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cryptography    
n. 密碼使用法,密碼

密碼使用法,密碼

cryptography
密碼術

cryptography
密碼學

cryptography
n 1: the science of analyzing and deciphering codes and ciphers
and cryptograms [synonym: {cryptanalysis}, {cryptanalytics},
{cryptography}, {cryptology}]
2: act of writing in code or cipher [synonym: {cryptography},
{coding}, {secret writing}, {steganography}]

Cryptography \Cryp*tog"ra*phy\ (-f?), n. [Cf. F. cryptographie.]
1. The act or art of writing in code or secret characters;
also, secret characters, codes or ciphers, or messages
written in a secret code.
[1913 Webster PJC]

2. The science which studies methods for encoding messages so
that they can be read only by a person who knows the
secret information required for decoding, called the key;
it includes {cryptanalysis}, the science of decoding
encrypted messages without possessing the proper key, and
has several other branches; see for example
{steganography}.
[PJC]

48 Moby Thesaurus words for "cryptography":
cipher, code, coded message, coup de plume, criticism,
cryptanalysis, cryptoanalysis, cryptoanalytics, cryptogram,
cryptograph, cryptographer, cryptology, diagnostics, engrossment,
epigraphy, exegetics, hermeneutics, ink spilling, inkslinging,
inscription, invisible ink, lettering, lexicography,
literary criticism, macrography, metoposcopy, micrography,
oneirology, paleography, pathognomy, pen, pen-and-ink,
pencil driving, physiognomics, physiognomy, scrivenery, scrivening,
secret language, secret writing, semeiology, semeiotics,
sympathetic ink, symptomatology, textual criticism, tropology,
typewriting, typing, writing

The practise and study of {encryption} and
{decryption} - encoding data so that it can only be decoded by
specific individuals. A system for encrypting and decrypting
data is a cryptosystem. These usually involve an {algorithm}
for combining the original data ("{plaintext}") with one or
more "keys" - numbers or strings of characters known only to
the sender and/or recipient. The resulting output is known as
"{ciphertext}".

The security of a cryptosystem usually depends on the secrecy
of (some of) the keys rather than with the supposed secrecy of
the {algorithm}. A strong cryptosystem has a large range of
possible keys so that it is not possible to just try all
possible keys (a "{brute force}" approach). A strong
cryptosystem will produce ciphertext which appears random to
all standard statistical tests. A strong cryptosystem will
resist all known previous methods for breaking codes
("{cryptanalysis}").

See also {cryptology}, {public-key encryption}, {RSA}.

{Usenet} newsgroups: {news:sci.crypt},
{news:sci.crypt.research}.

{FAQ} {MIT
(ftp://rtfm.mit.edu/pub/usenet/news.answers/cryptography-faq/)}.

{Cryptography glossary
(http://io.com/~ritter/GLOSSARY.HTM#BruteForceAttack)}.

{RSA cryptography glossary
(http://rsasecurity.com/rsalabs/faq/glossary.html)}.

{Cryptography, PGP, and Your Privacy
(http://draco.centerline.com:8080/~franl/crypto.html)}.

(2000-01-16)

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英文字典中文字典相關資料:
  • Cryptography - Wikipedia
    Cryptography, or cryptology, [1] is the practice and study of techniques for secure communication in the presence of adversarial behavior [2] More generally, cryptography is about constructing and analyzing protocols that prevent third parties or the public from reading private messages [3]
  • What is cryptography? - IBM
    Cryptography is the practice of developing and using coded algorithms to protect and obscure transmitted information
  • Cryptography and its Types - GeeksforGeeks
    Cryptography is the science of protecting information using mathematical techniques to ensure confidentiality, integrity, and authentication It transforms readable data into unreadable form, preventing unauthorized access and tampering
  • 8 Cryptography Techniques: Everything You Need to Know
    The cryptography encryption algorithm or cipher used for data confidentiality and integrity in a computer system Using an encryption key, it converts plaintext into ciphertext, and sent over communication channels such as the Internet, to a destination where the receiver will decrypt it
  • What is Cryptography? Definition, Types and Techniques | TechTarget
    Types of cryptography Single-key or symmetric-key encryption algorithms create a fixed length of bits known as a block cipher with a secret key that the creator sender uses to encipher data (encryption) and the receiver uses to decipher it One example of symmetric-key cryptography is the Advanced Encryption Standard (AES)
  • Cryptography | NIST
    Cryptography uses mathematical techniques to protect the security of information As our electronic networks grow increasingly open and interconnected, it is crucial to have strong, trusted cryptographic standards and guidelines, algorithms and encryption methods that can be used for e-commerce transactions, mobile device conversations and
  • cryptography · PyPI
    cryptography is a package which provides cryptographic recipes and primitives to Python developers
  • What is Cryptography? Definition, Importance, Types | Fortinet
    Cryptography is the process of hiding or coding information so only the intended recipient can read a message Discover how cryptography works and the potential risks it poses
  • Online Cryptography Course by Dan Boneh - Stanford University
    Online Cryptography Course Instructor: Dan Boneh, Stanford University Online cryptography course preview: This page contains all the lectures in the free cryptography course To officially take the course, including homeworks, projects, and final exam, please visit the course page at Coursera
  • Cryptography 101 with Alfred Menezes – Video lectures, notes, and . . .
    Video lectures, notes, and exercises in all areas of applied cryptography





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