B4X

Load an Ed25519 Private Key from Hex

See more Ed25519 Examples

Demonstrates how to load an Ed25519 private key from raw hex bytes.

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

B4X

Dim success As Boolean = False

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

Dim privKey As ChilkatPrivateKey
privKey.Initialize("privKey")

'  We have the hexidecimal encoded bytes of the private key and public key:
Dim privKeyHex As String = "d4ee72dbf913584ad5b6d8f1f769f8ad3afe7c28cbf1d4fbe097a88f44755842"
Dim pubKeyHex As String = "19bf44096984cdfe8541bac167dc3b96c85086aa30b6b6cb0c5c38ad703166e1"

'  Load these values into the Chilkat private key object:
success = privKey.LoadEd25519(privKeyHex, pubKeyHex)
If success = False Then
    Log(privKey.LastErrorText)
    Return
End If


'  ---------------------------------------------------------------
'  We don't actually need the public key.  If we pass an empty string for the public key,
'  Chilkat will automatically compute it.
Dim privKey2 As ChilkatPrivateKey
privKey2.Initialize("privKey2")
success = privKey2.LoadEd25519(privKeyHex, "")

'  Let's get the public key to see that it computed the same value.
Dim sbPubKeyHex As ChilkatStringBuilder
sbPubKeyHex.Initialize
privKeyHex = privKey2.GetRawHex(sbPubKeyHex)
Log("computed public key = " & sbPubKeyHex.GetAsString)

'  The output should be:
'  computed public key = 19bf44096984cdfe8541bac167dc3b96c85086aa30b6b6cb0c5c38ad703166e1