method SubtleCrypto.wrapKey SubtleCrypto.wrapKey(format: KeyFormat,key: CryptoKey,wrappingKey: CryptoKey,wrapAlgorithm: AlgorithmIdentifier | RsaOaepParams | AesCbcParams | AesCtrParams,): Promise<ArrayBuffer> Parameters format: KeyFormat key: CryptoKey wrappingKey: CryptoKey wrapAlgorithm: AlgorithmIdentifier | RsaOaepParams | AesCbcParams | AesCtrParams Return Type Promise<ArrayBuffer>