curl --request POST \
  --url https://api.iotools.cloud/v1/tool/pbkdf2-key-generator \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "password": "correct horse battery staple",
  "saltMode": "custom",
  "customSalt": "example-salt-256",
  "customSaltEncoding": "text",
  "algorithm": "sha256",
  "iterations": "100000",
  "keyLengthBits": "256",
  "expectedKey": ""
}
'

{
  "tool": "pbkdf2-key-generator",
  "tool_version": "1.0.1",
  "outputs": {
    "derivedKeyHex": "5240b4f12e37580b77c8e9d152893567f7cf109b4562a805e5c746adb45a82ef",
    "derivedKeyBase64": "UkC08S43WAt3yOnRUok1Z/fPEJtFYqgF5cdGrbRagu8=",
    "saltUsed": "6578616d706c652d73616c742d323536",
    "match": "",
    "securityNote": "Below OWASP's 2023 recommended minimum for PBKDF2-HMAC-SHA-256 (600,000 iterations) — consider increasing."
  },
  "credits_used": 3,
  "credits_remaining": null
}