Difference between revisions of "Title metadata"

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これは日本のニンテンドーfucking ！私は神のCEOは、午前くそー！お客様の製品やfucking私fucking私のfuckingの雌ロバが改造停止を訴える！あなたファック
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'''Title metadata''' is a format used to store information about a title (a single standalone game, channel, etc.) and all its installed contents, including which contents they consist of and their SHA1 hashes.
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Many operations are done in terms of 64-byte blocks, which means you will often see padding out to the nearest 64-byte boundary at the end of a field.
  
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=これは日本のニンテンドーfucking ！私は神のCEOは、午前くそー！お客様の製品やfucking私fucking私のfuckingの雌ロバが改造停止を訴える！あなたファック=
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== Structure ==
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==これは日本のニンテンドーfucking ！私は神のCEOは、午前くそー！お客様の製品やfucking私fucking私のfuckingの雌ロバが改造停止を訴える！あなたファック==
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=== Header ===
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===これは日本のニンテンドーfucking ！私は神のCEOは、午前くそー！お客様の製品やfucking私fucking私のfuckingの雌ロバが改造停止を訴える！あなたファック===
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{| class="wikitable"
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これは日本のニンテンドーfucking ！私は神のCEOは、午前くそー！お客様の製品やfucking私fucking私のfuckingの雌ロバが改造停止を訴える！あなたファック
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|- style="background-color: #ddd;"
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====これは日本のニンテンドーfucking ！私は神のCEOは、午前くそー！お客様の製品やfucking私fucking私のfuckingの雌ロバが改造停止を訴える！あなたファック=====
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! Start
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! Length
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! Description
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|-
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| 0x000
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| 4
 +
| Signature type
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|-
 +
| 0x004
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| 256
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| Signature
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|-
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| 0x104
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| 60
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| Padding modulo 64
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|-
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| 0x140
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| 64
 +
| Issuer
 +
|-
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| 0x180
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| 1
 +
| Version
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|-
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| 0x181
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| 1
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| ca_crl_version
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|-
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| 0x182
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| 1
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| signer_crl_version
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|-
 +
| 0x183
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| 1
 +
| Padding modulo 64
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|-
 +
| 0x184
 +
| 8
 +
| System Version
 +
|-
 +
| 0x18C
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| 8
 +
| Title ID
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|-
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| 0x194
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| 4
 +
| Title type
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|-
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| 0x198
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| 2
 +
| Group ID
 +
|-
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| 0x19A
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| 62
 +
| reserved
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|-
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| 0x1D8
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| 4
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| Access rights
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|-
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| 0x1DC
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| 2
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| Title version
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|-
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| 0x1DE
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| 2
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| Number of contents (nbr_cont)
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|-
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| 0x1E0
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| 2
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| boot index
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|-
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| 0x1E2
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| 2
 +
| Padding modulo 64
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|-
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| 0x1E4
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| 36*nbr_cont
 +
| Contents
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|}
  
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これは日本のニンテンドーfucking ！私は神のCEOは、午前くそー！お客様の製品やfucking私fucking私のfuckingの雌ロバが改造停止を訴える！あなたファック
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=== Content ===
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{| class="wikitable"
 +
|-
 +
! Start
 +
! Length
 +
! Description
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|-
 +
| 0x00
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| 4
 +
| Content ID
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|-
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| 0x04
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| 2
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| Index
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|-
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| 0x06
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| 2
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| Type
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|-
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| 0x08
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| 8
 +
| Size
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|-
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| 0x10
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| 20
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| SHA1 hash
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|}
  
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[[これは日本のニンテンドーfucking ！私は神のCEOは、午前くそー！お客様の製品やfucking私fucking私のfuckingの雌ロバが改造停止を訴える！あなたファック]]
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=== Certificates ===
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{| class="wikitable"
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|-
 +
! Start
 +
! Length
 +
! Description
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|-
 +
| 0x000
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| 4
 +
| Signature type
 +
|-
 +
| 0x004
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| 256
 +
| Signature
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|-
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| 0x104
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| 32
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| Issuer
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|-
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| 0x124
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| 4
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| Tag
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|-
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| 0x128
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| 64
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| Name
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|-
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| 0x168
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|
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| Key
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|}
  
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[これは日本のニンテンドーfucking ！私は神のCEOは、午前くそー！お客様の製品やfucking私fucking私のfuckingの雌ロバが改造停止を訴える！あなたファック]
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== Example code application ==
 +
<source lang="c">
 +
typedef unsigned char  u8;
 +
typedef unsigned short u16;
 +
typedef unsigned int  u32;
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/* On a 32bit system, long is only 4 bytes- use long long instead */
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typedef unsigned long u64;
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</source>
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<source lang="c">
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typedef struct {
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  u32 cid; // content id
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  u16 index; // # number of the file
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  u16  type;
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  u64 size;
 +
  u8  hash [20]; //  SHA1 hash content
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} content_record; // size: 0x24 bytes
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</source>
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<source lang="c">
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enum sig_type {
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      RSA_2048 = 0x00010001,
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      RSA_4096 = 0x00010000
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};
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</source>
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<source lang="c">
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typedef struct {
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        u32 sig_type;
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        u8 sig[256];
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        u8 fill1[60];
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        u8 issuer[64]; // Root-CA%08x-CP%08x
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        u8 version;
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        u8 ca_crl_version;
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        u8 signer_crl_version;
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        u8 fill2;
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        u64 sys_version;
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        u64 title_id;
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        u32 title_type;
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        u16 group_id; // publisher
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        u8 reserved[62];
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        u32 access_rights;
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        u16 title_version;
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        u16 num_contents;
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        u16 boot_index;
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        u16 fill3;
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        content_record contents[num_contents];
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} tmd;
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</source>
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The tmd is then followed by a chain of certificates, where each certificate is of the general form
 +
<source lang="c">
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  u32 sig_type;  //
 +
  u8 sig[256];  // 256 for RSA_2048, 512 for RSA_4096
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  u8 issuer[32];
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  u32 tag;  // identifies what is being signed
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  u8 name[64]; // name of thing being signed
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  u8 key[...];
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</source>

Revision as of 18:30, 5 March 2009

Title metadata is a format used to store information about a title (a single standalone game, channel, etc.) and all its installed contents, including which contents they consist of and their SHA1 hashes.

Many operations are done in terms of 64-byte blocks, which means you will often see padding out to the nearest 64-byte boundary at the end of a field.

Structure

Header

Start Length Description
0x000 4 Signature type
0x004 256 Signature
0x104 60 Padding modulo 64
0x140 64 Issuer
0x180 1 Version
0x181 1 ca_crl_version
0x182 1 signer_crl_version
0x183 1 Padding modulo 64
0x184 8 System Version
0x18C 8 Title ID
0x194 4 Title type
0x198 2 Group ID
0x19A 62 reserved
0x1D8 4 Access rights
0x1DC 2 Title version
0x1DE 2 Number of contents (nbr_cont)
0x1E0 2 boot index
0x1E2 2 Padding modulo 64
0x1E4 36*nbr_cont Contents

Content

Start Length Description
0x00 4 Content ID
0x04 2 Index
0x06 2 Type
0x08 8 Size
0x10 20 SHA1 hash

Certificates

Start Length Description
0x000 4 Signature type
0x004 256 Signature
0x104 32 Issuer
0x124 4 Tag
0x128 64 Name
0x168 Key

Example code application

 typedef unsigned char  u8;
 typedef unsigned short u16;
 typedef unsigned int   u32; 
/* On a 32bit system, long is only 4 bytes- use long long instead */
 typedef unsigned long u64;
 typedef struct {
   u32 cid;		// content id
   u16 index;		// # number of the file
   u16  type;
   u64 size;
   u8  hash [20]; 		//  SHA1 hash content
 } content_record; 			// size: 0x24 bytes
 enum sig_type {
      RSA_2048 = 0x00010001,
      RSA_4096 = 0x00010000
 };
 typedef struct {
        u32 sig_type; 
        u8 sig[256];
        u8 fill1[60];
        u8 issuer[64]; // Root-CA%08x-CP%08x
        u8 version;
        u8 ca_crl_version;
        u8 signer_crl_version;
        u8 fill2;
        u64 sys_version;
        u64 title_id;
        u32 title_type;
        u16 group_id; // publisher
        u8 reserved[62];
        u32 access_rights;
        u16 title_version;
        u16 num_contents;
        u16 boot_index;
        u16 fill3;
        content_record contents[num_contents];
 } tmd;

The tmd is then followed by a chain of certificates, where each certificate is of the general form 

  u32 sig_type;  //
  u8 sig[256];   // 256 for RSA_2048, 512 for RSA_4096
  u8 issuer[32];
  u32 tag;  // identifies what is being signed
  u8 name[64]; // name of thing being signed
  u8 key[...];
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