![]() When discussing brute force attack protection, understanding just what different key lengths mean is essential. This attack is guaranteed to succeed (eventually) and (ideally) should be the fastest way to break an encryption algorithm. Brute Force Attack ProtectionĪ brute force key guessing attack is where an attacker tries each potential secret key until the right one is found. From a security perspective, a 256-bit secret key is obviously better, but does it really matter which of the two options you choose? This article walks through some of the main security considerations for AES-128 and AES-256. ![]() The last three digits represent the length of the secret key – think of it like the number of teeth in a physical key. ![]() When discussing symmetric encryption algorithms – like the Advanced Encryption Standard (AES) – you may have been considering using AES-128 or AES-256. 128 or 256 bit Encryption: Which Should I Use? ![]()
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