VeraCrypt
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+/*
+ BLAKE2 reference source code package - reference C implementations
+
+ Copyright 2012, Samuel Neves <sneves@dei.uc.pt>. You may use this under the
+ terms of the CC0, the OpenSSL Licence, or the Apache Public License 2.0, at
+ your option. The terms of these licenses can be found at:
+
+ - CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0
+ - OpenSSL license : https://www.openssl.org/source/license.html
+ - Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0
+
+ More information about the BLAKE2 hash function can be found at
+ https://blake2.net.
+*/
+
+/* Adapted for VeraCrypt */
+
+#ifndef BLAKE2_H
+#define BLAKE2_H
+#include "Common/Tcdefs.h"
+
+#if defined(_MSC_VER)
+#ifdef TC_WINDOWS_BOOT
+#define BLAKE2_PACKED(x) x
+#else
+#define BLAKE2_PACKED(x) __pragma(pack(push, 1)) x __pragma(pack(pop))
+#endif
+
+#else
+#define BLAKE2_PACKED(x) x __attribute__((packed))
+#endif
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+ enum blake2s_constant
+ {
+ BLAKE2S_BLOCKBYTES = 64,
+ BLAKE2S_OUTBYTES = 32,
+ BLAKE2S_KEYBYTES = 32,
+ BLAKE2S_SALTBYTES = 8,
+ BLAKE2S_PERSONALBYTES = 8
+ };
+
+ typedef struct blake2s_state__
+ {
+ uint32 h[8];
+ uint32 t[2];
+ uint32 f[2];
+ uint8 buf[BLAKE2S_BLOCKBYTES];
+ size_t buflen;
+ size_t outlen;
+ uint8 last_node;
+ } blake2s_state;
+
+#ifdef TC_WINDOWS_BOOT
+ #pragma pack(1)
+#endif
+
+ BLAKE2_PACKED(struct blake2s_param__
+ {
+ uint8 digest_length; /* 1 */
+ uint8 key_length; /* 2 */
+ uint8 fanout; /* 3 */
+ uint8 depth; /* 4 */
+ uint32 leaf_length; /* 8 */
+ uint32 node_offset; /* 12 */
+ uint16 xof_length; /* 14 */
+ uint8 node_depth; /* 15 */
+ uint8 inner_length; /* 16 */
+ /* uint8 reserved[0]; */
+ uint8 salt[BLAKE2S_SALTBYTES]; /* 24 */
+ uint8 personal[BLAKE2S_PERSONALBYTES]; /* 32 */
+ });
+
+#ifdef TC_WINDOWS_BOOT
+ #pragma pack()
+#endif
+
+ typedef struct blake2s_param__ blake2s_param;
+
+
+ /* Padded structs result in a compile-time error */
+ enum {
+ BLAKE2_DUMMY_1 = 1/(int)(sizeof(blake2s_param) == BLAKE2S_OUTBYTES)
+ };
+
+ /* Streaming API */
+ void blake2s_init( blake2s_state *S );
+ void blake2s_init_param( blake2s_state *S, const blake2s_param *P );
+ void blake2s_update( blake2s_state *S, const void *in, size_t inlen );
+ int blake2s_final( blake2s_state *S, unsigned char *out );
+
+ /* Simple API */
+ int blake2s( void *out, const void *in, size_t inlen );
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif