public override byte[] GetKey(KeyProviderQueryContext ctx)
{
if (ctx.CreatingNewKey)
{
MessageService.ShowWarning("Can't use QuickUnlock to create new keys.");
return(null);
}
QuickUnlockData data;
if (TryGetCachedKey(ctx.DatabasePath, out data) == false ||
data.IsValid() == false)
{
MessageService.ShowWarning("QuickUnlock is not available for this database.");
return(null);
}
using (QuickUnlockPromptForm quof = new QuickUnlockPromptForm())
{
if (quof.ShowDialog() != DialogResult.OK)
{
return(null);
}
var pb = data.UnlockKey.ReadUtf8();
var same = MemUtil.ArraysEqual(pb, StrUtil.Utf8.GetBytes(quof.QuickUnlockKey));
MemUtil.ZeroByteArray(pb);
if (same == false)
{
//remove the cache entry
RemoveCachedKey(ctx.DatabasePath);
//return dummy password to let KeePass fail while loading the database
return(new byte[] { 0 });
}
return(data.ComposedKey.ReadData());
}
}
public override byte[] GetKey(KeyProviderQueryContext ctx)
{
if (ctx.CreatingNewKey)
{
MessageService.ShowWarning("Can't use QuickUnlock to create new keys.");
return(null);
}
QuickUnlockData data;
if (TryGetCachedKey(ctx.DatabasePath, out data) == false ||
data.IsValid() == false)
{
MessageService.ShowWarning("QuickUnlock is not available for this database.");
return(null);
}
using (var quof = new QuickUnlockPromptForm(ctx.IsOnSecureDesktop))
{
if (quof.ShowDialog() != DialogResult.OK)
{
return(null);
}
ProtectedBinary result;
var pinBytes = quof.QuickUnlockKey;
using (var cipher = CreateCipher(pinBytes, data.Nonce))
{
RemoveCachedKey(ctx.DatabasePath);
result = data.ComposedKey.Decrypt(cipher);
}
MemUtil.ZeroByteArray(pinBytes);
return(result.ReadData());
}
}