Remove unused function, fix spelling, update godoc

README.md

@@ -48,8 +48,8 @@ please keep up with these changes, as they will not be backward compatible and r
   - [ ] Message parsing
   - [ ] Message handling
 - NetDB
-  - [/] Local storage
-  - [/] Persistence to disk
+  - [~] Local storage
+  - [~] Persistence to disk
   - [X] Reseeding
   - [ ] Lookups
   - [ ] Expiry

lib/transport/README.md

@@ -79,7 +79,7 @@ close every transport that this transport muxer has
 ```go
 func (tmux *TransportMuxer) Compatible(routerInfo router_info.RouterInfo) (compat bool)
 ```
-is there a transport that we mux that is compatable with this router info?
+is there a transport that we mux that is compatible with this router info?
 
 #### func (*TransportMuxer) GetSession
 

lib/transport/handshake/README.md

@@ -23,11 +23,48 @@ type HandshakeState interface {
 
 	// CompleteHandshake completes the handshake
 	CompleteHandshake() error
+
+	SetEphemeralTransformer(transformer KeyTransformer)
+	GetHandshakeHash() []byte
+	SetPrologue(prologue []byte) error
+	MixHash(data []byte) error
+	MixKey(input []byte) ([]byte, error)
 }
 ```
 
 HandshakeState manages the Noise handshake state
 
+#### type KeyTransformer
+
+```go
+type KeyTransformer interface {
+	ObfuscateKey(publicKey []byte) ([]byte, error)
+	DeobfuscateKey(obfuscatedKey []byte) ([]byte, error)
+}
+```
+
+KeyTransformer defines operations for transforming keys during handshake
+
+#### type NoOpTransformer
+
+```go
+type NoOpTransformer struct{}
+```
+
+NoOpTransformer is a default implementation that doesn't transform keys
+
+#### func (*NoOpTransformer) DeobfuscateKey
+
+```go
+func (t *NoOpTransformer) DeobfuscateKey(obfuscatedKey []byte) ([]byte, error)
+```
+
+#### func (*NoOpTransformer) ObfuscateKey
+
+```go
+func (t *NoOpTransformer) ObfuscateKey(publicKey []byte) ([]byte, error)
+```
+
 
 
 handshake 

lib/transport/multi.go

@@ -74,7 +74,7 @@ func (tmux *TransportMuxer) Name() string {
 func (tmux *TransportMuxer) GetSession(routerInfo router_info.RouterInfo) (s TransportSession, err error) {
 	log.WithField("router_info", routerInfo.String()).Debug("TransportMuxer: Attempting to get session")
 	for i, t := range tmux.trans {
-		// pick the first one that is compatable
+		// pick the first one that is compatible
 		if t.Compatible(routerInfo) {
 			log.WithField("transport_index", i).Debug("TransportMuxer: Found compatible transport, attempting to get session")
 			// try to get a session
@@ -96,7 +96,7 @@ func (tmux *TransportMuxer) GetSession(routerInfo router_info.RouterInfo) (s Tra
 	return
 }
 
-// is there a transport that we mux that is compatable with this router info?
+// is there a transport that we mux that is compatible with this router info?
 func (tmux *TransportMuxer) Compatible(routerInfo router_info.RouterInfo) (compat bool) {
 	log.WithField("router_info", routerInfo.String()).Debug("TransportMuxer: Checking compatibility")
 	for i, t := range tmux.trans {

lib/transport/noise/README.md

@@ -45,70 +45,17 @@ var (
 func NewNoiseTransportSession(ri router_info.RouterInfo) (transport.TransportSession, error)
 ```
 
-#### type NoiseHandshakeState
-
-```go
-type NoiseHandshakeState struct {
-	*noise.HandshakeState
-}
-```
-
-
-#### func  NewHandshakeState
-
-```go
-func NewHandshakeState(staticKey noise.DHKey, isInitiator bool) (*NoiseHandshakeState, error)
-```
-
-#### func (*NoiseHandshakeState) CompleteHandshake
-
-```go
-func (h *NoiseHandshakeState) CompleteHandshake() error
-```
-
-#### func (*NoiseHandshakeState) GenerateEphemeral
-
-```go
-func (h *NoiseHandshakeState) GenerateEphemeral() (*noise.DHKey, error)
-```
-GenerateEphemeral creates the ephemeral keypair that will be used in handshake
-This needs to be separate so NTCP2 can obfuscate it
-
-#### func (*NoiseHandshakeState) HandshakeComplete
-
-```go
-func (h *NoiseHandshakeState) HandshakeComplete() bool
-```
-
-#### func (*NoiseHandshakeState) ReadMessage
-
-```go
-func (h *NoiseHandshakeState) ReadMessage(message []byte) ([]byte, *noise.CipherState, *noise.CipherState, error)
-```
-
-#### func (*NoiseHandshakeState) SetEphemeral
-
-```go
-func (h *NoiseHandshakeState) SetEphemeral(key *noise.DHKey) error
-```
-SetEphemeral allows setting a potentially modified ephemeral key This is needed
-for NTCP2's obfuscation layer
-
-#### func (*NoiseHandshakeState) WriteMessage
-
-```go
-func (h *NoiseHandshakeState) WriteMessage(payload []byte) ([]byte, *noise.CipherState, *noise.CipherState, error)
-```
-
 #### type NoiseSession
 
 ```go
 type NoiseSession struct {
 	router_info.RouterInfo
+	handshake.HandshakeState
+
 	*noise.CipherState
 	*sync.Cond
 	*NoiseTransport // The parent transport, which "Dialed" the connection to the peer with whom we established the session
-	handshake.HandshakeState
+
 	RecvQueue      *cb.Queue
 	SendQueue      *cb.Queue
 	VerifyCallback VerifyCallbackFunc
@@ -275,13 +222,6 @@ func (noopt *NoiseTransport) Close() error
 ```
 close the transport cleanly blocks until done returns an error if one happens
 
-#### func (*NoiseTransport) Compatable
-
-```go
-func (noopt *NoiseTransport) Compatable(routerInfo router_info.RouterInfo) bool
-```
-Compatable return true if a routerInfo is compatable with this transport
-
 #### func (*NoiseTransport) Compatible
 
 ```go

lib/transport/noise/handshake/README.md

@@ -0,0 +1,179 @@
+# handshake
+--
+    import "github.com/go-i2p/go-i2p/lib/transport/noise/handshake"
+
+![handshake.svg](handshake.svg)
+
+
+
+## Usage
+
+#### type HandshakeBuilder
+
+```go
+type HandshakeBuilder struct {
+}
+```
+
+HandshakeBuilder constructs customized HandshakeState instances
+
+#### func  NewHandshakeBuilder
+
+```go
+func NewHandshakeBuilder() *HandshakeBuilder
+```
+NewHandshakeBuilder creates a new HandshakeBuilder with default values
+
+#### func (*HandshakeBuilder) AsInitiator
+
+```go
+func (b *HandshakeBuilder) AsInitiator(isInitiator bool) *HandshakeBuilder
+```
+AsInitiator sets this handshake as the initiator
+
+#### func (*HandshakeBuilder) Build
+
+```go
+func (b *HandshakeBuilder) Build() (handshake.HandshakeState, error)
+```
+Build creates a configured HandshakeState
+
+#### func (*HandshakeBuilder) WithKeyTransformer
+
+```go
+func (b *HandshakeBuilder) WithKeyTransformer(transformer handshake.KeyTransformer) *HandshakeBuilder
+```
+WithKeyTransformer sets a custom key transformer
+
+#### func (*HandshakeBuilder) WithPattern
+
+```go
+func (b *HandshakeBuilder) WithPattern(pattern noise.HandshakePattern) *HandshakeBuilder
+```
+WithPattern sets the handshake pattern
+
+#### func (*HandshakeBuilder) WithPeerStaticKey
+
+```go
+func (b *HandshakeBuilder) WithPeerStaticKey(key []byte) *HandshakeBuilder
+```
+WithPeerStaticKey sets the peer's static key
+
+#### func (*HandshakeBuilder) WithPrologue
+
+```go
+func (b *HandshakeBuilder) WithPrologue(prologue []byte) *HandshakeBuilder
+```
+WithPrologue sets the prologue data
+
+#### func (*HandshakeBuilder) WithStaticKey
+
+```go
+func (b *HandshakeBuilder) WithStaticKey(key noise.DHKey) *HandshakeBuilder
+```
+WithStaticKey sets the local static key
+
+#### type NoiseHandshakeState
+
+```go
+type NoiseHandshakeState struct {
+	noise.HandshakePattern
+	*noise.HandshakeState
+	handshake.KeyTransformer
+	*kdf.NoiseKDF
+}
+```
+
+HandshakeState wraps noise.HandshakeState with additional functionality
+
+#### func  NewHandshakeState
+
+```go
+func NewHandshakeState(staticKey noise.DHKey, isInitiator bool) (*NoiseHandshakeState, error)
+```
+
+#### func (*NoiseHandshakeState) CompleteHandshake
+
+```go
+func (hs *NoiseHandshakeState) CompleteHandshake() error
+```
+CompleteHandshake implements handshake.HandshakeState
+
+#### func (*NoiseHandshakeState) GenerateEphemeral
+
+```go
+func (hs *NoiseHandshakeState) GenerateEphemeral() (*noise.DHKey, error)
+```
+GenerateEphemeral implements handshake.HandshakeState
+
+#### func (*NoiseHandshakeState) GetHandshakeHash
+
+```go
+func (hs *NoiseHandshakeState) GetHandshakeHash() []byte
+```
+GetHandshakeHash implements handshake.HandshakeState
+
+#### func (*NoiseHandshakeState) HandshakeComplete
+
+```go
+func (hs *NoiseHandshakeState) HandshakeComplete() bool
+```
+HandshakeComplete implements handshake.HandshakeState
+
+#### func (*NoiseHandshakeState) MixHash
+
+```go
+func (hs *NoiseHandshakeState) MixHash(data []byte) error
+```
+MixHash implements handshake.HandshakeState
+
+#### func (*NoiseHandshakeState) MixKey
+
+```go
+func (hs *NoiseHandshakeState) MixKey(input []byte) ([]byte, error)
+```
+MixKey implements handshake.HandshakeState
+
+#### func (*NoiseHandshakeState) ReadMessage
+
+```go
+func (hs *NoiseHandshakeState) ReadMessage(message []byte) ([]byte, *noise.CipherState, *noise.CipherState, error)
+```
+ReadMessage implements handshake.HandshakeState
+
+#### func (*NoiseHandshakeState) SetEphemeral
+
+```go
+func (h *NoiseHandshakeState) SetEphemeral(key *noise.DHKey) error
+```
+SetEphemeral allows setting a potentially modified ephemeral key This is needed
+for NTCP2's obfuscation layer
+
+#### func (*NoiseHandshakeState) SetEphemeralTransformer
+
+```go
+func (hs *NoiseHandshakeState) SetEphemeralTransformer(transformer handshake.KeyTransformer)
+```
+SetEphemeralTransformer implements handshake.HandshakeState
+
+#### func (*NoiseHandshakeState) SetPrologue
+
+```go
+func (hs *NoiseHandshakeState) SetPrologue(prologue []byte) error
+```
+SetPrologue implements handshake.HandshakeState
+
+#### func (*NoiseHandshakeState) WriteMessage
+
+```go
+func (hs *NoiseHandshakeState) WriteMessage(payload []byte) ([]byte, *noise.CipherState, *noise.CipherState, error)
+```
+WriteMessage implements handshake.HandshakeState
+
+
+
+handshake 
+
+github.com/go-i2p/go-i2p/lib/transport/noise/handshake
+
+[go-i2p template file](/template.md)

lib/transport/noise/kdf/README.md

@@ -0,0 +1,67 @@
+# kdf
+--
+    import "github.com/go-i2p/go-i2p/lib/transport/noise/kdf"
+
+![kdf.svg](kdf.svg)
+
+
+
+## Usage
+
+#### type NoiseKDF
+
+```go
+type NoiseKDF struct {
+}
+```
+
+NoiseKDF handles key derivation functions for Noise protocols
+
+#### func  NewNoiseKDF
+
+```go
+func NewNoiseKDF(protocolName []byte) *NoiseKDF
+```
+NewNoiseKDF creates a new KDF instance with the protocol name
+
+#### func (*NoiseKDF) DeriveSessionKeys
+
+```go
+func (k *NoiseKDF) DeriveSessionKeys() (sendKey, recvKey []byte, err error)
+```
+DeriveSessionKeys derives transport keys from the KDF state
+
+#### func (*NoiseKDF) GetHandshakeHash
+
+```go
+func (k *NoiseKDF) GetHandshakeHash() []byte
+```
+GetHandshakeHash returns the current handshake hash
+
+#### func (*NoiseKDF) MixHash
+
+```go
+func (k *NoiseKDF) MixHash(data []byte) error
+```
+MixHash updates the handshake hash with new data
+
+#### func (*NoiseKDF) MixKey
+
+```go
+func (k *NoiseKDF) MixKey(input []byte) ([]byte, error)
+```
+MixKey derives a new key from the chaining key and input material
+
+#### func (*NoiseKDF) SetHash
+
+```go
+func (k *NoiseKDF) SetHash(hash []byte)
+```
+
+
+
+kdf 
+
+github.com/go-i2p/go-i2p/lib/transport/noise/kdf
+
+[go-i2p template file](/template.md)

lib/transport/noise/transport.go

@@ -156,16 +156,6 @@ func (c *NoiseTransport) getSession(routerInfo router_info.RouterInfo) (transpor
 	return session, nil
 }
 
-// Compatable return true if a routerInfo is compatable with this transport
-func (noopt *NoiseTransport) Compatable(routerInfo router_info.RouterInfo) bool {
-	_, ok := noopt.peerConnections[routerInfo.IdentHash()]
-	log.WithFields(logrus.Fields{
-		"router_info": routerInfo.String(),
-		"compatible":  ok,
-	}).Debug("NoiseTransport: Checking compatibility")
-	return ok
-}
-
 // close the transport cleanly
 // blocks until done
 // returns an error if one happens

lib/transport/ntcp/README.md

@@ -134,6 +134,13 @@ func NewNTCP2Session(routerInfo router_info.RouterInfo) (*NTCP2Session, error)
 NewNTCP2Session creates a new NTCP2 session using the existing noise
 implementation
 
+#### func (*NTCP2Session) AddDelayForSecurity
+
+```go
+func (c *NTCP2Session) AddDelayForSecurity()
+```
+addDelayForSecurity adds a small random delay to resist probing
+
 #### func (*NTCP2Session) CreateHandshakeProcessors
 
 ```go
@@ -279,6 +286,35 @@ SessionRequest (Message 1) 2. Receives and processes SessionCreated (Message 2)
 3. Creates and sends SessionConfirmed (Message 3) After successful completion,
 the session is established and ready for data exchange.
 
+#### func (*NTCP2Session) ProcessEphemeralKey
+
+```go
+func (c *NTCP2Session) ProcessEphemeralKey(obfuscatedX []byte, hs *handshake.HandshakeState) ([]byte, error)
+```
+processEphemeralKey deobfuscates and validates the ephemeral key
+
+#### func (*NTCP2Session) ReadAndValidatePadding
+
+```go
+func (c *NTCP2Session) ReadAndValidatePadding(conn net.Conn, paddingLen int) error
+```
+readAndValidatePadding reads the padding from the connection
+
+#### func (*NTCP2Session) ReadEphemeralKey
+
+```go
+func (c *NTCP2Session) ReadEphemeralKey(conn net.Conn) ([]byte, error)
+```
+readEphemeralKey reads the ephemeral key (X) from the connection
+
+#### func (*NTCP2Session) ValidateTimestamp
+
+```go
+func (s *NTCP2Session) ValidateTimestamp(timestamp time.Time) error
+```
+Add this method to NTCP2Session ValidateTimestamp validates a timestamp is
+within acceptable range
+
 #### type NTCP2Transport
 
 ```go
@@ -321,6 +357,13 @@ func (t *NTCP2Transport) Compatible(routerInfo router_info.RouterInfo) bool
 func (t *NTCP2Transport) GetSession(routerInfo router_info.RouterInfo) (transport.TransportSession, error)
 ```
 
+#### func (*NTCP2Transport) LocalStaticKey
+
+```go
+func (s *NTCP2Transport) LocalStaticKey() ([32]byte, error)
+```
+LocalStaticKey is equal to the NTCP2 static public key, found in our router info
+
 #### func (*NTCP2Transport) Name
 
 ```go

lib/transport/ntcp/handshake/README.md

@@ -83,6 +83,13 @@ func (h *HandshakeState) GenerateEphemeral() (*noise.DHKey, error)
 ```
 GenerateEphemeral implements handshake.HandshakeState.
 
+#### func (*HandshakeState) GetHandshakeHash
+
+```go
+func (h *HandshakeState) GetHandshakeHash() []byte
+```
+GetHandshakeHash implements handshake.HandshakeState.
+
 #### func (*HandshakeState) HandshakeComplete
 
 ```go
@@ -90,6 +97,34 @@ func (h *HandshakeState) HandshakeComplete() bool
 ```
 HandshakeComplete implements handshake.HandshakeState.
 
+#### func (*HandshakeState) MixHash
+
+```go
+func (h *HandshakeState) MixHash(data []byte) error
+```
+MixHash implements handshake.HandshakeState.
+
+#### func (*HandshakeState) MixKey
+
+```go
+func (h *HandshakeState) MixKey(input []byte) ([]byte, error)
+```
+MixKey implements handshake.HandshakeState.
+
+#### func (*HandshakeState) SetEphemeralTransformer
+
+```go
+func (h *HandshakeState) SetEphemeralTransformer(transformer handshake.KeyTransformer)
+```
+SetEphemeralTransformer implements handshake.HandshakeState.
+
+#### func (*HandshakeState) SetPrologue
+
+```go
+func (h *HandshakeState) SetPrologue(prologue []byte) error
+```
+SetPrologue implements handshake.HandshakeState.
+
 #### func (*HandshakeState) WriteMessage
 
 ```go