IS 19156 : 2025 Electronic Signatures and Infrastructures (ESI) - Cryptographic Suites
1 SCOPE
This standard specifies cryptographic suites used for the creation and validation of digital signatures and electronic time stamps and related certificates. The standard builds on the agreed cryptographic mechanisms from SOG-IS. It may be used also for electronic registered delivery services in the future.
The standard focuses on interoperability issues. It instead provides guidance on the selection of concrete cryptographic suites that use agreed mechanisms. The use of SOG-IS agreed mechanisms is meant to help ensure a high level of security in the recommended cryptographic suites, while the focus on specific suites of mechanisms is meant to increase interoperability and simplify design choices.
There is no normative requirement on selection among the alternatives for cryptographic suites given here but for all of them normative requirements apply to ensure security and interoperability.
The standard also provides guidance on hash functions, digital signature schemes and digital signature suites to be used with the data structures used in the context of digital signatures and seals. For each data structure, the set of algorithms to be used is specified.
2 REFERENCES
The standards listed in Annex A contain provisions, which through reference in this text, constitute provisions of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent edition of these standards.