QRCS is a leading Quantum Cryptographic R&D company that has produced a powerful set of post-quantum secure cryptographic tools poised to change the landscape of financial technologies and secure communications. We offer a wide range of futuristic technologies, designed to meet the security challenges presented by Quantum computers and AI. The future is coming fast, and we are prepared for rapidly evolving threat landscapes with a suite of cutting-edge new security tools. We are now inviting investors and acquirers to assess our groundbreaking new technologies and be a part of our future success.
QSC The Quantum Secure Cryptographic library
QSC is a comprehensive, post-quantum cryptographic framework built in Ansi C with strict adherence to MISRA secure coding standards. Designed for clarity, modularity, and high-performance across embedded and enterprise platforms, QSC integrates state-of-the-art cryptographic primitives with an extensive set of networking, threading, memory, and utility tools. It supports classical algorithms like AES, ChaCha, SHA2, and ECDSA for backward compatibility, but emphasizes future-proof security through advanced primitives including SHA3, KMAC, cSHAKE, and post-quantum asymmetric algorithms such as Kyber, Dilithium, SPHINCS+, McEliece, and NTRU.
The library includes powerful symmetric ciphers like CSX-512 and RCS—both authenticated AEAD stream ciphers with 512-bit security and Keccak-based MACs—as well as a full suite of secure hash functions and MACs, including QMAC for quantum-resilient message authentication. QSC’s high-entropy random generators, DRBGs, and key derivation functions (like HKDF and SECRAND) support strong and adaptive key management.
Beyond cryptography, QSC offers a complete IPv4/IPv6 networking stack, asynchronous threading, event scheduling, and SIMD-accelerated memory and processor utilities. It dynamically adapts to modern CPU features like AVX, AVX2, and AVX-512 for optimized performance.
With its modular structure, strict coding discipline, and robust cryptographic foundation, QSC is ideal for everything from low-resource IoT devices to high-throughput secure servers. It is a future-ready foundation for building cryptographic applications that require resilience against both classical and quantum threats.
HKDS Hierarchal Key Distribution System
HKDS is a quantum-secure, high-performance alternative to DUKPT for key management in electronic payments.
Built on FIPS-approved SHAKE and KMAC functions from the NIST SHA-3 standard, HKDS enables fast, scalable key distribution across millions of devices.
HKDS is over 100× faster on POS devices and up to 7× faster on servers compared to AES-based DUKPT. Its design ensures low infrastructure demands, and seamless migration to higher security levels without modifying deployed devices.
SKDP Symmetric Key Distribution Protocol
SKDP is a lightweight, quantum-secure protocol that redefines key exchange using symmetric cryptography instead of traditional public-key methods.
At its core is the RCS cipher—an advanced Rijndael-based stream cipher with strengthened Keccak-derived key expansion and built-in message authentication using KMAC.
SKDP creates a duplexed communication model where both parties independently generate ephemeral session keys, providing forward secrecy and isolating compromise. Its hierarchical key derivation structure enables secure deployment across millions of devices, from IoT to cloud systems. Each packet includes UTC timestamps for built-in anti-replay protection.
Unlike asymmetric systems threatened by quantum computing, SKDP is inherently quantum-resistant and scalable, offering high throughput with minimal overhead. Industries like finance, government, and embedded systems can use SKDP to securely scale encrypted communications while eliminating reliance on vulnerable pre-shared or long-term keys. SKDP is future-proof, resilient, and efficient—built for secure communication in the quantum era.
QSTP Quantum Secure Tunneling Protocol
QSTP is designed for high-security applications, it uses cryptographic primitives like Kyber, Dilithium, and RCS to ensure confidentiality, integrity, and quantum resistance.
Built-in root trust, layered certificate verification, anti-replay safeguards, and session-specific keying provide strong protection against interception and tampering.
Ideal for VPNs, financial services, government systems, and secure messaging, QSTP delivers scalable, future-proof encryption for critical data networks.
MPDC Multi Party Domain Cryptosystem
MPDC is a post-quantum, distributed key exchange and authentication framework designed for complex, multi-entity networks. MPDC introduces a novel entropy-sharing model where multiple independent agents contribute random input during key exchange, ensuring that session keys remain secure even if individual nodes are compromised. This decentralization—combined with robust post-quantum cryptographic primitives like Kyber, McEliece, Dilithium, and SPHINCS+—offers resilient protection against both classical and quantum attacks.
At the heart of MPDC is a hierarchical trust model. A Root Domain Security Server (RDS) issues certificates to devices like Clients, Application Servers (MAS), Domain List Agents (DLA), and field Agents. Devices generate their own asymmetric key pairs and authenticate through this trusted certificate hierarchy, enabling scalable, secure communication across thousands or even millions of nodes.
Each session’s symmetric key is derived from fragmented entropy shared between devices, with cSHAKE-based derivation ensuring forward secrecy and key uniqueness. Anti-replay measures—such as timestamped message headers and integrated MACs—guard against tampering and message reuse.
MPDC is tailored for high-assurance environments such as financial services, defense systems, healthcare networks, industrial control systems, and cloud infrastructure. It delivers efficient initialization, low-latency encrypted communication, and seamless scaling—all while maintaining regulatory compliance and operational trust.
As quantum computing advances, MPDC offers a proactive defense: a secure, future-ready architecture that enables distributed entities to communicate and operate with confidence in an unpredictable digital landscape.
PQS Post Quantum Shell
PQS is a next-generation remote access protocol designed to replace SSH with quantum-resistant security. Built on robust cryptographic algorithms like Kyber, Dilithium, McEliece, and RCS, PQS delivers strong encryption, digital signature verification, and authenticated session management. It operates on a one-way trust model, using ephemeral key exchanges and certificate-based authentication to ensure forward secrecy and tamper resistance. Ideal for finance, government, healthcare, and cloud services, PQS offers a secure, future-proof solution for managing critical infrastructure in the post-quantum era.
QSMP Quantum Secure Messaging Protocol
QSMP is a high-assurance encrypted tunneling framework engineered for maximum security in the quantum era. It supports both Duplex (bi-directional trust) and Simplex (one-way trust) configurations, offering flexibility for peer-to-peer, server-client, and distributed environments. Built entirely from post-quantum cryptographic primitives—including Kyber, McEliece, Dilithium, and SPHINCS+—QSMP delivers end-to-end encryption, robust authentication, and verified integrity, all designed to withstand the threat of quantum decryption.
QSMP supports the creation of 512-bit symmetric secure tunnels using its wide-block Rijndael-based stream cipher, RCS-512, offering quantum-level security for high-value and sensitive communication. Its signature-verified key exchange ensures that each tunnel is authenticated and uniquely keyed with ephemeral secrets. For performance, QSMP is optimized to support hundreds of thousands of concurrent connections in multi-threaded deployments, making it suitable for large-scale enterprise and government systems.
Every tunnel is secured using Authenticated Encryption with Associated Data (AEAD), leveraging KMAC (SHA-3 MAC) for tamper detection and packet-level integrity. Its versatile design makes QSMP ideal for applications in military communications, critical infrastructure, financial networks, remote command systems, and encrypted trading platforms.
QSMP offers a hardened messaging core that is fully modular, easy to integrate, and built without compromise. It represents a decisive step forward for institutions requiring military-grade, future-proof security. In an era where traditional protocols are rapidly becoming obsolete, QSMP ensures that your communications remain secure—today and decades into the quantum future.
AERN Anonymous Encrypted Relay Network
Authenticated Encrypted Relay Network (AERN) is a next-generation anonymity and security platform built to replace legacy systems like TOR with a faster, safer, and quantum-secure alternative. AERN operates on a private, federated mesh of authenticated proxy servers—each node cryptographically verified and linked through symmetric tunnels. Every message is end-to-end encrypted, routed randomly, and uniform in size, protecting against traffic analysis, surveillance, and metadata profiling.
SATP Symmetric Authenticated Tunneling Protocol
Symmetric Authenticated Tunneling Protocol (SATP) is a next-generation security layer that delivers quantum-safe encryption and mutual authentication without public-key overhead. Built entirely on SHA-3–family primitives and a wide-block Rijndael stream cipher, SATP replaces bulky X.509 certificates with a compact 16-byte identity string. A client transmits that identity and a fresh nonce; the server responds with a single authenticated hash. Two packets—well under one kilobyte—establish a fully encrypted, forward-secret tunnel in less than a millisecond, even on 32-bit micro-controllers.Every session consumes a one-time 256-bit key, so past traffic remains private even if a device or branch server is later compromised. Servers hold only a branch key and epoch counter, eliminating certificate renewal, CRLs, and OCSP endpoints while cutting handshake CPU by more than 90 percent compared with TLS. The reference implementation occupies < 30 kB of flash and < 4 kB of RAM, making SATP ideal for contactless payments, IoT sensors, critical-infrastructure PLCs, satellite telemetry, and zero-trust micro-services. With SATP, organisations gain deterministic, post-quantum security minus the latency, battery drain, and operational drag of legacy PKI.
SIAP Secure Infrastructure Access Protocol
SIAP (Secure Infrastructure Access Protocol) is a compact, post-quantum authentication system that replaces passwords, static keys, and certificates with a memory card and passphrase. Built entirely on SHA-3-family primitives and a memory-hard KDF, SIAP delivers strong two-factor login, forward secrecy, and offline support without any reliance on PKI. Each session burns a one-time key, ensuring that credentials are never reused or exposed, even under server compromise. With a footprint under 30 kB, SIAP runs on smart cards, USB tokens, or embedded controllers, and integrates seamlessly into existing TLS, SSH, or custom tunnels. Whether securing fintech consoles, cold-wallets, payment devices, or SCADA nodes, SIAP provides fast, future-proof access control ready for a quantum-resilient world.
DKTP Dual Key Tunneling Protocol
Dual Key Tunneling Protocol (DKTP) is a next-generation cryptographic tunnel that delivers up to 512-bit post-quantum security through a dual-entropy model combining asymmetric key exchange and persistent symmetric pre-shared keys. Designed for sovereign, embedded, and high-assurance systems, DKTP enables mutual authentication without requiring PKI or certificates, making it ideal for secure communication in zero-trust or offline environments.Each session establishes two independently derived tunnel keys; one for transmit, one for receive, ensuring directional separation, forward secrecy, and post-compromise security. The protocol uses SHAKE for key derivation, SHA3 for hashing, KMAC for authentication, and RCS as its high-strength AEAD cipher. Handshake stages include UTC-based replay protection, full configuration binding, and cryptographic validation at every step.With support for Kyber, McEliece Dilithium, and SPHINCS+ primitives, DKTP is resistant to quantum attacks and legacy cryptographic weaknesses. It is engineered for environments where trust cannot be delegated, and where long-term security must be guaranteed -even under compromise. DKTP can replace TLS, IPsec, or VPN tunnels with a fully authenticated, certificate-free, quantum-resistant alternative.
UDIF Universal Digital Identity Framework
The Universal Digital Identity Framework (UDIF) is a post-quantum identity infrastructure designed to replace fragile PKI and siloed identity systems. UDIF defines standardized formats for certificates, identity records, claims, capabilities, and tokens, all bound by deterministic canonicalization and cryptographic anchors. Each object commits to policies and claims via Merkle roots, ensuring verifiable and privacy-preserving identities. Using post-quantum signatures and hashes, UDIF resists classical and quantum attacks while enabling minimal-disclosure proofs and federated interoperability across domains.
Built for the Quantum Future
Explore the future of secure communication with our suite of post-quantum technologies: HKDS, QSMP, SKDP, QSTP, MPDC, PQS, AERN, SATP, SIAP, and QSC. Built by Quantum Resistant Cryptographic Solutions, we deliver military-grade, future-proof security systems for a post-quantum world. Contact us to learn how to protect what matters most... the future.