【Contents】 Java/src/bwq/SymmetricEncription: DES/3DES/AES encryption and decryption Java/src/bwq/Digest: Summary Java/src/bwq/HMAC: MAC with key Practice 1A: DES/AES encryption and decryption, Digest/HMAC calculation, The functions implemented by the jdk and bouncycastle libraries are interactively verified. The encryption result is output in two modes: hexadecimal and Base64. Use some of the classes and helper methods provided in common-codec 【Contents】 Java/src/bwq/BlobStore: XML is parsed by dom4j Practice 1B: Implementing the Java version of EncryptedBlobStore (http://git.koal.com/training/cplusplus/wikis/practice-EncryptedBlobStore) Additional requirement 1: Unit testing with junit Additional requirement 2: Support at least XML and Sqlite storage modes Additional requirement 3: List the knowledge points required for the task before development, and estimate the amount of code and workload required to complete the entire task. Additional Requirement 4: Perform a simple design of this task prior to development, such as database fields, XML format, possible classes, and relationships between classes Note: Requirements 1 and 2 are certified by the implementation code, and requirements 3 and 4 require clear work results in the wiki of the implementer's repository. 【Contents】 Java/src/bwq/RSATool: BC implements P7 signature/checking/encryption/decryption [wiki] http://git.koal.com/baowenqiang/KoalTrainingProject/wikis/%E5%AE%9E%E8%B7%B52-PKCS%237%E7%AD%BE%E5%90%8D/%E9%AA% 8C%E7%AD%BE/%E5%AE%9E%E8%B7%B52-PKCS%237%E7%AD%BE%E5%90%8D%E9%AA%8C%E7%AD%BE%E5 %8A%A0%E8%A7%A3%E5%AF%86%E5%B7%A5%E5%85%B7%E5%BC%80%E5%8F%91 Practice 2: PKCS #7 signature / check, PKCS #7 digital envelope encryption / decryption (multiple) Specific requirements Implement a console style JAVA command line program. Implement the following command: -s: signature -v: verify -e: parse and display certificate extensions -f: PFX certificate or CER certificate for operation -i: specify input file -o: specify the output file The signature/decryption certificate is my PFX certificate, and I am using my CER certificate for verification/encryption. 【目录】 java/src/bwq/SymmetricEncription: DES/3DES/AES加密解密 java/src/bwq/Digest: 摘要 java/src/bwq/HMAC: 带密钥的MAC 实践1A：DES/AES加解密，Digest/HMAC计算, 采用jdk和bouncycastle库实现的功能要交互验证 将加密结果采用16进制数和Base64字符串两种模式进行输出 使用common-codec中提供的一些类和辅助方法 【目录】 java/src/bwq/BlobStore：XML采用dom4j解析 实践1B：实现Java版本的EncryptedBlobStore(http://git.koal.com/training/cplusplus/wikis/practice-EncryptedBlobStore) 附加要求1：使用junit进行单元测试 附加要求2：至少支持XML和Sqlite两种存储模式 附加要求3：在开发前列出任务所需的知识点，并对完成整个任务需要代码量和工作量进行预估 附加要求4：在开发之前进行对本任务进行简单的设计，比如数据库的字段、XML的格式，可能的类及类之间的关系 注：其中要求1、2由实现的代码证明，要求3和4需要在实现者仓库的wiki中有明确的工作成果 【目录】 java/src/bwq/RSATool：BC实现P7签名/验签/加密/解密 【wiki】 http://git.koal.com/baowenqiang/KoalTrainingProject/wikis/%E5%AE%9E%E8%B7%B52-PKCS%237%E7%AD%BE%E5%90%8D/%E9%AA%8C%E7%AD%BE/%E5%AE%9E%E8%B7%B52-PKCS%237%E7%AD%BE%E5%90%8D%E9%AA%8C%E7%AD%BE%E5%8A%A0%E8%A7%A3%E5%AF%86%E5%B7%A5%E5%85%B7%E5%BC%80%E5%8F%91 实践2：PKCS#7签名/验签，PKCS#7数字信封加密/解密（多人） 具体要求 实现一个console风格的JAVA命令行程序。 实现以下命令: -s: 签名 -v: 验证 -e: 解析并展示证书扩展项 -f: 用于操作的PFX证书或CER证书 -i: 指定输入文件 -o: 指定输出文件 签名/解密证书为本人的PFX证书，验证/加密用本人的CER证书。