// THREAT DETECTION AND DATA PRIVACY TERM

Cryptography

Cryptography is the practice of protecting information and communications through the use of codes, so that only those for whom the information is intended can read and process it. It transforms readable data into an unreadable format using a secret key, and then back again.

Cryptography — illustration from Wikipedia
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TECHNICAL DEFINITION

Cryptography is a core cybersecurity discipline involving the study and application of mathematical techniques and algorithms, such as symmetric (e.g., AES) and asymmetric (e.g., RSA) encryption, to ensure fundamental security principles like confidentiality, integrity, authentication, and non-repudiation for data at rest and in transit.

BACKGROUND

In computer security, Capture the Flag (CTF) is an exercise in which participants attempt to find text strings, called "flags", which are secretly hidden in purposefully vulnerable programs or websites. They can be used for both competitive or educational purposes. In two main variations of CTFs, participants either steal flags from other participants or from organizers. A mixed competition combines these two styles. Competitions can include hiding flags in hardware devices, they can be both online or in-person, and can be advanced or entry-level. The game is inspired by the traditional outdoor sport with the same name. CTFs are used as a tool for developing and refining cybersecurity skills, making them popular in both professional and academic settings.

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SYNONYMS & ALIASES

  • encryption
  • cryptology
  • ciphering
  • code-making
  • secret writing
  • data scrambling

USAGE NOTE

While often used interchangeably with encryption, cryptography is the broader field of study, whereas encryption is the specific process of encoding data.

DEVELOPERS

Organizations developing technology related to Cryptography.

  • Thales Group

    A global leader in advanced technologies, Thales develops cryptographic solutions, including hardware security modules (HSMs) and encryption software, for data protection in sectors like defense, finance, and critical infrastructure.

  • BAE Systems

    A multinational defense, security, and aerospace company. Its Applied Intelligence division develops and implements advanced cryptographic technologies to secure sensitive government and commercial communications and data.

  • SandboxAQ

    Spun out of Alphabet Inc., SandboxAQ focuses on the convergence of AI and Quantum technologies. They provide post-quantum cryptography (PQC) solutions to help enterprises and government agencies migrate to crypto-agile systems resilient against quantum threats.

  • PQShield

    A cybersecurity company specializing in post-quantum cryptography. They provide quantum-resistant cryptographic software and hardware IP for use in hardware security modules, IoT devices, and secure communication systems.

  • National Security Agency (NSA)

    A U.S. intelligence agency responsible for signals intelligence and information assurance. The NSA is a leading developer of cryptographic algorithms and standards to protect U.S. national security systems and is actively involved in the transition to post-quantum cryptography.

  • Zama

    An open-source cryptography company focused on developing and promoting Fully Homomorphic Encryption (FHE). Their technology allows for processing data while it remains encrypted, enabling new privacy-preserving applications in blockchain and AI.

  • Infineon Technologies

    A German semiconductor manufacturer that produces a wide range of security microcontrollers. These chips incorporate advanced cryptographic accelerators and secure memory for applications like payment cards, electronic passports, and trusted platform modules (TPMs).

  • Idemia

    A multinational technology company specializing in identity and security solutions. Idemia leverages cryptography for secure biometric identification, encrypted digital credentials, and secure payment technologies for governments and private enterprises.

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