Import libecc v0.9.7vendor/libecc/0.9.7vendor/libecc

libecc will be used privately for upcoming ECC support in pkg(7).  Other
crypto consumers should continue using openssl.

1 files changed, 64 insertions, 0 deletions

diff --git a/include/libecc/hash/bash256.h b/include/libecc/hash/bash256.h
new file mode 100644
index 000000000000..ed55489ab8dd
--- /dev/null
+++ b/include/libecc/hash/bash256.h
@@ -0,0 +1,64 @@
+/*
+ *  Copyright (C) 2022 - This file is part of libecc project
+ *
+ *  Authors:
+ *      Ryad BENADJILA <ryadbenadjila@gmail.com>
+ *      Arnaud EBALARD <arnaud.ebalard@ssi.gouv.fr>
+ *
+ *  This software is licensed under a dual BSD and GPL v2 license.
+ *  See LICENSE file at the root folder of the project.
+ */
+#include <libecc/lib_ecc_config.h>
+#ifdef WITH_HASH_BASH256
+
+#ifndef __BASH256_H__
+#define __BASH256_H__
+
+#include <libecc/words/words.h>
+#include <libecc/utils/utils.h>
+#include <libecc/hash/bash.h>
+
+#define BASH256_BLOCK_SIZE   128
+#define BASH256_DIGEST_SIZE  32
+#define BASH256_DIGEST_SIZE_BITS  256
+
+/* Compute max hash digest and block sizes */
+#ifndef MAX_DIGEST_SIZE
+#define MAX_DIGEST_SIZE	0
+#endif
+#if (MAX_DIGEST_SIZE < BASH256_DIGEST_SIZE)
+#undef MAX_DIGEST_SIZE
+#define MAX_DIGEST_SIZE BASH256_DIGEST_SIZE
+#endif
+
+#ifndef MAX_DIGEST_SIZE_BITS
+#define MAX_DIGEST_SIZE_BITS    0
+#endif
+#if (MAX_DIGEST_SIZE_BITS < BASH256_DIGEST_SIZE_BITS)
+#undef MAX_DIGEST_SIZE_BITS
+#define MAX_DIGEST_SIZE_BITS BASH256_DIGEST_SIZE_BITS
+#endif
+
+#ifndef MAX_BLOCK_SIZE
+#define MAX_BLOCK_SIZE  0
+#endif
+#if (MAX_BLOCK_SIZE < BASH256_BLOCK_SIZE)
+#undef MAX_BLOCK_SIZE
+#define MAX_BLOCK_SIZE BASH256_BLOCK_SIZE
+#endif
+
+#define BASH256_HASH_MAGIC ((word_t)(0x72839273873434aaULL))
+#define BASH256_HASH_CHECK_INITIALIZED(A, ret, err) \
+        MUST_HAVE((((void *)(A)) != NULL) && ((A)->magic == BASH256_HASH_MAGIC), ret, err)
+
+typedef bash_context bash256_context;
+
+ATTRIBUTE_WARN_UNUSED_RET int bash256_init(bash256_context *ctx);
+ATTRIBUTE_WARN_UNUSED_RET int bash256_update(bash256_context *ctx, const u8 *input, u32 ilen);
+ATTRIBUTE_WARN_UNUSED_RET int bash256_final(bash256_context *ctx, u8 output[BASH256_DIGEST_SIZE]);
+ATTRIBUTE_WARN_UNUSED_RET int bash256_scattered(const u8 **inputs, const u32 *ilens,
+		       u8 output[BASH256_DIGEST_SIZE]);
+ATTRIBUTE_WARN_UNUSED_RET int bash256(const u8 *input, u32 ilen, u8 output[BASH256_DIGEST_SIZE]);
+
+#endif /* __BASH256_H__ */
+#endif /* WITH_HASH_BASH256 */