A Hardware Implementation of CURUPIRA Block Cipher for Wireless Sensors

An architecture and VLSI implementation of a new block cipher called Curupira is presented in this paper. This cipher is suitable for wireless sensors and RFID applications. Our 0.13 mum implementation requires resources of 9450 gate equivalences and is capable to encrypt a plaintext in 10 clock cycles. The cipher achieves a maximum throughput up to 2361 Mbps at 246 MHz for encrypting/decrypting. When clocked at 100 KHz a throughput of up to 960 Kbps is achieved and an average power of 0.04 mW is drawn.