format preserving encryption

June 20, 2014

SECURITY

Open Sourcing FNR an Experimental Block Cipher

1 min read

Traditional block ciphers work on fixed blocks of data—as an example, AES is well-defined for 128/192/256 bits. But one of the issues is the need for padding—so if you need to encrypt small amounts of data you may end with a huge difference in input vs. output size. As an example, using AES/128 on ECB […]