diff --git a/cr_enc_id.c b/cr_enc_id.c
index bb59ca8..8a3fc51 100644
--- a/cr_enc_id.c
+++ b/cr_enc_id.c
@@ -193,8 +193,7 @@ int crypto_aes_enc_dec( unsigned char *dst_buf, unsigned char *org_buf, u8 bondi
 	{
 		if( org_buf[i] != local_buf_2[i] )
 		{
-			printf( "error : aes verify\n" );
-			return 0;
+			return CR_GENID_ERROR_AES_VERIFY;
 		}
 	}
 	
@@ -221,13 +220,13 @@ int crypto_aes_enc_dec( unsigned char *dst_buf, unsigned char *org_buf, u8 bondi
 	if ( AES_set_encrypt_key( pAesKey, 128, &aesEncKey ) != 0 )
 	{
 		printf( "error : AES_set_encrypt_key\n" );
-		return 0;
+		return CR_GENID_ERROR_AES_ENC;
 	}
 	
 	if ( AES_set_decrypt_key( pAesKey, 128, &aesDecKey ) != 0 )
 	{
 		printf( "error : AES_set_decrypt_key\n" );
-		return 0;
+		return CR_GENID_ERROR_AES_DEC;
 	}
 	
 	memcpy( temp_iv, pIV, 16 );
@@ -241,8 +240,7 @@ int crypto_aes_enc_dec( unsigned char *dst_buf, unsigned char *org_buf, u8 bondi
 	{
 		if( org_buf[i] != local_buf_2[i] )
 		{
-			printf( "error : aes verify\n" );
-			return 0;
+			return CR_GENID_ERROR_AES_VERIFY;
 		}
 	}
 	
@@ -284,7 +282,7 @@ int crypto_rsa_enc_dec( unsigned char *dst_buf,unsigned char *org_buf, u8 bondin
 	{
 		if( org_buf[i] != local_buf_2[i] )
 		{
-			return CR_GENID_ERROR_AES_VERIFY;
+			return CR_GENID_ERROR_RSA_VERIFY;
 		}
 	}