diff --git a/composeApp/build.gradle.kts b/composeApp/build.gradle.kts
index 5c791657e..f762e8269 100644
--- a/composeApp/build.gradle.kts
+++ b/composeApp/build.gradle.kts
@@ -21,7 +21,7 @@ kotlin {
             implementation("com.google.zxing:javase:3.5.2")
             implementation("ch.qos.logback:logback-classic:1.4.11")
             implementation("io.javalin:javalin:5.6.3")
-            implementation("org.whispersystems:signal-protocol-java:2.8.1")
+            implementation("org.signal:libsignal-client:0.35.0")
         }
         commonMain.dependencies {
             implementation(compose.runtime)
diff --git a/composeApp/src/commonMain/kotlin/com/clipevery/encrypt/SignalProtocol.kt b/composeApp/src/commonMain/kotlin/com/clipevery/encrypt/SignalProtocol.kt
index a0bdbac8b..f5e851f86 100644
--- a/composeApp/src/commonMain/kotlin/com/clipevery/encrypt/SignalProtocol.kt
+++ b/composeApp/src/commonMain/kotlin/com/clipevery/encrypt/SignalProtocol.kt
@@ -1,16 +1,16 @@
 package com.clipevery.encrypt
 
-import org.whispersystems.libsignal.IdentityKeyPair
-import org.whispersystems.libsignal.state.IdentityKeyStore
-import org.whispersystems.libsignal.state.PreKeyRecord
-import org.whispersystems.libsignal.state.PreKeyStore
-import org.whispersystems.libsignal.state.SessionStore
-import org.whispersystems.libsignal.state.SignedPreKeyRecord
-import org.whispersystems.libsignal.state.SignedPreKeyStore
-import org.whispersystems.libsignal.state.impl.InMemoryIdentityKeyStore
-import org.whispersystems.libsignal.state.impl.InMemoryPreKeyStore
-import org.whispersystems.libsignal.state.impl.InMemorySessionStore
-import org.whispersystems.libsignal.state.impl.InMemorySignedPreKeyStore
+import org.signal.libsignal.protocol.IdentityKeyPair
+import org.signal.libsignal.protocol.state.IdentityKeyStore
+import org.signal.libsignal.protocol.state.PreKeyRecord
+import org.signal.libsignal.protocol.state.PreKeyStore
+import org.signal.libsignal.protocol.state.SessionStore
+import org.signal.libsignal.protocol.state.SignedPreKeyRecord
+import org.signal.libsignal.protocol.state.SignedPreKeyStore
+import org.signal.libsignal.protocol.state.impl.InMemoryIdentityKeyStore
+import org.signal.libsignal.protocol.state.impl.InMemoryPreKeyStore
+import org.signal.libsignal.protocol.state.impl.InMemorySessionStore
+import org.signal.libsignal.protocol.state.impl.InMemorySignedPreKeyStore
 
 interface SignalProtocol {
     val identityKeyPair: IdentityKeyPair
diff --git a/composeApp/src/commonMain/kotlin/com/clipevery/model/AppRequestBindInfo.kt b/composeApp/src/commonMain/kotlin/com/clipevery/model/AppRequestBindInfo.kt
index 6a16988da..ecbe7b26e 100644
--- a/composeApp/src/commonMain/kotlin/com/clipevery/model/AppRequestBindInfo.kt
+++ b/composeApp/src/commonMain/kotlin/com/clipevery/model/AppRequestBindInfo.kt
@@ -1,7 +1,7 @@
 package com.clipevery.model
 
 import com.clipevery.encrypt.base64Encode
-import org.whispersystems.libsignal.IdentityKey
+import org.signal.libsignal.protocol.IdentityKey
 import java.io.ByteArrayOutputStream
 import java.io.DataOutputStream
 
diff --git a/composeApp/src/desktopMain/kotlin/com/clipevery/encrypt/DesktopSignalProtocol.kt b/composeApp/src/desktopMain/kotlin/com/clipevery/encrypt/DesktopSignalProtocol.kt
index b5df2aee8..b74c9b034 100644
--- a/composeApp/src/desktopMain/kotlin/com/clipevery/encrypt/DesktopSignalProtocol.kt
+++ b/composeApp/src/desktopMain/kotlin/com/clipevery/encrypt/DesktopSignalProtocol.kt
@@ -1,12 +1,39 @@
 package com.clipevery.encrypt
 
-import org.whispersystems.libsignal.IdentityKeyPair
-import org.whispersystems.libsignal.state.PreKeyRecord
-import org.whispersystems.libsignal.state.SignedPreKeyRecord
-import org.whispersystems.libsignal.util.KeyHelper
+import org.signal.libsignal.protocol.IdentityKeyPair
+import org.signal.libsignal.protocol.InvalidKeyException
+import org.signal.libsignal.protocol.ecc.Curve
+import org.signal.libsignal.protocol.ecc.ECKeyPair
+import org.signal.libsignal.protocol.state.PreKeyRecord
+import org.signal.libsignal.protocol.state.SignedPreKeyRecord
+import org.signal.libsignal.protocol.util.KeyHelper
+import org.signal.libsignal.protocol.util.Medium
 import java.io.ByteArrayOutputStream
 import java.io.DataInputStream
 import java.io.DataOutputStream
+import java.util.LinkedList
+
+
+fun generatePreKeys(start: Int, count: Int): List<PreKeyRecord> {
+    var newStart = start
+    val results: MutableList<PreKeyRecord> = LinkedList()
+    newStart--
+    for (i in 0 until count) {
+        results.add(PreKeyRecord((newStart + i) % (Medium.MAX_VALUE - 1) + 1, Curve.generateKeyPair()))
+    }
+    return results
+}
+
+@Throws(InvalidKeyException::class)
+fun generateSignedPreKey(
+    identityKeyPair: IdentityKeyPair,
+    signedPreKeyId: Int
+): SignedPreKeyRecord {
+    val keyPair: ECKeyPair = Curve.generateKeyPair()
+    val signature =
+        Curve.calculateSignature(identityKeyPair.privateKey, keyPair.getPublicKey().serialize())
+    return SignedPreKeyRecord(signedPreKeyId, System.currentTimeMillis(), keyPair, signature)
+}
 
 class DesktopSignalProtocol(override val identityKeyPair: IdentityKeyPair,
                             override val registrationId: Int,
@@ -14,10 +41,16 @@ class DesktopSignalProtocol(override val identityKeyPair: IdentityKeyPair,
                             override val signedPreKey: SignedPreKeyRecord
     ): SignalProtocol {
 
-    constructor(): this(KeyHelper.generateIdentityKeyPair(),
+    constructor(): this(
+        IdentityKeyPair.generate(),
         KeyHelper.generateRegistrationId(false),
-        KeyHelper.generatePreKeys(0, 5),
-        KeyHelper.generateSignedPreKey(KeyHelper.generateIdentityKeyPair(), 5))
+        generatePreKeys(0, 5))
+
+    constructor(identityKeyPair:  IdentityKeyPair, registrationId: Int, preKeys: List<PreKeyRecord>):
+            this(identityKeyPair,
+                registrationId,
+                preKeys,
+                generateSignedPreKey(identityKeyPair, 5))
 }
 
 fun readSignalProtocol(data: ByteArray): SignalProtocol {
diff --git a/composeApp/src/desktopMain/kotlin/com/clipevery/encrypt/SessionStore.kt b/composeApp/src/desktopMain/kotlin/com/clipevery/encrypt/SessionStore.kt
deleted file mode 100644
index 48bbe73b8..000000000
--- a/composeApp/src/desktopMain/kotlin/com/clipevery/encrypt/SessionStore.kt
+++ /dev/null
@@ -1,31 +0,0 @@
-package com.clipevery.encrypt
-
-import org.whispersystems.libsignal.SignalProtocolAddress
-import org.whispersystems.libsignal.state.SessionRecord
-import org.whispersystems.libsignal.state.SessionStore
-
-class MacSessionStore: SessionStore {
-    override fun loadSession(address: SignalProtocolAddress?): SessionRecord {
-        TODO("Not yet implemented")
-    }
-
-    override fun getSubDeviceSessions(name: String?): MutableList<Int> {
-        TODO("Not yet implemented")
-    }
-
-    override fun storeSession(address: SignalProtocolAddress?, record: SessionRecord?) {
-        TODO("Not yet implemented")
-    }
-
-    override fun containsSession(address: SignalProtocolAddress?): Boolean {
-        TODO("Not yet implemented")
-    }
-
-    override fun deleteSession(address: SignalProtocolAddress?) {
-        TODO("Not yet implemented")
-    }
-
-    override fun deleteAllSessions(name: String?) {
-        TODO("Not yet implemented")
-    }
-}
\ No newline at end of file