| Subject: | passphrase is a hexstring, not an ascii string |
The passphrase is described as "The passphrase is an ASCII character
string of up to 48 characters"
This is incorrect.
The passphrase is a string of hex up to 48 characters long (creating 192
bits of information).
The passphrase is padded with spaces (i.e. hex 0) to make it up to that
length.
A (bad!) example passphrase would be
"0123456789abcdef0123456789abcdef0123456789abcdef"
This can be most easily fixed by changing the documentation.