pdf文件签名的问题解决

今天解决冲突的jar，结果出现下面的问题

java.lang.IllegalAccessError: tried to access method org.bouncycastle.asn1.DERNull.<init>()V from class com.itextpdf.text.pdf.security.PdfPKCS7at com.itextpdf.text.pdf.security.PdfPKCS7.getEncodedPKCS7(PdfPKCS7.java:836)at com.itextpdf.text.pdf.security.MakeSignature.signDetached(MakeSignature.java:154)at com.whty.einv.sks.model.util.SignatureUtil.sign(SignatureUtil.java:97)at com.whty.einv.sks.model.util.SignatureUtil.sign(SignatureUtil.java:157)at com.whty.einv.sks.model.util.SignatureUtil.sign(SignatureUtil.java:143)at com.whty.einv.sks.model.service.impl.LocalSignatureStrategy.sign(LocalSignatureStrategy.java:38)at com.whty.einv.sks.model.service.AbstractInvoicePdfService.genPdf(AbstractInvoicePdfService.java:135)at com.whty.einv.sks.model.service.AbstractInvoicePdfService.genPdf(AbstractInvoicePdfService.java:99)at com.whty.einv.sks.model.service.AbstractInvoicePdfService.asyncGenPdf(AbstractInvoicePdfService.java:77)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.lang.reflect.Method.invoke(Method.java:498)at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:344)at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:198)at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)at org.springframework.aop.interceptor.AsyncExecutionInterceptor.lambda$invoke$0(AsyncExecutionInterceptor.java:115)at java.util.concurrent.FutureTask.run(FutureTask.java:266)at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)at java.util.concurrent.ThreadPoolExecutor$Worker.run(Thr

按照kotlin 使用Itext5签署PDF在Quarkus中出现错误“PdfPKCS7无法访问void org.bouncycastle.asn1.DERNull.< init>()”
设置并不能解决问题。

 <dependency><groupId>org.bouncycastle</groupId><artifactId>bcprov-jdk15on</artifactId><version>1.70</version></dependency>

按照PDF文件的数字签名编写，再本地可以运行，但是发布到容器环境中，提示下面的错误,主要原还是因为bcprov-jdk15on，因为jar冲突被排除了。

java.lang.NoClassDefFoundError: org/bouncycastle/jcajce/provider/digest/MD2$Digestat com.whty.einv.sks.model.util.SignUtil.sign(SignUtil.java:111)at com.whty.einv.sks.model.util.SignUtil.sign(SignUtil.java:83)at com.whty.einv.sks.model.util.SignUtil.sign(SignUtil.java:69)at com.whty.einv.sks.model.service.impl.LocalSignatureStrategy.sign(LocalSignatureStrategy.java:38)at com.whty.einv.sks.model.service.AbstractInvoicePdfService.genPdf(AbstractInvoicePdfService.java:135)at com.whty.einv.sks.model.service.AbstractInvoicePdfService.genPdf(AbstractInvoicePdfService.java:99)at com.whty.einv.sks.model.service.AbstractInvoicePdfService.asyncGenPdf(AbstractInvoicePdfService.java:77)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.lang.reflect.Method.invoke(Method.java:498)at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:344)at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:198)at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)at org.springframework.aop.interceptor.AsyncExecutionInterceptor.lambda$invoke$0(AsyncExecutionInterceptor.java:115)at java.util.concurrent.FutureTask.run(FutureTask.java:266)at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.ClassNotFoundException: org.bouncycastle.jcajce.provider.digest.MD2$Digestat java.net.URLClassLoader.findClass(URLClassLoader.java:382)at java.lang.ClassLoader.loadClass(ClassLoader.java:424)at org.springframework.boot.loader.LaunchedURLClassLoader.loadClass(LaunchedURLClassLoader.java:135)at java.lang.ClassLoader.loadClass(ClassLoader.java:357)... 19 common frames omitted

现在对比一下新模式,这里的reason是必填，否则会报错，与旧模式有区别

package com.whty.einv.sks.model.util;import com.itextpdf.io.image.ImageData;
import com.itextpdf.io.image.ImageDataFactory;
import com.itextpdf.kernel.geom.Rectangle;
import com.itextpdf.kernel.pdf.PdfReader;
import com.itextpdf.kernel.pdf.StampingProperties;
import com.itextpdf.signatures.*;
import com.itextpdf.signatures.PdfSignatureAppearance.RenderingMode;
import com.whty.framework.base.util.CheckEmptyUtil;import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.security.GeneralSecurityException;
import java.security.KeyStore;
import java.security.PrivateKey;
import java.security.cert.Certificate;/*** @author dj* @create 2023-09-05 19:00*/
public class SignUtil {public static void sign(String src, String dest, String img, KeyStore keyStore, String password, String digestAlgorithm,PdfSigner.CryptoStandard sigtype, String reason, String location) throws GeneralSecurityException, IOException {String alias = keyStore.aliases().nextElement();PrivateKey PrivateKey = (PrivateKey) keyStore.getKey(alias, password.toCharArray());Certificate[] chain = keyStore.getCertificateChain(alias);sign(src, new FileOutputStream(dest), img, chain, PrivateKey, digestAlgorithm, sigtype, reason, location);}public static void sign(String src, String dest, String img, KeyStore keyStore, String password, String digestAlgorithm,PdfSigner.CryptoStandard sigtype) throws GeneralSecurityException, IOException {String alias = keyStore.aliases().nextElement();PrivateKey PrivateKey = (PrivateKey) keyStore.getKey(alias, password.toCharArray());Certificate[] chain = keyStore.getCertificateChain(alias);sign(src, new FileOutputStream(dest), img, chain, PrivateKey, digestAlgorithm, sigtype, null, null);}public static void sign(String src, String dest, KeyStore keyStore, String password, String digestAlgorithm,PdfSigner.CryptoStandard sigtype, String reason, String location) throws GeneralSecurityException, IOException {String alias = keyStore.aliases().nextElement();PrivateKey PrivateKey = (PrivateKey) keyStore.getKey(alias, password.toCharArray());Certificate[] chain = keyStore.getCertificateChain(alias);sign(src, new FileOutputStream(dest), null, chain, PrivateKey, digestAlgorithm, sigtype, reason, location);}public static void sign(String src, String dest, KeyStore keyStore, String password, String digestAlgorithm,PdfSigner.CryptoStandard sigtype) throws GeneralSecurityException, IOException {String alias = keyStore.aliases().nextElement();PrivateKey PrivateKey = (PrivateKey) keyStore.getKey(alias, password.toCharArray());Certificate[] chain = keyStore.getCertificateChain(alias);sign(src, new FileOutputStream(dest), null, chain, PrivateKey, digestAlgorithm, sigtype, null, null);}public static void sign(String src, String dest, String img, KeyStore keyStore, String password,String reason, String location) throws GeneralSecurityException, IOException {String alias = keyStore.aliases().nextElement();PrivateKey PrivateKey = (PrivateKey) keyStore.getKey(alias, password.toCharArray());Certificate[] chain = keyStore.getCertificateChain(alias);sign(src, new FileOutputStream(dest), img, chain, PrivateKey, DigestAlgorithms.SHA1, PdfSigner.CryptoStandard.CMS, reason, location);}public static void sign(String src, OutputStream outputStream, KeyStore keyStore, String password) throws GeneralSecurityException, IOException {String alias = keyStore.aliases().nextElement();PrivateKey PrivateKey = (PrivateKey) keyStore.getKey(alias, password.toCharArray());Certificate[] chain = keyStore.getCertificateChain(alias);sign(src, outputStream, null, chain, PrivateKey, DigestAlgorithms.SHA1, PdfSigner.CryptoStandard.CMS, "岁月云", "");}public static void sign(String src, OutputStream outputStream, String img, KeyStore keyStore, String password) throws GeneralSecurityException, IOException {String alias = keyStore.aliases().nextElement();PrivateKey PrivateKey = (PrivateKey) keyStore.getKey(alias, password.toCharArray());Certificate[] chain = keyStore.getCertificateChain(alias);sign(src, outputStream, img, chain, PrivateKey, DigestAlgorithms.SHA1, PdfSigner.CryptoStandard.CMS, null, null);}public static void sign(String src, OutputStream outputStream, String img, Certificate[] chain, PrivateKey pk, String digestAlgorithm,PdfSigner.CryptoStandard sigtype, String reason, String location) throws GeneralSecurityException, IOException {PdfReader pdfReader = new PdfReader(src);sign(pdfReader,outputStream,img,chain,pk,digestAlgorithm,sigtype,reason,location);}public static void sign(PdfReader pdfReader, OutputStream outputStream, String img, Certificate[] chain, PrivateKey pk, String digestAlgorithm,PdfSigner.CryptoStandard sigtype, String reason, String location) throws GeneralSecurityException, IOException {PdfSigner signer = new PdfSigner(pdfReader,outputStream,new StampingProperties());// 获取数字签章属性对象，设定数字签章的属性PdfSignatureAppearance appearance = signer.getSignatureAppearance();appearance.setReason(reason);appearance.setLocation(location);/*** 1 三个参数依次为：设置签名的位置、页码、签名域名称，多次追加签名的时候，签名域名称不能一样*  1.1 签名的位置四个参数：印章左下角的X、Y轴坐标，印章右上角的X、Y轴坐标,* 		这个位置是相对于PDF页面的位置坐标，即该坐标距PDF当前页左下角的坐标*/Rectangle rect = new Rectangle(460, 0, 590, 90);appearance.setReuseAppearance(false).setPageRect(rect).setPageNumber(1);if(CheckEmptyUtil.isEmpty(img)) {img = SignUtil.class.getClassLoader().getResource("seal/empty.png").getPath();}ImageData imageData = ImageDataFactory.create(img);appearance.setSignatureGraphic(imageData);appearance.setRenderingMode(RenderingMode.GRAPHIC);/*** 算法主要为：RSA、DSA、ECDSA* 摘要算法,这里的itext提供了2个用于签名的接口，可以自己实现*/IExternalDigest digest = new BouncyCastleDigest();/*** 签名算法，参数依次为：证书秘钥、摘要算法名称，例如MD5 | SHA-1 | SHA-2.... 以及 提供者*/IExternalSignature   signature = new PrivateKeySignature(pk, digestAlgorithm, null);signer.signDetached(digest, signature, chain, null, null, null, 0, sigtype);}
}

旧模式，用法差不多，但是jar包的使用差异很大

package com.whty.einv.invoice.util;import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Image;
import com.itextpdf.text.Rectangle;
import com.itextpdf.text.pdf.PdfContentByte;
import com.itextpdf.text.pdf.PdfReader;
import com.itextpdf.text.pdf.PdfSignatureAppearance;
import com.itextpdf.text.pdf.PdfStamper;
import com.itextpdf.text.pdf.security.*;
import com.whty.framework.base.util.CheckEmptyUtil;
import org.apache.commons.io.FileUtils;import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.*;
import java.security.GeneralSecurityException;
import java.security.KeyStore;
import java.security.PrivateKey;
import java.security.cert.Certificate;/*** 签名工具类*/
public class SignatureUtil {/*** 签名* @param pdfReader 需要签章的pdf* @param dest 签完章的pdf文件路径* @param chain 证书链* @param img 印章图片* @param pk 签名私钥* @param digestAlgorithm 摘要算法名称，例如SHA-1* @param sigtype 数字签名格式，itext有2种* @param reason 签名的原因，显示在pdf签名属性中* @param location 签名的地点，显示在pdf签名属性中* @throws GeneralSecurityException* @throws IOException* @throws DocumentException*/public static void sign(PdfReader pdfReader, OutputStream outputStream, String img, Certificate[] chain, PrivateKey pk, String digestAlgorithm,MakeSignature.CryptoStandard sigtype, String reason, String location,InputStream sealInputStream,int[] imageLocation) throws GeneralSecurityException, IOException, DocumentException {/*** 1 参数依次为：文件名、文件输入流、文件版本号、临时文件、是否可以追加签名*  1.1 false的话，pdf文件只允许被签名一次，多次签名，最后一次有效*  1.2 true的话，pdf可以被追加签名，验签工具可以识别出每次签名之后文档是否被修改*/// Create a PDF stamperPdfStamper stamper = PdfStamper.createSignature(pdfReader, outputStream, '\0', null, false);if(imageLocation == null){imageLocation = new int[]{460, 0, 130, 90};}if(sealInputStream != null){// Load the imageBufferedImage image = ImageIO.read(sealInputStream);// Create a PDF imageImage pdfImage = Image.getInstance(image, null);// Get the content of the first pagePdfContentByte content = stamper.getOverContent(1);// Add the image to the specified location and with the specified dimensionspdfImage.setAbsolutePosition(imageLocation[0], imageLocation[1]);pdfImage.scaleAbsolute(imageLocation[2], imageLocation[3]);content.addImage(pdfImage);}// 获取数字签章属性对象，设定数字签章的属性PdfSignatureAppearance appearance = stamper.getSignatureAppearance();appearance.setReason(reason);appearance.setLocation(location);/*** 1 三个参数依次为：设置签名的位置、页码、签名域名称，多次追加签名的时候，签名域名称不能一样*  1.1 签名的位置四个参数：印章左下角的X、Y轴坐标，印章右上角的X、Y轴坐标,* 		这个位置是相对于PDF页面的位置坐标，即该坐标距PDF当前页左下角的坐标*/appearance.setVisibleSignature(new Rectangle(imageLocation[0], imageLocation[1], imageLocation[0]+imageLocation[2], imageLocation[1]+imageLocation[3]), 1, "sign");/*** 用于盖章的印章图片，引包的时候要引入itext包的image*/if(CheckEmptyUtil.isEmpty(img)) {img = SignatureUtil.class.getClassLoader().getResource("seal/empty.png").getPath();}appearance.setSignatureGraphic(Image.getInstance(img));/*** 设置认证等级，共4种，分别为：*  NOT_CERTIFIED、CERTIFIED_NO_CHANGES_ALLOWED、*  CERTIFIED_FORM_FILLING 和 CERTIFIED_FORM_FILLING_AND_ANNOTATIONS** 需要用哪一种根据业务流程自行选择*/appearance.setCertificationLevel(PdfSignatureAppearance.NOT_CERTIFIED);/*** 印章的渲染方式，同样有4种：*  DESCRIPTION、NAME_AND_DESCRIPTION,*  GRAPHIC_AND_DESCRIPTION,GRAPHIC;* 这里选择只显示印章*/appearance.setRenderingMode(PdfSignatureAppearance.RenderingMode.GRAPHIC);/*** 算法主要为：RSA、DSA、ECDSA* 摘要算法,这里的itext提供了2个用于签名的接口，可以自己实现*/ExternalDigest digest = new BouncyCastleDigest();/*** 签名算法，参数依次为：证书秘钥、摘要算法名称，例如MD5 | SHA-1 | SHA-2.... 以及 提供者*/ExternalSignature signature = new PrivateKeySignature(pk, digestAlgorithm, null);/*** 最重要的来了,调用itext签名方法完成pdf签章*/MakeSignature.signDetached(appearance, digest, signature, chain, null, null, null, 0, sigtype);}public static void sign(String src, String dest, String img, KeyStore keyStore, String password, String digestAlgorithm,MakeSignature.CryptoStandard sigtype, String reason, String location) throws GeneralSecurityException, IOException, DocumentException {String alias = keyStore.aliases().nextElement();PrivateKey PrivateKey = (PrivateKey) keyStore.getKey(alias, password.toCharArray());Certificate[] chain = keyStore.getCertificateChain(alias);sign(src, new FileOutputStream(dest), img, chain, PrivateKey, digestAlgorithm, sigtype, reason, location);}public static void sign(String src, String dest, String img, KeyStore keyStore, String password, String digestAlgorithm,MakeSignature.CryptoStandard sigtype) throws GeneralSecurityException, IOException, DocumentException {String alias = keyStore.aliases().nextElement();PrivateKey PrivateKey = (PrivateKey) keyStore.getKey(alias, password.toCharArray());Certificate[] chain = keyStore.getCertificateChain(alias);sign(src, new FileOutputStream(dest), img, chain, PrivateKey, digestAlgorithm, sigtype, null, null);}public static void sign(String src, String dest, KeyStore keyStore, String password, String digestAlgorithm,MakeSignature.CryptoStandard sigtype, String reason, String location) throws GeneralSecurityException, IOException, DocumentException {String alias = keyStore.aliases().nextElement();PrivateKey PrivateKey = (PrivateKey) keyStore.getKey(alias, password.toCharArray());Certificate[] chain = keyStore.getCertificateChain(alias);sign(src, new FileOutputStream(dest), null, chain, PrivateKey, digestAlgorithm, sigtype, reason, location);}public static void sign(String src, String dest, KeyStore keyStore, String password, String digestAlgorithm,MakeSignature.CryptoStandard sigtype) throws GeneralSecurityException, IOException, DocumentException {String alias = keyStore.aliases().nextElement();PrivateKey PrivateKey = (PrivateKey) keyStore.getKey(alias, password.toCharArray());Certificate[] chain = keyStore.getCertificateChain(alias);sign(src, new FileOutputStream(dest), null, chain, PrivateKey, digestAlgorithm, sigtype, null, null);}public static void sign(String src, String dest, KeyStore keyStore, String password) throws GeneralSecurityException, IOException, DocumentException {String alias = keyStore.aliases().nextElement();PrivateKey PrivateKey = (PrivateKey) keyStore.getKey(alias, password.toCharArray());Certificate[] chain = keyStore.getCertificateChain(alias);sign(src, new FileOutputStream(dest), null, chain, PrivateKey, DigestAlgorithms.SHA1, MakeSignature.CryptoStandard.CMS, null, null);}public static void sign(String src, OutputStream outputStream, KeyStore keyStore, String password) throws GeneralSecurityException, IOException, DocumentException {String alias = keyStore.aliases().nextElement();PrivateKey PrivateKey = (PrivateKey) keyStore.getKey(alias, password.toCharArray());Certificate[] chain = keyStore.getCertificateChain(alias);sign(src, outputStream, null, chain, PrivateKey, DigestAlgorithms.SHA1, MakeSignature.CryptoStandard.CMS, null, null);}public static void sign(String src, OutputStream outputStream, String img, KeyStore keyStore, String password) throws GeneralSecurityException, IOException, DocumentException {String alias = keyStore.aliases().nextElement();PrivateKey PrivateKey = (PrivateKey) keyStore.getKey(alias, password.toCharArray());Certificate[] chain = keyStore.getCertificateChain(alias);sign(src, outputStream, img, chain, PrivateKey, DigestAlgorithms.SHA1, MakeSignature.CryptoStandard.CMS, null, null);}public static void sign(String src, OutputStream outputStream, String img, Certificate[] chain, PrivateKey pk, String digestAlgorithm,MakeSignature.CryptoStandard sigtype, String reason, String location) throws GeneralSecurityException, IOException, DocumentException {PdfReader pdfReader = new PdfReader(src);sign(pdfReader,outputStream,img,chain,pk,digestAlgorithm,sigtype,reason,location,null,null);}public static void sign(byte[] originalPdf, OutputStream outputStream, KeyStore keyStore, String password,InputStream sealInputStream,int[] imgLocation) throws GeneralSecurityException, IOException, DocumentException {String alias = keyStore.aliases().nextElement();PrivateKey privateKey = (PrivateKey) keyStore.getKey(alias, password.toCharArray());Certificate[] chain = keyStore.getCertificateChain(alias);PdfReader pdfReader = new PdfReader(originalPdf);sign(pdfReader, outputStream, null, chain, privateKey, DigestAlgorithms.SHA1, MakeSignature.CryptoStandard.CMS, null, null,sealInputStream,imgLocation);}

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