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Pull request #2959: DEC-19773 refactor: itext适配新bouncycastle 

Merge in CORE/base-third from ~LIDONGY/base-third:feature/10.0 to feature/10.0

* commit '50062e47ba713057182f61f9aaab9ad42123d8e6':
  DEC-19773 refactor: itext适配新bouncycastle
feature/10.0
lidongy 3 years ago
parent
a1ad3bb2ed 50062e47ba
commit
77530b3125
4 changed files with 1171 additions and 973 deletions
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  1. 783
      fine-itext-old/src/main/java/com/fr/third/com/lowagie/text/pdf/PdfPKCS7.java
  2. 246
      fine-itext-old/src/main/java/com/fr/third/com/lowagie/text/pdf/PdfPublicKeySecurityHandler.java
  3. 785
      fine-itext/src/main/java/com/fr/third/v2/lowagie/text/pdf/PdfPKCS7.java
  4. 330
      fine-itext/src/main/java/com/fr/third/v2/lowagie/text/pdf/PdfPublicKeySecurityHandler.java

783
fine-itext-old/src/main/java/com/fr/third/com/lowagie/text/pdf/PdfPKCS7.java
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246
fine-itext-old/src/main/java/com/fr/third/com/lowagie/text/pdf/PdfPublicKeySecurityHandler.java
Unescape View File

@ -48,12 +48,40 @@
*/
/**
* The below 2 methods are from pdfbox.
*
* private DERObject createDERForRecipient(byte[] in, X509Certificate cert) ;
* private KeyTransRecipientInfo computeRecipientInfo(X509Certificate x509certificate, byte[] abyte0);
*
* 2006-11-22 Aiken Sam.
* The below 2 methods are from pdfbox.
* <p>
* private DERObject createDERForRecipient(byte[] in, X509Certificate cert) ;
* private KeyTransRecipientInfo computeRecipientInfo(X509Certificate x509certificate, byte[] abyte0);
* <p>
* 2006-11-22 Aiken Sam.
* <p>
* Copyright (c) 2003-2006, www.pdfbox.org
* All rights reserved.
* <p>
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* <p>
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of pdfbox; nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
* <p>
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* <p>
* http://www.pdfbox.org
*/
/**
@ -90,7 +118,9 @@
package com.fr.third.com.lowagie.text.pdf;
import com.fr.third.org.bouncycastle.asn1.ASN1Object;
import com.fr.third.org.bouncycastle.asn1.ASN1OutputStream;
import com.fr.third.org.bouncycastle.asn1.ASN1Set;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
@ -110,9 +140,8 @@ import javax.crypto.KeyGenerator;
import javax.crypto.SecretKey;
import com.fr.third.org.bouncycastle.asn1.ASN1InputStream;
import com.fr.third.org.bouncycastle.asn1.DERObjectIdentifier;
import com.fr.third.org.bouncycastle.asn1.ASN1ObjectIdentifier;
import com.fr.third.org.bouncycastle.asn1.DEROctetString;
import com.fr.third.org.bouncycastle.asn1.DEROutputStream;
import com.fr.third.org.bouncycastle.asn1.DERSet;
import com.fr.third.org.bouncycastle.asn1.cms.ContentInfo;
import com.fr.third.org.bouncycastle.asn1.cms.EncryptedContentInfo;
@ -129,11 +158,11 @@ import com.fr.third.org.bouncycastle.asn1.x509.TBSCertificateStructure;
* @author Aiken Sam (aikensam@ieee.org)
*/
public class PdfPublicKeySecurityHandler {
static final int SEED_LENGTH = 20;
private ArrayList recipients = null;
private byte[] seed = new byte[SEED_LENGTH];
public PdfPublicKeySecurityHandler() {
@ -141,56 +170,57 @@ public class PdfPublicKeySecurityHandler {
try {
key = KeyGenerator.getInstance("AES");
key.init(192, new SecureRandom());
SecretKey sk = key.generateKey();
SecretKey sk = key.generateKey();
System.arraycopy(sk.getEncoded(), 0, seed, 0, SEED_LENGTH); // create the 20 bytes seed
} catch (NoSuchAlgorithmException e) {
seed = SecureRandom.getSeed(SEED_LENGTH);
seed = SecureRandom.getSeed(SEED_LENGTH);
}
recipients = new ArrayList();
}
/*
/*
* Routine for decode output of PdfContentByte.escapeString(byte[] bytes).
* It should be moved to PdfContentByte.
* It should be moved to PdfContentByte.
*/
static public byte[] unescapedString(byte[] bytes) throws BadPdfFormatException {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
int index = 0;
if (bytes[0] != '(' && bytes[bytes.length-1] != ')') throw new BadPdfFormatException("Expect '(' and ')' at begin and end of the string.");
if (bytes[0] != '(' && bytes[bytes.length - 1] != ')')
throw new BadPdfFormatException("Expect '(' and ')' at begin and end of the string.");
while (index < bytes.length) {
if (bytes[index] == '\\') {
index++;
switch (bytes[index]) {
case 'b':
baos.write('\b');
break;
case 'f':
baos.write('\f');
break;
case 't':
baos.write('\t');
break;
case 'n':
baos.write('\n');
break;
case 'r':
baos.write('\r');
break;
case '(':
case 'b':
baos.write('\b');
break;
case 'f':
baos.write('\f');
break;
case 't':
baos.write('\t');
break;
case 'n':
baos.write('\n');
break;
case 'r':
baos.write('\r');
break;
case '(':
baos.write('(');
break;
case ')':
case ')':
baos.write(')');
break;
case '\\':
baos.write('\\');
break;
break;
case '\\':
baos.write('\\');
break;
}
} else
baos.write(bytes[index]);
@ -198,92 +228,91 @@ public class PdfPublicKeySecurityHandler {
}
return baos.toByteArray();
}
public void addRecipient(PdfPublicKeyRecipient recipient) {
recipients.add(recipient);
}
protected byte[] getSeed() {
return (byte[])seed.clone();
return (byte[]) seed.clone();
}
/*
public PdfPublicKeyRecipient[] getRecipients() {
recipients.toArray();
return (PdfPublicKeyRecipient[])recipients.toArray();
}*/
public int getRecipientsSize() {
return recipients.size();
}
public byte[] getEncodedRecipient(int index) throws IOException, GeneralSecurityException {
//Certificate certificate = recipient.getX509();
PdfPublicKeyRecipient recipient = (PdfPublicKeyRecipient)recipients.get(index);
PdfPublicKeyRecipient recipient = (PdfPublicKeyRecipient) recipients.get(index);
byte[] cms = recipient.getCms();
if (cms != null) return cms;
Certificate certificate = recipient.getCertificate();
int permission = recipient.getPermission();//PdfWriter.AllowCopy | PdfWriter.AllowPrinting | PdfWriter.AllowScreenReaders | PdfWriter.AllowAssembly;
Certificate certificate = recipient.getCertificate();
int permission = recipient.getPermission();//PdfWriter.AllowCopy | PdfWriter.AllowPrinting | PdfWriter.AllowScreenReaders | PdfWriter.AllowAssembly;
int revision = 3;
permission |= revision==3 ? 0xfffff0c0 : 0xffffffc0;
permission |= revision == 3 ? 0xfffff0c0 : 0xffffffc0;
permission &= 0xfffffffc;
permission += 1;
byte[] pkcs7input = new byte[24];
byte one = (byte)(permission);
byte two = (byte)(permission >> 8);
byte three = (byte)(permission >> 16);
byte four = (byte)(permission >> 24);
byte one = (byte) (permission);
byte two = (byte) (permission >> 8);
byte three = (byte) (permission >> 16);
byte four = (byte) (permission >> 24);
System.arraycopy(seed, 0, pkcs7input, 0, 20); // put this seed in the pkcs7 input
pkcs7input[20] = four;
pkcs7input[21] = three;
pkcs7input[21] = three;
pkcs7input[22] = two;
pkcs7input[23] = one;
ASN1Object obj = createDERForRecipient(pkcs7input, (X509Certificate)certificate);
ASN1Object obj = createDERForRecipient(pkcs7input, (X509Certificate) certificate);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
DEROutputStream k = new DEROutputStream(baos);
k.writeObject(obj);
ASN1OutputStream k = ASN1OutputStream.create(baos);
k.writeObject(obj);
cms = baos.toByteArray();
recipient.setCms(cms);
return cms;
return cms;
}
public PdfArray getEncodedRecipients() throws IOException,
GeneralSecurityException {
public PdfArray getEncodedRecipients() throws IOException,
GeneralSecurityException {
PdfArray EncodedRecipients = new PdfArray();
byte[] cms = null;
for (int i=0; i<recipients.size(); i++)
try {
cms = getEncodedRecipient(i);
EncodedRecipients.add(new PdfLiteral(PdfContentByte.escapeString(cms)));
} catch (GeneralSecurityException e) {
EncodedRecipients = null;
} catch (IOException e) {
EncodedRecipients = null;
}
for (int i = 0; i < recipients.size(); i++)
try {
cms = getEncodedRecipient(i);
EncodedRecipients.add(new PdfLiteral(PdfContentByte.escapeString(cms)));
} catch (GeneralSecurityException e) {
EncodedRecipients = null;
} catch (IOException e) {
EncodedRecipients = null;
}
return EncodedRecipients;
}
private ASN1Object createDERForRecipient(byte[] in, X509Certificate cert)
throws IOException,
GeneralSecurityException
{
throws IOException,
GeneralSecurityException {
String s = "1.2.840.113549.3.2";
AlgorithmParameterGenerator algorithmparametergenerator = AlgorithmParameterGenerator.getInstance(s);
AlgorithmParameters algorithmparameters = algorithmparametergenerator.generateParameters();
ByteArrayInputStream bytearrayinputstream = new ByteArrayInputStream(algorithmparameters.getEncoded("ASN.1"));
@ -298,31 +327,30 @@ public class PdfPublicKeySecurityHandler {
DEROctetString deroctetstring = new DEROctetString(abyte1);
KeyTransRecipientInfo keytransrecipientinfo = computeRecipientInfo(cert, secretkey.getEncoded());
DERSet derset = new DERSet(new RecipientInfo(keytransrecipientinfo));
AlgorithmIdentifier algorithmidentifier = new AlgorithmIdentifier(new DERObjectIdentifier(s), derobject);
EncryptedContentInfo encryptedcontentinfo =
new EncryptedContentInfo(PKCSObjectIdentifiers.data, algorithmidentifier, deroctetstring);
EnvelopedData env = new EnvelopedData(null, derset, encryptedcontentinfo,(ASN1Set) null);
ContentInfo contentinfo =
new ContentInfo(PKCSObjectIdentifiers.envelopedData, env);
AlgorithmIdentifier algorithmidentifier = new AlgorithmIdentifier(new ASN1ObjectIdentifier(s), derobject);
EncryptedContentInfo encryptedcontentinfo =
new EncryptedContentInfo(PKCSObjectIdentifiers.data, algorithmidentifier, deroctetstring);
EnvelopedData env = new EnvelopedData(null, derset, encryptedcontentinfo, (ASN1Set) null);
ContentInfo contentinfo =
new ContentInfo(PKCSObjectIdentifiers.envelopedData, env);
return contentinfo.getContentType();
}
private KeyTransRecipientInfo computeRecipientInfo(X509Certificate x509certificate, byte[] abyte0)
throws GeneralSecurityException, IOException
{
ASN1InputStream asn1inputstream =
new ASN1InputStream(new ByteArrayInputStream(x509certificate.getTBSCertificate()));
TBSCertificateStructure tbscertificatestructure =
TBSCertificateStructure.getInstance(asn1inputstream.readObject());
throws GeneralSecurityException, IOException {
ASN1InputStream asn1inputstream =
new ASN1InputStream(new ByteArrayInputStream(x509certificate.getTBSCertificate()));
TBSCertificateStructure tbscertificatestructure =
TBSCertificateStructure.getInstance(asn1inputstream.readObject());
AlgorithmIdentifier algorithmidentifier = tbscertificatestructure.getSubjectPublicKeyInfo().getAlgorithmId();
IssuerAndSerialNumber issuerandserialnumber =
new IssuerAndSerialNumber(
tbscertificatestructure.getIssuer(),
tbscertificatestructure.getSerialNumber().getValue());
IssuerAndSerialNumber issuerandserialnumber =
new IssuerAndSerialNumber(
tbscertificatestructure.getIssuer(),
tbscertificatestructure.getSerialNumber().getValue());
Cipher cipher = Cipher.getInstance(algorithmidentifier.getAlgorithm().getId());
cipher.init(1, x509certificate);
DEROctetString deroctetstring = new DEROctetString(cipher.doFinal(abyte0));
RecipientIdentifier recipId = new RecipientIdentifier(issuerandserialnumber);
return new KeyTransRecipientInfo( recipId, algorithmidentifier, deroctetstring);
return new KeyTransRecipientInfo(recipId, algorithmidentifier, deroctetstring);
}
}

785
fine-itext/src/main/java/com/fr/third/v2/lowagie/text/pdf/PdfPKCS7.java
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fine-itext/src/main/java/com/fr/third/v2/lowagie/text/pdf/PdfPublicKeySecurityHandler.java
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@ -48,12 +48,124 @@
*/
/**
* The below 2 methods are from pdfbox.
*
* private DERObject createDERForRecipient(byte[] in, X509Certificate cert) ;
* private KeyTransRecipientInfo computeRecipientInfo(X509Certificate x509certificate, byte[] abyte0);
*
* 2006-11-22 Aiken Sam.
* The below 2 methods are from pdfbox.
* <p>
* private DERObject createDERForRecipient(byte[] in, X509Certificate cert) ;
* private KeyTransRecipientInfo computeRecipientInfo(X509Certificate x509certificate, byte[] abyte0);
* <p>
* 2006-11-22 Aiken Sam.
* <p>
* Copyright (c) 2003-2006, www.pdfbox.org
* All rights reserved.
* <p>
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* <p>
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of pdfbox; nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
* <p>
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* <p>
* http://www.pdfbox.org
* <p>
* Copyright (c) 2003-2006, www.pdfbox.org
* All rights reserved.
* <p>
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* <p>
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of pdfbox; nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
* <p>
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* <p>
* http://www.pdfbox.org
* <p>
* Copyright (c) 2003-2006, www.pdfbox.org
* All rights reserved.
* <p>
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* <p>
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of pdfbox; nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
* <p>
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* <p>
* http://www.pdfbox.org
* <p>
* Copyright (c) 2003-2006, www.pdfbox.org
* All rights reserved.
* <p>
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* <p>
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of pdfbox; nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
* <p>
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* <p>
* http://www.pdfbox.org
*/
/**
@ -90,7 +202,9 @@
package com.fr.third.v2.lowagie.text.pdf;
import com.fr.third.org.bouncycastle.asn1.ASN1Object;
import com.fr.third.org.bouncycastle.asn1.ASN1OutputStream;
import com.fr.third.org.bouncycastle.asn1.ASN1Set;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
@ -110,9 +224,8 @@ import javax.crypto.KeyGenerator;
import javax.crypto.SecretKey;
import com.fr.third.org.bouncycastle.asn1.ASN1InputStream;
import com.fr.third.org.bouncycastle.asn1.DERObjectIdentifier;
import com.fr.third.org.bouncycastle.asn1.ASN1ObjectIdentifier;
import com.fr.third.org.bouncycastle.asn1.DEROctetString;
import com.fr.third.org.bouncycastle.asn1.DEROutputStream;
import com.fr.third.org.bouncycastle.asn1.DERSet;
import com.fr.third.org.bouncycastle.asn1.cms.ContentInfo;
import com.fr.third.org.bouncycastle.asn1.cms.EncryptedContentInfo;
@ -129,11 +242,11 @@ import com.fr.third.org.bouncycastle.asn1.x509.TBSCertificateStructure;
* @author Aiken Sam (aikensam@ieee.org)
*/
public class PdfPublicKeySecurityHandler {
static final int SEED_LENGTH = 20;
private ArrayList recipients = null;
private byte[] seed = new byte[SEED_LENGTH];
public PdfPublicKeySecurityHandler() {
@ -141,56 +254,57 @@ public class PdfPublicKeySecurityHandler {
try {
key = KeyGenerator.getInstance("AES");
key.init(192, new SecureRandom());
SecretKey sk = key.generateKey();
SecretKey sk = key.generateKey();
System.arraycopy(sk.getEncoded(), 0, seed, 0, SEED_LENGTH); // create the 20 bytes seed
} catch (NoSuchAlgorithmException e) {
seed = SecureRandom.getSeed(SEED_LENGTH);
seed = SecureRandom.getSeed(SEED_LENGTH);
}
recipients = new ArrayList();
}
/*
/*
* Routine for decode output of PdfContentByte.escapeString(byte[] bytes).
* It should be moved to PdfContentByte.
* It should be moved to PdfContentByte.
*/
static public byte[] unescapedString(byte[] bytes) throws BadPdfFormatException {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
int index = 0;
if (bytes[0] != '(' && bytes[bytes.length-1] != ')') throw new BadPdfFormatException("Expect '(' and ')' at begin and end of the string.");
if (bytes[0] != '(' && bytes[bytes.length - 1] != ')')
throw new BadPdfFormatException("Expect '(' and ')' at begin and end of the string.");
while (index < bytes.length) {
if (bytes[index] == '\\') {
index++;
switch (bytes[index]) {
case 'b':
baos.write('\b');
break;
case 'f':
baos.write('\f');
break;
case 't':
baos.write('\t');
break;
case 'n':
baos.write('\n');
break;
case 'r':
baos.write('\r');
break;
case '(':
case 'b':
baos.write('\b');
break;
case 'f':
baos.write('\f');
break;
case 't':
baos.write('\t');
break;
case 'n':
baos.write('\n');
break;
case 'r':
baos.write('\r');
break;
case '(':
baos.write('(');
break;
case ')':
case ')':
baos.write(')');
break;
case '\\':
baos.write('\\');
break;
break;
case '\\':
baos.write('\\');
break;
}
} else
baos.write(bytes[index]);
@ -198,92 +312,91 @@ public class PdfPublicKeySecurityHandler {
}
return baos.toByteArray();
}
public void addRecipient(PdfPublicKeyRecipient recipient) {
recipients.add(recipient);
}
protected byte[] getSeed() {
return (byte[])seed.clone();
return (byte[]) seed.clone();
}
/*
public PdfPublicKeyRecipient[] getRecipients() {
recipients.toArray();
return (PdfPublicKeyRecipient[])recipients.toArray();
}*/
public int getRecipientsSize() {
return recipients.size();
}
public byte[] getEncodedRecipient(int index) throws IOException, GeneralSecurityException {
//Certificate certificate = recipient.getX509();
PdfPublicKeyRecipient recipient = (PdfPublicKeyRecipient)recipients.get(index);
PdfPublicKeyRecipient recipient = (PdfPublicKeyRecipient) recipients.get(index);
byte[] cms = recipient.getCms();
if (cms != null) return cms;
Certificate certificate = recipient.getCertificate();
int permission = recipient.getPermission();//PdfWriter.AllowCopy | PdfWriter.AllowPrinting | PdfWriter.AllowScreenReaders | PdfWriter.AllowAssembly;
Certificate certificate = recipient.getCertificate();
int permission = recipient.getPermission();//PdfWriter.AllowCopy | PdfWriter.AllowPrinting | PdfWriter.AllowScreenReaders | PdfWriter.AllowAssembly;
int revision = 3;
permission |= revision==3 ? 0xfffff0c0 : 0xffffffc0;
permission |= revision == 3 ? 0xfffff0c0 : 0xffffffc0;
permission &= 0xfffffffc;
permission += 1;
byte[] pkcs7input = new byte[24];
byte one = (byte)(permission);
byte two = (byte)(permission >> 8);
byte three = (byte)(permission >> 16);
byte four = (byte)(permission >> 24);
byte one = (byte) (permission);
byte two = (byte) (permission >> 8);
byte three = (byte) (permission >> 16);
byte four = (byte) (permission >> 24);
System.arraycopy(seed, 0, pkcs7input, 0, 20); // put this seed in the pkcs7 input
pkcs7input[20] = four;
pkcs7input[21] = three;
pkcs7input[21] = three;
pkcs7input[22] = two;
pkcs7input[23] = one;
ASN1Object obj = createDERForRecipient(pkcs7input, (X509Certificate)certificate);
ASN1Object obj = createDERForRecipient(pkcs7input, (X509Certificate) certificate);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
DEROutputStream k = new DEROutputStream(baos);
k.writeObject(obj);
ASN1OutputStream k = ASN1OutputStream.create(baos);
k.writeObject(obj);
cms = baos.toByteArray();
recipient.setCms(cms);
return cms;
return cms;
}
public PdfArray getEncodedRecipients() throws IOException,
GeneralSecurityException {
public PdfArray getEncodedRecipients() throws IOException,
GeneralSecurityException {
PdfArray EncodedRecipients = new PdfArray();
byte[] cms = null;
for (int i=0; i<recipients.size(); i++)
try {
cms = getEncodedRecipient(i);
EncodedRecipients.add(new PdfLiteral(PdfContentByte.escapeString(cms)));
} catch (GeneralSecurityException e) {
EncodedRecipients = null;
} catch (IOException e) {
EncodedRecipients = null;
}
for (int i = 0; i < recipients.size(); i++)
try {
cms = getEncodedRecipient(i);
EncodedRecipients.add(new PdfLiteral(PdfContentByte.escapeString(cms)));
} catch (GeneralSecurityException e) {
EncodedRecipients = null;
} catch (IOException e) {
EncodedRecipients = null;
}
return EncodedRecipients;
}
private ASN1Object createDERForRecipient(byte[] in, X509Certificate cert)
throws IOException,
GeneralSecurityException
{
throws IOException,
GeneralSecurityException {
String s = "1.2.840.113549.3.2";
AlgorithmParameterGenerator algorithmparametergenerator = AlgorithmParameterGenerator.getInstance(s);
AlgorithmParameters algorithmparameters = algorithmparametergenerator.generateParameters();
ByteArrayInputStream bytearrayinputstream = new ByteArrayInputStream(algorithmparameters.getEncoded("ASN.1"));
@ -298,31 +411,30 @@ public class PdfPublicKeySecurityHandler {
DEROctetString deroctetstring = new DEROctetString(abyte1);
KeyTransRecipientInfo keytransrecipientinfo = computeRecipientInfo(cert, secretkey.getEncoded());
DERSet derset = new DERSet(new RecipientInfo(keytransrecipientinfo));
AlgorithmIdentifier algorithmidentifier = new AlgorithmIdentifier(new DERObjectIdentifier(s), derobject);
EncryptedContentInfo encryptedcontentinfo =
new EncryptedContentInfo(PKCSObjectIdentifiers.data, algorithmidentifier, deroctetstring);
EnvelopedData env = new EnvelopedData(null, derset, encryptedcontentinfo,(ASN1Set) null);
ContentInfo contentinfo =
new ContentInfo(PKCSObjectIdentifiers.envelopedData, env);
AlgorithmIdentifier algorithmidentifier = new AlgorithmIdentifier(new ASN1ObjectIdentifier(s), derobject);
EncryptedContentInfo encryptedcontentinfo =
new EncryptedContentInfo(PKCSObjectIdentifiers.data, algorithmidentifier, deroctetstring);
EnvelopedData env = new EnvelopedData(null, derset, encryptedcontentinfo, (ASN1Set) null);
ContentInfo contentinfo =
new ContentInfo(PKCSObjectIdentifiers.envelopedData, env);
return contentinfo.getContentType();
}
private KeyTransRecipientInfo computeRecipientInfo(X509Certificate x509certificate, byte[] abyte0)
throws GeneralSecurityException, IOException
{
ASN1InputStream asn1inputstream =
new ASN1InputStream(new ByteArrayInputStream(x509certificate.getTBSCertificate()));
TBSCertificateStructure tbscertificatestructure =
TBSCertificateStructure.getInstance(asn1inputstream.readObject());
throws GeneralSecurityException, IOException {
ASN1InputStream asn1inputstream =
new ASN1InputStream(new ByteArrayInputStream(x509certificate.getTBSCertificate()));
TBSCertificateStructure tbscertificatestructure =
TBSCertificateStructure.getInstance(asn1inputstream.readObject());
AlgorithmIdentifier algorithmidentifier = tbscertificatestructure.getSubjectPublicKeyInfo().getAlgorithmId();
IssuerAndSerialNumber issuerandserialnumber =
new IssuerAndSerialNumber(
tbscertificatestructure.getIssuer(),
tbscertificatestructure.getSerialNumber().getValue());
IssuerAndSerialNumber issuerandserialnumber =
new IssuerAndSerialNumber(
tbscertificatestructure.getIssuer(),
tbscertificatestructure.getSerialNumber().getValue());
Cipher cipher = Cipher.getInstance(algorithmidentifier.getAlgorithm().getId());
cipher.init(1, x509certificate);
DEROctetString deroctetstring = new DEROctetString(cipher.doFinal(abyte0));
RecipientIdentifier recipId = new RecipientIdentifier(issuerandserialnumber);
return new KeyTransRecipientInfo( recipId, algorithmidentifier, deroctetstring);
return new KeyTransRecipientInfo(recipId, algorithmidentifier, deroctetstring);
}
}

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