agent: quantum-resistant double ratchet encryption (#939)

* doc

* diff

* ratchet header

* types

* ratchet step with PQ KEM, message header with KEM

* comment

* update types, remove Eq instances, store KEM keys to database

* pqx3dh

* PQ double ratchet test

* pqdr tests pass

* fix most tests

* refactor

* allow KEM proposals from both sides

* test names

* agent API parameters to use PQ KEM

* initialize ratchet state for enabling KEM

* fix/test KEM state machine to support disabling/enabling via messages

* more tests

* diff

* diff2

* refactor

* refactor

* refactor

* refactor

* remove Maybe

* rename

* add PQ encryption status to CON, MID and MSG events and sendMessage API results

* different PQ parameter when creating connection

* rename/reorganize types for PQ encryption modes

* rename

* fix testWaitDeliveryTimeout

* rename

* rename2

* ghc8107

* rename

* increase timeouts for concurrent send/receive test

* enable all tests

---------

Co-authored-by: spaced4ndy <8711996+spaced4ndy@users.noreply.github.com>

src/Simplex/FileTransfer/Client/Main.hs

@@ -220,13 +220,13 @@ data SentFileChunk = SentFileChunk
     digest :: FileDigest,
     replicas :: [SentFileChunkReplica]
   }
-  deriving (Eq, Show)
+  deriving (Show)
 
 data SentFileChunkReplica = SentFileChunkReplica
   { server :: XFTPServer,
     recipients :: [(ChunkReplicaId, C.APrivateAuthKey)]
   }
-  deriving (Eq, Show)
+  deriving (Show)
 
 data SentRecipientReplica = SentRecipientReplica
   { chunkNo :: Int,

src/Simplex/FileTransfer/Protocol.hs

@@ -171,7 +171,7 @@ data FileInfo = FileInfo
     size :: Word32,
     digest :: ByteString
   }
-  deriving (Eq, Show)
+  deriving (Show)
 
 type XFTPFileId = ByteString
 

src/Simplex/FileTransfer/Server/Store.hs

@@ -49,7 +49,6 @@ data FileRec = FileRec
     recipientIds :: TVar (Set RecipientId),
     createdAt :: SystemTime
   }
-  deriving (Eq)
 
 data FileRecipient = FileRecipient RecipientId RcvPublicAuthKey
 

src/Simplex/FileTransfer/Types.hs

@@ -55,7 +55,7 @@ data RcvFile = RcvFile
     status :: RcvFileStatus,
     deleted :: Bool
   }
-  deriving (Eq, Show)
+  deriving (Show)
 
 data RcvFileStatus
   = RFSReceiving
@@ -96,7 +96,7 @@ data RcvFileChunk = RcvFileChunk
     fileTmpPath :: FilePath,
     chunkTmpPath :: Maybe FilePath
   }
-  deriving (Eq, Show)
+  deriving (Show)
 
 data RcvFileChunkReplica = RcvFileChunkReplica
   { rcvChunkReplicaId :: Int64,
@@ -107,14 +107,14 @@ data RcvFileChunkReplica = RcvFileChunkReplica
     delay :: Maybe Int64,
     retries :: Int
   }
-  deriving (Eq, Show)
+  deriving (Show)
 
 data RcvFileRedirect = RcvFileRedirect
   { redirectDbId :: DBRcvFileId,
     redirectEntityId :: RcvFileId,
     redirectFileInfo :: RedirectFileInfo
   }
-  deriving (Eq, Show)
+  deriving (Show)
 
 -- Sending files
 
@@ -135,7 +135,7 @@ data SndFile = SndFile
     deleted :: Bool,
     redirect :: Maybe RedirectFileInfo
   }
-  deriving (Eq, Show)
+  deriving (Show)
 
 sndFileEncPath :: FilePath -> FilePath
 sndFileEncPath prefixPath = prefixPath </> "xftp.encrypted"
@@ -182,7 +182,7 @@ data SndFileChunk = SndFileChunk
     digest :: FileDigest,
     replicas :: [SndFileChunkReplica]
   }
-  deriving (Eq, Show)
+  deriving (Show)
 
 sndChunkSize :: SndFileChunk -> Word32
 sndChunkSize SndFileChunk {chunkSpec = XFTPChunkSpec {chunkSize}} = chunkSize
@@ -193,7 +193,7 @@ data NewSndChunkReplica = NewSndChunkReplica
     replicaKey :: C.APrivateAuthKey,
     rcvIdsKeys :: [(ChunkReplicaId, C.APrivateAuthKey)]
   }
-  deriving (Eq, Show)
+  deriving (Show)
 
 data SndFileChunkReplica = SndFileChunkReplica
   { sndChunkReplicaId :: Int64,
@@ -205,7 +205,7 @@ data SndFileChunkReplica = SndFileChunkReplica
     delay :: Maybe Int64,
     retries :: Int
   }
-  deriving (Eq, Show)
+  deriving (Show)
 
 data SndFileReplicaStatus
   = SFRSCreated
@@ -235,4 +235,4 @@ data DeletedSndChunkReplica = DeletedSndChunkReplica
     delay :: Maybe Int64,
     retries :: Int
   }
-  deriving (Eq, Show)
+  deriving (Show)