HRSS: Init

13.go

@@ -121,6 +121,7 @@ type kexNIST struct{ defaultServerKEX }     // Used by NIST curves; P-256, P-384
 type kexX25519 struct{ defaultServerKEX }   // Used by X25519
 type kexSIDHp503 struct{ defaultServerKEX } // Used by SIDH/P503
 type kexSIKEp503 struct{}                   // Used by SIKE/P503
+type kexHRSS struct{}                       // Used by HRSS
 type kexHybridSIDHp503X25519 struct {
 	defaultServerKEX
 	classicKEX kexX25519
@@ -132,6 +133,11 @@ type kexHybridSIKEp503X25519 struct {
 	pqKEX      kexSIKEp503
 } // Used by SIKE-ECDHE hybrid scheme
 
+type kexHybridHRSSCurve25519 struct {
+	classicKEX kexX25519
+	pqKEX      kexHRSS
+} // Used by HRSS-ECDHE hybrid scheme
+
 // Routing map for key exchange strategies
 var kexStrat = map[CurveID]kex{
 	CurveP256:                &kexNIST{},
@@ -140,6 +146,7 @@ var kexStrat = map[CurveID]kex{
 	X25519:                   &kexX25519{},
 	HybridSIDHp503Curve25519: &kexHybridSIDHp503X25519{},
 	HybridSIKEp503Curve25519: &kexHybridSIKEp503X25519{},
+	HybridHRSSCurve25519:     &kexHybridHRSSCurve25519{},
 }
 
 func newKeySchedule13(suite *cipherSuite, config *Config, clientRandom []byte) *keySchedule13 {

common.go

@@ -125,6 +125,7 @@ const (
 	// Experimental KEX
 	HybridSIDHp503Curve25519 CurveID = 0xFE30
 	HybridSIKEp503Curve25519 CurveID = 0xFE32
+	HybridHRSSCurve25519     CurveID = 0x4138
 )
 
 // TLS 1.3 Key Share