The decoder ignores all line separators and other characters not found in the basic base64 alphabet. Each line (except the last line) is separated from the next line via a carriage return (\r) followed by a linefeed (\n). The base64 encoder is a simple mechanism to translate strings encoded using the base 64 specification defined within RFC 4648. The encoded output is organized into lines of no more than 76 characters. MIME enforces a limit on line length of Base64 encoded data. This standard defines the Base16, Base32, and Base64 algorithms for encoding and decoding arbitrary binary strings into text strings that can be safely sent by email, used as parts of URLs, or included as part. MIME: The MIME variant uses the Basic Base64 alphabet ( A-Za-z0-9+/). base: Base16, Base32, Base64 Data Encodings This module provides data encoding and decoding as specified in RFC 3548. 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 algorithm converts the input to a set of characters containing A-Z, a-z, 0-9, + and /. Basic: This is the standard Base64 encoding defined in the RFC 4648. Content-Transfer-Encoding 2: Base64 - This encoding was adopted from RFC 1421 Privacy Enhancement for Internet Electronic Mail: Part I: Message Encryption and.Java 8’s Base64 API contains implementations for all the Base64 encoding and decoding variants described in the official RFC 4648.įollowing variants of Base64 encoding and decoding is supported.
Rfc base64 encoding how to#
In this article, you’ll learn how to Base64 decode any Base64 encoded text back to binary data.
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