Editing Activation ACF

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ACF is a data structure stored in PS4 Kit System Flash at offset [http://www.psdevwiki.com/ps4/Flash-Main#0x1C9080_ACF_.28Dev.2FTest.29 0x1C9080].
Found in the System Flash on offset [http://www.psdevwiki.com/ps4/Flash-Main#0x1C9080_ACF_.28Dev.2FTest.29 0x1C9080] and only present on Dev / Test Dumps.


ACF certainly stands for Activation Code/Control/Console File/Flag.
Total length = 0x68 ~= 104 bytes.


See also [https://wiki.henkaku.xyz/vita/AFV PSVita equivalent].
There is a structure in it. It hase a Magic of 4 bytes, then there are constant 4 bytes following by unique changing 16 bytes. Then again constant 4 bytes following by unique 8 bytes and a third time, constant 4 bytes following by unique 64 bytes.


= Structure =
Structure and constant bytes are for every Dev / Test the same. Example:
 
Magic Bytes == Red.
 
Constant Bytes == Blue.


Total length is 0x68 bytes.
Unique Bytes == Green.


Offset(h) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
001C9080  <span style="background:#ff6666;">61 63 66 00</span> <span style="background:#8888ff;">01 02 00 00</span> <span style="background:#00ff00;">D6 B1 DA DE C7 82 7A A4</span> acf.....Ö±ÚÞÇ‚z¤
001C9090  <span style="background:#00ff00;">21 AE 4E D0 D9 BF B1 1A</span> <span style="background:#8888ff;">03 00 00 00</span> <span style="background:#00ff00;">11 55 E2 52</span> !®NÐÙ¿±......UâR
001C90A0  <span style="background:#00ff00;">11 FC 58 53</span> <span style="background:#8888ff;">00 00 00 00</span> <span style="background:#00ff00;">CC B4 CD 3A 0A F5 C0 F4</span> .üXS....Ì´Í:.õÀô
001C90B0  <span style="background:#00ff00;">4F 04 6B C3 95 16 E6 D8 FB 0B F2 56 B0 3B BA 00</span> O.kÕ.æØû.òV°;º.
001C90C0  <span style="background:#00ff00;">26 B0 D3 BA 55 5F B0 40 0F 54 34 22 E1 E4 DA A7</span> &°ÓºU_°@.T4"áäÚ§
001C90D0  <span style="background:#00ff00;">D1 7D EE BC EF 03 3C 23 37 EE 10 EB F6 88 1B 85</span> Ñ}î¼ï.<#7î.ëöˆ.…
001C90E0  <span style="background:#00ff00;">35 8F 4B F5 D5 1A C7 3D</span>                        5.KõÕ.Ç=
== Struct ==
{| class="wikitable"
{| class="wikitable"
|-
|-
! From !! To !! Description
! From !! To !! Description
|-
|-
| 1C9080 || 1C9083 || '''Magic''' "acf\0"
| 1C9080 || 1C9083 || '''MAGIC''' acf
|-
| 1C9084 || 1C9087 || '''Format Version''' Constant 4 bytes. (format_ver, format_minor_ver)
|-
|-
| 1C9088 || 1C9097 || '''Activation Key'''
| 1C9084 || 1C9087 || '''Constant1''' Constant 4 bytes always the same.
|-
|-
| 1C9098 || 1C909B || '''Issue Number'''. Ex: 3, 15.
| 1C9088 || 1C9097 || '''Unique1''' Unique 16 bytes.
|-
|-
| 1C909C || 1C909F || '''Start Date''' 4 bytes. Little Endian.
| 1C9098 || 1C909B || '''Constant2''' Constant 4 bytes always the same.
|-
|-
| 1C90A0 || 1C90A3 || '''Expire Date''' 4 bytes. Little Endian. Usually 90 days since Start Date.
| 1C909C || 1C90A3 || '''Unique2''' Unique 8 bytes.
|-
|-
| 1C90A4 || 1C90A7 || '''Reserved''' Always zeroed.
| 1C90A4 || 1C90A7 || '''Const3''' Constant 4 bytes always the same.
|-
|-
| 1C90A8 || 1C90E7 || '''Key_Hash''' Unique 64 bytes.
| 1C90A8 || 1C90E7 || '''Unique3''' Unique 64 bytes.
|-
|-
|}
|}


<source lang="C">
 
  typedef struct SceAcf {
<source lang="c">
     char magic[4];
  typedef struct ACF {
     uint32_t format_ver;
     const unsigned char MAGIC;
     char activation_key[16];
     const int32 CONST1;
     uint32_t issue_no;  
     unsigned char BYTE16;
     uint32_t start_date;
     const int32 CONST2;
    uint32_t expire_date;
     unsigned char BYTE8;
     uint32_t reserved;
     const int32 CONST3;
     char key_hash[64];
     unsigned char BYTE64;
  } SceAcf;
  } ACF;
</source>
</source>


= Example =


Structure and constant bytes are for every Dev / Test the same. Example:
<source lang="csharp">
 
  protected internal struct ACF {
* Magic bytes: red.
    internal static byte[] MAGIC = new byte[4];
* Constant bytes: blue.
    internal static int CONST1;
* Unique bytes: green.
    internal static byte[] BYTE16 = new byte[16];
 
    internal static int CONST2;
Offset(h) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
    internal static byte[] BYTE8 = new byte[8];
001C9080  <span style="background:#ff6666;">61 63 66 00</span> <span style="background:#8888ff;">01 02 00 00</span> <span style="background:#00ff00;">D6 B1 DA DE C7 82 7A A4</span> acf.....Ö±ÚÞÇ‚z¤
    internal static int CONST3;
  001C9090  <span style="background:#00ff00;">21 AE 4E D0 D9 BF B1 1A</span> <span style="background:#8888ff;">03 00 00 00</span> <span style="background:#00ff00;">11 55 E2 52</span> !®NÐÙ¿±......UâR
    internal static byte[] BYTE64 = new byte[64];
001C90A0  <span style="background:#00ff00;">11 FC 58 53</span> <span style="background:#8888ff;">00 00 00 00</span> <span style="background:#00ff00;">CC B4 CD 3A 0A F5 C0 F4</span> .üXS....Ì´Í:.õÀô
  }
001C90B0  <span style="background:#00ff00;">4F 04 6B C3 95 16 E6 D8 FB 0B F2 56 B0 3B BA 00</span> O.kÕ.æØû.òV°;º.
</source>
001C90C0  <span style="background:#00ff00;">26 B0 D3 BA 55 5F B0 40 0F 54 34 22 E1 E4 DA A7</span> &°ÓºU_°@.T4"áäÚ§
  001C90D0  <span style="background:#00ff00;">D1 7D EE BC EF 03 3C 23 37 EE 10 EB F6 88 1B 85</span> Ñ}î¼ï.<#7î.ëöˆ.…
001C90E0  <span style="background:#00ff00;">35 8F 4B F5 D5 1A C7 3D</span>                         5.KõÕ.Ç=
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