Circular No. 22/2020/TT-BTTTT dated September 7th, 2020 of the Ministry of Information and Communications on technical requirements applicable to digital signature software and digital signature checking software
This Circular provides for technical requirements applicable to digital signature software and digital signature checking software. The details are provided in the Appendix attached to this Circular.
Apart from the aforesaid general requirements, digital signature software and digital signature checking software must also meet specific functional requirements, for instance: attaching digital signatures; checking validity of digital certificates; storage and cancellation of information; change of digital signatures of certification authorities; notification of checking whether a digital signature is valid or not, etc.
A digital signature is considered valid if these requirements are met:
+ Information about the signer has been checked and verified;
+ The signer’s digital certificate remains valid at the signature time;
+ Digital signature on the data message matches the private key corresponding to the public key on the digital certificate and integrity of the data message is ensured.
This Circular takes effect from November 1st, 2020.