@SuppressWarnings("deprecation")
private byte[] fetchPrivateKeyFromBag(byte[] privateKeyInfo)
throws IOException, NoSuchAlgorithmException, CertificateException {
byte[] returnValue = null;
DerValue val = new DerValue(new ByteArrayInputStream(privateKeyInfo));
DerInputStream s = val.toDerInputStream();
int version = s.getInteger();
if (version != 3) {
throw new IOException("PKCS12 keystore not in version 3 format");
}
/*
* Read the authSafe.
*/
byte[] authSafeData;
ContentInfo authSafe = new ContentInfo(s);
ObjectIdentifier contentType = authSafe.getContentType();
if (contentType.equals(ContentInfo.DATA_OID)) {
authSafeData = authSafe.getData();
} else /* signed data */ {
throw new IOException("public key protected PKCS12 not supported");
}
DerInputStream as = new DerInputStream(authSafeData);
DerValue[] safeContentsArray = as.getSequence(2);
int count = safeContentsArray.length;
/*
* Spin over the ContentInfos.
*/
for (int i = 0; i < count; i++) {
byte[] safeContentsData;
ContentInfo safeContents;
DerInputStream sci;
byte[] eAlgId = null;
sci = new DerInputStream(safeContentsArray[i].toByteArray());
safeContents = new ContentInfo(sci);
contentType = safeContents.getContentType();
safeContentsData = null;
if (contentType.equals(ContentInfo.DATA_OID)) {
safeContentsData = safeContents.getData();
} else if (contentType.equals(ContentInfo.ENCRYPTED_DATA_OID)) {
// The password was used to export the private key from the keychain.
// The Keychain won't export the key with encrypted data, so we don't need
// to worry about it.
continue;
} else {
throw new IOException("public key protected PKCS12" + " not supported");
}
DerInputStream sc = new DerInputStream(safeContentsData);
returnValue = extractKeyData(sc);
}
return returnValue;
}
@SuppressWarnings("deprecation")
private byte[] extractKeyData(DerInputStream stream)
throws IOException, NoSuchAlgorithmException, CertificateException {
byte[] returnValue = null;
DerValue[] safeBags = stream.getSequence(2);
int count = safeBags.length;
/*
* Spin over the SafeBags.
*/
for (int i = 0; i < count; i++) {
ObjectIdentifier bagId;
DerInputStream sbi;
DerValue bagValue;
Object bagItem = null;
sbi = safeBags[i].toDerInputStream();
bagId = sbi.getOID();
bagValue = sbi.getDerValue();
if (!bagValue.isContextSpecific((byte) 0)) {
throw new IOException("unsupported PKCS12 bag value type " + bagValue.tag);
}
bagValue = bagValue.data.getDerValue();
if (bagId.equals(PKCS8ShroudedKeyBag_OID)) {
// got what we were looking for. Return it.
returnValue = bagValue.toByteArray();
} else {
// log error message for "unsupported PKCS12 bag type"
System.out.println("Unsupported bag type '" + bagId + "'");
}
}
return returnValue;
}
/*
* Create an OCSP response from its ASN.1 DER encoding.
*/
OCSPResponse(byte[] bytes) throws IOException {
if (dump) {
HexDumpEncoder hexEnc = new HexDumpEncoder();
System.out.println("OCSPResponse bytes are...");
System.out.println(hexEnc.encode(bytes));
}
DerValue der = new DerValue(bytes);
if (der.tag != DerValue.tag_Sequence) {
throw new IOException("Bad encoding in OCSP response: " + "expected ASN.1 SEQUENCE tag.");
}
DerInputStream derIn = der.getData();
// responseStatus
int status = derIn.getEnumerated();
if (status >= 0 && status < rsvalues.length) {
responseStatus = rsvalues[status];
} else {
// unspecified responseStatus
throw new IOException("Unknown OCSPResponse status: " + status);
}
if (debug != null) {
debug.println("OCSP response status: " + responseStatus);
}
if (responseStatus != ResponseStatus.SUCCESSFUL) {
// no need to continue, responseBytes are not set.
singleResponseMap = Collections.emptyMap();
certs = Collections.<X509CertImpl>emptyList();
sigAlgId = null;
signature = null;
tbsResponseData = null;
responseNonce = null;
return;
}
// responseBytes
der = derIn.getDerValue();
if (!der.isContextSpecific((byte) 0)) {
throw new IOException(
"Bad encoding in responseBytes element "
+ "of OCSP response: expected ASN.1 context specific tag 0.");
}
DerValue tmp = der.data.getDerValue();
if (tmp.tag != DerValue.tag_Sequence) {
throw new IOException(
"Bad encoding in responseBytes element "
+ "of OCSP response: expected ASN.1 SEQUENCE tag.");
}
// responseType
derIn = tmp.data;
ObjectIdentifier responseType = derIn.getOID();
if (responseType.equals((Object) OCSP_BASIC_RESPONSE_OID)) {
if (debug != null) {
debug.println("OCSP response type: basic");
}
} else {
if (debug != null) {
debug.println("OCSP response type: " + responseType);
}
throw new IOException("Unsupported OCSP response type: " + responseType);
}
// BasicOCSPResponse
DerInputStream basicOCSPResponse = new DerInputStream(derIn.getOctetString());
DerValue[] seqTmp = basicOCSPResponse.getSequence(2);
if (seqTmp.length < 3) {
throw new IOException("Unexpected BasicOCSPResponse value");
}
DerValue responseData = seqTmp[0];
// Need the DER encoded ResponseData to verify the signature later
tbsResponseData = seqTmp[0].toByteArray();
// tbsResponseData
if (responseData.tag != DerValue.tag_Sequence) {
throw new IOException(
"Bad encoding in tbsResponseData "
+ "element of OCSP response: expected ASN.1 SEQUENCE tag.");
}
DerInputStream seqDerIn = responseData.data;
DerValue seq = seqDerIn.getDerValue();
// version
if (seq.isContextSpecific((byte) 0)) {
// seq[0] is version
if (seq.isConstructed() && seq.isContextSpecific()) {
// System.out.println ("version is available");
seq = seq.data.getDerValue();
int version = seq.getInteger();
if (seq.data.available() != 0) {
throw new IOException(
"Bad encoding in version " + " element of OCSP response: bad format");
}
seq = seqDerIn.getDerValue();
}
}
// responderID
short tag = (byte) (seq.tag & 0x1f);
if (tag == NAME_TAG) {
if (debug != null) {
X500Principal responderName = new X500Principal(seq.getData().toByteArray());
debug.println("OCSP Responder name: " + responderName);
}
} else if (tag == KEY_TAG) {
if (debug != null) {
byte[] responderKey = seq.getData().getOctetString();
debug.println("OCSP Responder key: " + Debug.toString(responderKey));
}
} else {
throw new IOException(
"Bad encoding in responderID element of "
+ "OCSP response: expected ASN.1 context specific tag 0 or 1");
}
// producedAt
seq = seqDerIn.getDerValue();
if (debug != null) {
Date producedAtDate = seq.getGeneralizedTime();
debug.println("OCSP response produced at: " + producedAtDate);
}
// responses
DerValue[] singleResponseDer = seqDerIn.getSequence(1);
singleResponseMap = new HashMap<>(singleResponseDer.length);
if (debug != null) {
debug.println("OCSP number of SingleResponses: " + singleResponseDer.length);
}
for (int i = 0; i < singleResponseDer.length; i++) {
SingleResponse singleResponse = new SingleResponse(singleResponseDer[i]);
singleResponseMap.put(singleResponse.getCertId(), singleResponse);
}
// responseExtensions
byte[] nonce = null;
if (seqDerIn.available() > 0) {
seq = seqDerIn.getDerValue();
if (seq.isContextSpecific((byte) 1)) {
DerValue[] responseExtDer = seq.data.getSequence(3);
for (int i = 0; i < responseExtDer.length; i++) {
Extension ext = new Extension(responseExtDer[i]);
if (debug != null) {
debug.println("OCSP extension: " + ext);
}
// Only the NONCE extension is recognized
if (ext.getExtensionId().equals((Object) OCSP.NONCE_EXTENSION_OID)) {
nonce = ext.getExtensionValue();
} else if (ext.isCritical()) {
throw new IOException("Unsupported OCSP critical extension: " + ext.getExtensionId());
}
}
}
}
responseNonce = nonce;
// signatureAlgorithmId
sigAlgId = AlgorithmId.parse(seqTmp[1]);
// signature
signature = seqTmp[2].getBitString();
// if seq[3] is available , then it is a sequence of certificates
if (seqTmp.length > 3) {
// certs are available
DerValue seqCert = seqTmp[3];
if (!seqCert.isContextSpecific((byte) 0)) {
throw new IOException(
"Bad encoding in certs element of "
+ "OCSP response: expected ASN.1 context specific tag 0.");
}
DerValue[] derCerts = seqCert.getData().getSequence(3);
certs = new ArrayList<X509CertImpl>(derCerts.length);
try {
for (int i = 0; i < derCerts.length; i++) {
certs.add(new X509CertImpl(derCerts[i].toByteArray()));
}
} catch (CertificateException ce) {
throw new IOException("Bad encoding in X509 Certificate", ce);
}
} else {
certs = Collections.<X509CertImpl>emptyList();
}
}
