[java/jvm] use native SHA-1 and SHA-256 methods (see #9298)

there's a little bit of copy-paste going on here but oh well

std/haxe/crypto/Sha256.hx

@@ -45,7 +45,7 @@ class Sha256 {
 		return out;
 	}
 
-	public function new() {}
+	function new() {}
 
 	function doEncode(m:Array<Int>, l:Int):Array<Int> {
 		var K:Array<Int> = [

std/java/_std/haxe/crypto/Sha1.hx

@@ -0,0 +1,42 @@
+/*
+ * Copyright (C)2005-2019 Haxe Foundation
+ *
+ * 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.
+ */
+package haxe.crypto;
+
+import haxe.io.Bytes;
+import haxe.io.BytesData;
+import java.security.MessageDigest;
+import java.nio.charset.StandardCharsets;
+
+@:coreApi
+class Sha1 {
+	public static function encode(s:String):String {
+		return Bytes.ofData(digest((cast s : java.NativeString).getBytes(StandardCharsets.UTF_8))).toHex();
+	}
+
+	public static function make(b:haxe.io.Bytes):haxe.io.Bytes {
+		return Bytes.ofData(digest(b.getData()));
+	}
+
+	inline static function digest(b:BytesData):BytesData {
+		return MessageDigest.getInstance("SHA-1").digest(b);
+	}
+}

std/java/_std/haxe/crypto/Sha256.hx

@@ -0,0 +1,42 @@
+/*
+ * Copyright (C)2005-2019 Haxe Foundation
+ *
+ * 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.
+ */
+package haxe.crypto;
+
+import haxe.io.Bytes;
+import haxe.io.BytesData;
+import java.security.MessageDigest;
+import java.nio.charset.StandardCharsets;
+
+@:coreApi
+class Sha256 {
+	public static function encode(s:String):String {
+		return Bytes.ofData(digest((cast s : java.NativeString).getBytes(StandardCharsets.UTF_8))).toHex();
+	}
+
+	public static function make(b:haxe.io.Bytes):haxe.io.Bytes {
+		return Bytes.ofData(digest(b.getData()));
+	}
+
+	inline static function digest(b:BytesData):BytesData {
+		return MessageDigest.getInstance("SHA-256").digest(b);
+	}
+}