1 files changed, 69 insertions, 0 deletions

diff --git a/twrpDigest/twrpSHA.cpp b/twrpDigest/twrpSHA.cpp
new file mode 100644
index 000000000..60262e755
--- /dev/null
+++ b/twrpDigest/twrpSHA.cpp
@@ -0,0 +1,69 @@
+/*
+	Copyright 2012 to 2017 TeamWin
+	This file is part of TWRP/TeamWin Recovery Project.
+
+	TWRP is free software: you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation, either version 3 of the License, or
+	(at your option) any later version.
+
+	TWRP 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 General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with TWRP.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <vector>
+#include <string>
+#include <sstream>
+#include <string>
+#include <openssl/sha.h>
+#include "twrpDigest.hpp"
+#include "twrpSHA.hpp"
+
+twrpSHA256::twrpSHA256() {
+	twrpSHA256::init();
+}
+
+void twrpSHA256::init(void) {
+	SHA256_Init(&sha256_ctx);
+}
+
+void twrpSHA256::update(const unsigned char* stream, size_t len) {
+	SHA256_Update(&sha256_ctx, stream, len);
+}
+
+void twrpSHA256::finalize(void) {
+	SHA256_Final(sha256_store, &sha256_ctx);
+}
+
+std::string twrpSHA256::return_digest_string(void) {
+	twrpSHA256::finalize();
+	std::string digest_str = twrpDigest::hexify(sha256_store, SHA256_DIGEST_LENGTH);
+	return digest_str;
+}
+
+twrpSHA512::twrpSHA512() {
+	twrpSHA512::init();
+}
+
+void twrpSHA512::init(void) {
+	SHA512_Init(&sha512_ctx);
+}
+
+void twrpSHA512::update(const unsigned char* stream, size_t len) {
+	SHA512_Update(&sha512_ctx, stream, len);
+}
+
+void twrpSHA512::finalize(void) {
+	SHA512_Final(sha512_store, &sha512_ctx);
+}
+
+std::string twrpSHA512::return_digest_string(void) {
+	twrpSHA512::finalize();
+	std::string digest_str = twrpDigest::hexify(sha512_store, SHA512_DIGEST_LENGTH);
+	return digest_str;
+}