sha2 hash functors

src/sha_hash.h

@@ -0,0 +1,63 @@
+
+/*
+ * This file is part of Codecrypt.
+ *
+ * Codecrypt is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or (at
+ * your option) any later version.
+ *
+ * Codecrypt is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Codecrypt. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _sha_hash_h_
+#define _sha_hash_h_
+
+#include "hash.h"
+#include "sha2.h"
+#include <stdint.h>
+
+class sha256hash : public hash_func
+{
+public:
+	uint size() {
+		return SHA256_DIGEST_LENGTH;
+	}
+
+	std::vector<byte> operator() (const std::vector<byte>&a) {
+		SHA256_CTX ctx;
+		SHA256_Init (&ctx);
+		SHA256_Update (&ctx, (const uint8_t*) & (a[0]), a.size() );
+		std::vector<byte> r;
+		r.resize (size() );
+		SHA256_Final ( (uint8_t*) & (r[0]), &ctx);
+		return r;
+	}
+};
+
+class sha512hash : public hash_func
+{
+public:
+	uint size() {
+		return SHA512_DIGEST_LENGTH;
+	}
+
+	std::vector<byte> operator() (const std::vector<byte>&a) {
+		SHA512_CTX ctx;
+		SHA512_Init (&ctx);
+		SHA512_Update (&ctx, (const uint8_t*) & (a[0]), a.size() );
+		std::vector<byte> r;
+		r.resize (size() );
+		SHA512_Final ( (uint8_t*) & (r[0]), &ctx);
+		return r;
+	}
+};
+
+
+#endif