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.

Jul-388 4k Free -

The JUL-388 4K refers to a high-resolution camera model that boasts an impressive 4K ultra-high-definition (UHD) capability. This means it can capture video at a resolution of 3840 x 2160 pixels, offering a level of detail that surpasses traditional Full HD (1080p) cameras by a significant margin. The "JUL-388" designation likely refers to a specific model or series within a brand's lineup, aimed at professional and high-end security applications.

The world of surveillance technology has witnessed tremendous growth over the years, with a constant push towards higher resolutions, better image quality, and enhanced security features. Among the numerous innovations in this field, the JUL-388 4K stands out as a cutting-edge solution designed to revolutionize the way we approach monitoring and security. This article aims to provide an in-depth look at the JUL-388 4K, exploring its features, benefits, and the impact it could have on the future of high-definition surveillance. JUL-388 4K

The JUL-388 4K represents a significant leap forward in surveillance technology, offering unparalleled video quality and a host of smart features. As the demand for high-definition monitoring solutions continues to grow across industries, cameras like the JUL-388 4K are poised to become integral components of modern security strategies. Whether for commercial, residential, or public sector applications, the JUL-388 4K and similar technologies will redefine the standards of surveillance, providing safer, more secure environments for everyone. The JUL-388 4K refers to a high-resolution camera

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.