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    解决在linux跑连接sql server老版本会报错的问题

    先贴链接:https://aws.amazon.com/cn/blogs/opensource/tls-1-0-1-1-changes-in-openjdk-and-amazon-corretto/ 网上搜索的大部分方法无法帮助我。 报错如下: The server selected protocol version TLS10 is not accepted by client preferences [TLS12] 在java的根目录下(我的是1.8),在jdk11会在conf下找安全性文件,在jre/lib/security下有一个java.security文件,这个文件里的配置的jdk.tls.disabledAlgorithms配置向里面会禁用掉TLS1.0版本的传输协议,这时候我们需要关闭该协议,删除TLS1.0,当然在这个文件下删除是没有任何用处的,网上的大部分帖子也都是说改这个文件,我试了是不可以的,所以使用的是如下方法,新建一个空文件,粘贴如下:

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    java 数字信封_【Java密码学】使用Bouncy Castle生成数字签名、数字信封

    importjava.io.FileInputStream;importjava.io.InputStream;importjava.security.KeyStore;importjava.security.PrivateKey;importjava.security.Provider;importjava.security.Security;importjava.security.cert.Certificate;importjava.security.cert.CertificateFactory;importjava.security.cert.X509Certificate;importjava.util.ArrayList;importjava.util.Collection;importjava.util.Iterator;importjava.util.List;importorg.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers;importorg.bouncycastle.cert.X509CertificateHolder;importorg.bouncycastle.cert.jcajce.JcaCertStore;importorg.bouncycastle.cms.CMSEnvelopedData;importorg.bouncycastle.cms.CMSEnvelopedDataGenerator;importorg.bouncycastle.cms.CMSProcessableByteArray;importorg.bouncycastle.cms.CMSSignedData;importorg.bouncycastle.cms.CMSSignedDataGenerator;importorg.bouncycastle.cms.CMSTypedData;importorg.bouncycastle.cms.RecipientInformation;importorg.bouncycastle.cms.RecipientInformationStore;importorg.bouncycastle.cms.SignerInformation;importorg.bouncycastle.cms.SignerInformationStore;importorg.bouncycastle.cms.jcajce.JcaSignerInfoGeneratorBuilder;importorg.bouncycastle.cms.jcajce.JcaSimpleSignerInfoVerifierBuilder;importorg.bouncycastle.cms.jcajce.JceCMSContentEncryptorBuilder;importorg.bouncycastle.cms.jcajce.JceKeyTransEnvelopedRecipient;importorg.bouncycastle.cms.jcajce.JceKeyTransRecipientInfoGenerator;importorg.bouncycastle.jce.provider.BouncyCastleProvider;importorg.bouncycastle.operator.ContentSigner;importorg.bouncycastle.operator.jcajce.JcaContentSignerBuilder;importorg.bouncycastle.operator.jcajce.JcaDigestCalculatorProviderBuilder;importorg.bouncycastle.util.Store;importorg.bouncycastle.util.encoders.Base64;public classMessageUtil {private String ksType = “PKCS12”;/*** 生成数字签名

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