mbedtls实现RSA签名验签(数字证书)demo

上传者: anjiyufei | 上传时间: 2025-10-09 15:39:09 | 文件大小: 640KB | 文件类型: ZIP
**mbedtls实现RSA签名验签(数字证书)demo** 在信息安全领域,数字证书是用于验证网络身份的重要工具,它基于公钥加密体系,其中RSA算法是广泛应用的一种非对称加密算法。mbedtls是一个轻量级的C语言库,提供包括TLS协议、密码学算法和X.509证书处理等功能,适用于嵌入式设备和资源有限的环境。本教程将详细介绍如何使用mbedtls库来实现RSA签名和验证过程。 我们需要理解RSA算法的基本原理。RSA是一种非对称加密算法,它由两个密钥组成:公钥和私钥。公钥用于加密数据,而私钥用于解密数据。在签名过程中,私钥用于“加密”数据(实际上是进行一种特殊形式的哈希运算),而公钥用于验证签名的有效性。 在数字证书的场景中,证书包含了拥有者的公钥和有关证书持有者的信息,这些信息通常经过证书颁发机构(CA)的签名,确保公钥和身份信息的可信度。 使用mbedtls实现RSA签名和验证的过程通常包括以下步骤: 1. **生成RSA密钥对**:我们需要创建一个RSA密钥对,包括公钥和私钥。mbedtls提供了`mbedtls_rsa_gen_key`函数来生成指定位数的密钥对。 2. **创建哈希**:对要签名的数据进行哈希计算,通常使用SHA-256等安全哈希算法。mbedtls的`mbedtls_sha256`函数可以完成这个任务。 3. **签名操作**:使用私钥对哈希值进行签名。mbedtls的`mbedtls_rsa_pkcs1_sign`函数实现了这一过程,它会将哈希值转化为一个可以用公钥验证的签名。 4. **验证签名**:接收方接收到签名和原始数据后,先对数据进行相同的哈希计算,然后使用公钥和收到的签名调用`mbedtls_rsa_pkcs1_verify`函数进行验证。 5. **证书处理**:在实际应用中,公钥通常存储在X.509数字证书中。mbedtls提供了`mbedtls_x509_crt_parse`函数来解析证书文件,提取出公钥信息。 6. **构建CMake工程**:为了编译和运行示例代码,我们需要设置CMakeLists.txt文件,将mbedtls库链接到项目中,并配置编译选项。 在提供的压缩包文件中,`main.c`应包含实现上述步骤的代码;`CMakeLists.txt`用于配置CMake构建过程;`crypto`可能是一个包含mbedtls库的文件夹;`cmake-build-debug`是CMake生成的构建目录;`.idea`是IDE的项目配置文件,与代码执行无关;`sign_verify`可能是存放签名和验证结果的文件或目录。 通过学习和实践这个mbedtls RSA签名验签的示例,开发者可以更好地理解非对称加密在数字证书中的应用,并能够在自己的项目中实现类似的功能,确保数据传输的安全性和用户身份的验证。

文件下载

资源详情

[{"title":"( 111 个子文件 640KB ) mbedtls实现RSA签名验签(数字证书)demo","children":[{"title":"objects.a <span style='color:#111;'> 311.52KB </span>","children":null,"spread":false},{"title":"CMakeDetermineCompilerABI_C.bin <span style='color:#111;'> 52.64KB </span>","children":null,"spread":false},{"title":"rsa.c <span style='color:#111;'> 85.31KB </span>","children":null,"spread":false},{"title":"bignum.c <span style='color:#111;'> 82.93KB </span>","children":null,"spread":false},{"title":"aes.c <span style='color:#111;'> 72.90KB </span>","children":null,"spread":false},{"title":"error.c <span style='color:#111;'> 46.92KB </span>","children":null,"spread":false},{"title":"pkparse.c <span style='color:#111;'> 46.44KB </span>","children":null,"spread":false},{"title":"oid.c <span style='color:#111;'> 27.09KB </span>","children":null,"spread":false},{"title":"ctr_drbg.c <span style='color:#111;'> 22.81KB </span>","children":null,"spread":false},{"title":"entropy.c <span style='color:#111;'> 21.46KB </span>","children":null,"spread":false},{"title":"pk_wrap.c <span style='color:#111;'> 21.01KB </span>","children":null,"spread":false},{"title":"CMakeCCompilerId.c <span style='color:#111;'> 20.45KB </span>","children":null,"spread":false},{"title":"pkwrite.c <span style='color:#111;'> 18.78KB </span>","children":null,"spread":false},{"title":"sha256.c <span style='color:#111;'> 18.60KB </span>","children":null,"spread":false},{"title":"pk.c <span style='color:#111;'> 16.43KB </span>","children":null,"spread":false},{"title":"rsa_internal.c <span style='color:#111;'> 15.14KB </span>","children":null,"spread":false},{"title":"pem.c <span style='color:#111;'> 15.13KB </span>","children":null,"spread":false},{"title":"md_wrap.c <span style='color:#111;'> 14.72KB </span>","children":null,"spread":false},{"title":"md.c <span style='color:#111;'> 13.57KB </span>","children":null,"spread":false},{"title":"asn1write.c <span style='color:#111;'> 12.32KB </span>","children":null,"spread":false},{"title":"sign_verify.c <span style='color:#111;'> 12.17KB </span>","children":null,"spread":false},{"title":"base64.c <span style='color:#111;'> 11.92KB </span>","children":null,"spread":false},{"title":"platform.c <span style='color:#111;'> 10.36KB </span>","children":null,"spread":false},{"title":"asn1parse.c <span style='color:#111;'> 9.99KB </span>","children":null,"spread":false},{"title":"entropy_poll.c <span style='color:#111;'> 6.80KB </span>","children":null,"spread":false},{"title":"platform_util.c <span style='color:#111;'> 5.86KB </span>","children":null,"spread":false},{"title":"main.c <span style='color:#111;'> 228B </span>","children":null,"spread":false},{"title":"mbedtls_rsa_sign_verify_test.cbp <span style='color:#111;'> 9.15KB </span>","children":null,"spread":false},{"title":"cmake.check_cache <span style='color:#111;'> 86B </span>","children":null,"spread":false},{"title":"DependInfo.cmake <span style='color:#111;'> 4.43KB </span>","children":null,"spread":false},{"title":"Makefile.cmake <span style='color:#111;'> 2.99KB </span>","children":null,"spread":false},{"title":"CMakeCCompiler.cmake <span style='color:#111;'> 2.71KB </span>","children":null,"spread":false},{"title":"cmake_clean.cmake <span style='color:#111;'> 1.78KB </span>","children":null,"spread":false},{"title":"cmake_install.cmake <span style='color:#111;'> 1.47KB </span>","children":null,"spread":false},{"title":"CMakeDirectoryInformation.cmake <span style='color:#111;'> 697B </span>","children":null,"spread":false},{"title":"CMakeSystem.cmake <span style='color:#111;'> 395B </span>","children":null,"spread":false},{"title":"CMakeRCCompiler.cmake <span style='color:#111;'> 244B </span>","children":null,"spread":false},{"title":"mbedtls_rsa_sign_verify_test.exe <span style='color:#111;'> 316.36KB </span>","children":null,"spread":false},{"title":"a.exe <span style='color:#111;'> 52.75KB </span>","children":null,"spread":false},{"title":".gitignore <span style='color:#111;'> 248B </span>","children":null,"spread":false},{"title":"rsa.h <span style='color:#111;'> 64.23KB </span>","children":null,"spread":false},{"title":"bignum.h <span style='color:#111;'> 41.38KB </span>","children":null,"spread":false},{"title":"cipher.h <span style='color:#111;'> 39.21KB </span>","children":null,"spread":false},{"title":"bn_mul.h <span style='color:#111;'> 37.77KB </span>","children":null,"spread":false},{"title":"oid.h <span style='color:#111;'> 32.25KB </span>","children":null,"spread":false},{"title":"aes.h <span style='color:#111;'> 29.63KB </span>","children":null,"spread":false},{"title":"pk.h <span style='color:#111;'> 29.48KB </span>","children":null,"spread":false},{"title":"ctr_drbg.h <span style='color:#111;'> 24.14KB </span>","children":null,"spread":false},{"title":"md.h <span style='color:#111;'> 18.57KB </span>","children":null,"spread":false},{"title":"asn1write.h <span style='color:#111;'> 14.04KB </span>","children":null,"spread":false},{"title":"platform.h <span style='color:#111;'> 13.40KB </span>","children":null,"spread":false},{"title":"asn1.h <span style='color:#111;'> 12.85KB </span>","children":null,"spread":false},{"title":"des.h <span style='color:#111;'> 12.00KB </span>","children":null,"spread":false},{"title":"sha256.h <span style='color:#111;'> 11.70KB </span>","children":null,"spread":false},{"title":"entropy.h <span style='color:#111;'> 10.54KB </span>","children":null,"spread":false},{"title":"md5.h <span style='color:#111;'> 10.21KB </span>","children":null,"spread":false},{"title":"rsa_internal.h <span style='color:#111;'> 9.69KB </span>","children":null,"spread":false},{"title":"platform_util.h <span style='color:#111;'> 8.51KB </span>","children":null,"spread":false},{"title":"pem.h <span style='color:#111;'> 6.39KB </span>","children":null,"spread":false},{"title":"threading.h <span style='color:#111;'> 5.45KB </span>","children":null,"spread":false},{"title":"pk_internal.h <span style='color:#111;'> 5.39KB </span>","children":null,"spread":false},{"title":"error.h <span style='color:#111;'> 4.90KB </span>","children":null,"spread":false},{"title":"cipher_internal.h <span style='color:#111;'> 4.64KB </span>","children":null,"spread":false},{"title":"entropy_poll.h <span style='color:#111;'> 4.13KB </span>","children":null,"spread":false},{"title":"base64.h <span style='color:#111;'> 4.12KB </span>","children":null,"spread":false},{"title":"md_internal.h <span style='color:#111;'> 3.91KB </span>","children":null,"spread":false},{"title":"config.h <span style='color:#111;'> 716B </span>","children":null,"spread":false},{"title":"sign_verify.h <span style='color:#111;'> 674B </span>","children":null,"spread":false},{"title":"mbedtls_rsa_sign_verify_test.iml <span style='color:#111;'> 98B </span>","children":null,"spread":false},{"title":"C.includecache <span style='color:#111;'> 4.25KB </span>","children":null,"spread":false},{"title":"depend.internal <span style='color:#111;'> 14.29KB </span>","children":null,"spread":false},{"title":"CMakeOutput.log <span style='color:#111;'> 33.07KB </span>","children":null,"spread":false},{"title":"build.make <span style='color:#111;'> 39.15KB </span>","children":null,"spread":false},{"title":"depend.make <span style='color:#111;'> 17.23KB </span>","children":null,"spread":false},{"title":"progress.make <span style='color:#111;'> 512B </span>","children":null,"spread":false},{"title":"flags.make <span style='color:#111;'> 215B </span>","children":null,"spread":false},{"title":"Makefile <span style='color:#111;'> 25.46KB </span>","children":null,"spread":false},{"title":"Makefile2 <span style='color:#111;'> 4.20KB </span>","children":null,"spread":false},{"title":"progress.marks <span style='color:#111;'> 4B </span>","children":null,"spread":false},{"title":"bignum.c.obj <span style='color:#111;'> 65.74KB </span>","children":null,"spread":false},{"title":"rsa.c.obj <span style='color:#111;'> 36.06KB </span>","children":null,"spread":false},{"title":"aes.c.obj <span style='color:#111;'> 21.92KB </span>","children":null,"spread":false},{"title":"pkparse.c.obj <span style='color:#111;'> 16.79KB </span>","children":null,"spread":false},{"title":"sign_verify.c.obj <span style='color:#111;'> 15.64KB </span>","children":null,"spread":false},{"title":"sha256.c.obj <span style='color:#111;'> 15.39KB </span>","children":null,"spread":false},{"title":"md.c.obj <span style='color:#111;'> 15.03KB </span>","children":null,"spread":false},{"title":"ctr_drbg.c.obj <span style='color:#111;'> 14.44KB </span>","children":null,"spread":false},{"title":"pk.c.obj <span style='color:#111;'> 12.12KB </span>","children":null,"spread":false},{"title":"oid.c.obj <span style='color:#111;'> 11.78KB </span>","children":null,"spread":false},{"title":"asn1parse.c.obj <span style='color:#111;'> 11.09KB </span>","children":null,"spread":false},{"title":"error.c.obj <span style='color:#111;'> 10.58KB </span>","children":null,"spread":false},{"title":"rsa_internal.c.obj <span style='color:#111;'> 10.39KB </span>","children":null,"spread":false},{"title":"entropy.c.obj <span style='color:#111;'> 10.30KB </span>","children":null,"spread":false},{"title":"pk_wrap.c.obj <span style='color:#111;'> 9.41KB </span>","children":null,"spread":false},{"title":"base64.c.obj <span style='color:#111;'> 7.92KB </span>","children":null,"spread":false},{"title":"md_wrap.c.obj <span style='color:#111;'> 7.81KB </span>","children":null,"spread":false},{"title":"pem.c.obj <span style='color:#111;'> 5.29KB </span>","children":null,"spread":false},{"title":"platform_util.c.obj <span style='color:#111;'> 3.16KB </span>","children":null,"spread":false},{"title":"main.c.obj <span style='color:#111;'> 2.37KB </span>","children":null,"spread":false},{"title":"entropy_poll.c.obj <span style='color:#111;'> 1.37KB </span>","children":null,"spread":false},{"title":"......","children":null,"spread":false},{"title":"<span style='color:steelblue;'>文件过多,未全部展示</span>","children":null,"spread":false}],"spread":true}]

评论信息

免责申明

【只为小站】的资源来自网友分享,仅供学习研究,请务必在下载后24小时内给予删除,不得用于其他任何用途,否则后果自负。基于互联网的特殊性,【只为小站】 无法对用户传输的作品、信息、内容的权属或合法性、合规性、真实性、科学性、完整权、有效性等进行实质审查;无论 【只为小站】 经营者是否已进行审查,用户均应自行承担因其传输的作品、信息、内容而可能或已经产生的侵权或权属纠纷等法律责任。
本站所有资源不代表本站的观点或立场,基于网友分享,根据中国法律《信息网络传播权保护条例》第二十二条之规定,若资源存在侵权或相关问题请联系本站客服人员,zhiweidada#qq.com,请把#换成@,本站将给予最大的支持与配合,做到及时反馈和处理。关于更多版权及免责申明参见 版权及免责申明