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Update configuration message handling for ED25519 key pairs

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authentication
Niels Andriesse 4 years ago
parent 2e75408ffa
commit 6ed7c9753a
4 changed files with 27 additions and 16 deletions
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34
SessionMessagingKit/Messages/Control Messages/ConfigurationMessage.swift
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@ -1,4 +1,5 @@
import SessionUtilitiesKit
import Sodium
@objc(SNConfigurationMessage)
public final class ConfigurationMessage : ControlMessage {
@ -98,17 +99,19 @@ extension ConfigurationMessage {
public final class ClosedGroup : NSObject, NSCoding { // NSObject/NSCoding conformance is needed for YapDatabase compatibility
public let publicKey: String
public let name: String
public let encryptionKeyPair: ECKeyPair
public let x25519KeyPair: ECKeyPair
public let ed25519KeyPair: Sign.KeyPair?
public let members: Set<String>
public let admins: Set<String>
public let expirationTimer: UInt32
public var isValid: Bool { !members.isEmpty && !admins.isEmpty }
public init(publicKey: String, name: String, encryptionKeyPair: ECKeyPair, members: Set<String>, admins: Set<String>, expirationTimer: UInt32) {
public init(publicKey: String, name: String, x25519KeyPair: ECKeyPair, ed25519KeyPair: Sign.KeyPair?, members: Set<String>, admins: Set<String>, expirationTimer: UInt32) {
self.publicKey = publicKey
self.name = name
self.encryptionKeyPair = encryptionKeyPair
self.x25519KeyPair = x25519KeyPair
self.ed25519KeyPair = ed25519KeyPair
self.members = members
self.admins = admins
self.expirationTimer = expirationTimer
@ -117,13 +120,15 @@ extension ConfigurationMessage {
public required init?(coder: NSCoder) {
guard let publicKey = coder.decodeObject(forKey: "publicKey") as! String?,
let name = coder.decodeObject(forKey: "name") as! String?,
let encryptionKeyPair = coder.decodeObject(forKey: "encryptionKeyPair") as! ECKeyPair?,
let x25519KeyPair = coder.decodeObject(forKey: "encryptionKeyPair") as! ECKeyPair?,
let members = coder.decodeObject(forKey: "members") as! Set<String>?,
let admins = coder.decodeObject(forKey: "admins") as! Set<String>? else { return nil }
let expirationTimer = coder.decodeObject(forKey: "expirationTimer") as? UInt32 ?? 0
let ed25519KeyPair = coder.decodeObject(forKey: "ed25519KeyPair") as! Sign.KeyPair?
self.publicKey = publicKey
self.name = name
self.encryptionKeyPair = encryptionKeyPair
self.x25519KeyPair = x25519KeyPair
self.ed25519KeyPair = ed25519KeyPair
self.members = members
self.admins = admins
self.expirationTimer = expirationTimer
@ -132,7 +137,8 @@ extension ConfigurationMessage {
public func encode(with coder: NSCoder) {
coder.encode(publicKey, forKey: "publicKey")
coder.encode(name, forKey: "name")
coder.encode(encryptionKeyPair, forKey: "encryptionKeyPair")
coder.encode(x25519KeyPair, forKey: "encryptionKeyPair")
coder.encode(ed25519KeyPair, forKey: "ed25519KeyPair")
coder.encode(members, forKey: "members")
coder.encode(admins, forKey: "admins")
coder.encode(expirationTimer, forKey: "expirationTimer")
@ -141,18 +147,22 @@ extension ConfigurationMessage {
public static func fromProto(_ proto: SNProtoConfigurationMessageClosedGroup) -> ClosedGroup? {
guard let publicKey = proto.publicKey?.toHexString(),
let name = proto.name,
let encryptionKeyPairAsProto = proto.x25519 else { return nil }
let encryptionKeyPair: ECKeyPair
let x25519KeyPairAsProto = proto.x25519 else { return nil }
let x25519KeyPair: ECKeyPair
do {
encryptionKeyPair = try ECKeyPair(publicKeyData: encryptionKeyPairAsProto.publicKey, privateKeyData: encryptionKeyPairAsProto.privateKey)
x25519KeyPair = try ECKeyPair(publicKeyData: x25519KeyPairAsProto.publicKey, privateKeyData: x25519KeyPairAsProto.privateKey)
} catch {
SNLog("Couldn't construct closed group from proto: \(self).")
return nil
}
var ed25519KeyPair: Sign.KeyPair? = nil
if let ed25519KeyPairAsProto = proto.ed25519 {
ed25519KeyPair = Sign.KeyPair(publicKey: Bytes(ed25519KeyPairAsProto.publicKey), secretKey: Bytes(ed25519KeyPairAsProto.privateKey))
}
let members = Set(proto.members.map { $0.toHexString() })
let admins = Set(proto.admins.map { $0.toHexString() })
let expirationTimer = proto.expirationTimer
let result = ClosedGroup(publicKey: publicKey, name: name, encryptionKeyPair: encryptionKeyPair, members: members, admins: admins, expirationTimer: expirationTimer)
let result = ClosedGroup(publicKey: publicKey, name: name, x25519KeyPair: x25519KeyPair, ed25519KeyPair: ed25519KeyPair, members: members, admins: admins, expirationTimer: expirationTimer)
guard result.isValid else { return nil }
return result
}
@ -163,8 +173,8 @@ extension ConfigurationMessage {
result.setPublicKey(Data(hex: publicKey))
result.setName(name)
do {
let encryptionKeyPairAsProto = try SNProtoKeyPair.builder(publicKey: encryptionKeyPair.publicKey, privateKey: encryptionKeyPair.privateKey).build()
result.setX25519(encryptionKeyPairAsProto)
let x25519KeyPairAsProto = try SNProtoKeyPair.builder(publicKey: x25519KeyPair.publicKey, privateKey: x25519KeyPair.privateKey).build()
result.setX25519(x25519KeyPairAsProto)
} catch {
SNLog("Couldn't construct closed group proto from: \(self).")
return nil

2
SessionMessagingKit/Sending & Receiving/MessageReceiver+Handling.swift
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@ -204,7 +204,7 @@ extension MessageReceiver {
let allClosedGroupPublicKeys = storage.getUserClosedGroupPublicKeys()
for closedGroup in message.closedGroups {
guard !allClosedGroupPublicKeys.contains(closedGroup.publicKey) else { continue }
handleNewClosedGroup(groupPublicKey: closedGroup.publicKey, name: closedGroup.name, x25519KeyPair: closedGroup.encryptionKeyPair,
handleNewClosedGroup(groupPublicKey: closedGroup.publicKey, name: closedGroup.name, x25519KeyPair: closedGroup.x25519KeyPair,
members: [String](closedGroup.members), admins: [String](closedGroup.admins), expirationTimer: closedGroup.expirationTimer, ed25519KeyPair: nil,
messageSentTimestamp: message.sentTimestamp!, using: transaction)
}

2
SessionNotificationServiceExtension/NotificationServiceExtension.swift
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@ -61,7 +61,7 @@ public final class NotificationServiceExtension : UNNotificationServiceExtension
// TODO: We could consider actually handling the update here. Not sure if there's enough time though, seeing as though
// in some cases we need to send messages (e.g. our sender key) to a number of other users.
switch closedGroupControlMessage.kind {
case .new(_, let name, _, _, _, _): snippet = "\(senderDisplayName) added you to \(name)"
case .new(_, let name, _, _, _, _, _): snippet = "\(senderDisplayName) added you to \(name)"
default: return self.completeSilenty()
}
default: return self.completeSilenty()

5
SignalUtilitiesKit/Messaging/ConfigurationMessage+Convenience.swift
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@ -20,8 +20,9 @@ extension ConfigurationMessage {
let groupID = thread.groupModel.groupId
let groupPublicKey = LKGroupUtilities.getDecodedGroupID(groupID)
guard storage.isClosedGroup(groupPublicKey),
let encryptionKeyPair = storage.getLatestClosedGroupEncryptionKeyPair(for: groupPublicKey) else { return }
let closedGroup = ClosedGroup(publicKey: groupPublicKey, name: thread.groupModel.groupName!, encryptionKeyPair: encryptionKeyPair,
let x25519KeyPair = storage.getLatestClosedGroupEncryptionKeyPair(for: groupPublicKey) else { return }
let ed25519KeyPair = storage.getLatestClosedGroupAuthenticationKeyPair(for: groupPublicKey)
let closedGroup = ClosedGroup(publicKey: groupPublicKey, name: thread.groupModel.groupName!, x25519KeyPair: x25519KeyPair, ed25519KeyPair: ed25519KeyPair,
members: Set(thread.groupModel.groupMemberIds), admins: Set(thread.groupModel.groupAdminIds), expirationTimer: thread.disappearingMessagesDuration(with: transaction))
closedGroups.insert(closedGroup)
case .openGroup:

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