(VB.NET) Generate an RSA Key and Save to Encrypted PEM

See more RSA Examples

Demonstrates how to generate an RSA key and save to an encrypted PEM file.

Chilkat .NET Downloads Chilkat .NET Framework Chilkat for .NET Core

Dim rsa As New Chilkat.Rsa

' Generate a 2048-bit key.
Dim success As Boolean = rsa.GenerateKey(2048)
If (success = False) Then
    Debug.WriteLine(rsa.LastErrorText)
    Exit Sub
End If


Dim privKey As Chilkat.PrivateKey = rsa.ExportPrivateKeyObj()
Dim password As String = "secret"
' Saving to a relative path (from the current working directory of the process).
Dim path As String = "rsaKeys/myTestRsaPrivate.pem"
' Encrypt the PEM using 256-bit AES encryption.
privKey.Pkcs8EncryptAlg = "aes256"
success = privKey.SavePkcs8EncryptedPemFile(password,path)
If (success = False) Then
    Debug.WriteLine(privKey.LastErrorText)
    Exit Sub
End If



' 

' We can also save the public key.
' There is no need to encrypt public keys.
Dim pubKey As Chilkat.PublicKey = rsa.ExportPublicKeyObj()
path = "rsaKeys/myTestRsaPublic.pem"
' Choose PKCS1 or PKCS8
' We'll choose PKCS8.
Dim preferPkcs1 As Boolean = False
success = pubKey.SavePemFile(preferPkcs1,path)
If (success = False) Then
    Debug.WriteLine(pubKey.LastErrorText)
    Exit Sub
End If



' 

Debug.WriteLine("Success.")