diff --git a/src/desfire/desfire.rs b/src/desfire/desfire.rs
index 53cdc4b..502db6c 100644
--- a/src/desfire/desfire.rs
+++ b/src/desfire/desfire.rs
@@ -13,9 +13,9 @@ use crate::iso7816_4::apduresponse::APDUResponse;
 use num_traits::FromPrimitive;
 
 pub struct Desfire {
-    card: Box<dyn Card>,
-    session_key: Option<Vec<u8>>,
-    cbc_iv: Option<Vec<u8>>,
+    pub card: Box<dyn Card>,
+    pub session_key: Option<Vec<u8>>,
+    pub cbc_iv: Option<Vec<u8>>,
 }
 
 impl Desfire {
@@ -227,7 +227,7 @@ impl Desfire {
     /// Format PICC
     /// Need Authentication for PICC / Application 0x000000
     /// </summary>
-    fn format_picc(&self) -> Result<()> {
+    pub fn format_picc(&self) -> Result<()> {
         let cmd_format = APDUCommand {
             case: IsoCase::Case2Short,
             cla: 0x90,
@@ -244,7 +244,7 @@ impl Desfire {
     /// Create Application for ApplicationID
     /// </summary>
     /// <param name="aid">3 Byte ID</param>
-    fn create_application(&self, aid: u32, keysetting1: u8, keysetting2: u8) -> Result<()> {
+    pub fn create_application(&self, aid: u32, keysetting1: u8, keysetting2: u8) -> Result<()> {
         if aid > 0xFFFFFF {
             return Err(InvalidApplicationID);
         }
@@ -271,7 +271,7 @@ impl Desfire {
     /// <param name="key_id">0x01 - 0x0D</param>
     /// <param name="new_key">Array of 16 Bytes</param>
     /// <param name="key_version">Version of Key(min. 0x10)</param>
-    fn change_key_aes(&mut self, key_id: u8, new_key: &[u8], key_version: u8) -> Result<()> {
+    pub fn change_key_aes(&mut self, key_id: u8, new_key: &[u8], key_version: u8) -> Result<()> {
         if key_id >= 0x0E {
             return Err(InvalidKeyID);
         }
@@ -331,7 +331,7 @@ impl Desfire {
     /// <param name="new_key">Array of 16 Bytes</param>
     /// <param name="old_key">Array of 16 Bytes</param>
     /// <param name="key_version">Version of Key(min. 0x10)</param>
-    fn change_other_key_aes(&mut self, key_id: u8, new_key: &[u8], old_key: &[u8], key_version: u8) -> Result<()> {
+    pub fn change_other_key_aes(&mut self, key_id: u8, new_key: &[u8], old_key: &[u8], key_version: u8) -> Result<()> {
         if key_id >= 0x0E {
             return Err(InvalidKeyID);
         }
@@ -393,7 +393,7 @@ impl Desfire {
         response.check()
     }
 
-    fn create_file_standard(&self, file_id: u8, communication: FileCommunication, access_rights: u16, size: u32) -> Result<()> {
+    pub fn create_file_standard(&self, file_id: u8, communication: FileCommunication, access_rights: u16, size: u32) -> Result<()> {
         if file_id >= 0x20 {
             return Err(InvalidFileID);
         }
@@ -413,6 +413,7 @@ impl Desfire {
         };
 
         let response = self.card.transmit(cmd_create_file_standard).unwrap();
+        println!("RESPONSE: {}", response);
 
         response.check()
     }
@@ -423,7 +424,7 @@ impl Desfire {
     /// <param name="file_id">ID of File (0x00 - 0x20)</param>
     /// <param name="offset">Offset for File</param>
     /// <param name="data">Data to write</param>
-    fn write_data(&self, file_id: u8, offset: u32, data: &[u8]) -> Result<()> {
+    pub fn write_data(&self, file_id: u8, offset: u32, data: &[u8]) -> Result<()> {
         if file_id >= 0x20 {
             return Err(InvalidFileID);
         }
@@ -475,7 +476,7 @@ impl Desfire {
     /// <param name="file_id">ID of File (0x00 - 0x20)</param>
     /// <param name="offset">Offset for File</param>
     /// <param name="length">Lenght of Data</param>
-    fn read_data(&self, file_id: u8, offset: u32, length: usize) -> Result<Vec<u8>> {
+    pub fn read_data(&self, file_id: u8, offset: u32, length: usize) -> Result<Vec<u8>> {
         if file_id >= 0x20 {
             return Err(InvalidFileID);
         }
@@ -509,6 +510,7 @@ impl Desfire {
             println!("RESPONSE: {}", response);
 
             response.check().or_else(|e| return Err(e));
+            // println!("RESPONSE_DATA: {:x?}, WITHOUT_CMAC: {:x?}", response.body.as_ref().unwrap(), response.body.as_ref().unwrap()[..bytes_toread].to_vec());
 
             read_buffer.append(&mut response.body.unwrap()[..bytes_toread].to_vec());
         };
@@ -542,7 +544,7 @@ fn generate_session_key_aes(rnd_a: &[u8], rnd_b: &[u8]) -> Option<Vec<u8>> {
 /// </summary>
 /// <param name="changeKey">ID of Key for changing Application Keys</param>
 /// <returns>generated keysettings</returns>
-fn generate_keysetting1(change_key: u8, change_masterkey_settings: ChangeMasterKeySettings, create_delete_file: CreateDeleteFile, file_directory_access: FileDirectoryAccess, change_master_key: ChangeMasterKey) -> Result<u8> {
+pub fn generate_keysetting1(change_key: u8, change_masterkey_settings: ChangeMasterKeySettings, create_delete_file: CreateDeleteFile, file_directory_access: FileDirectoryAccess, change_master_key: ChangeMasterKey) -> Result<u8> {
     return match FromPrimitive::from_u8(change_key) {
         Some(ChangeApplicationKey::MASTERKEY) | Some(ChangeApplicationKey::SAMEKEY) | Some(ChangeApplicationKey::ALLKEYS) => Ok((change_key << 4) | change_masterkey_settings as u8 | create_delete_file as u8 | file_directory_access as u8 | change_master_key as u8),
         None => {
@@ -560,7 +562,7 @@ fn generate_keysetting1(change_key: u8, change_masterkey_settings: ChangeMasterK
 /// </summary>
 /// <param name="numberOfKeys">Number of keys that can be stored within the application (0x01-0x0D)</param>
 /// <returns>generated keysettings</returns>
-fn generate_keysetting2(crypto_operations: CryptoOperationsType, file_identifier: FileIdentifiers, num_keys: u8) -> Result<u8> {
+pub fn generate_keysetting2(crypto_operations: CryptoOperationsType, file_identifier: FileIdentifiers, num_keys: u8) -> Result<u8> {
     return if num_keys < 0x01 || num_keys >= 0x0D {
         Err(NumKeys)
     } else {
@@ -576,7 +578,7 @@ fn generate_keysetting2(crypto_operations: CryptoOperationsType, file_identifier
 /// <param name="write">KeyID for Write Access</param>
 /// <param name="read_write">KeyID for Read and Write Access</param>
 /// <param name="configure">KeyID for Configuration Access</param>
-fn generate_file_access_rights(read: u8, write: u8, read_write: u8, configure: u8) -> Result<u16> {
+pub fn generate_file_access_rights(read: u8, write: u8, read_write: u8, configure: u8) -> Result<u16> {
     return if read > 0x0F || write >= 0x0F || read_write >= 0x0F || configure >= 0x0F {
         Err(InvalidKeyID)
     } else {
diff --git a/src/desfire/mod.rs b/src/desfire/mod.rs
index 2de8c1d..b37928e 100644
--- a/src/desfire/mod.rs
+++ b/src/desfire/mod.rs
@@ -166,4 +166,4 @@ pub enum FileTypes {
 
 mod apduinstructions;
 mod apdustatuscodes;
-mod desfire;
+pub mod desfire;