http://i2p-javadocs.i2p/net/i2p/data/Base64.html
Prior to that, it was ignored. Parameters: s - Base 64 encoded string using the I2P alphabet A-Z, a-z, 0-9, -, ~ Returns: the decoded data, null on error decode public static byte[] decode( String s,
boolean useStandardAlphabet) Decodes data from Base64 notation using the I2P alphabet.