1 files changed, 61 insertions, 0 deletions
diff --git a/src/3rdparty/SHA-3/Keccak.h b/src/3rdparty/SHA-3/Keccak.h
new file mode 100644
index 0000000000..5d7d6b7533
--- /dev/null
+++ b/src/3rdparty/SHA-3/Keccak.h
@@ -0,0 +1,61 @@
+#pragma once
+
+#include "stdafx.h"
+#include "HashFunction.h"
+
+// State structure
+class KeccakBase : public HashFunction
+{
+public:
+	KeccakBase(unsigned int len);
+	KeccakBase(const KeccakBase& other);
+	virtual ~KeccakBase();
+	KeccakBase& operator=(const KeccakBase& other);
+	virtual std::vector<unsigned char> digest() = 0;
+	virtual void addPadding() = 0;
+	void reset();
+	void keccakf();
+	void addData(uint8_t input) override;
+	void addData(const uint8_t *input, unsigned int off, unsigned int len) override;
+	void processBuffer();
+protected:
+	uint64_t *A;
+	unsigned int blockLen;
+	uint8_t *buffer;
+	unsigned int bufferLen;
+	unsigned int length;
+};
+
+class Sha3 : public KeccakBase
+{
+public:
+	Sha3(unsigned int len);
+	Sha3(const Sha3& other);
+	Sha3& operator=(const Sha3& other);
+	std::vector<unsigned char> digest() override;
+	void addPadding() override;
+private:
+};
+
+class Keccak : public KeccakBase
+{
+public:
+	Keccak(unsigned int len);
+	Keccak(const Keccak& other);
+	Keccak& operator=(const Keccak& other);
+	std::vector<unsigned char> digest() override;
+	void addPadding() override;
+private:
+};
+
+class Shake : public KeccakBase
+{
+public:
+	Shake(unsigned int len, unsigned int d_);
+	Shake(const Shake& other);
+	Shake& operator=(const Shake& other);
+	std::vector<unsigned char> digest() override;
+	void addPadding() override;
+private:
+	unsigned int d;
+};