ML-DSA and ML-KEM are different tools
ML-DSA is the digital-signature standard specified in NIST FIPS 204. It supports authenticity and integrity of signed data. ML-KEM is the key-encapsulation standard specified in NIST FIPS 203. It establishes shared key material; it does not replace a digital signature.
Why hybrid authorization matters
Enterprise authorization is a system, not a single algorithm. Identity, sessions, policy evaluation, key lifecycle, audit and recovery remain necessary. A hybrid design introduces a post-quantum proof at selected control points while existing classical mechanisms remain available during evaluation and migration.
Operation binding
A useful authorization signature must cover a fresh challenge and the specific operation being approved. Signing a generic login statement is not equivalent to approving a privileged change. The verifier must reject altered context, expired challenges and replayed proofs.
Qryption approach and limits
Qryption combines a physical presence signal with an SDK-based verifier. The product is in private pilot; public benchmarks, certification results and a complete protocol specification are not yet available. These are necessary evidence items for future technical evaluation.