1. 〈http://www.atmel.com/products/microcontrollers/avr/megaavr.aspx〉
2. 3rd Generation Partnership Project, Technical Specification Group Services and System Aspects, 3G Security, Specification of the 3GPP confidentiality and integrity algorithms; Document 2: KASUMI Specification, V3.1.1, 2001.
3. Adams, Carlisle. The CAST-128 encryption algorithm, RFC 2144. USA, May; 1997.
4. Adams, Carlisle. The CAST-256 encryption algorithm, RFC 2612. USA, June; 1999.
5. Altera Inc., Quartus II Introduction Using Verilog Designs [online], Available at: ftp://ftp.altera.com/up/pub/Altera_Material/9.1/Tutorials/Verilog/Quartus_II_Introduction.pdf.