Which of the following is similar to Blowfish but works on 128-bit blocks? Cryptography Basics Which of the following is similar to Blowfish but works on 128-bit blocks? a. Twofish b. IDEA c. CCITT d. AES Answer: A Twofish was created by the same creator of Blowfish. It performs a similar function on 128-bit blocks instead of 64-bit blocks. Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+