/// <summary>
/// Initializes a new instance of the <see cref="SigningBindingElementChain"/> class.
/// </summary>
/// <param name="signers">
/// The signing binding elements that may be used for some outgoing message,
/// in preferred use order.
/// </param>
internal SigningBindingElementChain(ITamperProtectionChannelBindingElement[] signers)
{
if (signers == null) {
throw new ArgumentNullException("signers");
}
if (signers.Length == 0) {
throw new ArgumentException(MessagingStrings.SequenceContainsNoElements, "signers");
}
if (signers.Contains(null)) {
throw new ArgumentException(MessagingStrings.SequenceContainsNullElement, "signers");
}
MessageProtections protection = signers[0].Protection;
if (signers.Any(element => element.Protection != protection)) {
throw new ArgumentException(OAuthStrings.SigningElementsMustShareSameProtection, "signers");
}
this.signers = signers;
}
