What Is Encryption in Computer Security?

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Encryption is the process of scrambling data and information into a form which can only be decoded and understood by those who have the keys. This can be accomplished using various mathematic models and is used daily to protect the information and data that consumers and businesses use in their daily lives.

Modern encryption algorithms play a crucial part in ensuring the confidentiality of data stored on computers or transmitted over networks like the internet. It also provides security measures like authentication (verifying the origin of a message) as well as integrity (ensuring that it isn’t altered) and anti-repudiation.

Algorithms are used to convert plaintext into ciphertext. The ciphertext is only transformed back into plain text using a decryption key which is a secret string of numbers or passwords that a sender and receiver agree on. The more secure the cryptographic keys, the more difficult it is for third-party users to decipher them using brute force methods.

Certain privacy and security regulations require the use of strong encryption in order to ensure that personal information stays private and safe. Many people and companies use encryption to protect their files, folders and entire computers using software programs like 7-Zip and CertainSafe. They can also secure the entire hard drive on the cloud using virtual private networks. Many companies offer multiple encryption solutions to provide the strongest protection.

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