The company says an independent review verified 120 security properties in its MaxKyber protocol, highlighting a push to make post-quantum security measurable rather than assumed.
American Binary is placing formal verification at the center of its approach to post-quantum network security, announcing an independent attestation of 120 security properties in MaxKyber, the protocol underlying its Ambit Client enterprise VPN. The review, conducted by cryptography and security specialists Joe Kiniry and Tom Shrimpton, examined symbolic proofs and engineering documentation and verified the protocol’s compliance with Commercial National Security Algorithm Suite 2.0 requirements.
The distinction matters as organizations prepare for the possibility that future quantum computers could undermine widely used forms of public-key cryptography. One concern is “harvest now, decrypt later,” in which encrypted information is collected today with the expectation that improved computing capabilities could eventually make it readable. MaxKyber is designed around CNSA 2.0-approved algorithms, including ML-KEM-1024 for key establishment, AES-256-GCM and SHA-512/256, rather than combining post-quantum and classical key exchange methods.
American Binary’s verification effort covers properties including secrecy, authentication, forward secrecy, identity hiding and resistance to several forms of attack. Formal methods such as Tamarin and ProVerif differ from conventional security testing by mathematically modeling protocol behavior and checking whether specified security properties hold under defined assumptions. Such verification does not eliminate every implementation or operational risk, but it can provide organizations with a more systematic basis for evaluating how a cryptographic protocol was designed.
The company is also positioning efficiency as part of the protocol’s design. Its authenticated key exchange completes mutual authentication in a single round trip and, according to American Binary, uses approximately 4,600 fewer bytes per handshake than the alternative cited in its announcement. A partner benchmark also reported 70% faster download speeds for the MaxKyber-powered Ambit Client than a comparable enterprise VPN using classical encryption, though broader independent performance comparisons would be needed to establish how representative that result is.
Beyond technical performance, the announcement points to another emerging issue in post-quantum migration: verification itself may become part of procurement and compliance. As organizations evaluate unfamiliar cryptographic systems, detailed proofs and documentation could make security claims easier to scrutinize and potentially shorten technical review cycles. American Binary’s approach illustrates a shift from simply adopting new algorithms toward demonstrating, in a structured way, how those algorithms behave inside complete network protocols.
