Discuss this help topic in SecureBlackbox Forum

Verify the timestamp of the signed data

To verify the timestamp of the data signature using X.509 certificates and PKCS#7 format you need to use Timestamps[] and TimestampCount properties of TElMessageVerifier component.

Timestamps property returns the object of type TElClientTSPInfo, which contains all information about the timestamp. If the timestamp is not valid, it's Time property is equal to 0 in VCL edition or to 30 December 1899 in .NET edition (to check, use Time.ToOADate() = 0 expression).

The procedure of using TElClientTSPInfo is described in details in the corresponding how-to article.

How To articles about PKCS7 signing and encryption

Discuss this help topic in SecureBlackbox Forum