Quantum Cybersecurity Solutions

The quantum threat
is already here.
Is your data safe?

Adversaries are harvesting encrypted enterprise data today — planning to decrypt it when quantum computers arrive. QuantShield helps organisations migrate to quantum-safe cryptography before the window closes.

2030
Estimated CRQC
arrival (NSA)
~70%
Enterprise crypto
is RSA/ECC
FIPS
NIST PQC standards
finalised 2024
QUANTUM THREAT MONITOR
NOW
Harvest-now-decrypt-later campaigns active. Nation-state actors collecting TLS-encrypted data.
ACTIVE
2024
NIST finalised FIPS 203/204/205 — PQC standards now mandatory for US federal agencies.
STANDARD
2026
DORA, NIS2 enforcement tightening. Quantum risk expected in scope of cyber resilience audits.
COMPLIANCE
2030+
Cryptographically Relevant Quantum Computer projected. All RSA/ECC keys instantly vulnerable.
HORIZON
The problem
01
Your encryption is already compromised
Shor's algorithm running on a CRQC will factor RSA-2048 in hours. Every TLS session, every signed certificate, every encrypted database record protected by RSA or ECC is retrospectively at risk — including data stolen today.
02
You don't know where your cryptography lives
Most enterprises have no complete inventory of cryptographic assets — algorithms, key lengths, certificate chains, vendor dependencies. You cannot migrate what you haven't mapped. The average enterprise has 3–5× more cryptographic touchpoints than IT teams estimate.
03
Migration is a multi-year programme
Transitioning to post-quantum cryptography involves every layer of the stack: TLS, PKI, HSMs, SaaS vendors, IoT devices, and legacy systems. With CRQC timelines converging with enterprise migration cycles, the window to act is narrowing fast.
Solutions

Quantum-safe security, from assessment to operation

QuantShield delivers end-to-end quantum cybersecurity — from the initial readiness assessment through algorithm selection, migration execution, and ongoing quantum-aware security operations.

🔍
Quantum Readiness Assessment
A structured 4–6 week engagement producing a complete cryptographic asset register, HNDL risk heat map, and executive readiness score. The foundational step for any quantum migration programme.
Crypto inventory Risk scoring Gap analysis Board report
🔐
Post-Quantum Cryptography Migration
End-to-end migration consulting — algorithm selection (CRYSTALS-Kyber, Dilithium, SPHINCS+), crypto agility architecture, hybrid deployment strategy, and phased migration roadmap aligned to NIST FIPS 203/204/205.
CRYSTALS-Kyber ML-DSA TLS migration PKI redesign
⚛️
Quantum Key Distribution Advisory
Evaluation, design, and vendor selection for QKD infrastructure — BB84 and E91 protocol deployments over fibre for ultra-high-security networks. Positioning QKD within a broader quantum-safe architecture.
BB84 / E91 QKD infrastructure ID Quantique Toshiba QKD
🎓
Quantum-Aware Security Training
Tailored training programmes for executive, security operations, and developer audiences — from 2-hour board briefings to 3-day technical workshops. Built around our interactive simulation lab tools.
Board briefing CISO advisory Dev training Workshops
Live simulation tools

Experience quantum security — interactively

These are the same tools we use in client workshops and board presentations. Try them now.

Quantum Random Number Generator

Each bit is produced by simulating a qubit in superposition — measured, collapsed, irreversibly random. No seed. No algorithm. Physical law.

16
TOTAL BITS
0
ZEROS
ONES
BIAS
0s vs 1s distribution (ideal: 50/50)
Bitstream
Output values
Press Generate to produce quantum-random values.

Classical PRNGs are deterministic — given the seed, every output is predictable. Quantum measurement is provably non-deterministic: the Born rule guarantees P(0) = P(1) = ½ with no underlying variable.

BB84 Quantum Key Distribution

Alice sends qubits to Bob. Eve intercepts. Watch the quantum bit error rate expose the eavesdropper — guaranteed by the no-cloning theorem.

20
QUBITS
SIFTED
QBER
KEY BITS
QBER — error rate (abort >11%)
Qubit transmission
Alice
Bob
Press Run to simulate the protocol.
Quantum Password & Key Generator

Passwords and keys derived from quantum entropy — not seeded PRNGs. Every character produced by a simulated qubit measurement.

16
Entropy
WeakGoodStrong
Generated value
Quantum bit source
Entropy comparison
Generate a password to see entropy comparison against classical methods.
History
No history yet.
Shor's Algorithm — RSA Threat Simulator

Select an RSA key size and see how Shor's algorithm reduces an astronomically hard problem to a trivial one. This is the existential threat to every RSA/ECC key in your estate.

Select a number and press Factor.
What this means for your RSA keys
RSA-2048 (most common today)
Classical factoring: ~10²⁰ years
Shor's algorithm: hours on a CRQC
ECC P-256 (TLS, SSH, code signing)
Classical attack: computationally infeasible
Shor's (variant): broken with ~2,330 logical qubits
CRYSTALS-Kyber (FIPS 203 — the solution)
Based on M-LWE — no known quantum speedup
Security maintained post-CRQC
Quantum Cryptography — Encrypt & Decrypt

Type a message. A quantum key is generated qubit-by-qubit (Hadamard → measure → collapse). Your message is encrypted with that key using XOR stream cipher — the same primitive used in AES-CTR and ChaCha20, here seeded by provably random quantum bits.

PLAINTEXT MESSAGE
Quantum XOR stream cipher — each keystream byte is produced by 8 qubit measurements (Hadamard gate → collapse). XOR with plaintext gives ciphertext. Security = key randomness. Quantum entropy = provably non-deterministic source.
Cryptographic output
QUANTUM KEY — generated qubit by qubit
CIPHERTEXT (hex)
DECRYPTED MESSAGE
MSG BYTES
KEY BITS
ENTROPY
SECURE?
Awaiting operation — type a message and press Encrypt.
How quantum cryptography differs from classical encryption
ENTROPY SOURCE
Quantum collapse
Each key bit produced by measuring a qubit in superposition. Born rule guarantees P(0)=P(1)=½. No seed. No algorithm.
vs classical: PRNG seed = predictable
KEY DISTRIBUTION
BB84 / QKD
Keys distributed over quantum channel. Eavesdropping physically detectable via QBER. No mathematical assumption — physics guarantees security.
vs RSA: broken by Shor's algorithm
ENCRYPTION CORE
XOR + quantum key
The XOR operation itself is information-theoretically perfect when the key is truly random and never reused. Quantum RNG provides the true randomness classical systems cannot.
OTP with quantum key = unbreakable
POST-QUANTUM READY
CRYSTALS-Kyber
For key exchange: FIPS 203 replaces RSA. For signatures: FIPS 204 (Dilithium) replaces ECDSA. QRNG feeds the key generation for both.
Shor-resistant · NIST standardised
XOR ENCRYPTION — BIT-LEVEL VISUALISATION
Plaintext
Quantum key
Ciphertext
Each ciphertext bit = plaintext bit XOR quantum key bit. With a truly random key (quantum-generated), the ciphertext is statistically indistinguishable from noise — no pattern, no structure, no foothold for cryptanalysis.
Threat timeline

The quantum clock is running

Understanding the timeline is the first step to knowing how urgently your organisation needs to act.

2019
Google achieves quantum supremacy
54-qubit Sycamore processor performs a calculation in 200 seconds that would take classical supercomputers 10,000 years. Proof that quantum advantage is real.
milestone
2022
NSA mandates post-quantum transition
US National Security Agency issues guidance requiring all National Security Systems to migrate to PQC by 2035. CISA follows with similar enterprise guidance.
regulation
2024
NIST publishes FIPS 203, 204, 205 — PQC standards finalised
CRYSTALS-Kyber (ML-KEM), CRYSTALS-Dilithium (ML-DSA), and SPHINCS+ (SLH-DSA) become the first post-quantum cryptographic standards. Migration is now mandatory for US federal systems and expected for regulated industries.
standard action required
2026
DORA & NIS2 enforcement — quantum risk in scope
EU Digital Operational Resilience Act and Network & Information Security Directive 2 enforcement tightens. Quantum cryptographic risk increasingly expected in cyber resilience assessments for financial and critical infrastructure sectors.
compliance
2027–29
Migration deadline for long-lived sensitive data
Data encrypted today that must remain confidential past 2030 needs PQC protection now. Healthcare records, legal documents, financial history, IP — any data with a 10+ year confidentiality requirement is at risk from harvest-now-decrypt-later attacks.
critical window
2030+
Cryptographically Relevant Quantum Computer projected
IBM, Google, and national programmes (US, China, EU) converging on fault-tolerant quantum computers with millions of physical qubits. NSA, ETSI, and NIST all cite 2030–2035 as the planning horizon. All RSA and ECC keys immediately vulnerable.
existential risk PQC = solution
Why QuantShield

We sit at the intersection of quantum physics, cryptography, and enterprise security

🔬
Deep quantum expertise
Our consultants hold expertise in quantum information theory, post-quantum cryptography, and NIST standardisation — not just cybersecurity generalists who've read a white paper.
🗺️
Proven migration methodology
Our four-phase methodology — Discover, Assess, Strategize, Migrate — has been validated across financial services, healthcare, and critical infrastructure. We deliver the crypto asset register in weeks, not months.
⚖️
Vendor-agnostic advice
We're not reselling hardware or software. Our recommendations — Kyber, Dilithium, ID Quantique, liboqs — are based on your requirements and NIST standards, not commercial relationships.
🎯
Board-to-terminal fluency
We translate quantum mechanics into board-level risk narratives and into developer-ready implementation specs. The same team that briefs your CISO writes the migration playbook for your engineers.
🛡️
Regulatory alignment
Deep familiarity with NIST FIPS 203/204/205, NSA CNSA 2.0, DORA, NIS2, and sector-specific guidance. Our deliverables are structured to map directly to compliance evidence requirements.
Rapid time-to-value
The Quantum Readiness Assessment delivers a crypto asset register and risk heat map in 4–6 weeks. You have a board-ready picture of your exposure within a month of engagement start.

Ready to know where your quantum risk lives?

Book a no-obligation 30-minute Quantum Threat Briefing. We'll walk through the threat landscape, your industry's specific exposure, and what a readiness assessment would cover for your organisation.

No commitment. 30 minutes. Your quantum exposure, mapped.