Date Added: Jan 2013
Dual key triple encryption text based message using cryptography and Steganography is a modular encryption and decryption method for any type of file. It combines layer 1 and layer 2 encryption techniques with standard encryption like AES as layer 3 encryption. Dual symmetric key is required to encrypt or decrypt file, so it can be used by two different persons to encrypt or decrypt certain file. Layer 1 and Layer 2 can use independently to achieve higher security level and fast encrypt or decrypt processing time. The authors propose character mapping and window addition for level 1 encryption. This technique has better processing time more than 21 times faster than fair character mapping.