DataFlex

Get an Ed25519 Key in Raw Hex Format

See more Ed25519 Examples

Demonstrates how to get the private and public key parts of an Ed25519 key in lowercase hex formmat.

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

DataFlex

Use ChilkatAx-win32.pkg

Procedure Test
    Boolean iSuccess
    Handle hoPrivKey
    Variant vSbPubKeyHex
    Handle hoSbPubKeyHex
    String sPrivKeyHex
    String sTemp1
    Integer iTemp1

    Move False To iSuccess

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

    // Load an Ed25519 key from some format..
    Get Create (RefClass(cComChilkatPrivateKey)) To hoPrivKey
    If (Not(IsComObjectCreated(hoPrivKey))) Begin
        Send CreateComObject of hoPrivKey
    End

    // This loads an Ed25519 key from an unencrypted PEM file (no password required).
    Get ComLoadAnyFormatFile Of hoPrivKey "qa_data/eddsa/ed25519.pem" "" To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoPrivKey To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // The key type should be "ed25519" to indicate an Ed25519 key.
    Get ComKeyType Of hoPrivKey To sTemp1
    Showln "key type = " sTemp1

    // What is the size of the private key in bits?  (should always be 256 bits for Ed25519)
    Get ComBitLength Of hoPrivKey To iTemp1
    Showln "size in bits = " iTemp1

    // Get the private and public key parts in raw hex format:
    Get Create (RefClass(cComChilkatStringBuilder)) To hoSbPubKeyHex
    If (Not(IsComObjectCreated(hoSbPubKeyHex))) Begin
        Send CreateComObject of hoSbPubKeyHex
    End
    Get pvComObject of hoSbPubKeyHex to vSbPubKeyHex
    Get ComGetRawHex Of hoPrivKey vSbPubKeyHex To sPrivKeyHex

    // We should have a 32-byte private key (a 64 character hex string).
    Showln "private key = " sPrivKeyHex

    // We should have a 32-byte public key (a 64 character hex string).
    Get ComGetAsString Of hoSbPubKeyHex To sTemp1
    Showln "public key = " sTemp1

    // Sample output:
    // key type = ed25519
    // size in bits = 256
    // private key = d4ee72dbf913584ad5b6d8f1f769f8ad3afe7c28cbf1d4fbe097a88f44755842
    // public key = 19bf44096984cdfe8541bac167dc3b96c85086aa30b6b6cb0c5c38ad703166e1


End_Procedure