Encrypts every value with AES-GCM under a key from getKey. With nonExtractableIdbKey the key is a non-extractable CryptoKey kept in IndexedDB, so script code can use it but never read it out.
getKey
nonExtractableIdbKey
Encrypts every value with AES-GCM under a key from
getKey. WithnonExtractableIdbKeythe key is a non-extractable CryptoKey kept in IndexedDB, so script code can use it but never read it out.