MessageDigest Applet

• If Unicode is not selected, the entered text is converted to a byte array, using the default platform encoding (for example Cp1252 == Windows Latin-1 in USA-English). For file data, the bytes are read exactly as binary data with no character encoding conversion.
• If Unicode is selected, the entered text is converted to a byte array using the "UnicodeLittleUnmarked" encoding (commonly used on Win32/Intel) if available. For file data, the bytes are read directly into a byte array, the byte array is converted to a String with default encoding, and then the String is converted back into a byte array using the "UnicodeLittleUnmarked" encoding.

Source code
Further Information
Encoding Types
Hashes and cryptoAPI
Java Cryptography Architecture (JCA) Code Examples & API

Michel I. Gallant
neutron@istar.ca