 He received his PhD in 1995, and became a lecturer in the same year.Anderson's research interests are in security, cryptology, dependability and technology policy.In cryptography, he designed with Eli Biham the BEAR, LION and Tiger cryptographic primitives, and co-wrote with Biham and Lars Knudsen the block cipher Serpent, one of the finalists in the Advanced Encryption Standard (AES) competition.