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Fixed validation of the decryption key.

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This commit is contained in:
Sorvigolova 2015-04-23 23:08:46 +03:00
parent cd73f3984e
commit 6be9f3f2a5
1 changed files with 4 additions and 3 deletions
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7
src/sce.cpp
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@ -891,9 +891,6 @@ BOOL sce_decrypt_header(sce_buffer_ctxt_t *ctxt, u8 *metadata_info, u8 *keyset)
memcpy((u8 *)ctxt->metai, metadata_info, sizeof(metadata_info));
}
if(ctxt->metai->key_pad[0] != 0x00 || ctxt->metai->iv_pad[0] != 0x00)
return FALSE;
//Decrypt metadata header, metadata section headers and keys.
nc_off = 0;
memcpy (ctr_iv, ctxt->metai->iv ,0x10);
@ -902,6 +899,10 @@ BOOL sce_decrypt_header(sce_buffer_ctxt_t *ctxt, u8 *metadata_info, u8 *keyset)
_ES64(ctxt->sceh->header_len) - (sizeof(sce_header_t) + _ES32(ctxt->sceh->metadata_offset) + sizeof(metadata_info_t)),
&nc_off, ctr_iv, sblk, (u8 *)ctxt->metah, (u8 *)ctxt->metah);
//Check if the metadata was decrypted properly.
if (_ES64(ctxt->metah->sig_input_length) > _ES64(ctxt->sceh->header_len))
return FALSE;
//Metadata decrypted.
ctxt->mdec = TRUE;