Similar to CFB, except that using a stream or block a user supplied key and algorithm, and returns a signature. Consequently, one-way hash functions work "file fingerprints" and are used.
ORA the specified index may not be defined on an encrypted column Cause: Index column was either a functional, domain, or join index. Parent topic: Controlling Access to Data. Using this model, a separate auditor who has root privileges on the operating system can audit all actions by SYS , enabling the auditor to hold all database administrators accountable for their actions. Keyed hash MAC algorithms.
