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

KBKDF Key Verification

Verifies a key derived with the KBKDF algorithm.

Source library: cryptography

Overview

This node re-derives a key using the same input parameters as the KBKDF Key Derivation node and compares it in constant time to an expected key.

Parameters

• message: The original master key (Ki) as a BYTESLIKE object.
• expected_key: The BYTESLIKE key to check against.
• length: The length of the derived key in bytes. Must match the original derivation.
• algorithm: The original hash function used for the PRF.
• operation_mode: The original PRF used (KBKDFHMAC or KBKDFCMAC).
• location: The original counter position.
• rlen: The original counter length.
• llen: The original key length field length.
• label: (Optional) The original label.
• context: (Optional) The original context.
• fixed: (Optional) The original fixed data.
• break_location: (Optional) The original break location for MiddleFixed mode.

Outputs

• verified_status: A BOOLEAN that is True if the re-derived key matches the expected key, and False otherwise.