DataFlex

Load an Ed25519 Key from Raw Hex

Demonstrates the Chilkat PrivateKey.LoadEd25519 method, which loads an Ed25519 key pair from raw hexadecimal. The first argument is the 32-byte private seed and the second is the 32-byte public key. Each nonempty value must be exactly 64 hexadecimal digits.

Background: Ed25519 keys are compact fixed-size byte strings rather than the structured ASN.1 of RSA, so raw hex is a natural way to carry them. This loader takes the 32-byte seed (from which the full private key is derived) and the 32-byte public key directly, which is useful when a key originates from a system that emits raw values rather than a PEM or JWK container. For a standard container, use one of the PEM/PKCS #8/JWK loaders instead.

Chilkat DataFlex Downloads

Download Chilkat for DataFlex

DataFlex

Use ChilkatAx-win32.pkg

Procedure Test
    Boolean iSuccess
    Handle hoPrivKey
    String sPrivSeedHex
    String sPubKeyHex
    String sTemp1

    Move False To iSuccess

    //  Demonstrates the PrivateKey.LoadEd25519 method, which loads an Ed25519 key pair from raw
    //  hexadecimal.  The 1st argument is the 32-byte private seed and the 2nd is the 32-byte public
    //  key.  Each nonempty value must be exactly 64 hexadecimal digits.

    Get Create (RefClass(cComChilkatPrivateKey)) To hoPrivKey
    If (Not(IsComObjectCreated(hoPrivKey))) Begin
        Send CreateComObject of hoPrivKey
    End

    //  The 32-byte Ed25519 private seed and public key, each as 64 hex digits.
    Move "9d61b19deffkbfa4ffa4d8c8f8a5b4a3d9e8c7b6a5f4e3d2c1b0a9f8e7d6c5b4" To sPrivSeedHex
    Move "d75a980182b10ab7d54bfed3c964073a0ee172f3daa62325af021a68f707511a" To sPubKeyHex

    Get ComLoadEd25519 Of hoPrivKey sPrivSeedHex sPubKeyHex To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoPrivKey To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Showln "Loaded an Ed25519 private key."


End_Procedure