50064fc3d0
Minimize target dependency on OpenSSL (easier to drop later). Outside of OpenVPN tunnel extension, OpenSSL is only used to decrypt encrypted private keys in CryptoContainer (found in TunnelKitOpenVPNCore, therefore "temporarily" dependent on CTunnelKitOpenVPNAppExtension for TLSBox/CryptoBox).
49 lines
1.5 KiB
Swift
49 lines
1.5 KiB
Swift
//
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// OpenVPN+PRNG.swift
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// TunnelKit
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//
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// Created by Davide De Rosa on 11/8/21.
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// Copyright (c) 2021 Davide De Rosa. All rights reserved.
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//
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// https://github.com/passepartoutvpn
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//
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// This file is part of TunnelKit.
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//
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// TunnelKit is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// TunnelKit is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with TunnelKit. If not, see <http://www.gnu.org/licenses/>.
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//
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import Foundation
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import TunnelKitCore
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import TunnelKitOpenVPNCore
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import CTunnelKitCore
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import CTunnelKitOpenVPNProtocol
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extension OpenVPN {
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/**
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Initializes the PRNG. Must be issued before using `OpenVPNSession`.
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- Parameter seedLength: The length in bytes of the pseudorandom seed that will feed the PRNG.
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*/
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public static func prepareRandomNumberGenerator(seedLength: Int) -> Bool {
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let seed: ZeroingData
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do {
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seed = try SecureRandom.safeData(length: seedLength)
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} catch {
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return false
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}
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return CryptoBox.preparePRNG(withSeed: seed.bytes, length: seed.count)
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}
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}
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