Difference between revisions of "AMPXI:VerifyDSiWareFooter"
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| Line 68: | Line 68: | ||
=Description= | =Description= | ||
| − | This verifies the ECDSA signature and certificates from the [[DSiWare_Exports|DSiWare]] export footer. | + | This verifies the ECDSA signature and certificates from the [[DSiWare_Exports|DSiWare]] export footer. The input CTCert is verified with a DER stored in NATIVE_FIRM, separate DERs are used for retail and dev/debug. |
Revision as of 21:41, 25 April 2013
Request
| Index Word | Description |
|---|---|
| 0 | Header code [0x004301C8] |
| 1 | TWL TitleID lower word, from the header. |
| 2 | TWL TitleID upper word, from the header. |
| 3 | Data buffer size. When the running NATIVE_FIRM only supports DSiWare exports format v1, the max size for this is 0xC0, otherwise the max size is 0x1C0. |
| 4 | ECDSA signature buffer size, must be 0x3C. |
| 5 | CTCert buffer size, must be 0x180. |
| 6 | APCert buffer size, must be 0x180. |
| 7 | u8 DSiWare export section index |
| 8 | (DataBufSize<<8) | 0x4 |
| 9 | DataBuf ptr, this buffer contains the hashes from the footer. |
| 10 | (SigBufSize<<8) | 0x14 |
| 11 | ECDSA signature ptr, this signs the above data-buffer. |
| 12 | (CTCertSize<<8) | 0x24 |
| 13 | CTCert buffer ptr, from the footer. |
| 14 | (APCertSize<<8) | 0x34 |
| 15 | APCert buffer ptr, from the footer. |
Response
| Index Word | Description |
|---|---|
| 0 | Header code |
| 1 | Result code |
Description
This verifies the ECDSA signature and certificates from the DSiWare export footer. The input CTCert is verified with a DER stored in NATIVE_FIRM, separate DERs are used for retail and dev/debug.