mirror of
https://github.com/jakcron/nstool.git
synced 2024-12-23 19:25:28 +00:00
22 lines
583 B
C++
22 lines
583 B
C++
#include <nx/XciUtils.h>
|
|
|
|
void nx::XciUtils::getXciHeaderAesIv(const nx::sXciHeader* hdr, byte_t* iv)
|
|
{
|
|
for (size_t i = 0; i < 16; i++)
|
|
{
|
|
iv[15-i] = hdr->aescbc_iv.iv[i];
|
|
}
|
|
}
|
|
|
|
void nx::XciUtils::decryptXciHeader(const byte_t* src, byte_t* dst, const byte_t* key)
|
|
{
|
|
byte_t iv[crypto::aes::kAesBlockSize];
|
|
|
|
getXciHeaderAesIv((const nx::sXciHeader*)src, iv);
|
|
|
|
// copy plain
|
|
memcpy(dst, src, nx::xci::kHeaderEncOffset);
|
|
|
|
// decrypt encrypted data
|
|
crypto::aes::AesCbcDecrypt(src + nx::xci::kHeaderEncOffset, nx::xci::kHeaderEncSize, key, iv, dst + nx::xci::kHeaderEncOffset);
|
|
} |