40 lines
1.1 KiB
Swift
40 lines
1.1 KiB
Swift
//
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// Copyright 2025 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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//
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import Foundation
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public import LibSignalClient
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public struct AccountEntropyPool: Codable {
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public enum Constants {
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public static let byteLength: Int = 64 /* bytes */
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}
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private let key: String
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public var rawData: String { key }
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public init() {
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self.key = LibSignalClient.AccountEntropyPool.generate()
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}
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public init(key: String) throws {
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guard LibSignalClient.AccountEntropyPool.isValid(key) else {
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throw OWSAssertionError("Invalid entropy pool key")
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}
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self.key = key
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}
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// Derived Keys
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public func getMasterKey() -> MasterKey {
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// Force unwrap here. At this point, the AEP value should either have been validated by
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// LibSignal on init, or generated by LibSignal, so should correctly generate a MasterKey.
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return try! MasterKey(data: try! LibSignalClient.AccountEntropyPool.deriveSvrKey(key))
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}
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public func getBackupKey() -> BackupKey {
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return try! LibSignalClient.AccountEntropyPool.deriveBackupKey(key)
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}
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}
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