VDict - Definition of cryptography

Computing (FOLDOC) dictionary (also found in English - Vietnamese, English - English (Wordnet), )

cryptography

cryptography 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

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

(2000-01-16)

Related search result for "cryptography"

Words pronounced/spelled similarly to "cryptography":
cryptography criptography
Words contain "cryptography":
cryptography private-key cryptography public-key cryptography Public-Key Cryptography Standards symmetric key cryptography
Words contain "cryptography" in its definition in Computing (FOLDOC) dictionary:
symmetric key cryptography private-key cryptography one-way function RSA Data Security, Inc. encryption cryptography decryption cryppie RSA codes more...