From RFC 4880 [1]
CAST5 (128 bit key, as per [RFC2144])
From RFC 2144 [2]:
The CAST-128 encryption algorithm has been designed to allow a key
size that can vary from 40 bits to 128 bits, in 8-bit increments
(that is, the allowable key sizes are 40, 48, 56, 64, ..., 112, 120,
and 128 bits.
[1]: http://tools.ietf.org/search/rfc4880#section-9.2
[2]: http://tools.ietf.org/search/rfc2144#section-2.5
'aes with 128-bit key': 128,
'aes with 192-bit key': 192,
'aes with 256-bit key': 256,
+ 'cast5': 128,
}
_compression_algorithms = {