This feature is new in the Solaris Express 1/04 release.
The digest, mac, and encrypt commands now include an option to list the algorithms that are available for each command. For the mac and encrypt commands, the output includes the key lengths that each algorithm accepts. Also, the -I <IV-file> option has been removed from the encrypt and decrypt commands.
For further information, see Chapter 14, “Solaris Cryptographic Framework (Tasks)” and “Protecting Files With the Solaris Cryptographic Framework” in the System Administration Guide: Security Services.