
-
-#endif /* _CRYPTO_SHA256_BASE_H */