diff --git a/data/auth.sqlite b/data/auth.sqlite
index 747de35..91bb6a1 100644
Binary files a/data/auth.sqlite and b/data/auth.sqlite differ
diff --git a/markbase-core/src/ssh_server/kex_exchange.rs b/markbase-core/src/ssh_server/kex_exchange.rs
index cd06187..a5963bf 100644
--- a/markbase-core/src/ssh_server/kex_exchange.rs
+++ b/markbase-core/src/ssh_server/kex_exchange.rs
@@ -125,6 +125,9 @@ impl KexExchangeHandler {
         host_key_blob: &[u8],
         server_public_key: &[u8],
     ) -> Result<SshPacket> {
+        info!("=== Building SSH_MSG_KEXDH_REPLY ===");
+        info!("Input server_public_key: {:?}", server_public_key);
+        
         let mut payload = Vec::new();
         
         payload.write_u8(PacketType::SSH_MSG_KEXDH_REPLY as u8)?;
@@ -132,6 +135,7 @@ impl KexExchangeHandler {
         payload.write_u32::<BigEndian>(host_key_blob.len() as u32)?;
         payload.write_all(host_key_blob)?;
         
+        info!("Writing server_public_key to payload (32 bytes)");
         payload.write_u32::<BigEndian>(32)?;
         payload.write_all(server_public_key)?;
         
@@ -139,6 +143,7 @@ impl KexExchangeHandler {
         payload.write_u32::<BigEndian>(signature.len() as u32)?;
         payload.write_all(&signature)?;
         
+        info!("SSH_MSG_KEXDH_REPLY payload built successfully");
         Ok(SshPacket::new(payload))
     }