projects / apple / security.git / blame
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|---|---|---|
| b54c578e A |
1 | /* |
| 2 | * Copyright (c) 2019 Apple Inc. All Rights Reserved. | |
| 3 | * | |
| 4 | * @APPLE_LICENSE_HEADER_START@ | |
| 5 | * | |
| 6 | * This file contains Original Code and/or Modifications of Original Code | |
| 7 | * as defined in and that are subject to the Apple Public Source License | |
| 8 | * Version 2.0 (the 'License'). You may not use this file except in | |
| 9 | * compliance with the License. Please obtain a copy of the License at | |
| 10 | * http://www.opensource.apple.com/apsl/ and read it before using this | |
| 11 | * file. | |
| 12 | * | |
| 13 | * The Original Code and all software distributed under the License are | |
| 14 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 15 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
| 16 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 17 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. | |
| 18 | * Please see the License for the specific language governing rights and | |
| 19 | * limitations under the License. | |
| 20 | * | |
| 21 | * @APPLE_LICENSE_HEADER_END@ | |
| 22 | */ | |
| 23 | ||
| 24 | import Foundation | |
| 25 | import SecurityFoundation | |
| 26 | ||
| 27 | class RecoveryKey: NSObject { | |
| 28 | public var recoveryKeys: RecoveryKeySet | |
| 29 | public var secret: Data | |
| 30 | ||
| 31 | public var peerKeys: OctagonSelfPeerKeys | |
| 32 | ||
| 33 | public init(recoveryKeyString: String, recoverySalt: String) throws { | |
| 34 | self.secret = Data(bytes: Array(recoveryKeyString.utf8), count: recoveryKeyString.utf8.count) | |
| 35 | self.recoveryKeys = try RecoveryKeySet(secret: self.secret, recoverySalt: recoverySalt) | |
| 36 | ||
| 37 | let hash = try RecoveryKeySet.hashRecoveryedSigningPublicKey(keyData: self.recoveryKeys.signingKey.publicKey.keyData) | |
| 38 | let peerID = "RK-" + hash | |
| 39 | ||
| 40 | try self.peerKeys = OctagonSelfPeerKeys(peerID: peerID, signingKey: self.recoveryKeys.signingKey, encryptionKey: self.recoveryKeys.encryptionKey) | |
| 41 | } | |
| 42 | } | |
| 43 | ||
| 44 | extension RecoveryKey { | |
| 45 | enum Error: Swift.Error { | |
| 46 | case OTErrorDeserializationFailure | |
| 47 | case OTErrorDecryptionFailure | |
| 48 | case OTErrorKeyInstantiation | |
| 49 | case OTErrorKeyMismatch | |
| 50 | case OTErrorRecoveryCreation | |
| 51 | case OTErrorAuthCipherTextCreation | |
| 52 | case OTErrorPrivateKeyCreation | |
| 53 | case OTErrorRecoveryKeyCreation | |
| 54 | case OTErrorEntropyCreation | |
| 55 | case OTErrorEntropyKeyMismatch | |
| 56 | } | |
| 57 | } | |
| 58 | ||
| 59 | extension RecoveryKey.Error: LocalizedError { | |
| 60 | public var errorDescription: String? { | |
| 61 | switch self { | |
| 62 | case .OTErrorDeserializationFailure: | |
| 63 | return "Failed to deserialize Recovery peer" | |
| 64 | case .OTErrorDecryptionFailure: | |
| 65 | return "could not decrypt Recovery contents" | |
| 66 | case .OTErrorKeyInstantiation: | |
| 67 | return "Failed to instantiate octagon peer keys" | |
| 68 | case .OTErrorKeyMismatch: | |
| 69 | return "public and private peer signing keys do not match" | |
| 70 | case .OTErrorRecoveryCreation: | |
| 71 | return "failed to create Recovery" | |
| 72 | case .OTErrorAuthCipherTextCreation: | |
| 73 | return "failed to create authenticated ciphertext" | |
| 74 | case .OTErrorPrivateKeyCreation: | |
| 75 | return "failed to create private key" | |
| 76 | case .OTErrorRecoveryKeyCreation: | |
| 77 | return "failed to create recovery keys" | |
| 78 | case .OTErrorEntropyCreation: | |
| 79 | return "failed to create entropy" | |
| 80 | case .OTErrorEntropyKeyMismatch: | |
| 81 | return "keys generated by the entropy+salt do not match the Recovery contents" | |
| 82 | } | |
| 83 | } | |
| 84 | } |