diff --git a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/EncryptMethod.kt b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/EncryptMethod.kt
index 7684a8a4c..80d0d6141 100644
--- a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/EncryptMethod.kt
+++ b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/EncryptMethod.kt
@@ -19,9 +19,6 @@ import net.mamoe.mirai.utils.cryptor.ECDHKeyPair
 import net.mamoe.mirai.utils.io.encryptAndWrite
 import net.mamoe.mirai.utils.io.writeShortLVByteArray
 
-/**
- * Encryption method to be used for packet body.
- */
 @UseExperimental(ExperimentalUnsignedTypes::class)
 internal interface EncryptMethod {
     val id: Int
@@ -34,16 +31,6 @@ internal interface EncryptMethodSessionKey : EncryptMethod {
     val currentLoginState: Int
     val sessionKey: ByteArray
 
-    /**
-     * buildPacket{
-     *     byte 1
-     *     byte if (currentLoginState == 2) 3 else 2
-     *     fully key
-     *     short 258
-     *     short 0
-     *     fully encrypted
-     * }
-     */
     override fun makeBody(client: QQAndroidClient, body: BytePacketBuilder.() -> Unit): ByteReadPacket =
         buildPacket {
             require(currentLoginState == 2 || currentLoginState == 3) { "currentLoginState must be either 2 or 3" }
@@ -87,16 +74,6 @@ internal interface EncryptMethodECDH : EncryptMethod {
 
     val ecdh: ECDH
 
-    /**
-     * **Packet Structure**
-     * byte     1
-     * byte     1
-     * byte[]   [ECDH.privateKey]
-     * short    258
-     * short    [ECDH.publicKey].size
-     * byte[]   [ECDH.publicKey]
-     * byte[]   encrypted `body()` by [ECDH.shareKey]
-     */
     override fun makeBody(client: QQAndroidClient, body: BytePacketBuilder.() -> Unit): ByteReadPacket =
         buildPacket {
             writeByte(1) // const
@@ -104,19 +81,14 @@ internal interface EncryptMethodECDH : EncryptMethod {
             writeFully(client.randomKey)
             writeShort(258) // const
 
-            // writeShortLVByteArray("04 CB 36 66 98 56 1E 93 6E 80 C1 57 E0 74 CA B1 3B 0B B6 8D DE B2 82 45 48 A1 B1 8D D4 FB 61 22 AF E1 2F E4 8C 52 66 D8 D7 26 9D 76 51 A8 EB 6F E7".hexToBytes())
-
             if (ecdh.keyPair === ECDHKeyPair.DefaultStub) {
                 writeShortLVByteArray(ECDHKeyPair.DefaultStub.defaultPublicKey)
                 encryptAndWrite(ECDHKeyPair.DefaultStub.defaultShareKey, body)
             } else {
                 writeShortLVByteArray(ecdh.keyPair.publicKey.getEncoded().drop(23).take(49).toByteArray().also {
-                    // it.toUHexString().debugPrint("PUBLIC KEY")
                     check(it[0].toInt() == 0x04) { "Bad publicKey generated. Expected first element=0x04, got${it[0]}" }
-                    //check(ecdh.calculateShareKeyByPeerPublicKey(it.adjustToPublicKey()).contentEquals(ecdh.keyPair.shareKey)) { "PublicKey Validation failed" }
                 })
 
-                // encryptAndWrite("26 33 BA EC 86 EB 79 E6 BC E0 20 06 5E A9 56 6C".hexToBytes(), body)
                 encryptAndWrite(ecdh.keyPair.initialShareKey, body)
             }
         }