Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

【企业微信】修复 sun.security.util 在高版本 java 中无法访问的问题，改为通过 bouncycastle 库解析私钥 #3216

Merged
merged 1 commit into from
Jan 12, 2024
Merged

【企业微信】修复 sun.security.util 在高版本 java 中无法访问的问题，改为通过 bouncycastle 库解析私钥 #3216

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
5 changes: 5 additions & 0 deletions weixin-java-cp/pom.xml
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -81,6 +81,11 @@
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
<dependency>
<groupId>org.bouncycastle</groupId>
<artifactId>bcprov-jdk18on</artifactId>
<version>1.77</version>
</dependency>

<dependency>
<groupId>org.assertj</groupId>
Expand Down
20 changes: 13 additions & 7 deletions weixin-java-cp/src/main/java/me/chanjar/weixin/cp/util/crypto/WxCpCryptUtil.java
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -4,8 +4,7 @@
import me.chanjar.weixin.common.util.crypto.WxCryptUtil;
import me.chanjar.weixin.cp.config.WxCpConfigStorage;
import org.apache.commons.lang3.StringUtils;
import sun.security.util.DerInputStream;
import sun.security.util.DerValue;
import org.bouncycastle.asn1.pkcs.RSAPrivateKey;

import javax.crypto.Cipher;
import java.nio.charset.StandardCharsets;
Expand Down Expand Up @@ -105,11 +104,18 @@ public static String decryptPriKeyByPKCS1(String encryptRandomKey, String msgAud
.replace(" ", "");

byte[] keyBytes = Base64.getDecoder().decode(privateKey);
DerValue[] seq = new DerInputStream(keyBytes).getSequence(0);
RSAPrivateCrtKeySpec keySpec = new RSAPrivateCrtKeySpec(seq[1].getBigInteger(), seq[2].getBigInteger(),
seq[3].getBigInteger(), seq[4].getBigInteger(),
seq[5].getBigInteger(), seq[6].getBigInteger(),
seq[7].getBigInteger(), seq[8].getBigInteger());
// Java 8 以后 sun.security.util.DerInputStream 和 sun.security.util.DerValue 无法使用
// 因此改为通过 org.bouncycastle:bcprov-jdk18on 来完成 ASN1 编码数据解析
final RSAPrivateKey key = RSAPrivateKey.getInstance(keyBytes);
final RSAPrivateCrtKeySpec keySpec = new RSAPrivateCrtKeySpec(
key.getModulus(),
key.getPublicExponent(),
key.getPrivateExponent(),
key.getPrime1(),
key.getPrime2(),
key.getExponent1(),
key.getExponent2(),
key.getCoefficient());

PrivateKey priKey = KeyFactory.getInstance("RSA").generatePrivate(keySpec);
Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");
Expand Down