Base64 is an encoding that encodes three bytes into four characters, thereby increasing the size by about 33%. The alphabet used for encoding is very resistant to mangling during transit.
The following functions are defined by this library:
base64-encode-region ¶base64 encode the selected region. Return the length of the encoded text. Optional third argument no-line-break means do not break long lines into shorter lines.
base64-encode-string ¶base64 encode a string and return the result.
base64-decode-region ¶base64 decode the selected region. Return the length of the decoded
text. If the region can’t be decoded, return nil and don’t
modify the buffer.
base64-decode-string ¶base64 decode a string and return the result. If the string can’t be
decoded, nil is returned.