JwsHeader
constructor( keyId: String? = null, type: String? = null, algorithm: JwsAlgorithm, contentType: String? = null, certificateChain: CertificateChain? = null, notBefore: Instant? = null, issuedAt: Instant? = null, expiration: Instant? = null, jsonWebKey: JsonWebKey? = null, jsonWebKeySetUrl: String? = null, certificateUrl: String? = null, certificateSha1Thumbprint: ByteArray? = null, certificateSha256Thumbprint: ByteArray? = null, attestationJwt: String? = null, keyAttestation: String? = null)(source)