base64-encoding

What is base64 encoding

tags: learning programming

content

• a way to transform data
• 64 characters are used (a-z, A-Z, 0-9, +, /)

Process:

• the data is first transformed to binary
• then broken down into 6-bit groups
• then mapped to one of the 64 characters, based on this table

Example:

• string MAN to binary:

M -> 01001101
a -> 01100001
n -> 01101110

• grouped into 6 bit groups: 010011 010110 000101 101110
• mapped back to characters: TWFu

up

• JWT

down

reference