DataFlex

Generate an Ed25519 Key Pair

See more Ed25519 Examples

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

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

DataFlex

Use ChilkatAx-win32.pkg

Procedure Test
    Boolean iSuccess
    Handle hoEddsa
    Variant vPrng
    Handle hoPrng
    Variant vPrivKey
    Handle hoPrivKey
    String sJwk
    Handle hoJson
    String sTemp1

    Move False To iSuccess

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

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

    // Generates a new eddsa key and stores it in privKey.
    Get pvComObject of hoPrng to vPrng
    Get pvComObject of hoPrivKey to vPrivKey
    Get ComGenEd25519Key Of hoEddsa vPrng vPrivKey To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoEddsa To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // Examine the ed25519 key in JWK format;
    Get ComGetJwk Of hoPrivKey To sJwk

    Get Create (RefClass(cComChilkatJsonObject)) To hoJson
    If (Not(IsComObjectCreated(hoJson))) Begin
        Send CreateComObject of hoJson
    End
    Get ComLoad Of hoJson sJwk To iSuccess
    Set ComEmitCompact Of hoJson To False
    Get ComEmit Of hoJson To sTemp1
    Showln sTemp1

    // 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.


End_Procedure