Chilkat Examples

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

Lianja Examples

ASN.1
Amazon S3
Amazon S3 (new)
Amazon SES
Amazon SNS
Amazon SQS
Async
Azure Cloud Storage
Azure Service Bus
Base64
Bounced Email
Box
CSR
CSV
Certificates
Compression
DKIM / DomainKey
DSA
Diffie-Hellman
Digital Signatures
Dropbox
Dynamics CRM
ECC
Email Object
Encryption
FTP
Facebook
FileAccess
Firebase
GMail REST API
GeoOp
Google APIs
Google Calendar
Google Cloud Storage
Google Drive
Google Sheets
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)
Jira
MHT / HTML Email
MIME
Microsoft Graph
NTLM
OAuth1
OAuth2
OneDrive
OpenSSL
Outlook
PEM
PFX/P12
POP3
PRNG
PayPal
Peoplevox
QuickBooks
REST
REST Misc
RSA Encryption
SCP
SFTP
SMTP
SSH
SSH Key
SSH Tunnel
SharePoint
Shopify
Socket/SSL/TLS
Spider
Stream
Stripe
SugarCRM
Tar Archive
Twitter
Upload
VoiceBase
Walmart
WebSocket
XAdES
XML
XML Digital Signatures
XMP
Xero
Zip
curl
eBay

 

 

 

(Lianja) Get Web Server's SPKI Fingerprint

Gets the SPKI fingerprint of a web server's certificate.

What is Pinning?

Pinning is the process of associating a host with their expected X509 certificate or public key. Once a certificate or public key is known or seen for a host, the certificate or public key is associated or 'pinned' to the host. If more than one certificate or public key is acceptable, then the program holds a pinset. In this case, the advertised identity must match one of the elements in the pinset. A host or service's certificate or public key can be added to an application at development time, or it can be added upon first encountering the certificate or public key. The former - adding at development time - is preferred since preloading the certificate or public key out of band usually means the attacker cannot taint the pin. ..

Beginning in Chilkat v9.5.0.55, TLS public key pinning is implemented by (1) making it possible to easily get the SPKI fingerprint of a certificate, and (2) adding the TlsPinSet property to classes that can establish TLS connections.

Chilkat Lianja Extension Download

Chilkat Lianja Extension

loChilkatGlob = createobject("CkGlobal")
llSuccess = loChilkatGlob.UnlockBundle("Anything for 30-day trial.")
if (llSuccess <> .T.) then
    ? loChilkatGlob.LastErrorText
    release loChilkatGlob
    return
endif

loHttp = createobject("CkHttp")

//  We're getting the SSL/TLS certificate, so make sure to connect to the SSL/TLS port (443).
loSslCert = loHttp.GetServerSslCert("www.ssllabs.com",443)
if (not is_object(loSslCert)) then
    ? loHttp.LastErrorText
    release loChilkatGlob
    release loHttp
    return
endif

//  The GetSpkiFingerprint method returns the SPKI Fingerprint suitable for use in pinning.
//   (See RFC 7469.)  An SPKI Fingerprint is defined as the output of a known cryptographic hash
//   algorithm whose input is the DER-encoded ASN.1 representation of  the Subject Public Key Info
//  (SPKI) of an X.509 certificate.  The first argument specifies the hash algorithm and may be
//  "sha256", "sha384", "sha512", "sha1", "md2", "md5", "haval", "ripemd128",
//  "ripemd160","ripemd256", or "ripemd320".
//  The second argument specifies the encoding, and may be "base64", "hex",
//  or any of the encoding modes specified at http://www.cknotes.com/chilkat-binary-encoding-list/
//  DN = "Distinguished Name"
? "SPKI Fingerprint: " + loSslCert.GetSpkiFingerprint("sha256","base64")

release loSslCert


release loChilkatGlob
release loHttp

 

© 2000-2019 Chilkat Software, Inc. All Rights Reserved.