(Xojo Plugin) RSA Signature using Private Key from .snk File

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This example loads a private key from a .snk file and creates an RSA signature.

Chilkat Xojo Plugin Download Xojo Plugin for Windows, Linux, Mac OS X, and ARM, ARM64

Dim rsa As New Chilkat.Rsa

// Load the .snk and return the private key as XML.
Dim xmlStr As String
xmlStr = rsa.SnkToXml("./test.snk")
If (rsa.LastMethodSuccess = False) Then
    System.DebugLog(rsa.LastErrorText)
    Return
End If

Dim success As Boolean
success = rsa.ImportPrivateKey(xmlStr)
If (success = False) Then
    System.DebugLog(rsa.LastErrorText)
    Return
End If

// Sign the SHA-256 hash of the utf-8 byte representation of the contents of sb
// Return the signature in base64 format.
rsa.EncodingMode = "base64"
rsa.Charset = "utf-8"
Dim sigBase64 As String
sigBase64 = rsa.SignStringENC("This is the text to be hashed and signed.","sha256")
If (rsa.LastMethodSuccess = False) Then
    System.DebugLog(rsa.LastErrorText)
    Return
End If

System.DebugLog("RSA signature as base64: " + sigBase64)