/**
* Return the first SignerInformation object that matches the
* passed in selector. Null if there are no matches.
*
* @param selector to identify a signer
* @return a single SignerInformation object. Null if none matches.
*/
public SignerInformation GetFirstSigner(
SignerID selector)
{
IList list = (IList)table[selector];
return(list == null ? null : (SignerInformation)list[0]);
}
/**
* Return possible empty collection with signers matching the passed in SignerID
*
* @param selector a signer id to select against.
* @return a collection of SignerInformation objects.
*/
public ICollection GetSigners(
SignerID selector)
{
IList list = (IList)table[selector];
return(list == null?Platform.CreateArrayList() : Platform.CreateArrayList(list));
}
private readonly IDictionary table = Platform.CreateHashtable(); // Hashtable[SignerID, ArrayList[SignerInformation]]
public SignerInformationStore(
ICollection signerInfos)
{
foreach (SignerInformation signer in signerInfos)
{
SignerID sid = signer.SignerID;
IList list = (IList)table[sid];
if (list == null)
{
table[sid] = list = Platform.CreateArrayList(1);
}
list.Add(signer);
}
this.all = Platform.CreateArrayList(signerInfos);
}
internal SignerInformation(
SignerInfo info,
DerObjectIdentifier contentType,
CmsProcessable content,
IDigestCalculator digestCalculator)
{
this.info = info;
this.sid = new SignerID();
this.contentType = contentType;
this.isCounterSignature = contentType == null;
try
{
SignerIdentifier s = info.SignerID;
if (s.IsTagged)
{
Asn1OctetString octs = Asn1OctetString.GetInstance(s.ID);
sid.SubjectKeyIdentifier = octs.GetEncoded();
}
else
{
Asn1.Cms.IssuerAndSerialNumber iAnds =
Asn1.Cms.IssuerAndSerialNumber.GetInstance(s.ID);
sid.Issuer = iAnds.Name;
sid.SerialNumber = iAnds.SerialNumber.Value;
}
}
catch (IOException)
{
throw new ArgumentException("invalid sid in SignerInfo");
}
this.digestAlgorithm = info.DigestAlgorithm;
this.signedAttributeSet = info.AuthenticatedAttributes;
this.unsignedAttributeSet = info.UnauthenticatedAttributes;
this.encryptionAlgorithm = info.DigestEncryptionAlgorithm;
this.signature = info.EncryptedDigest.GetOctets();
this.content = content;
this.digestCalculator = digestCalculator;
}
public override bool Equals(
object obj)
{
if (obj == this)
{
return(false);
}
SignerID id = obj as SignerID;
if (id == null)
{
return(false);
}
return(Arrays.AreEqual(SubjectKeyIdentifier, id.SubjectKeyIdentifier) &&
Platform.Equals(SerialNumber, id.SerialNumber) &&
IssuersMatch(Issuer, id.Issuer));
}