/// <summary>
/// Converts hashing algorithm OID to appropriate OID from signature group. For example, translates
/// <strong>sha1</strong> hashing algorithm to <strong>sha1NoSign</strong> with the same OID value.
/// </summary>
/// <param name="hashAlgorithm">Hashing algorithm</param>
/// <exception cref="ArgumentNullException">
/// <strong>hashAlgorithm</strong> parameter is null.
/// </exception>
/// <exception cref="ArgumentException">
/// Input OID doesn't belong to hash algorithm group or it cannot be translated to a respective
/// </exception>
/// <returns>OID in signature group.</returns>
public static Oid2 MapHashToSignatureOid(Oid2 hashAlgorithm)
{
if (hashAlgorithm == null)
{
throw new ArgumentNullException(nameof(hashAlgorithm));
}
if (hashAlgorithm.OidGroup != OidGroupEnum.HashAlgorithm)
{
throw new ArgumentException("Input OID must belong to hashing group.");
}
Oid2 newOid = new Oid2(hashAlgorithm.Value, OidGroupEnum.SignatureAlgorithm, false);
if (String.IsNullOrEmpty(newOid.Value))
{
throw new ArgumentException("Cannot translate hashing algorithm to signature algorithm.");
}
return(newOid);
}
Boolean Equals(Oid2 other)
{
return(String.Equals(Value, other.Value) && OidGroup == other.OidGroup && String.Equals(FriendlyName, other.FriendlyName));
}
