/// <summary>
/// Initializes a new instance of the <see cref="Association"/> class.
/// </summary>
/// <param name="handle">The handle.</param>
/// <param name="secret">The secret.</param>
/// <param name="totalLifeLength">How long the association will be useful.</param>
/// <param name="issued">The UTC time of when this association was originally issued by the Provider.</param>
protected Association(string handle, byte[] secret, TimeSpan totalLifeLength, DateTime issued)
{
Contract.Requires <ArgumentNullException>(!string.IsNullOrEmpty(handle));
Contract.Requires <ArgumentNullException>(secret != null);
Contract.Requires <ArgumentOutOfRangeException>(totalLifeLength > TimeSpan.Zero);
Contract.Requires <ArgumentException>(issued.Kind == DateTimeKind.Utc);
Contract.Requires <ArgumentOutOfRangeException>(issued <= DateTime.UtcNow);
Contract.Ensures(this.TotalLifeLength == totalLifeLength);
this.Handle = handle;
this.SecretKey = secret;
this.TotalLifeLength = totalLifeLength;
this.Issued = OpenIdUtilities.CutToSecond(issued);
}
/// <summary>
/// Initializes a new instance of the <see cref="Association"/> class.
/// </summary>
/// <param name="handle">The handle.</param>
/// <param name="secret">The secret.</param>
/// <param name="totalLifeLength">How long the association will be useful.</param>
/// <param name="issued">The UTC time of when this association was originally issued by the Provider.</param>
protected Association(string handle, byte[] secret, TimeSpan totalLifeLength, DateTime issued)
{
Requires.NotNullOrEmpty(handle, "handle");
Requires.NotNull(secret, "secret");
Requires.InRange(totalLifeLength > TimeSpan.Zero, "totalLifeLength");
Requires.True(issued.Kind == DateTimeKind.Utc, "issued");
Requires.InRange(issued <= DateTime.UtcNow, "issued");
Contract.Ensures(this.TotalLifeLength == totalLifeLength);
this.Handle = handle;
this.SecretKey = secret;
this.TotalLifeLength = totalLifeLength;
this.Issued = OpenIdUtilities.CutToSecond(issued);
}
