cbaae3fb08
For historical reasons libsignal's PublicKey.init(_:) allows trailing data, because the type byte specifies how much of the data is relevant anyway. init(keyBytes:), however, should not be so lax, since it's assuming the key data is a Curve25519 public point.
22 lines
605 B
Swift
22 lines
605 B
Swift
//
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// Copyright 2023 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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import LibSignalClient
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extension PublicKey {
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public convenience init(keyData: Data) throws {
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if keyData.count != Constants.keyLengthDJB {
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throw SignalError.invalidKey("invalid number of public key bytes (expected \(Constants.keyLengthDJB), was \(keyData.count))")
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}
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try self.init([Constants.keyTypeDJB] + keyData)
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}
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public enum Constants {
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public static let keyTypeDJB: UInt8 = 0x05
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public static let keyLengthDJB: Int = 32
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}
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}
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