我清楚地看到签署一份文件的过程。 您需要一名女律师协会出具的证明。 你们有公共和私人钥匙。 随同私人签署并公开发表你签署的文件。 当你签署文件时,文件过程是数字体,然后产生散射,随后,该散射线的私人钥匙被加密。 最后,我需要在文件上添加(目录)。
现在,为了开放这份文件,我需要将加密法与文件分开。 而且,我需要公用钥匙来核实该文件的有效性。 我非常清楚这一点。
因此,问题是......。 人民从哪里获得公共钥匙? 我如何检查谁签署该文件?
Do I need to append my certificate to the document that I want to sing?? If It s true. Is that not insecur??? give my certificate to everyone??
感谢
该文件没有“固定”。 各种数据签署标准(PKCS#7,CAdES, 通用数据,XML的XMLDSig,PDF文件规格)描述了将签字数据纳入产出档案的不同方法。 所有这些形式使你能够把公用钥匙(通常为X.509证书)与核查数据结合起来。 核查的目标也是检查关键本身是否有效。 或者,用户可能应当知道公共钥匙。
你们要求的是公私营钥匙加密系统<>。 在RSA(一个特别的此类系统)中,“公共”和“私人”钥匙实际上只是两个数字,是较大数目的主要因素。 由于模块化工程如何(如果不解释数学),结果如下:
这两条方法都可行。 现在,在创造奶牛后,你会保持其中之一。 这是“私人”的。 另一方面,你增加了一些身份信息。 在X.509(一种特殊证明格式)的情况下,你添加“共同名称”和一些辅助信息,如设定日期。 这在证书的“公开”部分中增加。 证书的这个半部分,即公共钥匙,是你分发的。
在签署文件时,分发方法通常由你随附公用钥匙。 “签署文件”由X.509证书“通名”领域回答。 这将研究“cn=Joe Blow, o=Widgets Inc, l=Washington, s=DC, c=US”。 您向每个人提供“证书”——调整公共部分。 让人民做的就是:
不要让人们伪造信息,让他们看上去。
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