Encryption & Compression

import CryptoKit

let key = SymmetricKey(size: .bits256)
let defaults = PrismDefaultsStore()
let secure = PrismEncryptedStore(wrapping: defaults, key: key)

// Values encrypted at rest
try secure.save("api-key-secret", forKey: "apiKey")
let apiKey = try secure.load(String.self, forKey: "apiKey") // decrypted

// Also accepts raw key data
let secure2 = PrismEncryptedStore(wrapping: defaults, keyData: keyData)

let disk = PrismDiskStore(directory: .applicationSupport)
let secureDisk = PrismEncryptedAsyncStore(wrapping: disk, key: key)

try await secureDisk.save(credentials, forKey: "creds")

let store = PrismCompressedStore(
    wrapping: PrismDefaultsStore(),
    algorithm: .lzfse // default
)

// Large payloads compressed transparently
let bigPayload = Array(0..<10_000)
try store.save(bigPayload, forKey: "data")
let loaded = try store.load([Int].self, forKey: "data")

let compressedDisk = PrismCompressedAsyncStore(
    wrapping: PrismDiskStore(),
    algorithm: .lzma
)

let base = PrismDefaultsStore()
let compressed = PrismCompressedStore(wrapping: base, algorithm: .lzfse)
let secure = PrismEncryptedStore(wrapping: compressed, key: key)

// Data flow: value → JSON → compress → encrypt → store
try secure.save(sensitiveData, forKey: "payload")