cryptography – מילון אנגלי-אנגלי
cryptography
n.
writing or deciphering of secret codes
Cryptography
Cryptography or
cryptology; from
Greek kryptós, "hidden, secret"; and
graphein, "writing", or
-logia, "study", respectively is the practice and study of techniques for
secure communication in the presence of third parties called
adversaries. These adversaries are often referred to as Eve in cryptography, while the sender and recipient of messages are called Alice and Bob respectively. More generally, cryptography is about constructing and analyzing
protocols that prevent third parties or the public from reading private messages; various aspects in
information security such as data
confidentiality,
data integrity,
authentication, and
non-repudiation are central to modern cryptography. Modern cryptography exists at the intersection of the disciplines of
mathematics,
computer science, and
electrical engineering. Applications of cryptography include
ATM cards,
computer passwords, and
electronic commerce.
cryptography
Noun
1. the science of analyzing and deciphering codes and ciphers and cryptograms
(synonym) cryptanalysis, cryptanalytics, cryptology
(hypernym) science, scientific discipline
2. act of writing in code or cipher
(synonym) coding, secret writing
(hypernym) writing, committal to writing
(hyponym) encoding, encryption
Cryptography
(n.)
The act or art of writing in secret characters; also, secret characters, or cipher.
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter.
About
cryptography
1. [The] principles, means, and methods for rendering plain
information unintelligible and for restoring encrypted information to intelligible form. [
NIS]
2. The branch of
cryptology that treats of the principles, means, and methods of designing and using cryptosystems.
