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The SBL (that might stand for Secure Block, as in PS Vita) device is a PS5 kernel device that handles security and cryptography. It can provides services through [[IOCTL]]. It contains the [[Secure Modules]].
The SBL Kernel module handles Security & Cryptography. The kernel module checks PUP Updates, Executables, NPDRM (Retail) Packages and Debug Packages (the last 3 are handled by a part named Auth Manager). It also has a system interface for Playstation File System keys and an interface for the ZLIB hardware system (/dev/sce_zlib).
 
The SBL device verifies and decrypts [[PUP]] files, and associated formats like watermarks through the pup_mgr Secure Module.
 
It verifies and loads [[SELF]] and [[PRX]] executables, [[NPDRM]] packages and Debug packages through the auth_mgr_sm Secure Module.
 
It is used to obtain Individual Data (i.e. per-console, per-account, etc.) through the individual_data_mgr Secure Module. It may also be related to VTRM.
 
It manages the Manufacturing Mode through the manu_mode_mgr Secure Module.
 
It also has a system interface for [[PFS]] keys and an interface for the ZLIB hardware system (/dev/sce_zlib) through the key_mgr or auth_mgr_sm Secure Modules.
 
It contains the sm_service Secure Module that probably controls the load of other Secure Modules.
 
These Secure Modules are usually loaded from the [[Serial Flash]], and the data they manage is also often stored encrypted on the [[Serial Flash]]. Reading the raw Serial FLash can be done by the icc [[IOCTL]] commands but obtaining decrypted content relies on SBL [[IOCTL]] commands.
 
{{Reverse Engineering}}
<noinclude>[[Category:Main]]</noinclude>
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