Chilkat2-Python

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.

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import sys
import chilkat2

success = False

# 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.

privKey = chilkat2.PrivateKey()

# The 32-byte Ed25519 private seed and public key, each as 64 hex digits.
privSeedHex = "9d61b19deffkbfa4ffa4d8c8f8a5b4a3d9e8c7b6a5f4e3d2c1b0a9f8e7d6c5b4"
pubKeyHex = "d75a980182b10ab7d54bfed3c964073a0ee172f3daa62325af021a68f707511a"

success = privKey.LoadEd25519(privSeedHex,pubKeyHex)
if (success == False):
    print(privKey.LastErrorText)
    sys.exit()

print("Loaded an Ed25519 private key.")