Modified Base64

Modified Base64 is a data encoding scheme whereby characters above 0x80 (hexadecimal notation) are encoded using printable ASCII characters. It is a variant of Base64, and is primarily used for encoding Unicode text into UTF-7 format for use in MIME messages.

Description

Modified Base64 is standardized as , A Mail-Safe Transformation Format of Unicode.

The main difference it has versus Base64 is that it does not use the "=" symbol for padding, as that character tends to require a fair amount of escaping. Instead, it pads the octet bits with 0s.

See Base64 for a thorough discussion of the basics of this encoding scheme.

Examples

See UTF-7 for examples.