Base64 Encoding

Data Encoding Tutorials - Herong's Tutorial Examples

∟Base64 Encoding

This chapter provides notes and tutorials on Base64 encoding algorithm and implementations. Topics include reviewing Base64 encoding algorithm; W3C implementation and Sun implementation in Java.

Base64 Encoding Algorithm

RFC 1421 - Privacy Enhancement for Email

RFC 1521 - MIME (Multipurpose Internet Mail Extensions)

W3C Implementation of Base64 in Java

Sun Implementation of Base64 in Java

Sun Implementation of Base64 in Java - Test

Goetz' Implementation of Base64 in JavaScript

Goetz' Implementation of Base64 in JavaScript - Test

Conclusions:

Base64 is a data encoding algorithm that converts any binary data into 64 printable characters.
Base64 was introduced and modified in RFC 1421 and RFC 1521 as the MIME (Multipurpose Internet Mail Extensions) data encoding standard.
Both Base64 and UUEncode encoding algorithms use 64 printable characters.

Exercise: Write a program to compare the performance of Base64 encoding with UUEncode. I think UUEncode will perform better, because the output characters are computed instead looked up through an array.

Table of Contents

About This Book

►Base64 Encoding

Base64 Encoding and Decoding Tools

Base64URL - URL Safe Base64 Encoding

Base32 Encoding

URL Encoding, URI Encoding, or Percent Encoding

UUEncode Encoding

References

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