The validation of an RFC 3161 time-stamp token: its signature, its message imprint, the time-stamping unit's signing-certificate attribute, extended key usage and certificate path (checked, with its revocation, at the time validation runs), and the time it asserts.
public sealed class PdfTimestampValidation
RFC 3161 §2.3 (the unit's certificate), §2.4.1 and RFC 5816 (the ESS signing-certificate attribute), §2.4.2 (TSTInfo) and Appendix A (the signature time-stamp attribute); ISO 32000-2 §12.8.3.4.5 c) and §12.8.3.4.8 (the unit's path and revocation at the current time; the rules for a revoked unit).
kind:method, kind:property, kind:ctor. Press Esc to clear.CertificatePathGets the unit's certificate path that was built, unit first; empty when there is no unit certificate.DigestAlgorithmGets the digest algorithm of the token's message imprint, or null when it was not read.PolicyGets the policy the token was issued under, as a dotted object identifier, or null when unreadable.ProblemsGets the reasons the token is not valid; empty when it is.RevocationsGets the revocation status of each certificate of CertificatePath but the trust anchor, at the current time.SignerCertificateGets the time-stamping unit's certificate, or null when the token does not carry it.StatusGets the outcome: Valid when the token checks out and its unit's chain reaches a trust anchor; only then is Time used as the signature's validation time.TimeGets the time the token asserts (genTime); when it could not be read.