Re: A refinement to Radix-64?

If you're going to change the mapping, you might also drop the characters
"O" and "l", add two more, and thus make the character set more usable by
people who want to have public keys printed on business cards and therefore
copied by hand into a computer.

On the other hand, there's an argument for not making any changes.  PEM
appears to be suffering from a time-to-market problem as it is.  At least,
I've heard an occasional impassioned plea for it to have been solid and
implemented already.