SSL握手异常：“算法约束检查失败：MD5withRSA”

Question

我试图安装Oracle Entitlements服务器客户端。当我打电话

config.cmd -smConfigId Sample-SM -prpFileName C:\oracle\product\11.1.2\as_1\oessm\SMConfigTool\smconfig.java.controlled.prp

我有这个异常：

    javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path validation failed: java.security.cert.CertPathValidatorException: Algorithm constraints check failed: MD5withRSA
        at sun.security.ssl.Alerts.getSSLException(Alerts.java:192)
        at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1884)
        at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:276)
        at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:270)
        at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1341)
        at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:153)
        at sun.security.ssl.Handshaker.processLoop(Handshaker.java:868)
        at sun.security.ssl.Handshaker.process_record(Handshaker.java:804)
        at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1016)
        at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1312)
        at sun.security.ssl.SSLSocketImpl.writeRecord(SSLSocketImpl.java:702)
        at sun.security.ssl.AppOutputStream.write(AppOutputStream.java:122)
        at java.io.OutputStream.write(OutputStream.java:75)
        at oracle.security.oes.enroll.EnrollmentClient.writeToSocket(EnrollmentClient.java:330)
        at oracle.security.oes.enroll.EnrollmentClient.enroll(EnrollmentClient.java:161)
        at oracle.security.oes.enroll.EnrollmentClient.main(EnrollmentClient.java:478)
        at oracle.security.oes.tools.EnrollmentTool.doEnroll(EnrollmentTool.java:103)
        at oracle.security.oes.tools.SMConfigTool.doEnrollment(SMConfigTool.java:1192)
        at oracle.security.oes.tools.SMConfigTool.run(SMConfigTool.java:617)
        at oracle.security.oes.tools.SMConfigTool.main(SMConfigTool.java:546)
    Caused by: sun.security.validator.ValidatorException: PKIX path validation failed: java.security.cert.CertPathValidatorException: Algorithm constraints check failed: MD5withRSA
        at sun.security.validator.PKIXValidator.doValidate(PKIXValidator.java:350)
        at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:260)
        at sun.security.validator.Validator.validate(Validator.java:260)
        at sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:326)
        at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:231)
        at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:126)
        at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1323)
        ... 15 more
    Caused by: java.security.cert.CertPathValidatorException: Algorithm constraints check failed: MD5withRSA
        at sun.security.provider.certpath.PKIXMasterCertPathValidator.validate(PKIXMasterCertPathValidator.java:159)
        at sun.security.provider.certpath.PKIXCertPathValidator.doValidate(PKIXCertPathValidator.java:351)
        at sun.security.provider.certpath.PKIXCertPathValidator.engineValidate(PKIXCertPathValidator.java:191)
        at java.security.cert.CertPathValidator.validate(CertPathValidator.java:279)
        at sun.security.validator.PKIXValidator.doValidate(PKIXValidator.java:345)
        ... 21 more
sun.security.validator.ValidatorException: PKIX path validation failed: java.security.cert.CertPathValidatorException: Algorithm constraints check failed: MD5withRSA

你能帮我找到原因吗？

Answer 1

键控器”键控器”)在评论中给出了答案的方向。

问题出在密钥的长度上。简而言之：“从7u40开始，限制使用长度小于1024位的RSA密钥的x.509证书。”

因此，解决此问题的正确方法是使用密钥长度至少为2048位的证书。