diff --git a/um_crypto/kuwo/src/lib.rs b/um_crypto/kuwo/src/lib.rs
index 1136243..1df2933 100644
--- a/um_crypto/kuwo/src/lib.rs
+++ b/um_crypto/kuwo/src/lib.rs
@@ -112,7 +112,7 @@ impl Header {
         let cipher = match self.version {
             1 => Cipher::V1(CipherV1::new(self.resource_id)),
             2 => match ekey {
-                Some(ekey) => Cipher::V2(CipherV2::new(ekey)?),
+                Some(ekey) => Cipher::V2(CipherV2::new_from_ekey(ekey)?),
                 None => Err(KuwoCryptoError::V2EKeyRequired)?,
             },
             version => Err(KuwoCryptoError::UnsupportedVersion(version as usize))?,
@@ -134,9 +134,9 @@ impl Header {
 pub struct CipherBoDian(QMCv2Cipher);
 
 impl CipherBoDian {
-    pub fn new(ekey: &str) -> Result<Self> {
+    pub fn new<T: AsRef<[u8]>>(ekey: T) -> Result<Self> {
         let ekey = des::decode_ekey(&ekey, &SECRET_KEY)?;
-        let cipher = CipherV2::new(ekey)?;
+        let cipher = CipherV2::new_from_ekey(ekey.as_str())?;
         Ok(Self(cipher))
     }