private static byte[] ConvertToBinaryIdentifier(string keyIdentifier, KeyCredentialVersion version)
{
switch (version)
{
case KeyCredentialVersion.Version0:
case KeyCredentialVersion.Version1:
return(keyIdentifier.HexToBinary());
case KeyCredentialVersion.Version2:
default:
return(Convert.FromBase64String(keyIdentifier));
}
}
private static string ConvertFromBinaryIdentifier(byte[] binaryId, KeyCredentialVersion version)
{
switch (version)
{
case KeyCredentialVersion.Version0:
case KeyCredentialVersion.Version1:
return(binaryId.ToHex(true));
case KeyCredentialVersion.Version2:
default:
return(Convert.ToBase64String(binaryId));
}
}
private static byte[] ConvertToBinaryTime(DateTime time, KeySource source, KeyCredentialVersion version)
{
long timeStamp;
switch (version)
{
case KeyCredentialVersion.Version0:
timeStamp = time.Ticks;
break;
case KeyCredentialVersion.Version1:
timeStamp = time.ToBinary();
break;
case KeyCredentialVersion.Version2:
default:
timeStamp = source == KeySource.AD ? time.ToFileTime() : time.ToBinary();
break;
}
return(BitConverter.GetBytes(timeStamp));
}
private static string ComputeKeyIdentifier(byte[] keyMaterial, KeyCredentialVersion version)
{
byte[] binaryId = ComputeHash(keyMaterial);
return(ConvertFromBinaryIdentifier(binaryId, version));
}
private static DateTime ConvertFromBinaryTime(byte[] binaryTime, KeySource source, KeyCredentialVersion version)
{
long timeStamp = BitConverter.ToInt64(binaryTime, 0);
// AD and AAD use a different time encoding.
switch (version)
{
case KeyCredentialVersion.Version0:
return(new DateTime(timeStamp));
case KeyCredentialVersion.Version1:
return(DateTime.FromBinary(timeStamp));
case KeyCredentialVersion.Version2:
default:
return(source == KeySource.AD ? DateTime.FromFileTime(timeStamp) : DateTime.FromBinary(timeStamp));
}
}
