Security Strength Calculator
Calculate overall cryptographic security strength, equivalent key lengths, and security lifetime estimates.
Inputs
bits
bits
bits
Results
Overall Security Level
128 bits
Security Lifetime
16,777,216 years
Symmetric Security128 bits
Asymmetric Security1,024 bits
Hash Security128 bits
Equivalent RSA Key3,072 bits
Overall Security Level
128 bits
Security Lifetime
16,777,216 years
How to Use This Calculator
- Start by filling in the input fields below. Results update instantly as you type, so you can experiment with different values to see how they affect the outcome.
- Symmetric Key Length — Symmetric encryption key length (AES, etc.) Accepts values from 64 bits to 512 bits (default: 128 bits).
- Asymmetric Key Length — Asymmetric key length (RSA, etc.) Accepts values from 512 bits to 16,384 bits (default: 2,048 bits).
- Hash Length — Hash function output length Accepts values from 128 bits to 512 bits (default: 256 bits).
- Once all inputs are set, review your results in the Results panel. Here's what each output means:
- Overall Security Level — shown as a numeric value. This is the primary result of this calculator.
- Security Lifetime — shown as a numeric value. This is the primary result of this calculator.
- Symmetric Security — shown as a numeric value.
- Asymmetric Security — shown as a numeric value.
- Hash Security — shown as a numeric value.
- Equivalent RSA Key — shown as a numeric value.
- Explore the related calculators below if you need deeper analysis or want to approach this topic from a different angle.
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Formula
Overall Security = min(Symmetric, Asymmetric, Hash)Related Calculators
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