Chilkat Examples

ChilkatHOME.NET Core C#Android™AutoItCC#C++Chilkat2-PythonCkPythonClassic ASPDataFlexDelphi ActiveXDelphi DLLGoJavaLianjaMono C#Node.jsObjective-CPHP ActiveXPHP ExtensionPerlPowerBuilderPowerShellPureBasicRubySQL ServerSwift 2Swift 3,4,5...TclUnicode CUnicode C++VB.NETVBScriptVisual Basic 6.0Visual FoxProXojo Plugin

Visual Basic 6.0 Examples

Web API Categories

ASN.1
Amazon EC2
Amazon Glacier
Amazon S3
Amazon S3 (new)
Amazon SES
Amazon SNS
Amazon SQS
Async
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

 

 

 

(Visual Basic 6.0) Get an EC Key in Raw Hex Format

Demonstrates how to get the private and public key parts of an EC (ECDSA) key in lowercase hex formmat.

Note: This example requires Chilkat v9.5.0.83 or greater.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

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

' Load an EC key from some format..
Dim privKey As New PrivateKey

' This loads an ECDSA key from an unencrypted PEM file (no password required).
Dim success As Long
success = privKey.LoadAnyFormatFile("qa_data/ecc/openssl_ecc_privKey.pem","")
If (success = 0) Then
    Debug.Print privKey.LastErrorText
    Exit Sub
End If

' The key type should be "ecc" to indicate an EC key.
Debug.Print "key type = " & privKey.KeyType

' What is the size of the private key in bits?
Debug.Print "size in bits = " & privKey.BitLength

' Get the private and public EC key parts in raw hex format:
Dim sbPubKeyHex As New ChilkatStringBuilder
Dim privKeyHex As String
privKeyHex = privKey.GetRawHex(sbPubKeyHex)

' If the private key size in bits is 256, then we should have a 32-byte key (a 64 character hex string).
Debug.Print "private key = " & privKeyHex

' The public key is composed of the "x" and "y" parts, and is composed like this:  04||HEX(x)||HEX(y)
Debug.Print "public key = " & sbPubKeyHex.GetAsString()

' Sample output:
' key type = ecc
' size in bits = 256
' private key = ced36f2ba3332be439f79143d69937fc52494cd38e45243c3ea05db183919f1b
' public key = 045b4edcd501831740895f5907feabb71587076a6314d9d5141f9f8c33a478b8ce08b8dfd2a091eb6355803d7e729876c790bc0b176f2015f3bb103813753f676a

 

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