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部分JDK报java.security.InvalidKeyException: Illegal key size #5

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NotFound403 opened this issue Jan 31, 2021 · 4 comments
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部分JDK报java.security.InvalidKeyException: Illegal key size #5

NotFound403 opened this issue Jan 31, 2021 · 4 comments
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@NotFound403
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comppatibility there is a comppatibility question Further information is requested
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payment-spring-boot

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@NotFound403
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Caused by: cn.felord.payment.PayException: java.security.InvalidKeyException: Illegal key size
at cn.felord.payment.wechat.v3.SignatureProvider.decryptResponseBody(SignatureProvider.java:263) ~[payment-spring-boot-autoconfigure-1.0.4.RELEASE.jar!/:na]
at cn.felord.payment.wechat.v3.SignatureProvider.lambda$refreshCertificate$0(SignatureProvider.java:220) ~[payment-spring-boot-autoconfigure-1.0.4.RELEASE.jar!/:na]
at java.lang.Iterable.forEach(Iterable.java:75) ~[na:1.8.0_131]
@NotFound403
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对于密码，很多国家是限制出口的，因此你可能使用了受限制的JDK，尤其是Oracle的JDK。解决方案：

前往甲骨文官网下载JCE无限制权限策略文件，例如JDK8:

https://www.oracle.com/java/technologies/javase-jce8-downloads.html

下载下来后对文件进行解压发现其中有两个jar包，将其复制并覆盖你自己的%JAVA_HOME%/jre/lib/security下的local_policy.jar 和 US_export_policy.jar

注意：覆盖之前最好将原来的local_policy.jar 和 US_export_policy.jar 备份

@NotFound403
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或者更换为Open JDK 也可以突破限制

@NotFound403 NotFound403 self-assigned this Feb 2, 2021
@NotFound403 NotFound403 added the comppatibility there is a comppatibility label Feb 2, 2021
@NotFound403 NotFound403 mentioned this issue Jun 22, 2021
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@NotFound403 NotFound403 mentioned this issue Aug 23, 2021
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@NotFound403 NotFound403 added the question Further information is requested label Jun 20, 2022
@NotFound403 NotFound403 pinned this issue Feb 10, 2023
@wanghe-sudo
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jdk8 151之前需要替换jar包，151版本以后，只需要手动开启配置，找到jre路径，找到java.security文件，去除crypto.policy=unlimited注释（约826行）

@lonffreytu
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jdk8 151之前需要替换jar包，151版本以后，只需要手动开启配置，找到jre路径，找到java.security文件，去除crypto.policy=unlimited注释（约826行）

该文件在 jre\lib\security，亲测通过

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