Method StampFirstSignerInfo
StampFirstSignerInfo(SignedCms, HashAlgorithmName, String)
Adds a trusted timestamp to the given SignedData structure through a TSA service.
Declaration
public static SignedCms StampFirstSignerInfo(SignedCms cmsSignedData, HashAlgorithmName digestAlgo, string TSA_address = null)Parameters
| Type | Name | Description |
|---|---|---|
| System.Security.Cryptography.Pkcs.SignedCms | cmsSignedData | The CMS-Signedata . |
| System.Security.Cryptography.HashAlgorithmName | digestAlgo | The digest algorithm. |
| System.String | TSA_address | The address of the TSA. |
Returns
| Type | Description |
|---|---|
| System.Security.Cryptography.Pkcs.SignedCms | Null in case of error or the signed data having the trusted timestamp. |