Chilkat Examples

ChilkatHOMEAndroid™Classic ASPCC++C#Mono C#.NET Core C#C# UWP/WinRTDataFlexDelphi ActiveXDelphi DLLVisual FoxProJavaLianjaMFCObjective-CPerlPHP ActiveXPHP ExtensionPowerBuilderPowerShellPureBasicCkPythonChilkat2-PythonRubySQL ServerSwift 2Swift 3,4,5...TclUnicode CUnicode C++Visual Basic 6.0VB.NETVB.NET UWP/WinRTVBScriptXojo PluginNode.jsExcelGo

Excel Examples

Web API Categories

ASN.1
Amazon EC2
Amazon Glacier
Amazon S3
Amazon S3 (new)
Amazon SES
Amazon SNS
Amazon SQS
Azure Cloud Storage
Azure Service Bus
Azure Table Service
Base64
Bounced Email
Box
CAdES
CSR
CSV
Certificates
Compression
DKIM / DomainKey
DSA
Diffie-Hellman
Digital Signatures
Dropbox
Dynamics CRM
EBICS
ECC
Ed25519
Email Object
Encryption
FTP
FileAccess
Firebase
GMail REST API
GMail SMTP/IMAP/POP
Geolocation
Google APIs
Google Calendar
Google Cloud SQL
Google Cloud Storage
Google Drive
Google Photos
Google Sheets
Google Tasks
Gzip
HTML-to-XML/Text
HTTP

HTTP Misc
IMAP
JSON
JSON Web Encryption (JWE)
JSON Web Signatures (JWS)
JSON Web Token (JWT)
Java KeyStore (JKS)
MHT / HTML Email
MIME
MS Storage Providers
Microsoft Graph
NTLM
OAuth1
OAuth2
OIDC
Office365
OneDrive
OpenSSL
Outlook
Outlook Calendar
Outlook Contact
PDF Signatures
PEM
PFX/P12
PKCS11
POP3
PRNG
REST
REST Misc
RSA
SCP
SCard
SFTP
SMTP
SSH
SSH Key
SSH Tunnel
ScMinidriver
SharePoint
Socket/SSL/TLS
Spider
Stream
Tar Archive
Upload
WebSocket
XAdES
XML
XML Digital Signatures
XMP
Zip
curl

 

 

 

(Excel) Combine Timestamp Reply and Content File into a TimeStampData

Demonstrates how to combine a timestamp reply (RFC 3161) with a data file (any type of file) to create a TimeStampData structure (RFC 5544).

Download Excel Class Modules

Chilkat Excel Class Modules

' This example requires the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.

' Also see this example:
' Send a TimeStamp Request to a TimeStamp Authority and get the Response

' Load a timestamp reply file
Dim bdTsr As Chilkat.BinData
Set bdTsr = Chilkat.NewBinData

success = bdTsr.LoadFile("qa_data/tsd/sample.tsr")
If (success <> True) Then
    Debug.Print "Failed to load timestamp reply file."
    Exit Sub
End If

' Load the tsr into an ASN.1 object.
Dim asnTsr As Chilkat.Asn
Set asnTsr = Chilkat.NewAsn
success = asnTsr.LoadEncoded(bdTsr.GetEncoded("base64"),"base64")
If (success <> True) Then
    Debug.Print asnTsr.LastErrorText
    Exit Sub
End If

' Get the timestamp reply as XML.
Dim xmlTsr As Chilkat.Xml
Set xmlTsr = Chilkat.NewXml
success = xmlTsr.LoadXml(asnTsr.AsnToXml())

' The timestamp reply XML begins like this:
' We'll want to remove the 1st "sequence" subtree.

'     <?xml version="1.0" encoding="utf-8"?>
'     <sequence>
'         <sequence>       <---- Remove this sub-tree.
'             <int>00</int>
'             <sequence>
'                 <utf8>Operation Okay</utf8>
'             </sequence>
'         </sequence>
'         <sequence>   
'             <oid>1.2.840.113549.1.7.2</oid>
'             <contextSpecific tag="0" constructed="1">
'             ...

' Remove the 1st sub-tree..
xmlTsr.RemoveChildByIndex 0

' In this example, the data file we're combining with the timestamp into a timestampData is a .p7m.
' However, it can be any type of file (text or binary), it doesn't matter..
Dim bdContent As Chilkat.BinData
Set bdContent = Chilkat.NewBinData
success = bdContent.LoadFile("qa_data/tsd/sample.p7m")
If (success <> True) Then
    Debug.Print "Failed to load content file."
    Exit Sub
End If

' Begin building the TimeStampData.  
' We'll build as XML and then convert to ASN.1
Dim xml As Chilkat.Xml
Set xml = Chilkat.NewXml
xml.Tag = "sequence"
xml.UpdateChildContent "oid","1.2.840.113549.1.9.16.1.31"
success = xml.UpdateAttrAt("contextSpecific",True,"tag","0")
success = xml.UpdateAttrAt("contextSpecific",True,"constructed","1")
xml.UpdateChildContent "contextSpecific|sequence|int","01"
xml.UpdateChildContent "contextSpecific|sequence|octets",bdContent.GetEncoded("base64")
success = xml.UpdateAttrAt("contextSpecific|sequence|contextSpecific",True,"tag","0")
success = xml.UpdateAttrAt("contextSpecific|sequence|contextSpecific",True,"constructed","1")


Set xContext = xml.GetChildWithTag("contextSpecific|sequence|contextSpecific")
success = xContext.AddChildTree(xmlTsr)

' Convert the XML to ASN.1
Dim tsd As Chilkat.Asn
Set tsd = Chilkat.NewAsn
success = tsd.LoadAsnXml(xml.GetXml())

' Write the timestamped data to a file.
success = tsd.WriteBinaryDer("qa_output/sample.tsd")

' Alternatively, get the tsd ASN.1 as base64..

tsdBase64 = tsd.GetEncodedDer("base64_mime")
Debug.Print tsdBase64

 

© 2000-2022 Chilkat Software, Inc. All Rights Reserved.