/// <summary>
/// Tries to read a previously written object.
/// </summary>
/// <param name="already">The available object if it exists.</param>
/// <returns>
/// The read state. When <see cref="ReadState.Success"/> is false, the object must be read
/// and <see cref="ReadState.SetReadResult(T)"/> must be called.
/// </returns>
public ReadState TryRead(out T already)
{
byte b = _r.ReadByte();
switch (b)
{
case 0: already = default(T); return(new ReadState());
case 1: already = _objects[_r.ReadNonNegativeSmallInt32()]; return(new ReadState(1));
default: already = default(T); return(new ReadState(this, b));
}
}
internal ECKey(ISystemClock clock, ICKBinaryReader r)
: base(clock, r)
{
r.ReadByte();
Oid?curveName = HelperAndExtensions.ReadNullableOid(r);
Debug.Assert(curveName != null);
_parameters = new ECParameters()
{
Curve = ECCurve.CreateFromOid(curveName),
D = ReadBytes(r),
Q = new ECPoint()
{
X = ReadBytes(r), Y = ReadBytes(r)
}
};
if (r.ReadBoolean())
{
_ecdh = ECDiffieHellman.Create(_parameters);
}
else
{
_ec = ECDsa.Create(_parameters);
}
JWKCurveName = GetJWKCurveName(_parameters.Curve.Oid);
/// <summary>
/// Reads a key previously written by <see cref="Write(ICKBinaryWriter, KeyBase)"/>.
/// </summary>
/// <param name="clock">The system clock.</param>
/// <param name="r">The reader.</param>
/// <returns>The key.</returns>
public static KeyBase Read(ISystemClock clock, ICKBinaryReader r)
{
r.ReadByte();
return(r.ReadChar() switch
{
'R' => new RSAKey(clock, r),
'S' => new SymmetricKey(clock, r),
'E' => new ECKey(clock, r),
_ => throw new InvalidDataException("Invalid Key type."),
});
public KeyRequirement(ICKBinaryReader r)
{
r.ReadByte(); // Version.
KeyType = r.ReadEnum <KeyType>();
Operations = r.ReadEnum <KeyOperations>();
KeySizeInBits = r.ReadNullableInt32( );
CurveName = HelperAndExtensions.ReadNullableOid(r);
if (r.ReadBoolean())
{
InitiatorAlgorithmName = r.ReadString();
}
}
/// <summary>
/// Reads a <see cref="CKTraitContext"/> that has been previously written by <see cref="Write"/>.
/// </summary>
/// <param name="r">The binary reader to use.</param>
public static CKTraitContext Read(ICKBinaryReader r)
{
byte vS = r.ReadByte();
bool shared = (vS & 128) != 0;
bool withTags = (vS & 64) != 0;
var name = shared ? r.ReadSharedString() : r.ReadString();
var sep = r.ReadChar();
var tagReader = withTags ? r : null;
return(shared ? Bind(name, sep, tagReader) : new CKTraitContext(name, sep, false, tagReader));
}
private protected KeyBase(ISystemClock clock, ICKBinaryReader r)
{
Clock = clock;
r.ReadByte();
Kty = r.ReadEnum <KeyType>();
Kid = JsonEncodedText.Encode(r.ReadString());
Operations = r.ReadEnum <KeyOperations>();
CreationDate = r.ReadDateTime();
BestBefore = r.ReadDateTime();
MaxUseCount = r.ReadUInt32();
_oUseCount = r.ReadInt32();
}
internal RSAKey(ISystemClock clock, ICKBinaryReader r)
: base(clock, r)
{
r.ReadByte();
_parameters = new RSAParameters()
{
D = ReadBytes(r),
DP = ReadBytes(r),
DQ = ReadBytes(r),
InverseQ = ReadBytes(r),
P = ReadBytes(r),
Q = ReadBytes(r),
Modulus = ReadBytes(r),
Exponent = ReadBytes(r)
};
_rsa = RSA.Create(_parameters);
private protected AsymmetricKey(ISystemClock clock, ICKBinaryReader r)
: base(clock, r)
{
r.ReadByte(); // Version
}
internal SymmetricKey(ISystemClock clock, ICKBinaryReader r)
: base(clock, r)
{
r.ReadByte();
_key = r.ReadBytes(r.ReadNonNegativeSmallInt32());
}
/// <summary>
/// Simple deserialization constructor.
/// </summary>
/// <param name="r">The reader.</param>
public OneTimePassword(ICKBinaryReader r)
{
r.ReadByte(); // Version
Password = r.ReadString();
Expiration = r.ReadDateTime();
}