Base64 encoding and decoding of data from Java. Encode and decode methods for Strings, byte arrays, and streams.

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English

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Base64 is needed in many places other than its original use as an encoding format for transferring attachments in email. It can be used anytime binary or arbitrary data needs to be represented in common printable characters. For example to connect to a web page that requires a username and password (basic authentication) you need to Base64 encode the username and password. (See the example)

Example

URL url = new URL("http://....");
HttpURLConnection connection = (HttpURLConnection)url.openConnection();
connection.setRequestProperty(
    "Authorization", 
    "Basic " + Base64.encode(
        username + ":" + password
    )
);      
InputStream in = connection.getInputStream();

Use base64 to add a basic authentication to an HTTP request.

Be aware that Base64 encoding in not encryption. Base64 scrambles the output and it may appear to be unreadable, but it is easily deciphered by anybody with a little experience or time. Base64 encoded strings will often end in one or two equal signs, and they will have only letters, numbers, pluses, and slashes. Once somebody figures out that it is in Base64, it is just a matter of running the decode method on it. Furthermore, real encryption algorithms will change the entire output if one bit in the input changes. If you change a letter in a your message and then re-encode it with Base64, only a few characters will change. Base64 is not a substitute for encryption. Base64 used this way is obfuscation, and rather poor obfuscation at that. It may be a disservice to your users to use Base64 as obfuscation because it gives them the impression that their data is encrypted when it really isn't.

Stranger.sins.s02e03.german.1080p.web.h264-haxe... — [better]

is a German erotic reality TV series produced by RTL Studios for the streaming platform RTL+. It's often described as "the ultimate social and sexual reality show". The premise involves real couples traveling to a secluded location in Mexico to participate in a one-of-a-kind experiment. The goal is to explore hidden desires and fulfill erotic fantasies they previously lacked the courage to pursue. The show is known for its bold blend of eroticism, psychology, and relationship dynamics, pushing taboos and redefining the boundaries of reality television.

: This represents the video compression standard used to encode the file. Advanced Video Coding (AVC), universally known as H.264, is a highly compatible codec that balances efficient file sizes with high visual fidelity, making it playable on almost all modern smartphones, televisions, and computers. Stranger.Sins.S02E03.GERMAN.1080p.WEB.h264-HAXE...

The signature tag of the specific scene or peer-to-peer release group responsible for encoding and distributing the container file. Legitimate Streaming Alternatives is a German erotic reality TV series produced

The keyword string breaks down into five distinct metadata components: The goal is to explore hidden desires and

Stranger Sins is a scripted reality or "docu-soap" style series that explores the complex, often clandestine world of adult relationships, fetishes, and experimental lifestyles. Each episode typically follows individuals or couples as they navigate their desires, often pushing the boundaries of traditional societal norms. Season 2, Episode 3: Plot Dynamics

Links

Author	License	Features
Stephen Ostermiller com.Ostermiller.util.Base64	Open source, GPL	Encodes and decodes strings, byte arrays, files, and streams from static methods.
Robert W. Harder Base64	Open source, public domain	Encodes and decodes strings, byte arrays, and objects from static methods. It will encode and decode streams if you instantiate a Base64.InputStream or a Base64.OutputStream.
Roedy Green Java Glossary com.mindprod.base64.base64	Open source, freeware (except military)	Encodes from byte arrays to strings, decodes from strings to byte arrays.
Tom Daley JavaWorld Tip	unknown	Annotated code and nifty graphic that shows how Base64 encoding works. Supports byte array to byte array operations.
Sinotar com.sinotar.algorithm.Base64	Open source, free only for personal use.	Encodes from byte arrays to strings, decodes from strings to byte arrays.

License

The OstermillerUtils library 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 2 of the License or (at your option) any later version.

This program 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.