From f19f813537c7aea1c20749c914e756b54a9c3cf5 Mon Sep 17 00:00:00 2001
From: Igor Pavlov <87184205+ip7z@users.noreply.github.com>
Date: Mon, 27 Dec 2021 00:00:00 +0000
Subject: '21.07'

---
 C/Blake2.h | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 C/Blake2.h

(limited to 'C/Blake2.h')

diff --git a/C/Blake2.h b/C/Blake2.h
new file mode 100644
index 0000000..14f3cb6
--- /dev/null
+++ b/C/Blake2.h
@@ -0,0 +1,48 @@
+/* Blake2.h -- BLAKE2 Hash
+2015-06-30 : Igor Pavlov : Public domain
+2015 : Samuel Neves : Public domain */
+
+#ifndef __BLAKE2_H
+#define __BLAKE2_H
+
+#include "7zTypes.h"
+
+EXTERN_C_BEGIN
+
+#define BLAKE2S_BLOCK_SIZE 64
+#define BLAKE2S_DIGEST_SIZE 32
+#define BLAKE2SP_PARALLEL_DEGREE 8
+
+typedef struct
+{
+  UInt32 h[8];
+  UInt32 t[2];
+  UInt32 f[2];
+  Byte buf[BLAKE2S_BLOCK_SIZE];
+  UInt32 bufPos;
+  UInt32 lastNode_f1;
+  UInt32 dummy[2]; /* for sizeof(CBlake2s) alignment */
+} CBlake2s;
+
+/* You need to xor CBlake2s::h[i] with input parameter block after Blake2s_Init0() */
+/*
+void Blake2s_Init0(CBlake2s *p);
+void Blake2s_Update(CBlake2s *p, const Byte *data, size_t size);
+void Blake2s_Final(CBlake2s *p, Byte *digest);
+*/
+
+
+typedef struct
+{
+  CBlake2s S[BLAKE2SP_PARALLEL_DEGREE];
+  unsigned bufPos;
+} CBlake2sp;
+
+
+void Blake2sp_Init(CBlake2sp *p);
+void Blake2sp_Update(CBlake2sp *p, const Byte *data, size_t size);
+void Blake2sp_Final(CBlake2sp *p, Byte *digest);
+
+EXTERN_C_END
+
+#endif
-- 
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