static String getEntryNameFromIssuer(X509CRL2 crl)
{
X500RdnAttributeCollection tokens = crl.IssuerName.GetRdnAttributes();
String objectName;
// if subject is empty, calculate SHA1 hash over subject name's raw data (48, 0)
if (tokens.Count == 0)
{
var sb = new StringBuilder();
using (SHA1 hasher = SHA1.Create()) {
foreach (Byte b in hasher.ComputeHash(crl.IssuerName.RawData))
{
sb.AppendFormat("{0:x2}", b);
}
}
objectName = sb.ToString();
}
else
{
objectName = tokens[0].Value;
}
var caVersion = (X509CAVersionExtension)crl.Extensions[X509CertExtensions.X509CAVersion];
if (caVersion == null || caVersion.CAKeyVersion < 1)
{
return(objectName);
}
return(DsUtils.GetSanitizedName($"{objectName}({caVersion.CAKeyVersion})"));
}
/// <summary>
/// Converts an <see cref="X500DistinguishedName"/> instance in to a collection of individual
/// RDN attributes.
/// </summary>
/// <param name="name">Existing instance of <strong>X500DistinguishedName</strong>.</param>
/// <returns>A collection of RDN attributes.</returns>
public static X500RdnAttributeCollection GetRdnAttributes(this X500DistinguishedName name)
{
if (name == null)
{
throw new ArgumentNullException(nameof(name));
}
if (name.RawData == null || name.RawData.Length == 0)
{
return(null);
}
var retValue = new X500RdnAttributeCollection();
retValue.Decode(name.RawData);
return(retValue);
}
// generates DS object name from X.500 name. If name is empty, an SHA-1 hash value of empty name is used.
static String generateContainerName(X500DistinguishedName name)
{
X500RdnAttributeCollection tokens = name.GetRdnAttributes();
// if subject is empty, calculate SHA1 hash over subject name's raw data (48, 0)
if (tokens.Count == 0)
{
var sb = new StringBuilder();
using (SHA1 hasher = SHA1.Create()) {
foreach (Byte b in hasher.ComputeHash(name.RawData))
{
sb.AppendFormat("{0:x2}", b);
}
}
return(sb.ToString());
}
return(DsUtils.GetSanitizedName(tokens[0].Value));
}
