CWT Token Input
Base64URL Hex
COSE Structure
Type:
COSE_Sign1 COSE_Mac0 COSE_Sign COSE_Mac COSE_Encrypt0 COSE_Encrypt
ES256 ES384 ES512 HMAC-256 HMAC-384 HMAC-512 AES-GCM-128 AES-CCM-128
Key ID: Not specified
Signature Verification
PEM JWK Hex Base64
ES256 ES384 ES512 HMAC-256 HMAC-384 HMAC-512
Enter a verification key above to automatically verify the CWT signature.
CWT Claims Set 0 claims
{ "iss": "https://example.com", // 1: Issuer "sub": "user123", // 2: Subject "aud": "app456", // 3: Audience "exp": 1735689600, // 4: Expiration Time "iat": 1735603200 // 6: Issued At }
Load a token to see parsed claims • Click claim names to edit mappings RFC 8392 §3.1
CBOR Structure

Raw Bytes

CBOR Structure

Hover over bytes or structure elements to see relationships • Shows CBOR encoding details
Schema & Claims
Schema Controls
Claims Registry 0 claims