diff --git a/build/libraries/aes/ARM7/aes_init.c b/build/libraries/aes/ARM7/aes_init.c
index c9146fca..c48f3027 100644
--- a/build/libraries/aes/ARM7/aes_init.c
+++ b/build/libraries/aes/ARM7/aes_init.c
@@ -15,6 +15,7 @@
   $Author$
  *---------------------------------------------------------------------------*/
 
+#include <firm/os.h>
 #include <firm/aes.h>
 #include <firm/pxi.h>
 
@@ -23,6 +24,25 @@
 #define AES_IDS_ID0_D(c)    (((unsigned long)c[3] << 0) | ((unsigned long)c[2] << 8) | ((unsigned long)c[1] << 16) | ((unsigned long)c[0] << 24))
 
 
+/*---------------------------------------------------------------------------*
+  Name:         AESi_PreInitKeys
+
+  Description:  reset IDs preset by bootrom.
+                you SHOULD NOT touch any ID registers after this call.
+
+  Arguments:    None
+
+  Returns:      None
+ *---------------------------------------------------------------------------*/
+void AESi_PreInitKeys( void )
+{
+    AES_WaitKey();
+
+    reg_AES_AES_ID_B2 = reg_OS_CHIP_ID1 ^ *(const u32*)&OSi_GetFromFirmAddr()->aes_key[2][0];
+    reg_AES_AES_ID_D1 = reg_OS_CHIP_ID0 ^ *(const u32*)&OSi_GetFromFirmAddr()->aes_key[2][8];
+    reg_AES_AES_ID_D2 = reg_OS_CHIP_ID1 ^ *(const u32*)&OSi_GetFromFirmAddr()->aes_key[2][4];
+}
+
 /*---------------------------------------------------------------------------*
   Name:         AESi_InitKeysForApp
 
diff --git a/build/libraries/os/common/os_boot.c b/build/libraries/os/common/os_boot.c
index ce1c2462..f3a68145 100644
--- a/build/libraries/os/common/os_boot.c
+++ b/build/libraries/os/common/os_boot.c
@@ -79,7 +79,8 @@ void OS_BootWithRomHeaderFromFIRM( ROM_Header* rom_header )
         mem_list[i++] = stack_bottom - code_buf_end;
     }
     /* 一部鍵バッファのクリア (鍵管理.xls参照) */
-    // 該当無し
+    mem_list[i++] = (u32)OSi_GetFromFirmAddr()->aes_key[2];
+    mem_list[i++] = ACS_AES_LEN;
 #endif  // SDK_ARM7
     mem_list[i++] = NULL;
     // copy forward
diff --git a/build/nandfirm/menu-launcher/ARM7/main.c b/build/nandfirm/menu-launcher/ARM7/main.c
index f9ebb98d..13e16368 100644
--- a/build/nandfirm/menu-launcher/ARM7/main.c
+++ b/build/nandfirm/menu-launcher/ARM7/main.c
@@ -122,6 +122,15 @@ static void PreInit(void)
     {
         OS_Terminate();
     }
+    /*
+        AES関連 (NAND暗号化の鍵変更を含む)
+    */
+#ifndef SDK_FINALROM
+    if ( !*(u8*)HW_TWL_RED_LAUNCHER_VER )
+#endif
+    {
+        AESi_PreInitKeys();
+    }
     /*
         リセットパラメータ(1バイト)を共有領域(1バイト)にコピー
     */
diff --git a/build/nandfirm/sdmc-launcher/ARM7/main.c b/build/nandfirm/sdmc-launcher/ARM7/main.c
index ab865092..fe92f161 100644
--- a/build/nandfirm/sdmc-launcher/ARM7/main.c
+++ b/build/nandfirm/sdmc-launcher/ARM7/main.c
@@ -122,6 +122,15 @@ static void PreInit(void)
     {
         OS_Terminate();
     }
+    /*
+        AES関連 (NAND暗号化の鍵変更を含む)
+    */
+#ifndef SDK_FINALROM
+    if ( !*(u8*)HW_TWL_RED_LAUNCHER_VER )
+#endif
+    {
+        AESi_PreInitKeys();
+    }
     /*
         リセットパラメータ(1バイト)を共有領域(1バイト)にコピー
     */
diff --git a/docs/骰ｵ邂｡逅�.xls b/docs/骰ｵ邂｡逅�.xls
index 642e42d1..3da5edc6 100644
Binary files a/docs/骰ｵ邂｡逅�.xls and b/docs/骰ｵ邂｡逅�.xls differ
diff --git a/include/firm/aes/ARM7/aes_init.h b/include/firm/aes/ARM7/aes_init.h
index 9924c773..000c2540 100644
--- a/include/firm/aes/ARM7/aes_init.h
+++ b/include/firm/aes/ARM7/aes_init.h
@@ -27,6 +27,18 @@ extern "C" {
 /*---------------------------------------------------------------------------*
     関数定義
  *---------------------------------------------------------------------------*/
+/*---------------------------------------------------------------------------*
+  Name:         AESi_PreInitKeys
+
+  Description:  reset IDs preset by bootrom.
+                you SHOULD NOT touch any ID registers after this call.
+
+  Arguments:    None
+
+  Returns:      None
+ *---------------------------------------------------------------------------*/
+void AESi_PreInitKeys( void );
+
 /*---------------------------------------------------------------------------*
   Name:         AESi_InitKeysForApp