cryptosystem

Noun

Meaning

cryptosystem (plural cryptosystems)

A system of cryptography.

Synonyms

Examples

Academic attacks are often against weakened versions of a cryptosystem, such as a block cipher or hash function with some rounds removed. Source: Internet

A cryptosystem is called semantically secure if an attacker cannot distinguish two encryptions from each other even if the attacker knows (or has chosen) the corresponding plaintexts. Source: Internet

Most are used in hybrid cryptosystems for reasons of efficiency – in such a cryptosystem, a shared secret key (" session key ") is generated by one party, and this much briefer session key is then encrypted by each recipient's public key. Source: Internet

In WWII, for example, the Japanese Navy, by poor practice, identified a key person's movement over a low-security cryptosystem. Source: Internet

Furthermore, it might only reveal a small amount of information, enough to prove the cryptosystem imperfect but too little to be useful to real-world attackers. Source: Internet

In 1979, Michael O. Rabin published a related cryptosystem that is probably secure as long as the factorization of the public key remains difficult – it remains an assumption that RSA also enjoys this security. Source: Internet

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