[seg_lol]

They should have used base64 encryption.

[HiPhish]

How about ROT13? Ideally applied twice for twice the encryption.

[CrazyStat]

ROT13 is cheap enough that you can afford to apply it many more times. I use one million iterations to store passwords securely.

[foobarchu]

Md5 encryption would be far superior.

[CobrastanJorji]

There are performance concerns with base64. Hardware-assisted null-key encryption offers security that's a non-strict superset of base64 encryption and with superior performance.

[hn_acc1]

null-key encryption is write-once, read-never, so you don't have to cache it.