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
AWS KMS
AWS Misc
Amazon EC2
Amazon Glacier
Amazon S3
Amazon S3 (new)
Amazon SES
Amazon SNS
Amazon SQS
Async
Azure Cloud Storage
Azure Key Vault
Azure Service Bus
Azure Table Service
Base64
Bounced Email
Box
CAdES
CSR
CSV
Certificates
Code Signing
Compression
DKIM / DomainKey
DNS
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
Misc
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
SharePoint Online
Signing in the Cloud
Socket/SSL/TLS
Spider
Stream
Tar Archive
ULID/UUID
Upload
WebSocket
XAdES
XML
XML Digital Signatures
XMP
Zip
curl

 

 

 

(Visual Basic 6.0) Generate RSA Key and Export to PKCS1 / PKCS8

Visual Basic 6.0 example code showing how to generate an RSA public/private key and save to PKCS1 and PKCS8 format files. In a PKCS1 or PKCS8 formatted file, the key is stored in binary ASN.1 format (and ASN.1 is itself written according to DER -- Distinguished Encoding Rules). A PEM file simply contains the binary ASN.1 base64 encoded and delimited by BEGIN/END lines. PKCS1 format files are never encrypted. PKCS8 can be encrypted or unencrypted. Public keys are never encrypted (there is no need). Private keys *should* always be encrypted - unless perhaps the unencrypted private key is obtained and itself stored in some sort of secure place.

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.

Dim rsa As New ChilkatRsa

' Generate a 2048-bit key.  Chilkat RSA supports
' key sizes ranging from 512 bits to 8192 bits.
Dim success As Long
success = rsa.GenerateKey(2048)
If (success <> 1) Then
    Debug.Print rsa.LastErrorText
    Exit Sub
End If

' Get the public and private key parts:
Dim pubKey As PublicKey
Set pubKey = rsa.ExportPublicKeyObj()
Dim privKey As PrivateKey
Set privKey = rsa.ExportPrivateKeyObj()

' Get the public key as a PKCS8 PEM string
Dim pubKeyPem As String
pubKeyPem = pubKey.GetPem(0)
Debug.Print pubKeyPem

' Get the public key in PKCS8 format, in a Base64 encoded string.
Dim pubKeyPkcs8Base64 As String
pubKeyPkcs8Base64 = pubKey.GetEncoded(0,"base64")
Debug.Print pubKeyPkcs8Base64

' Get the public key in PKCS1 format, in a Base64 encoded string.
Dim pubKeyPkcs1Base64 As String
pubKeyPkcs1Base64 = pubKey.GetEncoded(1,"base64")
Debug.Print pubKeyPkcs1Base64

' Get the private key in a PKCS8 PEM string.
Dim privKeyPem As String
privKeyPem = privKey.GetPkcs8Pem()
Debug.Print privKeyPem

' Get the private key in a PKCS8 encrypted PEM string.
Dim privKeyEncPem As String
privKeyEncPem = privKey.GetPkcs8EncryptedPem("myPassword")
Debug.Print privKeyEncPem

' Get the private key in PKCS1 Base64 format
Dim privKeyPkcs1Base64 As String
privKeyPkcs1Base64 = privKey.GetPkcs1ENC("base64")
Debug.Print privKeyPkcs1Base64

' Get the private key in PKCS8 Base64 format
Dim privKeyPkcs8Base64 As String
privKeyPkcs8Base64 = privKey.GetPkcs8ENC("base64")
Debug.Print privKeyPkcs8Base64

' Save to PKCS1 / PKCS8 / PEM files...

' Save the public key to PKCS8 binary DER
success = pubKey.SaveDerFile(0,"pubKey_pkcs8.der")

' Save the public key to PKCS1 binary DER
success = pubKey.SaveDerFile("pubKey_pkcs1.der")

' Save the private key to unencrypted binary PKCS1 DER.
' Note: PKCS1 is never found in an encrypted format. 
success = privKey.SavePkcs1File("privKey_pkcs1.der")

' Save the private key to unencrypted binary PKCS8
success = privKey.SavePkcs8File("privKey_pkcs8.der")

' Save the private key to encrypted binary PKCS8
success = privKey.SavePkcs8EncryptedFile("myPassword","privKey_enc_pkcs8.der")

' Save the private key to unencrypted PKCS8 PEM
success = privKey.SavePkcs8PemFile("privKey.pem")

' Save the private key to encrypted PKCS8 PEM
success = privKey.SavePkcs8EncryptedPemFile("myPassword","privKey_enc.pem")


 

© 2000-2024 Chilkat Software, Inc. All Rights Reserved.