chat

package
v0.26.0-alpha.17 Latest Latest
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 Go to latest Published: May 24, 2019 License: MPL-2.0 Imports: 23 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var ErrDeviceNotFound = errors.New("device not found")
View Source 
var ErrNotProtocolMessage = errors.New("Not a protocol message")
View Source 
var ErrSessionNotFound = errors.New("session not found")

Functions

func DirectMessageToWhisper 

func DirectMessageToWhisper(rpcMsg SendDirectMessageRPC, payload []byte, sharedSecret []byte) whisper.NewMessage

func ExtractIdentity 

func ExtractIdentity(bundle *Bundle) (string, error)

ExtractIdentity extracts the identity key from a given bundle

func PerformActiveDH 

func PerformActiveDH(publicKey *ecdsa.PublicKey) ([]byte, *ecdsa.PublicKey, error)

PerformActiveDH performs a Diffie-Hellman exchange using a public key and a generated ephemeral key. Returns the key resulting from the DH exchange as well as the ephemeral public key.

func PerformActiveX3DH 

func PerformActiveX3DH(identity []byte, signedPreKey []byte, prv *ecdsa.PrivateKey) ([]byte, *ecdsa.PublicKey, error)

PerformActiveX3DH takes someone else's bundle and calculates shared secret. Returns the shared secret and the ephemeral key used.

func PerformDH 

func PerformDH(privateKey *ecies.PrivateKey, publicKey *ecies.PublicKey) ([]byte, error)

PerformDH generates a shared key given a private and a public key

func PerformPassiveX3DH 

func PerformPassiveX3DH(theirIdentityKey *ecdsa.PublicKey, mySignedPreKey *ecdsa.PrivateKey, theirEphemeralKey *ecdsa.PublicKey, myPrivateKey *ecdsa.PrivateKey) ([]byte, error)

PerformPassiveX3DH handles the part of the protocol where our interlocutor used our bundle, with ID of the signedPreKey, we loaded our identity key and the correct signedPreKey and we perform X3DH

func PublicMessageToWhisper 

func PublicMessageToWhisper(rpcMsg SendPublicMessageRPC, payload []byte) whisper.NewMessage

func SharedSecretToTopic 

func SharedSecretToTopic(secret []byte) whisper.TopicType

func SignBundle 

func SignBundle(identity *ecdsa.PrivateKey, bundleContainer *BundleContainer) error

func VerifyBundle 

func VerifyBundle(bundle *Bundle) error

VerifyBundle checks that a bundle is valid

Types

type Bundle 

type Bundle struct {
	// Identity key
	Identity []byte `protobuf:"bytes,1,opt,name=identity,proto3" json:"identity,omitempty"`
	// Installation id
	SignedPreKeys map[string]*SignedPreKey `` /* 190-byte string literal not displayed */
	// Prekey signature
	Signature []byte `protobuf:"bytes,4,opt,name=signature,proto3" json:"signature,omitempty"`
	// When the bundle was created locally
	Timestamp            int64    `protobuf:"varint,5,opt,name=timestamp,proto3" json:"timestamp,omitempty"`
	XXX_NoUnkeyedLiteral struct{} `json:"-"`
	XXX_unrecognized     []byte   `json:"-"`
	XXX_sizecache        int32    `json:"-"`
}

X3DH prekey bundle

func FromBase64 

func FromBase64(str string) (*Bundle, error)

FromBase64 unmarshals a Bundle from a Base64 encoding representation of the protobuf Bundle message

func (*Bundle) Descriptor 

func (*Bundle) Descriptor() ([]byte, []int)

func (*Bundle) GetIdentity 

func (m *Bundle) GetIdentity() []byte

func (*Bundle) GetSignature 

func (m *Bundle) GetSignature() []byte

func (*Bundle) GetSignedPreKeys 

func (m *Bundle) GetSignedPreKeys() map[string]*SignedPreKey

func (*Bundle) GetTimestamp 

func (m *Bundle) GetTimestamp() int64

func (*Bundle) ProtoMessage 

func (*Bundle) ProtoMessage()

func (*Bundle) Reset 

func (m *Bundle) Reset()

func (*Bundle) String 

func (m *Bundle) String() string

func (*Bundle) ToBase64 

func (bundle *Bundle) ToBase64() (string, error)

ToBase64 returns a Base64 encoding representation of the protobuf Bundle message

func (*Bundle) XXX_DiscardUnknown 

func (m *Bundle) XXX_DiscardUnknown()

func (*Bundle) XXX_Marshal 

func (m *Bundle) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*Bundle) XXX_Merge 

func (m *Bundle) XXX_Merge(src proto.Message)

func (*Bundle) XXX_Size 

func (m *Bundle) XXX_Size() int

func (*Bundle) XXX_Unmarshal 

func (m *Bundle) XXX_Unmarshal(b []byte) error

type BundleContainer 

type BundleContainer struct {
	// X3DH prekey bundle
	Bundle *Bundle `protobuf:"bytes,1,opt,name=bundle,proto3" json:"bundle,omitempty"`
	// Private signed prekey
	PrivateSignedPreKey  []byte   `protobuf:"bytes,2,opt,name=private_signed_pre_key,json=privateSignedPreKey,proto3" json:"private_signed_pre_key,omitempty"`
	XXX_NoUnkeyedLiteral struct{} `json:"-"`
	XXX_unrecognized     []byte   `json:"-"`
	XXX_sizecache        int32    `json:"-"`
}

func NewBundleContainer 

func NewBundleContainer(identity *ecdsa.PrivateKey, installationID string) (*BundleContainer, error)

NewBundleContainer creates a new BundleContainer from an identity private key

func (*BundleContainer) Descriptor 

func (*BundleContainer) Descriptor() ([]byte, []int)

func (*BundleContainer) GetBundle 

func (m *BundleContainer) GetBundle() *Bundle

func (*BundleContainer) GetPrivateSignedPreKey 

func (m *BundleContainer) GetPrivateSignedPreKey() []byte

func (*BundleContainer) ProtoMessage 

func (*BundleContainer) ProtoMessage()

func (*BundleContainer) Reset 

func (m *BundleContainer) Reset()

func (*BundleContainer) String 

func (m *BundleContainer) String() string

func (*BundleContainer) XXX_DiscardUnknown 

func (m *BundleContainer) XXX_DiscardUnknown()

func (*BundleContainer) XXX_Marshal 

func (m *BundleContainer) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*BundleContainer) XXX_Merge 

func (m *BundleContainer) XXX_Merge(src proto.Message)

func (*BundleContainer) XXX_Size 

func (m *BundleContainer) XXX_Size() int

func (*BundleContainer) XXX_Unmarshal 

func (m *BundleContainer) XXX_Unmarshal(b []byte) error

type ConfirmationData 

type ConfirmationData struct {
	// contains filtered or unexported fields
}

type DHHeader 

type DHHeader struct {
	// Compressed ephemeral public key
	Key                  []byte   `protobuf:"bytes,1,opt,name=key,proto3" json:"key,omitempty"`
	XXX_NoUnkeyedLiteral struct{} `json:"-"`
	XXX_unrecognized     []byte   `json:"-"`
	XXX_sizecache        int32    `json:"-"`
}

func (*DHHeader) Descriptor 

func (*DHHeader) Descriptor() ([]byte, []int)

func (*DHHeader) GetKey 

func (m *DHHeader) GetKey() []byte

func (*DHHeader) ProtoMessage 

func (*DHHeader) ProtoMessage()

func (*DHHeader) Reset 

func (m *DHHeader) Reset()

func (*DHHeader) String 

func (m *DHHeader) String() string

func (*DHHeader) XXX_DiscardUnknown 

func (m *DHHeader) XXX_DiscardUnknown()

func (*DHHeader) XXX_Marshal 

func (m *DHHeader) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*DHHeader) XXX_Merge 

func (m *DHHeader) XXX_Merge(src proto.Message)

func (*DHHeader) XXX_Size 

func (m *DHHeader) XXX_Size() int

func (*DHHeader) XXX_Unmarshal 

func (m *DHHeader) XXX_Unmarshal(b []byte) error

type DRHeader 

type DRHeader struct {
	// Current ratchet public key
	Key []byte `protobuf:"bytes,1,opt,name=key,proto3" json:"key,omitempty"`
	// Number of the message in the sending chain
	N uint32 `protobuf:"varint,2,opt,name=n,proto3" json:"n,omitempty"`
	// Length of the previous sending chain
	Pn uint32 `protobuf:"varint,3,opt,name=pn,proto3" json:"pn,omitempty"`
	// Bundle ID
	Id                   []byte   `protobuf:"bytes,4,opt,name=id,proto3" json:"id,omitempty"`
	XXX_NoUnkeyedLiteral struct{} `json:"-"`
	XXX_unrecognized     []byte   `json:"-"`
	XXX_sizecache        int32    `json:"-"`
}

func (*DRHeader) Descriptor 

func (*DRHeader) Descriptor() ([]byte, []int)

func (*DRHeader) GetId 

func (m *DRHeader) GetId() []byte

func (*DRHeader) GetKey 

func (m *DRHeader) GetKey() []byte

func (*DRHeader) GetN 

func (m *DRHeader) GetN() uint32

func (*DRHeader) GetPn 

func (m *DRHeader) GetPn() uint32

func (*DRHeader) ProtoMessage 

func (*DRHeader) ProtoMessage()

func (*DRHeader) Reset 

func (m *DRHeader) Reset()

func (*DRHeader) String 

func (m *DRHeader) String() string

func (*DRHeader) XXX_DiscardUnknown 

func (m *DRHeader) XXX_DiscardUnknown()

func (*DRHeader) XXX_Marshal 

func (m *DRHeader) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*DRHeader) XXX_Merge 

func (m *DRHeader) XXX_Merge(src proto.Message)

func (*DRHeader) XXX_Size 

func (m *DRHeader) XXX_Size() int

func (*DRHeader) XXX_Unmarshal 

func (m *DRHeader) XXX_Unmarshal(b []byte) error

type DirectMessageProtocol 

type DirectMessageProtocol struct {
	X3DHHeader *X3DHHeader `protobuf:"bytes,1,opt,name=X3DH_header,json=X3DHHeader,proto3" json:"X3DH_header,omitempty"`
	DRHeader   *DRHeader   `protobuf:"bytes,2,opt,name=DR_header,json=DRHeader,proto3" json:"DR_header,omitempty"`
	DHHeader   *DHHeader   `protobuf:"bytes,101,opt,name=DH_header,json=DHHeader,proto3" json:"DH_header,omitempty"`
	// Encrypted payload
	Payload              []byte   `protobuf:"bytes,3,opt,name=payload,proto3" json:"payload,omitempty"`
	XXX_NoUnkeyedLiteral struct{} `json:"-"`
	XXX_unrecognized     []byte   `json:"-"`
	XXX_sizecache        int32    `json:"-"`
}

Direct message value

func (*DirectMessageProtocol) Descriptor 

func (*DirectMessageProtocol) Descriptor() ([]byte, []int)

func (*DirectMessageProtocol) GetDHHeader 

func (m *DirectMessageProtocol) GetDHHeader() *DHHeader

func (*DirectMessageProtocol) GetDRHeader 

func (m *DirectMessageProtocol) GetDRHeader() *DRHeader

func (*DirectMessageProtocol) GetPayload 

func (m *DirectMessageProtocol) GetPayload() []byte

func (*DirectMessageProtocol) GetX3DHHeader 

func (m *DirectMessageProtocol) GetX3DHHeader() *X3DHHeader

func (*DirectMessageProtocol) ProtoMessage 

func (*DirectMessageProtocol) ProtoMessage()

func (*DirectMessageProtocol) Reset 

func (m *DirectMessageProtocol) Reset()

func (*DirectMessageProtocol) String 

func (m *DirectMessageProtocol) String() string

func (*DirectMessageProtocol) XXX_DiscardUnknown 

func (m *DirectMessageProtocol) XXX_DiscardUnknown()

func (*DirectMessageProtocol) XXX_Marshal 

func (m *DirectMessageProtocol) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*DirectMessageProtocol) XXX_Merge 

func (m *DirectMessageProtocol) XXX_Merge(src proto.Message)

func (*DirectMessageProtocol) XXX_Size 

func (m *DirectMessageProtocol) XXX_Size() int

func (*DirectMessageProtocol) XXX_Unmarshal 

func (m *DirectMessageProtocol) XXX_Unmarshal(b []byte) error

type EncryptionService 

type EncryptionService struct {
	// contains filtered or unexported fields
}

EncryptionService defines a service that is responsible for the encryption aspect of the protocol.

func NewEncryptionService 

func NewEncryptionService(p PersistenceService, config EncryptionServiceConfig) *EncryptionService

NewEncryptionService creates a new EncryptionService instance.

func (*EncryptionService) ConfirmMessagesProcessed 

func (s *EncryptionService) ConfirmMessagesProcessed(messageIDs [][]byte) error

ConfirmMessagesProcessed confirms and deletes message keys for the given messages

func (*EncryptionService) CreateBundle 

func (s *EncryptionService) CreateBundle(privateKey *ecdsa.PrivateKey) (*Bundle, error)

CreateBundle retrieves or creates an X3DH bundle given a private key

func (*EncryptionService) DecryptPayload 

func (s *EncryptionService) DecryptPayload(myIdentityKey *ecdsa.PrivateKey, theirIdentityKey *ecdsa.PublicKey, theirInstallationID string, msgs map[string]*DirectMessageProtocol, messageID []byte) ([]byte, error)

DecryptPayload decrypts the payload of a DirectMessageProtocol, given an identity private key and the sender's public key

func (*EncryptionService) DecryptWithDH 

func (s *EncryptionService) DecryptWithDH(myIdentityKey *ecdsa.PrivateKey, theirEphemeralKey *ecdsa.PublicKey, payload []byte) ([]byte, error)

DecryptWithDH decrypts message sent with a DH key exchange, and throws away the key after decryption

func (*EncryptionService) DisableInstallation 

func (s *EncryptionService) DisableInstallation(myIdentityKey *ecdsa.PublicKey, installationID string) error

func (*EncryptionService) EnableInstallation 

func (s *EncryptionService) EnableInstallation(myIdentityKey *ecdsa.PublicKey, installationID string) error

func (*EncryptionService) EncryptPayload 

func (s *EncryptionService) EncryptPayload(theirIdentityKey *ecdsa.PublicKey, myIdentityKey *ecdsa.PrivateKey, payload []byte) (map[string]*DirectMessageProtocol, []*Installation, error)

EncryptPayload returns a new DirectMessageProtocol with a given payload encrypted, given a recipient's public key and the sender private identity key TODO: refactor this nolint: gocyclo

func (*EncryptionService) EncryptPayloadWithDH added in v0.16.4 

func (s *EncryptionService) EncryptPayloadWithDH(theirIdentityKey *ecdsa.PublicKey, payload []byte) (map[string]*DirectMessageProtocol, error)

func (*EncryptionService) GetPublicBundle 

func (s *EncryptionService) GetPublicBundle(theirIdentityKey *ecdsa.PublicKey) (*Bundle, error)

GetPublicBundle returns the active installations bundles for a given user

func (*EncryptionService) ProcessPublicBundle 

func (s *EncryptionService) ProcessPublicBundle(myIdentityKey *ecdsa.PrivateKey, b *Bundle) ([]IdentityAndIDPair, error)

ProcessPublicBundle persists a bundle and returns a list of tuples identity/installationID

type EncryptionServiceConfig 

type EncryptionServiceConfig struct {
	InstallationID string
	// Max number of installations we keep synchronized.
	MaxInstallations int
	// How many consecutive messages can be skipped in the receiving chain.
	MaxSkip int
	// Any message with seqNo <= currentSeq - maxKeep will be deleted.
	MaxKeep int
	// How many keys do we store in total per session.
	MaxMessageKeysPerSession int
	// How long before we refresh the interval in milliseconds
	BundleRefreshInterval int64
}

func DefaultEncryptionServiceConfig 

func DefaultEncryptionServiceConfig(installationID string) EncryptionServiceConfig

DefaultEncryptionServiceConfig returns the default values used by the encryption service

type IdentityAndIDPair added in v0.16.4 

type IdentityAndIDPair [2]string

type Installation 

type Installation struct {
	ID      string
	Version uint32
}

type PersistenceService 

type PersistenceService interface {
	// GetKeysStorage returns the associated double ratchet KeysStorage object.
	GetKeysStorage() dr.KeysStorage
	// GetSessionStorage returns the associated double ratchet SessionStorage object.
	GetSessionStorage() dr.SessionStorage

	// GetPublicBundle retrieves an existing Bundle for the specified public key & installationIDs.
	GetPublicBundle(*ecdsa.PublicKey, []*Installation) (*Bundle, error)
	// AddPublicBundle persists a specified Bundle
	AddPublicBundle(*Bundle) error

	// GetAnyPrivateBundle retrieves any bundle for our identity & installationIDs
	GetAnyPrivateBundle([]byte, []*Installation) (*BundleContainer, error)
	// GetPrivateKeyBundle retrieves a BundleContainer with the specified signed prekey.
	GetPrivateKeyBundle([]byte) ([]byte, error)
	// AddPrivateBundle persists a BundleContainer.
	AddPrivateBundle(*BundleContainer) error
	// MarkBundleExpired marks a private bundle as expired, not to be used for encryption anymore.
	MarkBundleExpired([]byte) error

	// AddRatchetInfo persists the specified ratchet info
	AddRatchetInfo([]byte, []byte, []byte, []byte, string) error
	// GetRatchetInfo retrieves the existing RatchetInfo for a specified bundle ID and interlocutor public key.
	GetRatchetInfo([]byte, []byte, string) (*RatchetInfo, error)
	// GetAnyRatchetInfo retrieves any existing RatchetInfo for a specified interlocutor public key.
	GetAnyRatchetInfo([]byte, string) (*RatchetInfo, error)
	// RatchetInfoConfirmed clears the ephemeral key in the RatchetInfo
	// associated with the specified bundle ID and interlocutor identity public key.
	RatchetInfoConfirmed([]byte, []byte, string) error

	// GetActiveInstallations returns the active installations for a given identity.
	GetActiveInstallations(maxInstallations int, identity []byte) ([]*Installation, error)
	// AddInstallations adds the installations for a given identity.
	AddInstallations(identity []byte, timestamp int64, installations []*Installation, enabled bool) error
	// EnableInstallation enables the installation.
	EnableInstallation(identity []byte, installationID string) error
	// DisableInstallation disable the installation.
	DisableInstallation(identity []byte, installationID string) error
}

PersistenceService defines the interface for a storage service

type ProtocolMessage 

type ProtocolMessage struct {
	// An optional bundle is exchanged with each message
	Bundle *Bundle `protobuf:"bytes,1,opt,name=bundle,proto3" json:"bundle,omitempty"`
	// The device id of the sender
	InstallationId string `protobuf:"bytes,2,opt,name=installation_id,json=installationId,proto3" json:"installation_id,omitempty"`
	// List of bundles
	Bundles []*Bundle `protobuf:"bytes,3,rep,name=bundles,proto3" json:"bundles,omitempty"`
	// One to one message, encrypted, indexed by installation_id
	DirectMessage map[string]*DirectMessageProtocol `` /* 190-byte string literal not displayed */
	// Public chats, not encrypted
	PublicMessage        []byte   `protobuf:"bytes,102,opt,name=public_message,json=publicMessage,proto3" json:"public_message,omitempty"`
	XXX_NoUnkeyedLiteral struct{} `json:"-"`
	XXX_unrecognized     []byte   `json:"-"`
	XXX_sizecache        int32    `json:"-"`
}

Top-level protocol message

func (*ProtocolMessage) Descriptor 

func (*ProtocolMessage) Descriptor() ([]byte, []int)

func (*ProtocolMessage) GetBundle 

func (m *ProtocolMessage) GetBundle() *Bundle

func (*ProtocolMessage) GetBundles 

func (m *ProtocolMessage) GetBundles() []*Bundle

func (*ProtocolMessage) GetDirectMessage 

func (m *ProtocolMessage) GetDirectMessage() map[string]*DirectMessageProtocol

func (*ProtocolMessage) GetInstallationId added in v0.16.4 

func (m *ProtocolMessage) GetInstallationId() string

func (*ProtocolMessage) GetPublicMessage 

func (m *ProtocolMessage) GetPublicMessage() []byte

func (*ProtocolMessage) ProtoMessage 

func (*ProtocolMessage) ProtoMessage()

func (*ProtocolMessage) Reset 

func (m *ProtocolMessage) Reset()

func (*ProtocolMessage) String 

func (m *ProtocolMessage) String() string

func (*ProtocolMessage) XXX_DiscardUnknown 

func (m *ProtocolMessage) XXX_DiscardUnknown()

func (*ProtocolMessage) XXX_Marshal 

func (m *ProtocolMessage) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*ProtocolMessage) XXX_Merge 

func (m *ProtocolMessage) XXX_Merge(src proto.Message)

func (*ProtocolMessage) XXX_Size 

func (m *ProtocolMessage) XXX_Size() int

func (*ProtocolMessage) XXX_Unmarshal 

func (m *ProtocolMessage) XXX_Unmarshal(b []byte) error

type ProtocolMessageSpec 

type ProtocolMessageSpec struct {
	Message *ProtocolMessage
	// Installations is the targeted devices
	Installations []*Installation
	// SharedSecret is a shared secret established among the installations
	SharedSecret []byte
}

func (*ProtocolMessageSpec) MinVersion 

func (p *ProtocolMessageSpec) MinVersion() uint32

func (*ProtocolMessageSpec) PartitionedTopic 

func (p *ProtocolMessageSpec) PartitionedTopic() bool

type ProtocolService 

type ProtocolService struct {
	Enabled bool
	// contains filtered or unexported fields
}

func NewProtocolService 

func NewProtocolService(encryption *EncryptionService, topic *topic.Service, addedBundlesHandler func([]IdentityAndIDPair), onNewTopicHandler func([]*topic.Secret)) *ProtocolService

NewProtocolService creates a new ProtocolService instance

func (*ProtocolService) BuildDHMessage 

func (p *ProtocolService) BuildDHMessage(myIdentityKey *ecdsa.PrivateKey, destination *ecdsa.PublicKey, payload []byte) (*ProtocolMessage, error)

BuildDHMessage builds a message with DH encryption so that it can be decrypted by any other device.

func (*ProtocolService) BuildDirectMessage 

func (p *ProtocolService) BuildDirectMessage(myIdentityKey *ecdsa.PrivateKey, publicKey *ecdsa.PublicKey, payload []byte) (*ProtocolMessageSpec, error)

BuildDirectMessage returns a 1:1 chat message and optionally a negotiated topic given the user identity private key, the recipient's public key, and a payload

func (*ProtocolService) BuildPublicMessage 

func (p *ProtocolService) BuildPublicMessage(myIdentityKey *ecdsa.PrivateKey, payload []byte) (*ProtocolMessage, error)

BuildPublicMessage marshals a public chat message given the user identity private key and a payload

func (*ProtocolService) ConfirmMessagesProcessed 

func (p *ProtocolService) ConfirmMessagesProcessed(messageIDs [][]byte) error

ConfirmMessagesProcessed confirms and deletes message keys for the given messages

func (*ProtocolService) DisableInstallation 

func (p *ProtocolService) DisableInstallation(myIdentityKey *ecdsa.PublicKey, installationID string) error

DisableInstallation disables an installation for multi-device sync.

func (*ProtocolService) EnableInstallation 

func (p *ProtocolService) EnableInstallation(myIdentityKey *ecdsa.PublicKey, installationID string) error

EnableInstallation enables an installation for multi-device sync.

func (*ProtocolService) GetBundle 

func (p *ProtocolService) GetBundle(myIdentityKey *ecdsa.PrivateKey) (*Bundle, error)

GetBundle retrieves or creates a X3DH bundle, given a private identity key.

func (*ProtocolService) GetPublicBundle 

func (p *ProtocolService) GetPublicBundle(theirIdentityKey *ecdsa.PublicKey) (*Bundle, error)

GetPublicBundle retrieves a public bundle given an identity

func (*ProtocolService) HandleMessage 

func (p *ProtocolService) HandleMessage(myIdentityKey *ecdsa.PrivateKey, theirPublicKey *ecdsa.PublicKey, protocolMessage *ProtocolMessage, messageID []byte) ([]byte, error)

HandleMessage unmarshals a message and processes it, decrypting it if it is a 1:1 message.

func (*ProtocolService) ProcessPublicBundle 

func (p *ProtocolService) ProcessPublicBundle(myIdentityKey *ecdsa.PrivateKey, bundle *Bundle) ([]IdentityAndIDPair, error)

ProcessPublicBundle processes a received X3DH bundle.

type RatchetInfo 

type RatchetInfo struct {
	ID             []byte
	Sk             []byte
	PrivateKey     []byte
	PublicKey      []byte
	Identity       []byte
	BundleID       []byte
	EphemeralKey   []byte
	InstallationID string
}

RatchetInfo holds the current ratchet state

type SQLLiteKeysStorage 

type SQLLiteKeysStorage struct {
	// contains filtered or unexported fields
}

SQLLiteKeysStorage represents a keys persistence service tied to an SQLite database

func NewSQLLiteKeysStorage 

func NewSQLLiteKeysStorage(db *sql.DB) *SQLLiteKeysStorage

NewSQLLiteKeysStorage creates a new SQLLiteKeysStorage instance associated with the specified database

func (*SQLLiteKeysStorage) All 

func (s *SQLLiteKeysStorage) All() (map[dr.Key]map[uint]dr.Key, error)

All returns nil

func (*SQLLiteKeysStorage) Count 

func (s *SQLLiteKeysStorage) Count(pubKey dr.Key) (uint, error)

Count returns the count of keys with the specified public key

func (*SQLLiteKeysStorage) CountAll 

func (s *SQLLiteKeysStorage) CountAll() (uint, error)

CountAll returns the count of keys with the specified public key

func (*SQLLiteKeysStorage) DeleteMk 

func (s *SQLLiteKeysStorage) DeleteMk(pubKey dr.Key, msgNum uint) error

DeleteMk deletes the key with the specified public key and message key

func (*SQLLiteKeysStorage) DeleteOldMks 

func (s *SQLLiteKeysStorage) DeleteOldMks(sessionID []byte, deleteUntil uint) error

DeleteOldMks caps remove any key < seq_num, included

func (*SQLLiteKeysStorage) Get 

func (s *SQLLiteKeysStorage) Get(pubKey dr.Key, msgNum uint) (dr.Key, bool, error)

Get retrieves the message key for a specified public key and message number

func (*SQLLiteKeysStorage) Put 

func (s *SQLLiteKeysStorage) Put(sessionID []byte, pubKey dr.Key, msgNum uint, mk dr.Key, seqNum uint) error

Put stores a key with the specified public key, message number and message key

func (*SQLLiteKeysStorage) TruncateMks 

func (s *SQLLiteKeysStorage) TruncateMks(sessionID []byte, maxKeysPerSession int) error

TruncateMks caps the number of keys to maxKeysPerSession deleting them in FIFO fashion

type SQLLitePersistence 

type SQLLitePersistence struct {
	// contains filtered or unexported fields
}

SQLLitePersistence represents a persistence service tied to an SQLite database

func NewSQLLitePersistence 

func NewSQLLitePersistence(path string, key string) (*SQLLitePersistence, error)

NewSQLLitePersistence creates a new SQLLitePersistence instance, given a path and a key

func (*SQLLitePersistence) AddInstallations 

func (s *SQLLitePersistence) AddInstallations(identity []byte, timestamp int64, installations []*Installation, defaultEnabled bool) error

AddInstallations adds the installations for a given identity, maintaining the enabled flag

func (*SQLLitePersistence) AddPrivateBundle 

func (s *SQLLitePersistence) AddPrivateBundle(bc *BundleContainer) error

AddPrivateBundle adds the specified BundleContainer to the database

func (*SQLLitePersistence) AddPublicBundle 

func (s *SQLLitePersistence) AddPublicBundle(b *Bundle) error

AddPublicBundle adds the specified Bundle to the database

func (*SQLLitePersistence) AddRatchetInfo 

func (s *SQLLitePersistence) AddRatchetInfo(key []byte, identity []byte, bundleID []byte, ephemeralKey []byte, installationID string) error

AddRatchetInfo persists the specified ratchet info into the database

func (*SQLLitePersistence) DisableInstallation 

func (s *SQLLitePersistence) DisableInstallation(identity []byte, installationID string) error

DisableInstallation disable the installation

func (*SQLLitePersistence) EnableInstallation 

func (s *SQLLitePersistence) EnableInstallation(identity []byte, installationID string) error

EnableInstallation enables the installation

func (*SQLLitePersistence) GetActiveInstallations 

func (s *SQLLitePersistence) GetActiveInstallations(maxInstallations int, identity []byte) ([]*Installation, error)

GetActiveInstallations returns the active installations for a given identity

func (*SQLLitePersistence) GetAnyPrivateBundle 

func (s *SQLLitePersistence) GetAnyPrivateBundle(myIdentityKey []byte, installations []*Installation) (*BundleContainer, error)

GetAnyPrivateBundle retrieves any bundle from the database containing a private key

func (*SQLLitePersistence) GetAnyRatchetInfo 

func (s *SQLLitePersistence) GetAnyRatchetInfo(identity []byte, installationID string) (*RatchetInfo, error)

GetAnyRatchetInfo retrieves any existing RatchetInfo for a specified interlocutor public key from the database

func (*SQLLitePersistence) GetKeysStorage 

func (s *SQLLitePersistence) GetKeysStorage() dr.KeysStorage

GetKeysStorage returns the associated double ratchet KeysStorage object

func (*SQLLitePersistence) GetPrivateKeyBundle 

func (s *SQLLitePersistence) GetPrivateKeyBundle(bundleID []byte) ([]byte, error)

GetPrivateKeyBundle retrieves a private key for a bundle from the database

func (*SQLLitePersistence) GetPublicBundle 

func (s *SQLLitePersistence) GetPublicBundle(publicKey *ecdsa.PublicKey, installations []*Installation) (*Bundle, error)

GetPublicBundle retrieves an existing Bundle for the specified public key from the database

func (*SQLLitePersistence) GetRatchetInfo 

func (s *SQLLitePersistence) GetRatchetInfo(bundleID []byte, theirIdentity []byte, installationID string) (*RatchetInfo, error)

GetRatchetInfo retrieves the existing RatchetInfo for a specified bundle ID and interlocutor public key from the database

func (*SQLLitePersistence) GetSessionStorage 

func (s *SQLLitePersistence) GetSessionStorage() dr.SessionStorage

GetSessionStorage returns the associated double ratchet SessionStorage object

func (*SQLLitePersistence) GetTopicStorage 

func (s *SQLLitePersistence) GetTopicStorage() topic.PersistenceService

GetTopicStorage returns the associated topicStorageObject

func (*SQLLitePersistence) MarkBundleExpired 

func (s *SQLLitePersistence) MarkBundleExpired(identity []byte) error

MarkBundleExpired expires any private bundle for a given identity

func (*SQLLitePersistence) Open 

func (s *SQLLitePersistence) Open(path string, key string) error

Open opens a file at the specified path

func (*SQLLitePersistence) RatchetInfoConfirmed 

func (s *SQLLitePersistence) RatchetInfoConfirmed(bundleID []byte, theirIdentity []byte, installationID string) error

RatchetInfoConfirmed clears the ephemeral key in the RatchetInfo associated with the specified bundle ID and interlocutor identity public key

type SQLLiteSessionStorage 

type SQLLiteSessionStorage struct {
	// contains filtered or unexported fields
}

SQLLiteSessionStorage represents a session persistence service tied to an SQLite database

func NewSQLLiteSessionStorage 

func NewSQLLiteSessionStorage(db *sql.DB) *SQLLiteSessionStorage

NewSQLLiteSessionStorage creates a new SQLLiteSessionStorage instance associated with the specified database

func (*SQLLiteSessionStorage) Load 

func (s *SQLLiteSessionStorage) Load(id []byte) (*dr.State, error)

Load retrieves the double ratchet state for a given ID

func (*SQLLiteSessionStorage) Save 

func (s *SQLLiteSessionStorage) Save(id []byte, state *dr.State) error

Save persists the specified double ratchet state

type SendDirectMessageRPC 

type SendDirectMessageRPC struct {
	Sig     string
	Chat    string
	Payload hexutil.Bytes
	PubKey  hexutil.Bytes
	DH      bool
}

SendDirectMessageRPC represents the RPC payload for the SendDirectMessage RPC method

type SendPublicMessageRPC 

type SendPublicMessageRPC struct {
	Sig     string
	Chat    string
	Payload hexutil.Bytes
}

SendPublicMessageRPC represents the RPC payload for the SendPublicMessage RPC method

type SignedPreKey 

type SignedPreKey struct {
	SignedPreKey         []byte   `protobuf:"bytes,1,opt,name=signed_pre_key,json=signedPreKey,proto3" json:"signed_pre_key,omitempty"`
	Version              uint32   `protobuf:"varint,2,opt,name=version,proto3" json:"version,omitempty"`
	ProtocolVersion      uint32   `protobuf:"varint,3,opt,name=protocol_version,json=protocolVersion,proto3" json:"protocol_version,omitempty"`
	XXX_NoUnkeyedLiteral struct{} `json:"-"`
	XXX_unrecognized     []byte   `json:"-"`
	XXX_sizecache        int32    `json:"-"`
}

func (*SignedPreKey) Descriptor 

func (*SignedPreKey) Descriptor() ([]byte, []int)

func (*SignedPreKey) GetProtocolVersion 

func (m *SignedPreKey) GetProtocolVersion() uint32

func (*SignedPreKey) GetSignedPreKey 

func (m *SignedPreKey) GetSignedPreKey() []byte

func (*SignedPreKey) GetVersion 

func (m *SignedPreKey) GetVersion() uint32

func (*SignedPreKey) ProtoMessage 

func (*SignedPreKey) ProtoMessage()

func (*SignedPreKey) Reset 

func (m *SignedPreKey) Reset()

func (*SignedPreKey) String 

func (m *SignedPreKey) String() string

func (*SignedPreKey) XXX_DiscardUnknown 

func (m *SignedPreKey) XXX_DiscardUnknown()

func (*SignedPreKey) XXX_Marshal 

func (m *SignedPreKey) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*SignedPreKey) XXX_Merge 

func (m *SignedPreKey) XXX_Merge(src proto.Message)

func (*SignedPreKey) XXX_Size 

func (m *SignedPreKey) XXX_Size() int

func (*SignedPreKey) XXX_Unmarshal 

func (m *SignedPreKey) XXX_Unmarshal(b []byte) error

type X3DHHeader 

type X3DHHeader struct {
	// Ephemeral key used
	Key []byte `protobuf:"bytes,1,opt,name=key,proto3" json:"key,omitempty"`
	// Used bundle's signed prekey
	Id                   []byte   `protobuf:"bytes,4,opt,name=id,proto3" json:"id,omitempty"`
	XXX_NoUnkeyedLiteral struct{} `json:"-"`
	XXX_unrecognized     []byte   `json:"-"`
	XXX_sizecache        int32    `json:"-"`
}

func (*X3DHHeader) Descriptor 

func (*X3DHHeader) Descriptor() ([]byte, []int)

func (*X3DHHeader) GetId 

func (m *X3DHHeader) GetId() []byte

func (*X3DHHeader) GetKey 

func (m *X3DHHeader) GetKey() []byte

func (*X3DHHeader) ProtoMessage 

func (*X3DHHeader) ProtoMessage()

func (*X3DHHeader) Reset 

func (m *X3DHHeader) Reset()

func (*X3DHHeader) String 

func (m *X3DHHeader) String() string

func (*X3DHHeader) XXX_DiscardUnknown 

func (m *X3DHHeader) XXX_DiscardUnknown()

func (*X3DHHeader) XXX_Marshal 

func (m *X3DHHeader) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*X3DHHeader) XXX_Merge 

func (m *X3DHHeader) XXX_Merge(src proto.Message)

func (*X3DHHeader) XXX_Size 

func (m *X3DHHeader) XXX_Size() int

func (*X3DHHeader) XXX_Unmarshal 

func (m *X3DHHeader) XXX_Unmarshal(b []byte) error

Source Files

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Directories

Path Synopsis
db
migrations

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