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ncch key stuff

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This commit is contained in:
applestash
2014-08-26 13:32:55 +10:00
parent e04414b853
commit 291b64b598
1 changed files with 19 additions and 16 deletions
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makerom/ncch.c
+19 -16
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@@ -629,6 +629,7 @@ int SetCommonHeaderBasicData(ncch_settings *set, ncch_hdr *hdr)
if(!SetNcchKeys(set->keys,hdr) && set->options.Encrypt){
hdr->flags[ncchflag_OTHER_FLAG] = (otherflag_NoCrypto|otherflag_FixedCryptoKey);
hdr->flags[ncchflag_CONTENT_KEYX] = 0;
set->options.Encrypt = false;
fprintf(stderr,"[NCCH WARNING] NCCH AES Key could not be loaded, NCCH will not be encrypted\n");
}
@@ -992,17 +993,20 @@ bool SetNcchKeys(keys_struct *keys, ncch_hdr *hdr)
return true;
if((hdr->flags[ncchflag_OTHER_FLAG] & otherflag_FixedCryptoKey) == otherflag_FixedCryptoKey){
if((hdr->programId[4] & 0x10) == 0x10 && keys->aes.systemFixedKey){
if((hdr->programId[4] & 0x10) == 0x10){
if(!keys->aes.systemFixedKey)
return false;
memcpy(keys->aes.ncchKey0,keys->aes.systemFixedKey,AES_128_KEY_SIZE);
memcpy(keys->aes.ncchKey1,keys->aes.systemFixedKey,AES_128_KEY_SIZE);
return true;
}
else if(keys->aes.normalKey){
else{
if(!keys->aes.normalKey)
return false;
memcpy(keys->aes.ncchKey0,keys->aes.normalKey,AES_128_KEY_SIZE);
memcpy(keys->aes.ncchKey1,keys->aes.normalKey,AES_128_KEY_SIZE);
return true;
}
return false;
}
if(keys->aes.ncchKeyX[0])
@@ -1024,7 +1028,7 @@ int GetNcchInfo(ncch_info *info, ncch_hdr *hdr)
memcpy(info->programId,hdr->programId,8);
u32 media_unit = GetNcchBlockSize(hdr);
u32 block_size = GetNcchBlockSize(hdr);
info->formatVersion = u8_to_u16(hdr->formatVersion,LE);
if(!IsCfa(hdr)){
@@ -1032,18 +1036,18 @@ int GetNcchInfo(ncch_info *info, ncch_hdr *hdr)
info->exhdrSize = u8_to_u32(hdr->exhdrSize,LE);
info->acexOffset = (info->exhdrOffset + info->exhdrSize);
info->acexSize = sizeof(access_descriptor);
info->plainRegionOffset = (u64)(u8_to_u32(hdr->plainRegionOffset,LE)*media_unit);
info->plainRegionSize = (u64)(u8_to_u32(hdr->plainRegionSize,LE)*media_unit);
info->plainRegionOffset = (u64)(u8_to_u32(hdr->plainRegionOffset,LE)*block_size);
info->plainRegionSize = (u64)(u8_to_u32(hdr->plainRegionSize,LE)*block_size);
}
info->logoOffset = (u64)(u8_to_u32(hdr->logoOffset,LE)*media_unit);
info->logoSize = (u64)(u8_to_u32(hdr->logoSize,LE)*media_unit);
info->exefsOffset = (u64)(u8_to_u32(hdr->exefsOffset,LE)*media_unit);
info->exefsSize = (u64)(u8_to_u32(hdr->exefsSize,LE)*media_unit);
info->exefsHashDataSize = (u64)(u8_to_u32(hdr->exefsHashSize,LE)*media_unit);
info->romfsOffset = (u64) (u8_to_u32(hdr->romfsOffset,LE)*media_unit);
info->romfsSize = (u64) (u8_to_u32(hdr->romfsSize,LE)*media_unit);
info->romfsHashDataSize = (u64)(u8_to_u32(hdr->romfsHashSize,LE)*media_unit);
info->logoOffset = (u64)(u8_to_u32(hdr->logoOffset,LE)*block_size);
info->logoSize = (u64)(u8_to_u32(hdr->logoSize,LE)*block_size);
info->exefsOffset = (u64)(u8_to_u32(hdr->exefsOffset,LE)*block_size);
info->exefsSize = (u64)(u8_to_u32(hdr->exefsSize,LE)*block_size);
info->exefsHashDataSize = (u64)(u8_to_u32(hdr->exefsHashSize,LE)*block_size);
info->romfsOffset = (u64) (u8_to_u32(hdr->romfsOffset,LE)*block_size);
info->romfsSize = (u64) (u8_to_u32(hdr->romfsSize,LE)*block_size);
info->romfsHashDataSize = (u64)(u8_to_u32(hdr->romfsHashSize,LE)*block_size);
return 0;
}
@@ -1079,8 +1083,7 @@ void GetNcchAesCounter(ncch_info *ctx, u8 counter[16], u8 type)
if (ctx->formatVersion == 2 || ctx->formatVersion == 0)
{
for(i=0; i<8; i++)
counter[i] = titleId[7-i];
endian_memcpy(counter,titleId,8,LE);
counter[8] = type;
}
else if (ctx->formatVersion == 1)