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Home Backend Development PHP Tutorial 什么是签名?服务器和APP之间的API接口和数据怎么保证安全?

什么是签名?服务器和APP之间的API接口和数据怎么保证安全?

Jun 06, 2016 pm 08:30 PM
api java php encryption digital signature

我听过一些签名和对称加密,但又不知道理解对么,你们一般服务器和APP之间怎么做的签名和加密,还有到底怎样才叫签名啊?先谢大神了。

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我听过一些签名和对称加密,但又不知道理解对么,你们一般服务器和APP之间怎么做的签名和加密,还有到底怎样才叫签名啊?先谢大神了。

access token是一种方式,早期简单点的有appid,appkey方式,复杂一点的可以使用RSA加密

楼主的问题应该是怎么进行加密通讯防止API外部调用吧,给你一个我的方案
服务器端与客户端各自会存储一个TOKEN,这个TOKEN我们为了防止反编译是用C语言来写的一个文件并做了加壳和混淆处理。
在客户端访问服务器API任何一个接口的时候,客户端需要带上一个特殊字段,这个字段就是签名signature,签名的生成方式为:
访问的接口名+时间戳+加密TOKEN 进行整体MD5,并且客户端将本地的时间戳作为明文参数提交到服务器
服务器首先会验证这两个参数:验证时间戳,如果时间误差与服务器超过正负一分钟,服务器会拒绝访问(防止被抓包重复请求服务器,正负一分钟是防止时间误差,参数可调整),
然后服务器会根据请求的API地址和提交过来的时间戳再加上本地存储的token按照MD5重新生成一个签名,并比对签名,签名一致才会通过服务器的验证,进入到下一步的API逻辑

服务器和APP直接大部分通过接口调用,比如 用户列表。/user/list/
post 到/user/list/里面有加密的一个token 这个是验证你是不是一个合法的访问者。而且现在很多开发平台比如微信。

什么是签名?服务器和APP之间的API接口和数据怎么保证安全?
这个就是 一个签名合法验证的一个例子。他们通过一些加密的机制和token 进行二次加密。然后获得合法的验证。
你可以加群:231566327 进行深入聊下。

签名和对称加密呢? 一般,签名用的是非对称加密的算法,比如你们公司有两个系统(A,B),那这两个系统就是可以互相信任的,但你又不希望从A登录到B需要输入用户名密码(因为这样会有泄漏用户阿),然后你就可以配置一个非对称加密的签名方式。比如在A保存非对称加密算法的私钥,B保存对应的公钥。用A里的私钥随便加密一点东西传到B,B就可以通过公钥证明A的身份,的确是来自A了。
非对称加密就更不用说了///

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