Fix receiving short OMEMO messages with auth tags from Conversations

chrisballinger · chrisballinger · commit c8f8f0720ae3 · 2017-04-17T16:29:12.000-07:00
diff --git a/ChatSecure/Classes/Controllers/OTROMEMOSignalCoordinator.swift b/ChatSecure/Classes/Controllers/OTROMEMOSignalCoordinator.swift
@@ -352,7 +352,7 @@ import YapDatabase
     
     open func processKeyData(_ keyData: [OMEMOKeyData], iv: Data, senderDeviceId: UInt32, fromJID: XMPPJID, payload: Data?, message: XMPPMessage) {
         let aesGcmBlockLength = 16
-        guard let encryptedPayload = payload, encryptedPayload.count > aesGcmBlockLength else {
+        guard let encryptedPayload = payload, encryptedPayload.count > 0 else {
             return
         }
         

Original file line number	Diff line number	Diff line change
`@@ -352,7 +352,7 @@ import YapDatabase`
`352`	`352`
`353`	`353`	`open func processKeyData(_ keyData: [OMEMOKeyData], iv: Data, senderDeviceId: UInt32, fromJID: XMPPJID, payload: Data?, message: XMPPMessage) {`
`354`	`354`	`let aesGcmBlockLength = 16`
`355`		`- guard let encryptedPayload = payload, encryptedPayload.count > aesGcmBlockLength else {`
	`355`	`+ guard let encryptedPayload = payload, encryptedPayload.count > 0 else {`
`356`	`356`	`return`
`357`	`357`	`}`
`358`	`358`