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Circular 22: Technical requirements for digital signature checking software in Vietnam

17:07, 10/09/2020

Recently, the Ministry of Information and Communications of Vietnam has issued Circular No. 22/2020/TT-BTTTT on technical requirements applicable to digital signature software and digital signature checking software.

According to Circular No. 22/2020/TT-BTTTT of the Ministry of Information and Communications of Vietnam, regarding the digital signature checking software, requirements for checking of validity of digital signatures affixed to data messages are as follows:

- Digital signatures affixed to data messages are verified according to the principle: a digital signature is generated from a private key corresponding to the public key on the digital certificate;

- Digital certificates of persons attaching digital signatures to data messages are checked via the trusted path on such digital certificates and also checked by the national certification authority.

- Information about persons attaching digital signatures to data messages are checked and verified focusing on the following: Validity period of the digital certificates; Status of the digital certificates through the Certificate Revocation List (CRL) published at the time of attaching the digital signature or through the Online Certificate Status Protocol (OCSP) in the case where the certification authority provides OCSP services; Cryptographic algorithms used on the digital certificates; Purpose and scope of the digital certificates.

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View more requirements at: Circular No. 22/2020/TT-BTTTT of the Ministry of Information and Communications of Vietnam, effective from November 01, 2020.

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