||Notes Regarding Standardization
|| IETF (Internet Engineering Task Force)
||ESIGN was certified as the IETF standard signature (Proposed Standard) for XML security URIs (RFC4051).
||IEEE (Institute of Electrical and Electronic Engineers)
||ESIGN was selected as the signature scheme in IEEE P1363a.
|| Law Concerning Electronic Signatures and Certification Services
||ESIGN was certification in the guidelines for accreditation of designated certification services based on Law Concerning Electronic Signatures and Certification Services (expired in 2002).
Currently, NTT does not recommend this specification.
International non-profit organization that establishes the international standard for the ATM network.
| ESIGN was selected in the ATM security specification for the digital signature schemes on ATM networks. Currently, NTT does not recommend this specification.
||ISO/IEC (International Organization for Standardization / International Electrotechnical Commission)
||ESIGN was selected in ISO/IEC14888-3, an ISO/IEC international standard digital signature scheme.
This is the first domestic digital signature scheme to be selected.