Reorganizing the zerocash tree.

src/zerocash/CoinCommitment.cpp

@@ -0,0 +1,58 @@
+/** @file
+ *****************************************************************************
+
+ Implementation of interfaces for the class CoinCommitment.
+
+ See CoinCommitment.h .
+
+ *****************************************************************************
+ * @author     This file is part of libzerocash, developed by the Zerocash
+ *             project and contributors (see AUTHORS).
+ * @copyright  MIT license (see LICENSE file)
+ *****************************************************************************/
+
+#include <stdexcept>
+#include <stdint.h>
+
+#include "Zerocash.h"
+#include "CoinCommitment.h"
+
+namespace libzerocash {
+
+CoinCommitment::CoinCommitment() : commitmentValue(ZC_CM_SIZE)
+{ }
+
+CoinCommitment::CoinCommitment(const std::vector<unsigned char>& val,
+                               const std::vector<unsigned char>& k) : commitmentValue(ZC_CM_SIZE)
+{
+	std::vector<bool> zeros_192(192, 0);
+    std::vector<bool> cm_internal;
+    std::vector<bool> value_bool(ZC_V_SIZE * 8, 0);
+    std::vector<bool> k_bool(ZC_K_SIZE * 8, 0);
+
+	if (val.size() > ZC_V_SIZE || k.size() > ZC_K_SIZE) {
+		throw std::runtime_error("CoinCommitment: inputs are too large");
+	}
+
+    libzerocash::convertBytesVectorToVector(val, value_bool);
+    libzerocash::convertBytesVectorToVector(k, k_bool);
+
+    libzerocash::concatenateVectors(k_bool, zeros_192, value_bool, cm_internal);
+    std::vector<bool> cm_bool(ZC_CM_SIZE * 8);
+    libzerocash::hashVector(cm_internal, cm_bool);
+    libzerocash::convertVectorToBytesVector(cm_bool, this->commitmentValue);
+}
+
+bool CoinCommitment::operator==(const CoinCommitment& rhs) const {
+	return (this->commitmentValue == rhs.commitmentValue);
+}
+
+bool CoinCommitment::operator!=(const CoinCommitment& rhs) const {
+	return !(*this == rhs);
+}
+
+const std::vector<unsigned char>& CoinCommitment::getCommitmentValue() const {
+    return this->commitmentValue;
+}
+
+} /* namespace libzerocash */