agent402.tools PBKDF2 Key Derivation

x402

agent402.tools PBKDF2 Key Derivation is a paid API for AI agents from agent402.tools, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Derives a cryptographic key from a password using PBKDF2 (RFC 8018), returning the hex-encoded key and all parameters used.

Price / call$0.001

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How this service works

Derive a cryptographic key from a password using PBKDF2 (RFC 8018). Returns the hex-encoded derived key along with all parameters used, so you can store or verify them later. Supports sha1, sha256, sha384, sha512 digests.

Output

Returns a hex-encoded derived key along with all parameters used (salt, digest, keyLength, iterations), allowing the caller to store or re-verify the key later.

Example use cases

Example prompt

“Derive a PBKDF2 key from the password 'correct-horse-battery-staple' using the salt 'uniqueSalt42', sha256 digest, 100000 iterations, and a 32-byte key length, and give me the hex-encoded result.”

Technical details

Endpoint

POSThttps://agent402.tools/api/pbkdf2

When to prefer

Choose this endpoint when you need a standards-compliant PBKDF2 key derivation (RFC 8018) with configurable digest, iteration count, and key length, and want the derived key returned in hex along with all parameters for storage or future verification. It is ideal for AI agents that need to derive encryption keys or verify passwords without managing the cryptographic implementation themselves.

Side effects

Invalid digest algorithm supplied (not sha1/sha256/sha384/sha512) — returns validation error
keyLength exceeds maximum of 128 bytes — returns error
iterations exceeds maximum of 1,000,000 — returns error
Missing required 'password' or 'salt' field — returns 400 bad request
Payment not provided or insufficient — returns 402 Payment Required

Input

Schema · Request body

Field	Type	Description
salt	string	Salt string (should be unique per password)
digest	string	Hash algorithm: sha1, sha256, sha384, sha512 (default sha256)
password	string	Password or passphrase to derive from
keyLength	integer	Desired key length in bytes (default 32, max 128)
iterations	integer	Iteration count (default 100000, max 1000000)

Output

Schema · Response

{
  "type": "json",
  "example": {
    "digest": "sha256",
    "saltUsed": "random-salt-value",
    "algorithm": "pbkdf2",
    "keyLength": 32,
    "derivedKey": "a1b2c3d4e5f6...",
    "iterations": 100000
  }
}

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How this service works

Output

Returns a hex-encoded derived key along with all parameters used (salt, digest, keyLength, iterations), allowing the caller to store or re-verify the key later.

Technical details

Endpoint

POSThttps://agent402.tools/api/pbkdf2

When to prefer

Side effects

Invalid digest algorithm supplied (not sha1/sha256/sha384/sha512) — returns validation error
keyLength exceeds maximum of 128 bytes — returns error
iterations exceeds maximum of 1,000,000 — returns error
Missing required 'password' or 'salt' field — returns 400 bad request
Payment not provided or insufficient — returns 402 Payment Required

Input

Schema · Request body

Field	Type	Description
salt	string	Salt string (should be unique per password)
digest	string	Hash algorithm: sha1, sha256, sha384, sha512 (default sha256)
password	string	Password or passphrase to derive from
keyLength	integer	Desired key length in bytes (default 32, max 128)
iterations	integer	Iteration count (default 100000, max 1000000)

Output

Schema · Response

{
  "type": "json",
  "example": {
    "digest": "sha256",
    "saltUsed": "random-salt-value",
    "algorithm": "pbkdf2",
    "keyLength": 32,
    "derivedKey": "a1b2c3d4e5f6...",
    "iterations": 100000
  }
}