From the course: CompTIA Data Systems (DS0-001) Cert Prep
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Encrypting data
From the course: CompTIA Data Systems (DS0-001) Cert Prep
Encrypting data
- Data encryption is one of the fundamental components of data protection. We encrypt data with a key that protects it from prying eyes. An encryption key is just a series of bits used during the encoding process to make data unreadable. Once it's encrypted, you can only access the data by decrypting it with the appropriate decryption key. If you lose that key, any data encrypted becomes useless. To keep data secure, you must encrypt it at rest, as well as in transit. Data at rest is data that exists in permanent storage. The two most common locations for data at rest are databases and flat files. Databases have sophisticated access control mechanisms as part of the database software. Because databases centralize data and require a team of technologists to operate, they're comparatively easy to secure. For example, both Oracle and Microsoft have Transparent Data Encryption, or TDE technology, as part of their database offerings. TDE ensures that the database files and log files are…
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