python3-pyhanko-certvalidator 0.26.3-2 (amd64 binary) in ubuntu noble

 A Python library that offers functionality for validating X.509 digital
 certificates, which are widely used in security systems such
 as TLS/SSL, email encryption, PDF signatures, and more.
 .
 The pyhanko-certvalidator library performs the following main tasks:
  - Certificate Validation: The library checks the validity of X.509
    digital certificates. This includes checking the certificate signature,
    expiration date, issuing authority (CA), certificate revocation, and
    other important properties.
  - Chain of Trust: It helps to build and validate the certificate chain,
    that is, the sequence of certificates that links a specific certificate
    to a trusted certification authority (root CA).
  - CRL (Certificate Revocation Lists) Check: The library checks whether a
    certificate has been revoked by querying Certificate Revocation Lists
    (CRLs) published by certification authorities.
  - Online Certificate Status Protocol (OCSP) Check: In addition to CRL
    checking, certvalidator can check the status of a certificate through
    the Online Certificate Status Protocol (OCSP) to determine whether the
    certificate is still valid.
  - Custom Expiration Policy: You can configure and apply custom validity
    policies to meet specific certificate validation requirements.
  - Extensibility: The library is designed to be extensible and customizable.
 .
 This is a fork of the python3-certvalidator package.