Information-theoretic security

A cryptosystem is information-theoretically secure if its security derives purely from information theory. That is, it cannot be broken even when the adversary has unlimited computing power. The adversary simply does not have enough information to break the encryption, so these cryptosystems are considered cryptanalytically unbreakable.

单词	Perfect secrecy
释义	Perfect secrecy 英语百科 Information-theoretic security A cryptosystem is information-theoretically secure if its security derives purely from information theory. That is, it cannot be broken even when the adversary has unlimited computing power. The adversary simply does not have enough information to break the encryption, so these cryptosystems are considered cryptanalytically unbreakable.
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Perfect secrecy

Information-theoretic security