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(VB.NET) Generate an RSA Key and Get as Base64 DERDemonstrates how to generate a 2048-bit RSA key and return the public and private parts as unencrypted Base64 encoded DER. Note: This example requires Chilkat v11.0.0 or greater.
Dim success As Boolean = False ' 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. Dim privKey As New Chilkat.PrivateKey success = rsa.GenKey(2048,privKey) If (success = False) Then Debug.WriteLine(rsa.LastErrorText) Exit Sub End If ' Get the public part of the key. Dim pubKey As New Chilkat.PublicKey privKey.ToPublicKey(pubKey) ' There are two possible formats for representing the RSA public key ' in ASN.1 (DER). The possible formats are PKCS1 and PKCS8. ' We can get either by setting bChoosePkcs1 to True or False. Dim bChoosePkcs1 As Boolean = True Dim pubKeyBase64Der As String = pubKey.GetEncoded(bChoosePkcs1,"base64") Debug.WriteLine("Public Key Base64 DER:") Debug.WriteLine(pubKeyBase64Der) ' Get the private key as Base64 DER: ' We can get PKCS1 or PKCS8, but with different methods: Dim privKeyPkcs1 As String = privKey.GetPkcs1ENC("base64") Debug.WriteLine("Private Key PKCS1 Base64 DER:") Debug.WriteLine(privKeyPkcs1) Dim privKeyPkcs8 As String = privKey.GetPkcs8ENC("base64") Debug.WriteLine("Private Key PKCS8 Base64 DER:") Debug.WriteLine(privKeyPkcs8) |
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