VBScript

Load a Raw Ed25519 Public Key

Demonstrates the Chilkat PublicKey.LoadEd25519 method, which loads a raw Ed25519 public key from a hexadecimal string. The only argument must be exactly 64 hexadecimal characters (32 bytes).

Background: An Ed25519 public key is simply a fixed 32-byte value, so raw hex is a natural way to carry it — no ASN.1 container required. This loader takes those bytes directly, which is useful when a key comes from a system that emits raw values rather than a PEM or JWK. For a standard container, use LoadFromString or one of the DER/PEM loaders instead.

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VBScript

Dim fso, outFile
Set fso = CreateObject("Scripting.FileSystemObject")
'Create a Unicode (utf-16) output text file.
Set outFile = fso.CreateTextFile("output.txt", True, True)

success = 0

'  Demonstrates the PublicKey.LoadEd25519 method, which loads a raw Ed25519 public key from a
'  hexadecimal string.  The only argument must be exactly 64 hexadecimal characters (32 bytes).

set pubKey = CreateObject("Chilkat.PublicKey")

'  The 32-byte Ed25519 public key as 64 hex digits.
pubKeyHex = "d75a980182b10ab7d54bfed3c964073a0ee172f3daa62325af021a68f707511a"

success = pubKey.LoadEd25519(pubKeyHex)
If (success = 0) Then
    outFile.WriteLine(pubKey.LastErrorText)
    WScript.Quit
End If

outFile.WriteLine("Loaded an Ed25519 public key.")

outFile.Close