Vocabulary Review Unit 4

Big Data

• a broad term for datasets so large or complex that traditional data processing applications are inadequate.

• a predication made by Gordon Moore in 1965 that computing power will double every 1.5-2 years, it has remained more or less true ever since.

• A business/corporate term for a one-page document that summarizes a large issue, topic or plan.

• a technique for encryption that shifts the alphabet by some number of characters

Moore's Law

• a predication made by Gordon Moore in 1965 that computing power will double every 1.5-2 years, it has remained more or less true ever since.

• a broad term for datasets so large or complex that traditional data processing applications are inadequate.

• the generic term for a technique (or algorithm) that performs encryption

• When you attempt to decode a secret message without knowing all the specifics of the cipher, you are trying to "crack" the encryption.

Caesar Cipher

• a technique for encryption that shifts the alphabet by some number of characters

• the generic term for a technique (or algorithm) that performs encryption

• When you attempt to decode a secret message without knowing all the specifics of the cipher, you are trying to "crack" the encryption.

• a process that reverses encryption, taking a secret message and reproducing the original plain text

Cracking encryption

• When you attempt to decode a secret message without knowing all the specifics of the cipher, you are trying to "crack" the encryption.

• a process that reverses encryption, taking a secret message and reproducing the original plain text

• a process of encoding messages to keep them secret, so only "authorized" parties can read it.

• an encryption technique that maps each letter of the alphabet to a randomly chosen other letters of the alphabet.

Decryption

• a process that reverses encryption, taking a secret message and reproducing the original plain text

• a process of encoding messages to keep them secret, so only "authorized" parties can read it.

• an encryption technique that maps each letter of the alphabet to a randomly chosen other letters of the alphabet.

• a technique for encryption that shifts the alphabet by some number of characters

Encryption

• a process of encoding messages to keep them secret, so only "authorized" parties can read it.

• an encryption technique that maps each letter of the alphabet to a randomly chosen other letters of the alphabet.

• the generic term for a technique (or algorithm) that performs encryption

• a process that reverses encryption, taking a secret message and reproducing the original plain text

Random Substitution Cipher

• an encryption technique that maps each letter of the alphabet to a randomly chosen other letters of the alphabet.

• a technique for encryption that shifts the alphabet by some number of characters

• a technique for encryption that shifts the alphabet by some number of characters

• When you attempt to decode a secret message without knowing all the specifics of the cipher, you are trying to "crack" the encryption.

Computationally Hard

• a "hard' problem for a computer is one in which it cannot arrive at a solution in a reasonable amount of time.

• A business/corporate term for a one-page document that summarizes a large issue, topic or plan.

• a broad term for datasets so large or complex that traditional data processing applications are inadequate.

• a predication made by Gordon Moore in 1965 that computing power will double every 1.5-2 years, it has remained more or less true ever since.

asymmetric encryption

• used in public key encryption, it is scheme in which the key to encrypt data is different from the key to decrypt.

• a mathematical operation that returns the remainder after integer division. Example: 7 MOD 4 = 3

• In an asymmetric encryption scheme the decryption key is kept private and never shared, so only the intended recipient has the ability to decrypt a message that has been encrypted with a public key.

• Used prevalently on the web, it allows for secure messages to be sent between parties without having to agree on, or share, a secret key. It uses an asymmetric encryption scheme in which the encryption key is made public, but the decryption key is kept private.

modulo

• a mathematical operation that returns the remainder after integer division. Example: 7 MOD 4 = 3

• used in public key encryption, it is scheme in which the key to encrypt data is different from the key to decrypt.

• In an asymmetric encryption scheme the decryption key is kept private and never shared, so only the intended recipient has the ability to decrypt a message that has been encrypted with a public key.

• Used prevalently on the web, it allows for secure messages to be sent between parties without having to agree on, or share, a secret key. It uses an asymmetric encryption scheme in which the encryption key is made public, but the decryption key is kept private.