All Keys Generator Random Security-encryption-key-generator.aspx Apr 2026

Except, it’s not done. That is a disaster waiting to happen.

In the world of cryptography, . We are creatures of pattern. If you ask a human to create a "random" 32-character string, they will likely avoid repeating characters, never use the same letter twice in a row, and probably start with a letter in the middle of the alphabet. Except, it’s not done

// The ONLY way to generate a secure key in .NET using System.Security.Cryptography; public static string GenerateSecureKey(int byteLength, bool urlSafe = false) { // RandomNumberGenerator is the successor to RNGCryptoServiceProvider using (var rng = RandomNumberGenerator.Create()) { byte[] bytes = new byte[byteLength]; rng.GetBytes(bytes); // This pulls from Windows CryptGenRandom We are creatures of pattern

Use a dedicated, cryptographically secure —specifically one built on RNGCryptoServiceProvider or RandomNumberGenerator . Whether you are generating an AES-256 key for a database column or an HMAC secret for a JWT, the entropy source is the only thing that stands between your data and a breach. Whether you are generating an AES-256 key for

Attackers know this. They have dictionaries full of "human-random" guesses.