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Add key id based m2p rotation support

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This commit is contained in:
server
2026-04-14 12:20:19 +02:00
parent 229c809b96
commit cb0867432e
5 changed files with 100 additions and 19 deletions
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26
src/PackLib/M2Pack.cpp
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@@ -40,12 +40,6 @@ bool ReadPod(const uint8_t* bytes, std::size_t size, std::size_t& offset, T& out
bool CM2Pack::Load(const std::string& path)
{
if (!HasM2PackRuntimeKeysForArchiveLoad())
{
TraceError("CM2Pack::Load: runtime master key required for '%s'", path.c_str());
return false;
}
std::error_code ec;
m_file.map(path, ec);
@@ -75,6 +69,15 @@ bool CM2Pack::Load(const std::string& path)
return false;
}
if (!HasM2PackRuntimeKeysForArchiveLoad(m_header.key_id))
{
TraceError("CM2Pack::Load: runtime master key with key_id=%u required for '%s' (active key_id=%u)",
m_header.key_id,
path.c_str(),
GetM2PackActiveMasterKeyId());
return false;
}
if (m_header.manifest_offset + m_header.manifest_size > m_file.size())
{
TraceError("CM2Pack::Load: manifest out of bounds in '%s'", path.c_str());
@@ -111,11 +114,18 @@ bool CM2Pack::ValidateManifest()
return false;
}
if (crypto_sign_verify_detached(
const auto* publicKey = GetM2PackPublicKeyForKeyId(m_header.key_id);
if (!publicKey)
{
TraceError("CM2Pack::ValidateManifest: no public key configured for key_id=%u", m_header.key_id);
return false;
}
if (crypto_sign_verify_detached(
m_header.manifest_signature,
m_manifest_bytes.data(),
m_manifest_bytes.size(),
GetM2PackActivePublicKey().data()) != 0)
publicKey->data()) != 0)
{
TraceError("CM2Pack::ValidateManifest: manifest signature mismatch");
return false;