Provide examples and tests for other encryption types

[generalpiston]

See openssl list-cipher-algorithms for a complete list. Here's the abbreviated shortlist:

• aes
• des
• bf

[rubiin]

is the iv optional? @generalpiston

[generalpiston]

@rubiin I believe the IV is not required. IV length is I believe.

[rubiin]

@generalpiston also i cannot decode the encoded data in python with the same key why