Is a 64-Character Password Strong Enough?
A 64-character password with mixed types has about 420 bits of entropy—far beyond any conceivable brute-force attack. It is used for HSM passphrases, root CA backup, and maximum-assurance secrets.
| Length | Entropy | Estimated Crack Time |
|---|---|---|
| 64 characters | ~420 bits | Effectively infinite |
64-Character Password Examples
When to Use a 64-Character Password
Use 64-character passwords for HSM passphrases, root CA or key backup, and offline backup secrets. Ensure you have secure, often offline, storage for such long secrets.
How to Generate a Strong 64-Character Password
Click Generate above. This page is set to 64 characters. Copy the result directly into your HSM, vault, or secure backup—never store in code or unencrypted config.