Term
Advanced Encryption Standard (AES) 

Definition
A symmetric cipher that was approved by the NIST in late 2000 as a replacement for DES. 


Term

Definition
Procedures based on a mathematical formula used to encrypt and decrypt the data. 


Term
asymmetric cryptographic algorithm 

Definition
Cryptography that uses two mathematically related keys. 


Term

Definition
A cipher that manipulates an entire block of plaintext at one time. Blowfish A block cipher that operates on 64bit blocks and can have a key length from 32 to 448 bits. 


Term

Definition
Data that has been encrypted. 


Term

Definition


Term

Definition
The science of transforming information into a secure form so that unauthorized persons cannot access it. 


Term
Data Encryption Standard (DES) 

Definition
A symmetric block cipher that uses a 56bit key and encrypts data in 64bit blocks. 


Term

Definition
The process of changing ciphertext into plaintext. 


Term

Definition
A key exchange that requires all parties to agree upon a large prime number and related integer so that the same key can be separately created. 


Term
DiffieHellman Ephemeral (DHE) 

Definition
A DiffieHellman key exchange that uses different keys. 


Term

Definition
The unique digital fingerprint created by a oneway hash algorithm. 


Term

Definition
An electronic verification of the sender. 


Term
elliptic curve cryptography (ECC) 

Definition
An algorithm that uses elliptic curves instead of prime numbers to compute keys. 


Term

Definition
A DiffieHellman key exchange that uses elliptic curve cryptography instead of prime numbers in its computation. 


Term

Definition
The process of changing plaintext into ciphertext. 


Term

Definition
A temporary key that is used only once before it is discarded. 


Term

Definition
Free and opensource software that is commonly used to encrypt and decrypt data. 


Term
Hardware Security Module (HSM) 

Definition
A secure cryptographic processor. 


Term

Definition
An algorithm that creates a unique digital fingerprint. 


Term
Hashed Message Authentication Code (HMAC) 

Definition
A hash function that is applied to both the key and the message. 


Term

Definition
Exchanging secure information within normal communication channels. 


Term

Definition
A mathematical value entered into a cryptographic algorithm to produce encrypted data. 


Term

Definition
The process of sending and receiving secure cryptographic keys. 


Term

Definition
A common hash algorithm with several different versions. 


Term

Definition
The current version of MD. 


Term

Definition
The process of proving that a user performed an action. 


Term

Definition
Combining plaintext with a random key to create ciphertext that cannot be broken mathematically. 


Term

Definition
Exchanging secure information outside the normal communication channels. 


Term

Definition
Public key systems that generate random public keys that are different for each session. 


Term

Definition
Cleartext data that is to be encrypted and decrypted by a cryptographic algorithm. 


Term
Pretty Good Privacy (PGP) 

Definition
A commercial product that is commonly used to encrypt files and messages. 


Term

Definition
An asymmetric encryption key that does have to be protected. 


Term

Definition
Cryptographic algorithms that use a single key to encrypt and decrypt a message. 


Term

Definition
An asymmetric encryption key that does not have to be protected. 


Term

Definition
Cryptography that uses two mathematically related keys. 


Term

Definition
A type of asymmetric cryptography that attempts to use the unusual and unique behavior of microscopic objects to enable users to securely develop and share keys. 


Term
RACE Integrity Primitives Evaluation Message Digest (RIPEMD) 

Definition
A hash algorithm that uses two different and independent parallel chains of computation and then combines the result at the end of the process. 


Term

Definition
An RC stream cipher that will accept keys up to 128 bits in length. 


Term

Definition
The most common asymmetric cryptography algorithm. 


Term
Secure Hash Algorithm (SHA) 

Definition
A secure hash algorithm that creates more secure hash values than Message Digest (MD) algorithms. 


Term

Definition
A cryptographic function that applies a process on the input that has been padded with additional characters until all characters are used. 


Term

Definition
Hiding the existence of data within another type of file. 


Term

Definition
An algorithm that takes one character and replaces it with one character. 


Term
symmetric cryptographic algorithm 

Definition
Encryption that uses a single key to encrypt and decrypt a message. 


Term
Triple Data Encryption Standard (3DES) 

Definition
A symmetric cipher that was designed to replace DES. 


Term
Trusted Platform Module (TPM) 

Definition
A chip on the motherboard of the computer that provides cryptographic services. 


Term

Definition
A derivation of the Blowfish algorithm that is considered to be strong. 


Term

Definition
Cryptography that can be applied to entire disks. 

