The 128-bit Blockcipher


CLEFIA is standardized in ISO/IEC 29192-2, Lightweight cryptography, Part 2: Block ciphers.

ISO/IEC 29192-2, Information technology — Security techniques — Lightweight cryptography — Part 2: Block ciphers

Lightweight cryptography is cryptographic technology suitable for constraint devices. This technology attracts a great deal of attention in recent years because it enables implementation of cryptographic functionality with low cost and/or low power consumption in many applications including smart cards, RFID tags, sensor networks, medical and healthcare devices, etc.

News Release: Sony's ‘CLEFIA’ Encryption Technology Adopted as an International StandardOpen in new window


  • ISO (International Organization for Standardization)
  • IEC (International Electrotechnical Commission)
  • ISO/IEC JTC 1/SC 27
    ISO/IEC JTC 1 is Joint Technical Committee 1 of ISO and IEC. It deals with all matters of information technology. There are subcommittees (SC) dealing with a particular field. SC 27 deals with IT Security techniques.