Encrypting Database Data + Cryptographic Keys + Ciphers

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6 Terms

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Database encryption

targets data at the database level. There are two primary types of database encryption:

  • Transparent Data Encryption (TDE), which encrypts the entire database

  • Column-level Encryption (CLE), which allows for specific columns within tables to be encrypted

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Record-level encryption

is a more granular form of database encryption. It allows individual records within a database to be encrypted

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Key length

is nothing more than the number of binary bits (0s and 1s) in the key

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The key space

is the range between the key that has all 0s and the key that has all 1s

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Block ciphers

operate on “chunks”, or blocks, of a message and apply the encryption algorithm to an entire message block at the same time

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Stream ciphers

operate on once character or bit of a message (or data stream) at a time