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

VB.NET UWP/WinRT Examples

Web API Categories

ASN.1
Amazon Glacier
Amazon S3
Amazon S3 (new)
Amazon SES
Amazon SNS
Amazon SQS
Azure Cloud Storage
Azure Service Bus
Base64
Bounced Email
Box
CAdES
CSR
CSV
Certificates
Compression
DKIM / DomainKey
DSA
Diffie-Hellman
Digital Signatures
Dropbox
Dynamics CRM
ECC
Email Object
Encryption
FTP
FileAccess
Firebase
GMail REST API
Geolocation
Google APIs
Google Calendar
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
Microsoft Graph
NTLM
OAuth1
OAuth2
OneDrive
OpenSSL
Outlook
PEM
PFX/P12
POP3
PRNG
REST
REST Misc
RSA Encryption
SCP
SFTP
SMTP
SSH
SSH Key
SSH Tunnel
SharePoint
Socket/SSL/TLS
Spider
Stream
Tar Archive
Upload
WebSocket
XAdES
XML
XML Digital Signatures
XMP
Zip
curl

 

 

 

(VB.NET UWP/WinRT) Generate RSA Key and Export to PKCS1 / PKCS8

VB.NET UWP/WinRT 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 Universal Windows Platform (UWP) / WinRT Downloads

Chilkat for the Universal Windows Platform (UWP)

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

Dim rsa As New Chilkat.Rsa

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


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

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

' Get the public key in PKCS8 format, in a Base64 encoded string.
Dim pubKeyPkcs8Base64 As String = pubKey.GetPkcs8ENC("base64")
Debug.WriteLine(pubKeyPkcs8Base64)

' Get the public key in PKCS1 format, in a Base64 encoded string.
Dim pubKeyPkcs1Base64 As String = pubKey.GetPkcs1ENC("base64")
Debug.WriteLine(pubKeyPkcs1Base64)

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

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

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

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


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

' Save the public key to PKCS8 binary DER
' Note: Chilkat is confusingly using the substring "OpenSsl" in the method name.
' A better choice would've been "SavePkcs8DerFile". When you see "OpenSsl" referring to
' a key format in a Chilkat method name, assume "PKCS8".
success = pubKey.SaveOpenSslDerFile("pubKey_pkcs8.der")

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

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




 

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