public SignerInfo(
Asn1Sequence seq)
{
IEnumerator e = seq.GetEnumerator();
e.MoveNext();
version = (DerInteger) e.Current;
e.MoveNext();
sid = SignerIdentifier.GetInstance(e.Current);
e.MoveNext();
digAlgorithm = AlgorithmIdentifier.GetInstance(e.Current);
e.MoveNext();
object obj = e.Current;
if (obj is Asn1TaggedObject)
{
authenticatedAttributes = Asn1Set.GetInstance((Asn1TaggedObject) obj, false);
e.MoveNext();
digEncryptionAlgorithm = AlgorithmIdentifier.GetInstance(e.Current);
}
else
{
authenticatedAttributes = null;
digEncryptionAlgorithm = AlgorithmIdentifier.GetInstance(obj);
}
e.MoveNext();
encryptedDigest = DerOctetString.GetInstance(e.Current);
if (e.MoveNext())
{
unauthenticatedAttributes = Asn1Set.GetInstance((Asn1TaggedObject) e.Current, false);
}
else
{
unauthenticatedAttributes = null;
}
}
public SignerInfo(
Asn1Sequence seq)
{
IEnumerator e = seq.GetEnumerator();
e.MoveNext();
version = (DerInteger)e.Current;
e.MoveNext();
sid = SignerIdentifier.GetInstance(e.Current);
e.MoveNext();
digAlgorithm = AlgorithmIdentifier.GetInstance(e.Current);
e.MoveNext();
object obj = e.Current;
if (obj is Asn1TaggedObject)
{
authenticatedAttributes = Asn1Set.GetInstance((Asn1TaggedObject)obj, false);
e.MoveNext();
digEncryptionAlgorithm = AlgorithmIdentifier.GetInstance(e.Current);
}
else
{
authenticatedAttributes = null;
digEncryptionAlgorithm = AlgorithmIdentifier.GetInstance(obj);
}
e.MoveNext();
encryptedDigest = DerOctetString.GetInstance(e.Current);
if (e.MoveNext())
{
unauthenticatedAttributes = Asn1Set.GetInstance((Asn1TaggedObject)e.Current, false);
}
else
{
unauthenticatedAttributes = null;
}
}
public SignerInfo(
SignerIdentifier sid,
AlgorithmIdentifier digAlgorithm,
Asn1Set authenticatedAttributes,
AlgorithmIdentifier digEncryptionAlgorithm,
Asn1OctetString encryptedDigest,
Asn1Set unauthenticatedAttributes)
{
if (sid.IsTagged)
{
this.version = new DerInteger(3);
}
else
{
this.version = new DerInteger(1);
}
this.sid = sid;
this.digAlgorithm = digAlgorithm;
this.authenticatedAttributes = authenticatedAttributes;
this.digEncryptionAlgorithm = digEncryptionAlgorithm;
this.encryptedDigest = encryptedDigest;
this.unauthenticatedAttributes = unauthenticatedAttributes;
}
public SignerInfo(
SignerIdentifier sid,
AlgorithmIdentifier digAlgorithm,
Asn1Set authenticatedAttributes,
AlgorithmIdentifier digEncryptionAlgorithm,
Asn1OctetString encryptedDigest,
Asn1Set unauthenticatedAttributes)
{
if (sid.IsTagged)
{
this.version = new DerInteger(3);
}
else
{
this.version = new DerInteger(1);
}
this.sid = sid;
this.digAlgorithm = digAlgorithm;
this.authenticatedAttributes = authenticatedAttributes;
this.digEncryptionAlgorithm = digEncryptionAlgorithm;
this.encryptedDigest = encryptedDigest;
this.unauthenticatedAttributes = unauthenticatedAttributes;
}
internal SignerInfoGeneratorImpl(CmsSignedDataStreamGenerator outer, AsymmetricKeyParameter key, SignerIdentifier signerIdentifier, string digestOID,
string encOID, CmsAttributeTableGenerator sAttr, CmsAttributeTableGenerator unsAttr)
{
_outer = outer;
_signerIdentifier = signerIdentifier;
_digestOID = digestOID;
_encOID = encOID;
_sAttr = sAttr;
_unsAttr = unsAttr;
_encName = Helper.GetEncryptionAlgName(_encOID);
string digestName = Helper.GetDigestAlgName(_digestOID);
string signatureName = digestName + "with" + _encName;
if (_sAttr != null)
{
_sig = Helper.GetSignatureInstance(signatureName);
}
else
{
// Note: Need to use raw signatures here since we have already calculated the digest
if (_encName.Equals("RSA"))
{
_sig = Helper.GetSignatureInstance("RSA");
}
else if (_encName.Equals("DSA"))
{
_sig = Helper.GetSignatureInstance("NONEwithDSA");
}
// TODO Add support for raw PSS
// else if (_encName.equals("RSAandMGF1"))
// {
// _sig = CMSSignedHelper.INSTANCE.getSignatureInstance("NONEWITHRSAPSS", _sigProvider);
// try
// {
// // Init the params this way to avoid having a 'raw' version of each PSS algorithm
// Signature sig2 = CMSSignedHelper.INSTANCE.getSignatureInstance(signatureName, _sigProvider);
// PSSParameterSpec spec = (PSSParameterSpec)sig2.getParameters().getParameterSpec(PSSParameterSpec.class);
// _sig.setParameter(spec);
// }
// catch (Exception e)
// {
// throw new SignatureException("algorithm: " + _encName + " could not be configured.");
// }
// }
else
{
throw new SignatureException("algorithm: " + _encName + " not supported in base signatures.");
}
}
_sig.Init(true, new ParametersWithRandom(key, outer.rand));
}
private void DoAddSigner(AsymmetricKeyParameter privateKey, SignerIdentifier signerIdentifier, string encryptionOid, string digestOid,
CmsAttributeTableGenerator signedAttrGenerator, CmsAttributeTableGenerator unsignedAttrGenerator)
{
ConfigureDigest(digestOid);
var signerInf = new SignerInfoGeneratorImpl(this, privateKey, signerIdentifier, digestOid, encryptionOid, signedAttrGenerator, unsignedAttrGenerator);
_signerInfs.Add(new DigestAndSignerInfoGeneratorHolder(signerInf, digestOid));
}
internal SignerInf(CmsSignedGenerator outer, AsymmetricKeyParameter key, SignerIdentifier signerIdentifier, string digestOID, string encOID,
CmsAttributeTableGenerator sAttr, CmsAttributeTableGenerator unsAttr, Asn1.Cms.AttributeTable baseSignedTable)
{
_outer = outer;
_key = key;
_signerIdentifier = signerIdentifier;
_digestOID = digestOID;
_encOID = encOID;
_sAttr = sAttr;
_unsAttr = unsAttr;
_baseSignedTable = baseSignedTable;
}
private void DoAddSigner(AsymmetricKeyParameter privateKey, SignerIdentifier signerIdentifier, string encryptionOID, string digestOID,
CmsAttributeTableGenerator signedAttrGen, CmsAttributeTableGenerator unsignedAttrGen, Asn1.Cms.AttributeTable baseSignedTable)
{
_signerInfs.Add(new SignerInf(this, privateKey, signerIdentifier, digestOID, encryptionOID, signedAttrGen, unsignedAttrGen, baseSignedTable));
}
