AzelusLightvale-ComfyUI-ARG-Toolkit/web/docs/EdDSAVerify.md

EdDSA Message Verification

Verifies an EdDSA digital signature against a message.

Source library: cryptography

Overview

This node verifies that a signature was legitimately created by the holder of a specific EdDSA private key. It takes the message, the signature, and the corresponding public key and returns whether the signature is valid. This is the counterpart to the EdDSA Signature Generator.

Parameters

• key_type: The EdDSA curve (Ed25519 or Ed448).
• key_source: How to obtain the public key.
  • From Private Bytes: Loads the public key from serialized bytes.
  • From Loaded Key: Uses a public key object passed from another node.
• message: The original message that was signed, as a BYTESLIKE object.
• signature: The signature to verify, as a BYTESLIKE object.
• public_bytes: (Optional) The serialized public key bytes. Required when key_source is "From Private Bytes".
• public_key: (Optional) A loaded public key object (KEYOBJ). Required when key_source is "From Loaded Key".

Outputs

• verify_status: A BOOLEAN that is True if the signature is valid for the given message and public key, and False otherwise.

Additional Considerations

• Always verify signatures using a trusted public key. If an attacker can provide the public key, they can forge signatures.
• Verification is the essential step in ensuring that a message has not been tampered with and genuinely came from the claimed sender.