/// <summary>
/// Creates a new instance of the <see cref="DSRecord"/> class
/// from the specified <see cref="DNSKEYRecord"/>.
/// </summary>
/// <param name="key">
/// The dns key to use.
/// </param>
/// <param name="force">
/// If <b>true</b>, key usage checks are ignored.
/// </param>
/// <exception cref="ArgumentException">
/// Both <see cref="DNSKEYFlags.ZoneKey"/> and <see cref="DNSKEYFlags.SecureEntryPoint"/>
/// must be set.
/// </exception>
/// <exception cref="ArgumentOutOfRangeException">
/// The <see cref="ResourceRecord.Name"/> of the <paramref name="key"/> is missing.
/// </exception>
public DSRecord(DNSKEYRecord key, bool force = false)
: this()
{
// Check the key.
if (!force)
{
if ((key.Flags & DNSKEYFlags.ZoneKey) == DNSKEYFlags.None)
{
throw new ArgumentException("ZoneKey must be set.", "key");
}
if ((key.Flags & DNSKEYFlags.SecureEntryPoint) == DNSKEYFlags.None)
{
throw new ArgumentException("SecureEntryPoint must be set.", "key");
}
}
byte[] digest;
using (var ms = new MemoryStream())
using (var hasher = DigestRegistry.Create(key.Algorithm))
{
var writer = new WireWriter(ms)
{
CanonicalForm = true
};
writer.WriteDomainName(key.Name);
key.WriteData(writer);
ms.Position = 0;
digest = hasher.ComputeHash(ms);
}
Algorithm = key.Algorithm;
Class = key.Class;
KeyTag = key.KeyTag();
Name = key.Name;
TTL = key.TTL;
Digest = digest;
HashAlgorithm = DigestType.Sha1;
}
public void EccGost()
{
DigestRegistry.Create(SecurityAlgorithm.ECCGOST);
}
public void RsaSha256()
{
var hasher = DigestRegistry.Create(SecurityAlgorithm.RSASHA256);
Assert.IsInstanceOfType(hasher, typeof(HashAlgorithm));
}
public void Gost()
{
DigestRegistry.Create(DigestType.GostR34_11_94);
}
public void Sha256()
{
var hasher = DigestRegistry.Create(DigestType.Sha256);
Assert.IsInstanceOfType(hasher, typeof(HashAlgorithm));
}