Steve

http://download-west.oracle.com/otndoc/oracle9i/901_doc/appdev.901/a88876/adgsec04.htm

basically pl-sql stored procedure routines, ie:

dbms_obfuscation_toolkit.DESDecrypt(input_string => encrypted_string,

key => raw_key, decrypted_string => decrypted_string);

for example.

Includes:

a) Data Encryption Standard (DES) algorithm

b) encrypt and decrypt using 2-key and 3-key DES

c) require keylengths of 128 and 192 bits, respectively

d) DES algorithm itself has an effective key length of 56-bits