What is post-quantum cryptography?
Post-quantum cryptography (PQC) is a new generation of cryptographic algorithms designed to remain secure even against quantum computers.
Why is it needed?
Many current systems rely on mathematical problems that are hard for classical computers: factoring large numbers (RSA) and the discrete logarithm (ECC and Diffie-Hellman). A sufficiently powerful quantum computer solves them with Shor's algorithm, breaking the cryptography that protects the internet today.
What is Q-Day?
It is the moment when a quantum computer will be able to break today's public-key cryptography. Google has marked 2029 as the year of the definitive cryptographic break: the transition must start today.
What is "harvest now, decrypt later"?
It is an attack already underway: adversaries capture encrypted information today to store it and decrypt it once quantum technology is powerful enough. Long-lived data (financial, clinical, government) is already at risk.
What is a CBOM?
The Cryptography Bill of Materials is the organization's cryptographic inventory: how many RSA keys exist, where they are and which application depends on them. It is the first step CISA and NIST require before touching a single algorithm.
What is crypto-agility?
The ability to change cryptographic algorithms, keys and certificates without rewriting applications or stopping operations. It is what makes it possible to migrate to post-quantum today and change again tomorrow without another project. Every Cyte encryption product, starting with Web-Armor, ships with it by default.
Are Cyte's products already post-quantum?
Yes. Cyte builds its own cryptography and has run the NIST standards (ML-KEM, ML-DSA) in banking production since 2023. Web-Armor encrypts in hybrid ML-KEM mode over TLS; Crypto-Vault, Crypto-Vault Ultra and Fields-Encrypt use NIST-approved algorithms; Notyfind builds the CBOM and renews post-quantum certificates.
Post-quantum cryptography
Post-quantum cryptography (PQC) is a new generation of cryptographic algorithms designed to remain secure even against quantum computers.
Why is it needed? Many current systems rely on mathematical problems that are hard for ordinary computers:
- Factoring large numbers → RSA
- Discrete logarithm → ECC and Diffie-Hellman
CBOM (Cryptography Bill of Materials)
The CBOM is an organization's cryptographic inventory: the structured, machine-readable list of every certificate, key, algorithm, protocol and library in use, with the system that depends on each one and the data it protects. It is to cryptography what the SBOM is to software, and its standard format is CycloneDX 1.6.
It is the first step of any post-quantum migration: nobody migrates what they do not know they have. Notyfind builds it and keeps it alive.
Crypto-agility
Crypto-agility (also cryptographic agility) is the ability to change cryptographic algorithms, parameters, keys and certificates without rewriting applications or stopping operations. An organization is crypto-agile when the algorithm is a configuration parameter and not a line of code.
It is the condition that makes post-quantum migration possible and the one that keeps the next migration from becoming another emergency. Every Cyte encryption product, starting with Web-Armor, ships with it by default.
Quantum computing
Quantum computing represents a new technological era capable of solving problems that are practically impossible for traditional computers today. Based on quantum physics principles such as superposition and entanglement, this technology promises to transform fields like artificial intelligence, medicine, cybersecurity, finance and scientific simulation.
Rather than a replacement for classical computing, quantum computing will be a specialized tool to tackle problems of enormous complexity and accelerate the technological development of the future.
Phishing
Phishing is a very common cyberattack technique that uses emails, messages or calls to deceive people. It relies on social engineering, where attackers impersonate trusted organizations to manipulate their victims. The goal is to make the user slip up: visiting fraudulent websites, downloading infected files or handing over sensitive data such as banking credentials.
Q-Day
It is the name given to the moment when a sufficiently advanced quantum computer can break the encryption systems used today across the internet, banks, governments and digital communications.
Today many systems use algorithms such as:
- RSA
- ECC (Elliptic Curve Cryptography)
- Diffie-Hellman
These work because traditional computers would take thousands of years to solve certain mathematical problems. A quantum computer, however, could solve them far faster using algorithms such as Shor's.
Ransomware
Ransomware is a type of malicious software that works like a digital kidnapping: once it infects a device, it encrypts the files or blocks access to the system so they cannot be used. The attackers then demand a ransom payment (usually in cryptocurrency) in exchange for the unlock key, threatening to erase the information permanently or leak it online. Despite the pressure, experts recommend not paying, since it does not guarantee data recovery and only encourages criminals to keep attacking.