Given the unsafe nature of the crypto in this project and the fact that it does not support ZFS ACLs or attributes I see no point in integrating this into OpenSolaris/Solaris. It would in my opinion be more harmful to have it than not have it. It also provides a false sense of security due to the weak way that the passphrases are turned into encryption keys (ie there is no salting so no protection against brute force key attack).
For personal backups it would be safer to use tar and if encryption is needed then the encrypt(1) and mac(1) commands can be used for to provide safer (than what this case provides) encrypted versions of the tar files using a documented and committed format. Instead of this project maybe we should build a simple personal backup tool around the clis we already have in OpenSolaris. I do not approve of this case being integrated. -- Darren J Moffat