private byte[] getextensionbytes(string oid) {
extensions exts = c.gettbscertificate().getextensions();
if (exts != null) {
extension ext = exts.getextension(new asn1objectidentifier(oid));
if (ext != null) {
return ext.getextnvalue().getoctets();
}
}
return null;
}
public byte[] getextensionvalue(string oid) {
extensions exts = c.gettbscertificate().getextensions();
if (exts != null) {
extension ext = exts.getextension(new asn1objectidentifier(oid));
if (ext != null) {
try {
return ext.getextnvalue().getencoded();
} catch (exception e) {
throw new illegalstateexception("error parsing " + e.tostring());
}
}
}
return null;
}
public set getnoncriticalextensionoids() {
if (this.getversion() == 3) {
set set = new hashset();
extensions extensions = c.gettbscertificate().getextensions();
if (extensions != null) {
enumeration e = extensions.oids();
while (e.hasmoreelements()) {
asn1objectidentifier oid = (asn1objectidentifier) e.nextelement();
extension ext = extensions.getextension(oid);
if (!ext.iscritical()) {
set.add(oid.getid());
}
}
return set;
}
}
return null;
}
public boolean hasunsupportedcriticalextension() {
if (this.getversion() == 3) {
extensions extensions = c.gettbscertificate().getextensions();
if (extensions != null) {
enumeration e = extensions.oids();
while (e.hasmoreelements()) {
asn1objectidentifier oid = (asn1objectidentifier) e.nextelement();
string oidid = oid.getid();
if (oidid.equals(rfc3280certpathutilities.key_usage)
|| oidid.equals(rfc3280certpathutilities.certificate_policies)
|| oidid.equals(rfc3280certpathutilities.policy_mappings)
|| oidid.equals(rfc3280certpathutilities.inhibit_any_policy)
|| oidid.equals(rfc3280certpathutilities.crl_distribution_points)
|| oidid.equals(rfc3280certpathutilities.issuing_distribution_point)
|| oidid.equals(rfc3280certpathutilities.delta_crl_indicator)
|| oidid.equals(rfc3280certpathutilities.policy_constraints)
|| oidid.equals(rfc3280certpathutilities.basic_constraints)
|| oidid.equals(rfc3280certpathutilities.subject_alternative_name)
|| oidid.equals(rfc3280certpathutilities.name_constraints)) {
continue;
}
extension ext = extensions.getextension(oid);
if (ext.iscritical()) {
return true;
}
}
}
}
return false;
}
public string tostring() {
stringbuffer buf = new stringbuffer();
string nl = system.getproperty("line.separator");
buf.append(" [0] version: ").append(this.getversion()).append(nl);
buf.append(" serialnumber: ").append(this.getserialnumber()).append(nl);
buf.append(" issuerdn: ").append(this.getissuerdn()).append(nl);
buf.append(" start date: ").append(this.getnotbefore()).append(nl);
buf.append(" final date: ").append(this.getnotafter()).append(nl);
buf.append(" subjectdn: ").append(this.getsubjectdn()).append(nl);
buf.append(" public key: ").append(this.getpublickey()).append(nl);
buf.append(" signature algorithm: ").append(this.getsigalgname()).append(nl);
byte[] sig = this.getsignature();
buf.append(" signature: ").append(new string(hex.encode(sig, 0, 20))).append(nl);
for (int i = 20; i < sig.length; i += 20) {
if (i < sig.length - 20) {
buf.append(" ").append(new string(hex.encode(sig, i, 20))).append(nl);
} else {
buf.append(" ")
.append(new string(hex.encode(sig, i, sig.length - i)))
.append(nl);
}
}
extensions extensions = c.gettbscertificate().getextensions();
if (extensions != null) {
enumeration e = extensions.oids();
if (e.hasmoreelements()) {
buf.append(" extensions: \n");
}
while (e.hasmoreelements()) {
asn1objectidentifier oid = (asn1objectidentifier) e.nextelement();
extension ext = extensions.getextension(oid);
if (ext.getextnvalue() != null) {
byte[] octs = ext.getextnvalue().getoctets();
asn1inputstream din = new asn1inputstream(octs);
buf.append(" critical(").append(ext.iscritical()).append(") ");
try {
if (oid.equals(extension.basicconstraints)) {
buf.append(basicconstraints.getinstance(din.readobject())).append(nl);
} else if (oid.equals(extension.keyusage)) {
buf.append(keyusage.getinstance(din.readobject())).append(nl);
} else if (oid.equals(miscobjectidentifiers.netscapecerttype)) {
buf.append(new netscapecerttype((derbitstring) din.readobject())).append(nl);
} else if (oid.equals(miscobjectidentifiers.netscaperevocationurl)) {
buf.append(new netscaperevocationurl((deria5string) din.readobject())).append(nl);
} else if (oid.equals(miscobjectidentifiers.verisignczagextension)) {
buf.append(new verisignczagextension((deria5string) din.readobject())).append(nl);
} else {
buf.append(oid.getid());
buf.append(" value = ").append(asn1dump.dumpasstring(din.readobject())).append(nl);
// buf.append(" value = ").append("*****").append(nl);
}
} catch (exception ex) {
buf.append(oid.getid());
// buf.append(" value = ").append(new
// string(hex.encode(ext.getextnvalue().getoctets()))).append(nl);
buf.append(" value = ").append("*****").append(nl);
}
} else {
buf.append(nl);
}
}
}
return buf.tostring();
}
