Preface Standards development within the Information Technology sector is harmonized with international standards development. Through the CSA Technical Committee on Information Technology (TCIT), Canadians serve as the SCC Mirror Committee (SMC) on ISO/IEC Joint Technical Committee 1 on Information Technology (ISO/IEC JTC1) for the Standards Council of Canada (SCC), the ISO member body for Canada and sponsor of the Canadian National Committee of the IEC. Also, as a member of the International Telecommunication Union (ITU), Canada participates in the International Telegraph and Telephone Consultative Committee (ITU-T). For brevity, this Standard will be referred to as \"CAN/CSA-ISO/IEC 29167-12\" throughout. At the time of publication, ISO/IEC 29167-12:2015 is available from ISO and IEC in English only. CSA Group will publish the French version when it becomes available from ISO and IEC. Scope This part of ISO/IEC 29167 defines the crypto suite for ECC-DH for the ISO/IEC 18000 air interfaces standards for radio frequency identification (RFID) devices. Its purpose is to provide a common crypto suite with Diffie-Hellmann-based authentication using ECC (elliptic curve cryptography) over binary fields for security for RFID devices that may be referred by ISO committees for air interface standards and application standards. This part of ISO/IEC 29167 specifies a crypto suite for ECC-DH for air interface for RFID systems. The crypto suite is defined in alignment with existing air interfaces. This part of ISO/IEC 29167 defines various authentication methods and methods of use for the cipher. A Tag and an Interrogator may support one, a subset, or all of the specified options, clearly stating what is supported.