Roll forward to cl/338482889

Signed-off-by: Alexey Polyudov <apolyudov@google.com>
Change-Id: I9850950db8bd84f0904ea1a413151887f52098cf

cpp/platform/api/crypto.h

@@ -0,0 +1,24 @@
+#ifndef PLATFORM_API_CRYPTO_H_
+#define PLATFORM_API_CRYPTO_H_
+
+#include "platform/base/byte_array.h"
+#include "absl/strings/string_view.h"
+
+namespace location {
+namespace nearby {
+
+// A provider of standard hashing algorithms.
+class Crypto {
+ public:
+  // Initialize global crypto state.
+  static void Init();
+  // Return MD5 hash of input.
+  static ByteArray Md5(absl::string_view input);
+  // Return SHA256 hash of input.
+  static ByteArray Sha256(absl::string_view input);
+};
+
+}  // namespace nearby
+}  // namespace location
+
+#endif  // PLATFORM_API_CRYPTO_H_