PQCn

PQCn is a term that can refer to several different concepts, primarily within the fields of quantum computing and cryptography. In the context of post-quantum cryptography (PQC), "PQCn" often denotes a specific cryptographic algorithm or a family of algorithms designed to be resistant to attacks from quantum computers. Quantum computers, when sufficiently powerful, are expected to break many of the public-key cryptosystems currently in widespread use, such as RSA and ECC. PQC algorithms aim to provide security against these future quantum threats. The "n" in PQCn could potentially represent a specific parameter, version number, or a designated identifier within a research or standardization effort.

Alternatively, "PQCn" might appear in discussions related to the National Institute of Standards and Technology (NIST) PQC standardization process. NIST has been evaluating and selecting post-quantum cryptographic algorithms to standardize for future use. In this context, "PQCn" could be an informal shorthand for a particular candidate algorithm or a group of algorithms being considered in the various rounds of the NIST process. Understanding the specific context in which "PQCn" is used is crucial for deciphering its precise meaning. Research papers, technical reports, and cybersecurity forums are common places where such terminology might be encountered.