Interface TSAClient

  • All Known Implementing Classes:
    TSAClientBouncyCastle

    public interface TSAClient
    Time Stamp Authority client (caller) interface.

    Interface used by the PdfPKCS7 digital signature builder to call Time Stamp Authority providing RFC 3161 compliant time stamp token.

    Since:
    2.1.6
    Author:
    Martin Brunecky, 07/17/2007
    • Method Detail

      • getTokenSizeEstimate

        int getTokenSizeEstimate()
        Get the time stamp token size estimate. Implementation must return value large enough to accomodate the entire token returned by getTimeStampToken() _prior_ to actual getTimeStampToken() call.
        Returns:
        an estimate of the token size
      • getTimeStampToken

        byte[] getTimeStampToken​(byte[] imprint)
                          throws Exception
        Get RFC 3161 timeStampToken. Method may return null indicating that timestamp should be skipped.
        Parameters:
        imprint - byte[] - data imprint to be time-stamped
        Returns:
        byte[] - encoded, TSA signed data of the timeStampToken
        Throws:
        Exception - - TSA request failed