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Noun
1. cryptography; cryptographic theory
Wikipedia definition
2. CryptographyCryptography is the practice and study of techniques for secure communication in the presence of third parties. More generally, it is about constructing and analyzing protocols that overcome the influence of adversaries and which are related to various aspects in information security such as data confidentiality, data integrity, and authentication. Modern cryptography intersects the disciplines of mathematics, computer science, and electrical engineering.
Read “Cryptography” on English Wikipedia
Read “暗号理論” on Japanese Wikipedia
Read “Cryptography” on DBpedia

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