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Merge pull request #542 from wheremyfoodat/crypto2

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AES: Fix fixed crypto key mode and CTR for versions 0 and 2
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wheremyfoodat 2024-07-19 22:09:29 +00:00 • committed by GitHub
commit dec3df39e0
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GPG key ID: B5690EEEBB952194
1 changed files with 4 additions and 2 deletions
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6
src/core/loader/ncch.cpp
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@ -88,8 +88,8 @@ bool NCCH::loadFromHeader(Crypto::AESEngine &aesEngine, IOFile& file, const FSIn
encryptionInfoTmp.normalKey = *primaryKey;
encryptionInfoTmp.initialCounter.fill(0);
for (std::size_t i = 1; i <= sizeof(std::uint64_t) - 1; i++) {
encryptionInfoTmp.initialCounter[i] = header[0x108 + sizeof(std::uint64_t) - 1 - i];
for (usize i = 0; i < 8; i++) {
encryptionInfoTmp.initialCounter[i] = header[0x108 + 7 - i];
}
encryptionInfoTmp.initialCounter[8] = 1;
exheaderInfo.encryptionInfo = encryptionInfoTmp;
@ -305,6 +305,7 @@ std::pair<bool, Crypto::AESKey> NCCH::getPrimaryKey(Crypto::AESEngine &aesEngine
if (encrypted) {
if (fixedCryptoKey) {
result.fill(0);
return {true, result};
}
@ -326,6 +327,7 @@ std::pair<bool, Crypto::AESKey> NCCH::getSecondaryKey(Crypto::AESEngine &aesEngi
if (encrypted) {
if (fixedCryptoKey) {
result.fill(0);
return {true, result};
}