public string EncodeCrlNumberExtensionData(string[] crlNumber)
{
//var urisStr = D.CrlLocations;
var uris = crlNumber.Select(u => Encoding.UTF8.GetBytes(u));
var zero = new byte[] { 48 }; //"0", delimiter ?
var nbsp = new byte[] { 160 }; //" ", separator ?
var dagger = new byte[] { 134 }; //"dagger", separator ?
var zeroSize = zero.Length + 1;
var nbspSize = nbsp.Length + 1;
var daggerSize = dagger.Length + 1;
var col = new List <byte>();
col.AddRange(zero); //delimiter
int totalBytes = uris.Sum(u => u.Length);
totalBytes += (zeroSize + (nbspSize * 2) + daggerSize) * uris.Count();
col.Add((byte)totalBytes); //size of everything it contains
foreach (var uri in uris)
{
var uriSize = uri.Length;
col.AddRange(zero); //delimiter
col.Add((byte)(nbspSize + nbspSize + uriSize + daggerSize)); //size of everything it contains
col.AddRange(nbsp);
col.Add((byte)(nbspSize + uriSize + daggerSize)); //size of everything it contains
col.AddRange(nbsp);
col.Add((byte)(uriSize + daggerSize)); //size of everything it contains
col.AddRange(dagger); //separator ?
col.Add((byte)uriSize);
col.AddRange(uri);
}
var bytes = col.ToArray();
var base64 = Convert.ToBase64String(bytes);
var oidCDP = new CERTENROLLLib.CObjectId();
//oidCDP.InitializeFromName(CERTENROLLLib.CERTENROLL_OBJECTID.XCN_OID_CRL_DIST_POINTS);
oidCDP.InitializeFromName(CERTENROLLLib.CERTENROLL_OBJECTID.XCN_OID_CRL_NUMBER);
// There is no specific class to CDPs, so we use the CX509Extension
var crlList = new CERTENROLLLib.CX509Extension();
crlList.Initialize(oidCDP, CERTENROLLLib.EncodingType.XCN_CRYPT_STRING_BASE64, base64);
//certRequest.X509Extensions.Add(crlList);
return(crlList.RawData[CERTENROLLLib.EncodingType.XCN_CRYPT_STRING_BASE64]);
}