Block Key Encryption Size Size Type Author Bits Bits Time** 3DES Diffie-Hellman 64 168 4:05 Blowfish Schneier 64 256 0:55 DES IBM-NSA 64 56 1:42 IDEA Lai-Massey 64 128 1:07 Misty1 Matsui 64 128 2: ...

To understand what this proposal is, and why it is important, we need to dig a bit deeper into what a block cipher is, and the history of the AES algorithm. A block cipher is a mechanism to ...