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Security Math – NIST Key Size Equivalence
x402
Security Math – NIST Key Size Equivalence is a paid API for AI agents from security-math.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-21).
Returns NIST SP 800-57 comparable security strengths for RSA, DH, DSA, ECC, AES, TDEA, and hash algorithms, including 2030 compliance status.
Price / call$0.02
Success—
StatusUnknown
How this service works
NIST SP 800-57 comparable strengths: RSA, DH, DSA, ECC and AES key sizes to security bits, hash strengths, 2030 status.
Output
Returns the security strength in bits for the given algorithm and key/hash size, equivalent key sizes across RSA, ECC, DH/DSA (FFC), and symmetric algorithms, a 2030 compliance verdict, status label, reasons for any degraded rating, and a disclaimer referencing NIST SP 800-57. May also include a comparison table of all standard strength levels.
Example use cases
Verify RSA key strength for compliance audit
“I need to know whether our RSA-3072 keys meet NIST SP 800-57 requirements for use through 2030 — can you check the security bit strength and 2030 status?”
Find ECC equivalent of target security level
“What ECC key size gives me 128-bit security strength, and what RSA modulus size is that equivalent to according to NIST?”
Assess SHA-256 hash strength for TLS policy
“How many security bits does SHA-256 provide, and what does NIST SP 800-57 say about whether it's acceptable for signing beyond 2030?”
Technical details
Endpoint
GEThttps://security-math.x402tookit.com/key-size-equivalence?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need authoritative NIST SP 800-57 key-strength comparisons across cryptographic algorithms — especially for compliance checks, security policy decisions, or comparing RSA/ECC/AES/hash equivalences. Prefer it over general cryptography references when you need structured, machine-readable output with 2030 status verdicts.
Side effects
- Missing required query parameters 'algorithm' or 'size' returns an error
- Unsupported algorithm name returns an error or null fields
- Invalid size value for the chosen algorithm returns a null or degraded result
- Payment not included or insufficient USDC triggers 402 Payment Required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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