(Excel) Generate an Ed25519 Key Pair

Demonstrates how to generate a new Ed25519 public/private key pair.

Note: This example requires Chilkat v9.5.0.83 or greater.

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

Dim eddsa As Chilkat.EdDSA
Set eddsa = Chilkat.NewEdDSA
Dim prng As Chilkat.Prng
Set prng = Chilkat.NewPrng
Dim privKey As Chilkat.PrivateKey
Set privKey = Chilkat.NewPrivateKey

' Generates a new eddsa key and stores it in privKey.

success = eddsa.GenEd25519Key(prng,privKey)
If (success = False) Then
    Debug.Print eddsa.LastErrorText
    Exit Sub
End If

' Examine the ed25519 key in JWK format;

jwk = privKey.GetJwk()

Dim json As Chilkat.JsonObject
Set json = Chilkat.NewJsonObject
Dim success As Boolean
success = json.Load(jwk)
json.EmitCompact = False
Debug.Print json.Emit()

' Sample output:
' {
'   "kty": "OKP",
'   "crv": "Ed25519",
'   "x": "SE2Kne5xt51z1eciMH2T2ftDQp96Gl6FhY6zSQujiP0",
'   "d": "O-eRXewadF0sNyB0U9omcnt8Qg2ZmeK3WSXPYgqe570",
'   "use": "sig"
' }

' In the above JWK, x is the public key, y is the private key.
' Both are 32 bytes and are base64-url encoded.