Tcl

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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Tcl


load ./chilkat.dll

set success 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).

set pubKey [new_CkPublicKey]

#  The 32-byte Ed25519 public key as 64 hex digits.
set pubKeyHex "d75a980182b10ab7d54bfed3c964073a0ee172f3daa62325af021a68f707511a"

set success [CkPublicKey_LoadEd25519 $pubKey $pubKeyHex]
if {$success == 0} then {
    puts [CkPublicKey_lastErrorText $pubKey]
    delete_CkPublicKey $pubKey
    exit
}

puts "Loaded an Ed25519 public key."

delete_CkPublicKey $pubKey