PureBasic

Load a Raw Ed25519 Public Key

Demonstrates the Chilkat PublicKey.LoadEd25519 method, which loads a raw Ed25519 public key from a hexadecimal string. The only argument must be exactly 64 hexadecimal characters (32 bytes).

Background: An Ed25519 public key is simply a fixed 32-byte value, so raw hex is a natural way to carry it — no ASN.1 container required. This loader takes those bytes directly, which is useful when a key comes from a system that emits raw values rather than a PEM or JWK. For a standard container, use LoadFromString or one of the DER/PEM loaders instead.

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IncludeFile "CkPublicKey.pb"

Procedure ChilkatExample()

    success.i = 0

    ;  Demonstrates the PublicKey.LoadEd25519 method, which loads a raw Ed25519 public key from a
    ;  hexadecimal string.  The only argument must be exactly 64 hexadecimal characters (32 bytes).

    pubKey.i = CkPublicKey::ckCreate()
    If pubKey.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    ;  The 32-byte Ed25519 public key as 64 hex digits.
    pubKeyHex.s = "d75a980182b10ab7d54bfed3c964073a0ee172f3daa62325af021a68f707511a"

    success = CkPublicKey::ckLoadEd25519(pubKey,pubKeyHex)
    If success = 0
        Debug CkPublicKey::ckLastErrorText(pubKey)
        CkPublicKey::ckDispose(pubKey)
        ProcedureReturn
    EndIf

    Debug "Loaded an Ed25519 public key."


    CkPublicKey::ckDispose(pubKey)


    ProcedureReturn
EndProcedure