Differences

This shows you the differences between two versions of the page.

--- scsidrminfo [2009/04/24 17:17] – megadiscman
+++ scsidrminfo [2010/07/06 15:10] (current) – megadiscman
@@ Line 4: / Line 4: @@
 ==== Command A3: Write Crypto Stuff ====
-(Sony calls it "Send Key")
+(This is officially "Send Key", but only on CD/DVD devices...)
 <code>
@@ Line 11: / Line 11: @@
 : DWORD Object Number
 : BYTE  unused
-: BYTE  Magic Byte BD
+: BYTE  Key class - For Sony DRM: BD
 : WORD  Size of cryptographic data
 A: BYTE  key type
@@ Line 18: / Line 18: @@
 ==== Command A4: Read Crypto Stuff ====
-(Sony calls it "Request Key")
+(This is officially "Report Key", but only on CD/DVD devices...)
 <code>
@@ Line 25: / Line 25: @@
 : DWORD Object Number
 : BYTE  unsused
-: BYTE  Magic Byte BD
+: BYTE  Key class - For Sony DRM: BD
 : WORD  Size of cryptographic data
 A: BYTE  key type
@@ Line 32: / Line 32: @@
 ===== Data formats =====
+even key types imply data transfer to device (using A3 command), whereas odd key types imply data transfer from device (using A4 command)
+Generally, all unused fields are sent as zero.
 ==== Key type 30: Authentication Token 1 ====
@@ Line 62: / Line 65: @@
 </code>
-==== Key type 33: Authentication Token 4 ====
+==== Key type 33: ICV from device ====
 This data packet is sent from the HiMD device to the Host (expected length 404)
+While this packet is never explained in the HiMD Transfer Tool for MAC, it looks suspiciously like the
+next one, just the other transfer direction.
 <code>
 : DWORD unknown, length?
-: BYTE  unknown, but used
+: BYTE  unknown, must be zero
-: BYTE  bit flags. Top 2 Bits are one field, the next two bits are further fields
+: BYTE  bit flags. Bits 6,7: encryption type (0=plain, 2=des ecb, 3=des cbc)
-                     Low 4 bits unused.
+                     Bit  5:   MAC flag
+                     Bit  4:   DIR flag
 : WORD  length of following data
-: DWORD unknown, but used
+: DWORD generation number
 C: BYTES data, length from field 6.
+..: BYTES MAC, only present if MAC bit is set. NOT included in length
 </code>
+==== Key type 34: ICV data to device ====
+This data packet is sent from the Host to the HiMD device
+<code>
+: WORD  length (must be 404)
+: WORD  unused
+: BYTE  ICV slot number (must be between 0 and 31)
+: BYTE  bit flags, same bits used as in Type 33
+: WORD  length of ICV data
+: DWORD Generation number
+C: BYTES ICV data
+XX: BYTES 8 Bytes MAC
+</code>
+==== Key type 38: secure clock ====
+This data packet is sent to the device
+<code>
+: BYTE  unused
+: BYTE  constant 0
+: WORD  unused
+: BYTE  unused
+: BYTE  constant 20
+: BYTE  unused
+: BYTE  constant 8
+: DWORD unused
+C: BYTE  unused
+D: BYTE  Seconds
+E: BYTE  Minutes
+F: BYTE  Hour
+: BYTE  Day
+: BYTE  Month
+: BYTE  Year
+: BYTE  unused
+: BYTES MAC
+</code>
+==== Key type 39: Unique ID ====
+This data packet is sent from the HiMD device to the host (expected length 192 bytes)
+<code>
+: DWORD unknown, maybe length in first two bytes
+: WORD  "UidCode"
+: BYTE  Version
+: BYTE  Length
+: BYTES Uid Data
+</code>
+==== Key type 3B: Leaf ID ====
+This data packet is sent from the HiMD device to the host
+<code>
+: WORD  unknown, length?
+: BYTES 8 Bytes leaf ID
+</code>
+==== Key type 3D: Disc ID ====
+<code>
+: WORD  unknown, length?
+: BYTES 16 bytes disc ID
+</code>