SecureBlackbox 2020 Python Edition

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on_timestamp_found Event

Signifies the start of a timestamp validation routine.

Syntax

class OfficeVerifierTimestampFoundEventParams(object):
  @property
  def issuer_rdn() -> str: ...
  @property
  def serial_number() -> bytes: ...
  @property
  def subject_key_id() -> bytes: ...
  @property
  def cert_found() -> bool: ...
  @property
  def validate_timestamp() -> bool: ...
  @validate_timestamp.setter
  def validate_timestamp(value) -> None: ...
  @property
  def validate_chain() -> bool: ...
  @validate_chain.setter
  def validate_chain(value) -> None: ...

# In class OfficeVerifier:
@property
def on_timestamp_found() -> Callable[[OfficeVerifierTimestampFoundEventParams], None]: ...
@on_timestamp_found.setter
def on_timestamp_found(event_hook: Callable[[OfficeVerifierTimestampFoundEventParams], None]) -> None: ...

Remarks

This event fires for every timestamp identified during signature processing, and reports the details about the signer's certificate via its IssuerRDN, SerialNumber, and SubjectKeyID parameters.

The CertFound is set to True if the class has found the needed certificate in one of the known locations, and to False otherwise, in which case you must provide it manually via KnownCertificates property.

Just like with signature validation, timestamp validation consists of two independent stages: cryptographic signature validation and chain validation. Separate validation results are reported for each, with signature_validation_result and chain_validation_result properties respectively.

Use the ValidateSignature and ValidateChain parameters to tell the verifier which stages to include in the validation.

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SecureBlackbox 2020 Python Edition - Version 20.0 [Build 8154]