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

VB.NET UWP/WinRT 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

 

 

 

(VB.NET UWP/WinRT) Create XML Signature with Certificate's Private Key

Demonstrates how to create an XML digital signature using a certificate's RSA private key. This example loads the certificate from a PFX, and uses the cert's associated private key to sign. The public key is embedded in the XML signature as a ds:KeyInfo / ds:KeyValue / dsRSAKeyValue element.

This example requires Chilkat v9.5.0.71 or greater.

Chilkat Universal Windows Platform (UWP) / WinRT Downloads

Chilkat for the Universal Windows Platform (UWP)

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

' The SOAP XML to be signed in this example contains the following:

' <?xml version="1.0" encoding="UTF-8" standalone="no" ?>
' <SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/">
'     <SOAP-ENV:Header>
'         <wsse:Security xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd" SOAP-ENV:mustUnderstand="1"></wsse:Security>
'     </SOAP-ENV:Header>
'     <SOAP-ENV:Body xmlns:SOAP-SEC="http://schemas.xmlsoap.org/soap/security/2000-12" SOAP-SEC:id="Body">
'         <z:FooBar xmlns:z="http://example.com" />
'     </SOAP-ENV:Body>
' </SOAP-ENV:Envelope>
' 

' The above XML is available at https://www.chilkatsoft.com/exampleData/soapToSign.xml
' Fetch the XML and then sign it..

Dim url As String = "https://www.chilkatsoft.com/exampleData/soapToSign.xml"
Dim http As New Chilkat.Http
Dim sbSoapXml As New Chilkat.StringBuilder
Dim success As Boolean = Await http.QuickGetSbAsync(url,sbSoapXml)
If (success <> True) Then
    Debug.WriteLine(http.LastErrorText)
    Exit Sub
End If


' Load a PFX file containing the certificate + private key.
Dim cert As New Chilkat.Cert
success = cert.LoadPfxFile("/somedir/myPfx.pfx","pfx_password")
If (success <> True) Then
    Debug.WriteLine(cert.LastErrorText)
    Exit Sub
End If


' Get the RSA private key for signing...
Dim rsaKey As Chilkat.PrivateKey = cert.ExportPrivateKey()
If (cert.LastMethodSuccess <> True) Then
    Debug.WriteLine(cert.LastErrorText)
    Exit Sub
End If


' To create the XML digital signature (i.e. embed the signature within
' the SOAP XML), we specify what is desired, and then call the method to 
' create the XML signature.
' 
' For example, the application must provide the following:
'     - Where to put the signature.
'     - What to sign.
'     - The algorithms to be used.
'     - The key to be used for signing.
' 

Dim xmlSigGen As New Chilkat.XmlDSigGen

' In this example, we're going to put the signature within the wsse:Security element.
' To specify the location, set the SigLocation property to the XML path to this element,
' using vertical bar characters to separate tags.
xmlSigGen.SigLocation = "SOAP-ENV:Envelope|SOAP-ENV:Header|wsse:Security"

' An XML digital signature contains one or more references.  These are references to the parts
' of the XML document to be signed (a same document reference), or can be external references.
' This example will add a single same-document reference.  We'll add a reference to the XML fragment
' at SOAP-ENV:Body, which is indicated by providing the value of the "ID" attribute (where "ID" is case
' insensitive).  For each same-document reference, we must also indicate the hash algorithm and XML canonicalization
' algorithm to be used.  For this example we'll choose SHA-256 and Exclusive XML Canonicalization.
xmlSigGen.AddSameDocRef("Body","sha256","EXCL_C14N","","")

' Let's provide the RSA key to be used for signing:
xmlSigGen.SetPrivateKey(rsaKey)


' We're leaving the following properties at their default values:
' 
'    - SigNamespacePrefix (default is "ds")
'    - SigningAlg (for RSA keys. The default is PKCS1-v1_5, can be changed to RSASSA-PSS.)
'    - SignedInfoCanonAlg  (default is EXCL_C14N)
'    - SignedInfoDigestMethod (default is sha256)
'    - KeyInfoType (default is "KeyValue", where the RSA public key is included in the Signature)

' Note: Each Reference has it's own specified algorithms for XML canonicalization and hashing,
' and the actual signature part (the SignedInfo) has it's own algorithms for the same.
' They may or may not be the same.  In this example, we use Exclusive XML Canonicalization and SHA-256 throughout.

' Finally, we're going to set one property that's optional, but commonly used.
' It's the SignedInfoPrefixList.  In this case, we're using Exclusive Canonicalization, and the signature
' will be placed in a location within the XML document where namespace prefixes are used in the ancestors.
' Specifically, the "wsse" and "SOAP-ENV" namespace prefixes are used.
xmlSigGen.SignedInfoPrefixList = "wsse SOAP-ENV"


' OK, everything's specified, so let's create the XML digital signature:
' This in-place signs the XML.  If successful, sbSoapXml will contain the 
' XML with the digital signature at the specified location.
success = xmlSigGen.CreateXmlDSigSb(sbSoapXml)
If (success <> True) Then
    Debug.WriteLine(xmlSigGen.LastErrorText)
    Exit Sub
End If


' Examine the signed SOAP XML:
Debug.WriteLine(sbSoapXml.GetAsString())


' This is the signed SOAP XML.
' Chilkat emits the Signature in compact form on a single line.  Whitespace in XML signatures
' matters.  Chilkat's opinion is that writing the Signature without whitespace minimizes the chance
' for problems with whatever software might be verifying the signature.

' <?xml version="1.0" encoding="UTF-8" standalone="no" ?>
' <SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/">
'     <SOAP-ENV:Header>
'         <wsse:Security xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd" SOAP-ENV:mustUnderstand="1"><ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#"><ds:SignedInfo><ds:CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"><InclusiveNamespaces xmlns="http://www.w3.org/2001/10/xml-exc-c14n#" PrefixList="wsse SOAP-ENV"/></ds:CanonicalizationMethod><ds:SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256"/><ds:Reference URI="#Body"><ds:Transforms><ds:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/></ds:Transforms><ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/><ds:DigestValue>OwgHPZNfDkXnZsjpfzXqAcT3RV3HzmTsEy2bP44FJ0M=</ds:DigestValue></ds:Reference></ds:SignedInfo><ds:SignatureValue>C+7FWngUpJ33Q1yq8uuscjCyPN2IO4cJhpMv03Jrrht1V+4gvJQLIBk6HHjo1uPQyfYj6zji3pg+fOyGUptp17CsRvjCzSpP35vB2lEzHeS8dcY8XfrEtTP/0FNn75LmhhkOPy0wjWkgDVbgzhXpEk9az8r8fQVTM3vrcmXT+WdMWJXKBRFt6PLAhsFt0scOFTWAkLGyCwygzimDKX2nT63TOit9BigtIx7fPRuMkbybMKCGGABq2DiEbvrPOiN3SUYpyMNR9KehRAGN+OWnESaDC6DhOvbKR88XHkM+GeaRe9PWdrRHrwGfp3qgolKjR/wFRSa1YGSBKAhDJFBcdg==</ds:SignatureValue><ds:KeyInfo><ds:KeyValue><ds:RSAKeyValue><ds:Modulus>sXeRhM55P13FbpNcXAMR3olbw2Wa6keZIHu5YTZYUBTlYWId+pNiwUz3zFIEo+0IfYR0H27ybIycQO+1IIzJofUFNMAL3tZps2OKPlsjuCPls6kXpXhv/gvhux8LrCtp4PcKWqJ6QVOZKChc7WAx40qFWzHi57ueqRTv3x0kESqGg/VjsqyTEvb55psJO2RsfhLT7+YVh3hImRM3RDaJdkTkPuOxeFyT6N7VXD09329sLuS3QkUbE9zEKDnz9X3d8dEQdJhSI9ba5fxl8R7fu8pB67ElfzFml96X1jLFtzy1pzOT5Fc4ROcaqlYckVzdBq9sxezm6MYmDBjNAcibRw==</ds:Modulus><ds:Exponent>AQAB</ds:Exponent></ds:RSAKeyValue></ds:KeyValue></ds:KeyInfo></ds:Signature></wsse:Security>
'     </SOAP-ENV:Header>
'     <SOAP-ENV:Body xmlns:SOAP-SEC="http://schemas.xmlsoap.org/soap/security/2000-12" SOAP-SEC:id="Body">
'         <z:FooBar xmlns:z="http://example.com" />
'     </SOAP-ENV:Body>
' </SOAP-ENV:Envelope>


' Here's the signature part formatted for easier reading.
' (Adding whitespace to the SignedInfo breaks the signature, so you wouldn't want to do this..)

'     <ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
'         <ds:SignedInfo>
'             <ds:CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#">
'                 <InclusiveNamespaces xmlns="http://www.w3.org/2001/10/xml-exc-c14n#" PrefixList="wsse SOAP-ENV" />
'             </ds:CanonicalizationMethod>
'             <ds:SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256" />
'             <ds:Reference URI="#Body">
'                 <ds:Transforms>
'                     <ds:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#" />
'                 </ds:Transforms>
'                 <ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256" />
'                 <ds:DigestValue>OwgHPZNfDkXnZsjpfzXqAcT3RV3HzmTsEy2bP44FJ0M=</ds:DigestValue>
'             </ds:Reference>
'         </ds:SignedInfo>
'         <ds:SignatureValue>C+7FWngUp....BKAhDJFBcdg==</ds:SignatureValue>
'         <ds:KeyInfo>
'             <ds:KeyValue>
'                 <ds:RSAKeyValue>
'                     <ds:Modulus>sXeRhM55P13FbpNcXAMR....MYmDBjNAcibRw==</ds:Modulus>
'                     <ds:Exponent>AQAB</ds:Exponent>
'                 </ds:RSAKeyValue>
'             </ds:KeyValue>
'         </ds:KeyInfo>
'     </ds:Signature>

 

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