Encryption

DEFINITION of Encryption

Data encryption is the most common method of keeping sensitive information secure, and thousands of businesses around the globe use encryption to protect credit card data, personally identifiable information, financial account numbers and more.

The strength of the encryption is based on the algorithm it uses to secure the data and a binary key. When data needs to be read back, the code is decrypted using either the same key or another key depending on the type of encryption used.

BREAKING DOWN Encryption

Everyone who has used the Internet has used encryption. Nearly every computing device we interact with on a daily basis utilizes some form of encryption technology. From smartphones (which can often have their data encrypted) to tablets, desktop, and laptops. Simply put, encryption is everywhere.

When talking about encryption, it’s important to make the distinction that all modern encryption technology is derived from cryptography. Cryptography is – at its core – the act of creating and (attempting to) decipher a code. While electronic encryption is relatively new in the grander scheme of things, cryptography is a science that dates back to ancient Greece.

Modern encryption technology uses more sophisticated algorithms as well as larger key sizes in order to better conceal encrypted data. The larger the key size, the more possible combinations that a brute force attack would have to run in order to successfully find decrypts the ciphertext.

For example, last century 40-bit encryption, which is a key with 240 possible permutations, and 56-bit encryption was standard. Most modern encryptions use a minimum of a 128-bit key, with some using 256-bit keys or greater. To put that into perspective, cracking a 128-bit key would require a brute force attack to test over 339,000,000,000,000,000,000,000,000,000,000,000 possible key combinations. As key size continues to improve, the length of time it takes to crack an encryption using a brute force attack skyrockets.

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2022-12-12 • Updated

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