Documentation

Transform a number of bytes pointed by.src in the base64 binary representation in dst

destination memory need to be of correct size, otherwise it will lead to really bad things.

Get the length needed for the destination buffer for a base64 decoding.

if the length is not a multiple of 4, Nothing is returned

convert from base64 in src to binary in dst, using the number of bytes specified

the user should use unBase64Length to compute the correct length, or check that the length specification is proper. no check is done here.