JSON Web Key (JWK) Generate

Select the JWK supported algorithm and then click submit


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Any private key value that you enter or we generate is not stored on this site, this tool is provided via an HTTPS URL to ensure that private keys cannot be stolen, for extra security run this software on your network, no cloud dependency

Generate a JSON Web Key (JWK)

A JSON object that represents a cryptographic key. The members of the object represent properties of the key, including its value.

Example JWK

{
      "kty":"EC",
      "crv":"P-256",
      "x":"f83OJ3D2xF1Bg8vub9tLe1gHMzV76e8Tus9uPHvRVEU",
      "y":"x_FEzRu9m36HLN_tue659LNpXW6pCyStikYjKIWI5a0",
      "kid":"Id that can be uniquely Identified"
  }

The kty (key type) parameter identifies the cryptographic algorithm family used with the key, such as RSA or EC

  • RSA keys, prefred key Size 2048,4096, used for signature and encryption
  • Elliptic curve keys: EC keys and EC operations with the following designations:
    • P-256 a.k.a secp256r1 (NIST) or prime256v1 (ANSI X9.62)
    • P-384 a.k.a secp384r1 (NIST)
    • P-521 a.k.a secp521r1 (NIST)
  • Octet Key Pair : Octet key pairs are used to represent Edwards curve keys. They bear the JWK type designation “OKP” and are used for JSON Web Signatures (JWS) with Ed25519 / Ed448 and JSON Web Encryption (JWE) with ECDH with X25519 / X448
  • Octet Sequence keys : The octet sequence JWK format is intended for representing secret keys, such as keys for use in HMAC and AES
    • HS256 : indicates that this token is signed using HMAC-SHA256
    • HS384
    • HS512
    • AES Keys
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