internal byte[] GetCacheValue(IPropertySet containerValues)
{
if (!containerValues.ContainsKey(CacheValueLength))
{
return(null);
}
int encyptedValueLength = (int)containerValues[CacheValueLength];
int segmentCount = (int)containerValues[CacheValueSegmentCount];
byte[] encryptedValue = new byte[encyptedValueLength];
if (segmentCount == 1)
{
encryptedValue = (byte[])containerValues[CacheValue + 0];
}
else
{
for (int i = 0; i < segmentCount - 1; i++)
{
Array.Copy((byte[])containerValues[CacheValue + i], 0, encryptedValue, i * MaxCompositeValueLength, MaxCompositeValueLength);
}
}
Array.Copy((byte[])containerValues[CacheValue + (segmentCount - 1)], 0, encryptedValue, (segmentCount - 1) * MaxCompositeValueLength, encyptedValueLength - (segmentCount - 1) * MaxCompositeValueLength);
return(_cryptographyManager.Decrypt(encryptedValue));
}
private byte[] ReadAndDecrypt(IStorageFile cacheFile)
{
IBuffer buffer = FileIO.ReadBufferAsync(cacheFile).AsTask().GetAwaiter().GetResult();
if (buffer.Length != 0)
{
byte[] encryptedblob = buffer.ToArray();
return(_cryptographyManager.Decrypt(encryptedblob));
}
return(null);
}
private void OnBeforeAccessAsync(TokenCacheNotificationArgs args)
{
var cacheFile = ApplicationData.Current.LocalFolder.TryGetItemAsync(CacheFileName)
.AsTask().GetAwaiter().GetResult() as IStorageFile;
if (cacheFile != null)
{
IBuffer buffer = FileIO.ReadBufferAsync(cacheFile).AsTask().GetAwaiter().GetResult();
if (buffer.Length != 0)
{
byte[] encryptedblob = buffer.ToArray();
byte[] decryptedBlob = _cryptographyManager.Decrypt(encryptedblob);
args.TokenCache.DeserializeMsalV3(decryptedBlob);
}
}
}
