diff --git a/internal/handshake/aead_test.go b/internal/handshake/aead_test.go
index 0149045d..ef6a813c 100644
--- a/internal/handshake/aead_test.go
+++ b/internal/handshake/aead_test.go
@@ -7,6 +7,7 @@ import (
 	"fmt"
 
 	"github.com/lucas-clemente/quic-go/internal/protocol"
+	"github.com/marten-seemann/qtls"
 
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
@@ -16,7 +17,7 @@ var _ = Describe("Long Header AEAD", func() {
 	for i := range cipherSuites {
 		cs := cipherSuites[i]
 
-		Context(fmt.Sprintf("using %s", cipherSuiteName(cs.ID)), func() {
+		Context(fmt.Sprintf("using %s", qtls.CipherSuiteName(cs.ID)), func() {
 			getSealerAndOpener := func() (LongHeaderSealer, LongHeaderOpener) {
 				key := make([]byte, 16)
 				hpKey := make([]byte, 16)
diff --git a/internal/handshake/crypto_setup.go b/internal/handshake/crypto_setup.go
index e22df8c8..28ab87b4 100644
--- a/internal/handshake/crypto_setup.go
+++ b/internal/handshake/crypto_setup.go
@@ -562,7 +562,7 @@ func (h *cryptoSetup) SetReadKey(encLevel qtls.EncryptionLevel, suite *qtls.Ciph
 			newHeaderProtector(suite, trafficSecret, true),
 		)
 		h.mutex.Unlock()
-		h.logger.Debugf("Installed 0-RTT Read keys (using %s)", cipherSuiteName(suite.ID))
+		h.logger.Debugf("Installed 0-RTT Read keys (using %s)", qtls.CipherSuiteName(suite.ID))
 		return
 	case qtls.EncryptionHandshake:
 		h.readEncLevel = protocol.EncryptionHandshake
@@ -572,12 +572,12 @@ func (h *cryptoSetup) SetReadKey(encLevel qtls.EncryptionLevel, suite *qtls.Ciph
 			h.dropInitialKeys,
 			h.perspective,
 		)
-		h.logger.Debugf("Installed Handshake Read keys (using %s)", cipherSuiteName(suite.ID))
+		h.logger.Debugf("Installed Handshake Read keys (using %s)", qtls.CipherSuiteName(suite.ID))
 	case qtls.EncryptionApplication:
 		h.readEncLevel = protocol.Encryption1RTT
 		h.aead.SetReadKey(suite, trafficSecret)
 		h.has1RTTOpener = true
-		h.logger.Debugf("Installed 1-RTT Read keys (using %s)", cipherSuiteName(suite.ID))
+		h.logger.Debugf("Installed 1-RTT Read keys (using %s)", qtls.CipherSuiteName(suite.ID))
 	default:
 		panic("unexpected read encryption level")
 	}
@@ -597,7 +597,7 @@ func (h *cryptoSetup) SetWriteKey(encLevel qtls.EncryptionLevel, suite *qtls.Cip
 			newHeaderProtector(suite, trafficSecret, true),
 		)
 		h.mutex.Unlock()
-		h.logger.Debugf("Installed 0-RTT Write keys (using %s)", cipherSuiteName(suite.ID))
+		h.logger.Debugf("Installed 0-RTT Write keys (using %s)", qtls.CipherSuiteName(suite.ID))
 		return
 	case qtls.EncryptionHandshake:
 		h.writeEncLevel = protocol.EncryptionHandshake
@@ -607,12 +607,12 @@ func (h *cryptoSetup) SetWriteKey(encLevel qtls.EncryptionLevel, suite *qtls.Cip
 			h.dropInitialKeys,
 			h.perspective,
 		)
-		h.logger.Debugf("Installed Handshake Write keys (using %s)", cipherSuiteName(suite.ID))
+		h.logger.Debugf("Installed Handshake Write keys (using %s)", qtls.CipherSuiteName(suite.ID))
 	case qtls.EncryptionApplication:
 		h.writeEncLevel = protocol.Encryption1RTT
 		h.aead.SetWriteKey(suite, trafficSecret)
 		h.has1RTTSealer = true
-		h.logger.Debugf("Installed 1-RTT Write keys (using %s)", cipherSuiteName(suite.ID))
+		h.logger.Debugf("Installed 1-RTT Write keys (using %s)", qtls.CipherSuiteName(suite.ID))
 		if h.zeroRTTSealer != nil {
 			h.zeroRTTSealer = nil
 			h.logger.Debugf("Dropping 0-RTT keys.")
diff --git a/internal/handshake/qtls.go b/internal/handshake/qtls.go
index 5bc3ee06..85fea0cd 100644
--- a/internal/handshake/qtls.go
+++ b/internal/handshake/qtls.go
@@ -129,16 +129,3 @@ func qtlsConfigToTLSConfig(config *qtls.Config) *tls.Config {
 		CurvePreferences: config.CurvePreferences,
 	}
 }
-
-func cipherSuiteName(id uint16) string {
-	switch id {
-	case qtls.TLS_AES_128_GCM_SHA256:
-		return "TLS_AES_128_GCM_SHA256"
-	case qtls.TLS_CHACHA20_POLY1305_SHA256:
-		return "TLS_CHACHA20_POLY1305_SHA256"
-	case qtls.TLS_AES_256_GCM_SHA384:
-		return "TLS_AES_256_GCM_SHA384"
-	default:
-		return "unknown cipher suite"
-	}
-}
diff --git a/internal/handshake/updatable_aead_test.go b/internal/handshake/updatable_aead_test.go
index 65a9b789..28b26571 100644
--- a/internal/handshake/updatable_aead_test.go
+++ b/internal/handshake/updatable_aead_test.go
@@ -9,6 +9,8 @@ import (
 	"github.com/lucas-clemente/quic-go/internal/congestion"
 	"github.com/lucas-clemente/quic-go/internal/protocol"
 	"github.com/lucas-clemente/quic-go/internal/utils"
+	"github.com/marten-seemann/qtls"
+
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
 )
@@ -17,7 +19,7 @@ var _ = Describe("Updatable AEAD", func() {
 	for i := range cipherSuites {
 		cs := cipherSuites[i]
 
-		Context(fmt.Sprintf("using %s", cipherSuiteName(cs.ID)), func() {
+		Context(fmt.Sprintf("using %s", qtls.CipherSuiteName(cs.ID)), func() {
 
 			getPeers := func(rttStats *congestion.RTTStats) (client, server *updatableAEAD) {
 				trafficSecret1 := make([]byte, 16)