Encoding serves two purposes: it saves bandwidth at both recipient’s and transmitter’s end and addresses incompatibility issues at the receiver’s end. Your passwords, credit card numbers, WhatsApp messages, and Facetime calls all are converted to a hash before being transmitted to the network.Įncoding is required because the format you capture content in and the format it is received in may vary since web services and OTT platforms often encode the content at the time of transmission. Hash is incomprehensible unless decrypted with a private key. Encryption employs an algorithm that takes in either plain text or metadata of rich media and converts it into a pseudo-random string of hexadecimal called a hash. The decoder ignores all line separators or other characters not found in the basic base64 alphabet.Encoding and encryption are two techniques that play a crucial role in the transmission, exchange, storage, and creation of digital content be it plain text or rich media. Each line (except the last line) is separated from the next line via a carriage return ( \r) followed by a linefeed ( \n). The encoded output is organized into lines of no more than 76 characters. MIME: The MIME variant uses the Basic Base64 alphabet which contains characters from the set A-Z, a-z, 0-9, and /. The decoder rejects data that contains characters outside A-Za-z0-9-_ URL and Filename Safe: It is same as the Basic Base64 encoding except that is replaced by - and / is replaced by _ to make the output URL and filename safe. The decoder rejects data that contains characters outside this set. The output contains characters from the set A-Z, a-z, 0-9, and /. The Java 8 Base64 API supports three different variants of Base64 encoding as described in RFC 4648 and RFC 2045.īasic: This is the standard Base64 encoding defined in RFC 4648. In this article, you’ll learn how to Base64 encode any arbitrary text in Java using the Base64 API that was introduced in Java 8. Base64 is a binary-to-text encoding scheme that represents binary data in a printable ASCII string format.
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