Initial Commit

src/checksum.cpp

@@ -0,0 +1,48 @@
+/**
+ * MIT License
+ *
+ * Copyright (c) 2019 EOS Sw/eden
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#include <openssl/sha.h>
+#include <openssl/ripemd.h>
+#include <cstring>
+#include "checksum.h"
+
+inline void sha256d(const unsigned char *data, unsigned int len, unsigned char *out) {
+	SHA256(data, len, out);
+	SHA256(out, 32, out);
+}
+
+#define checksum_impl(name, func) \
+	checksum_t checksum_##name(const unsigned char *data, unsigned int len) { 	\
+																				\
+		checksum_t crc;															\
+		unsigned char hash[32];													\
+																				\
+		func(data, len, hash);													\
+																				\
+		std::memcpy(crc.data(), hash, crc.size());								\
+		return crc;																\
+	}
+
+
+checksum_impl(sha256d, sha256d)
+checksum_impl(ripemd160, RIPEMD160)