Raw Base64 bytes into base64 string

Question

I've seen solutions for converting NSData to a string with encoding, for using description to get a hexadecimal representation of the string as PLIST values and for converting NSData to a double value.

How do I convert the raw NSData bytes into a base64 string, ignoring encoding?

EDIT: Does using base64EncodedStringWithOptions: with 0 for options give me the raw data interpreted as string?