The ST31 contact series offers secure microcontrollers specifically designed for contact smartcard applications. They are based on the latest ARM SC000 32-bit CPU core and offer a wide range of memory sizes and cryptographic algorithms.

As well as DES and AES cryptographic coprocessors, the ST31 family comes with a Nescrypt public key coprocessor including RSA and ECC algorithms and the optional Neslib certified crypto library.

Products address security certifications according to EMVCo, ZKA, PboC and Common Criteria EAL5+/EAL6+ levels.