2.1.1 - bump --version output

Just a small fix of --version output to reflect the current version.

2.1.0 - OpenSSL 1.1.0 compatibility

• Update for OpenSSL 1.1.0
• Remove an option that wasn't implemented

2.0.0 - Optional AES encryption

Partial rewrite, added optional AES encryption of generated values.

1.0.5

Fix of bug with parsing of -t argument in rdrand-gen.