自己颁发证书

㈠ CA机构颁发的证书和自己签发的证书，安全性怎么样

有很大的区别，比如有一些网站使用自签名的SSL证书，或者干脆不使用，容易导致网站的用户信息泄露，支付交易系统被植入木马，建议如果网站涉及到金 融、商城、基金等，使用CA机构颁发的证书才能保证数据的安全，如天威诚信的，该CA机构是国内第 一批工信部批准的电子认证机构之一，也与知 名SSL证书品牌Digicert在中国有战略合作，其次旗下国产自主品牌vTrus SSL证书，是目前国内SSL证书中挺靠谱的，支持2048位RSA算法/国密标准SM2算法，覆盖单域名、多域名、通配符、多域名通配符等多种型号，全方位满足用户需求，而且支持所有主流操作系统及软件库。

㈡ 自签名证书和私有CA签名的证书的区别 创建

自签名证书是由创建它的人签署的证书，而不是由受信任的证书机构签发专的证书。自签名证书普遍存属在严重的安全漏洞，极易受到攻击，而且通常不受浏览器信任。因此，不建议大家使用自签名证书，以免造成巨大的安全隐患和安全风险，特别是重要的网银系统、网上证券系统和电子商务系统。
使用自签名证书两个主要的弊端：
1）访问者的连接可能会被劫持，从而攻击者便能查看所有发送的数据（因此违背了加密连接的目的）
2）证书不能向受信任的证书那样进行撤销。

㈢ 签名证书与自签名证书的区别

签名证书：由权威颁发机构颁发给服务器或者个人用于证明自己身份的东西，默认客户端都是信任的。主要目的是用来加密和保证数据的完整性和不可抵赖性

自签名证书：由服务器自己颁发给自己，用于证明自己身份的东西，非权威颁发机构发布，默认客户端都是不信任的，主要目的是用来加密和保证数据的完整性和不可抵赖性,与签名证书相同.

详细具体解释见下面英文。
When you're building an ecommerce site one of the first things you'll need to set up is a security certificate so that your server data will be secure. When you set this up, you have the option of creating a self-signed cerficate or creating a certificate approved by a certificate authority.
Similarities Between Signed and Self-Signed Certificates
Whether you get your certificate signed by a certificate authority or sign it yourself, there is one thing that is exactly the same on both:
Both certificates will generate a site that cannot be read by third-parties. The data sent over an https connection or SSL, will be encrypted regardless of whether the certificate is signed or self-signed.
In other words, both types of certificates will encrypt the data to create a secure website.
Then Why Pay a Certificate Authority?
A certificate authority tells your customers that this server information has been verified by a trusted source. The most commonly used Certificate Authority is Verisign. Depending upon which CA is used, the domain is verified and a certificate is issued. Verisign and other more trusted CAs will verify the existence of the business in question and the ownership of the domain to provide a bit more security that the site in question is legitimate.
The problem with using a self-signed certificate is that nearly every Web browser checks that an https connection is signed by a recognized CA. If the connection is self-signed, this will be flagged as potentially risky and error messages will pop up encouraging your customers to not trust the site.
When Can You Use a Self-Signed Certificate?
Since they provide the same protection, you can use a self-signed cerificate anywhere you would use a signed certificate. But some places work better than others.
Self-signed certificates are great for testing servers. If you're creating a website that you need to test over an https connection, you don't have to pay for a signed certificate for that testing site. You just need to tell your testers that their browser may pop warning messages.
You can also use self-signed certificates for situations that require privacy, but people might not be as concerned about. For example:
Username and password forms
Collecting personal (non-financial) information
On forms where the only users are people who know and trust you
What it comes down to is trust. When you use a self-signed certificate, you are saying to your customers "trust me - I am who I say I am." When you use a certificate signed by a CA, you are saying, "Trust me - Verisign agrees I am who I say I am."
If You're Doing Ecommerce You Need a Signed Certificate
While it is possible your customers will forgive you a self-signed certificate if all they use it for is to login to your website. But if you're asking them to input their credit card or Paypal information, then you really need a signed certificate. Most people trust the signed certificates and won't do business over an HTTPS server without one. So if you're trying to sell something on your website, invest in that certificate. It's just a cost of doing business.

㈣ CA证书、自颁发证书、自签证书是什么意思

你好！
CA证书
CA证书就是电子商务认证授权机构，也称为电子商务认证中心，是负责发放和管理数字内证书的权威机容构，并作为电子商务交易中受信任的第三方，承担公钥体系中公钥的合法性检验的责任。
证书的内容包括：电子签证机关的信息、公钥用户信息、公钥、权威机构的签字和有效期等等。目前，证书的格式和验证方法普遍遵循X.509 国际标准。
自颁发证书
由服务器自己颁发给自己，用于证明自己身份的东西，非权威颁发机构发布，默认客户端都是不信任的，在如下情形中，一张证书是自颁发证书而不是自签证书：CA在进行密钥更替时，可能会存在两个密钥对（新密钥对和旧密钥对），可能会存在用新私钥签发旧公钥或用旧私钥签发新公钥的情形，如此形成的证书是自颁发证书，却不是自签证书。

自签证书
自签证书是一种由签名实体发布给自身的证书,即发布者和证书主体相同.

㈤ 荣誉证书谁都能颁发吗

能，不过不被外界认可

㈥ 自己签发的证书与根内置的第三方机构（如天威诚信）颁发的证书有什么不同存在什么风险

国内有些网站采用自签名的SSL网站安全证书(certificate ssl）提供公众服务，却并不了解其中蕴藏着极大的安全风险。
SSL网站安全证书的两个关键功能，除了广为所知的加密通道外，网站身份识别的作用在钓鱼网站泛滥时尤为重要。CA机构需要极其严格的审核过程，才能把根植入浏览器内。通过根内置的证书才能在对用户透明的前提下完成对服务其身份的认证。
自签名的证书由于需要客户端下载根证书才能完成SSL网站安全证书的验证过程，而把对根证书真伪的判断强加给对此毫不知情的用户，显然存在极大的风险。因为，钓鱼网站可以伪造自签名的SSL网站安全证书坑用户。
天威诚信证书智能管理系统简单易用的自动化部署功能，支持一键安装SSL/TLS证书。傻瓜式安装，自动优化，自动检测。

㈦ 颁发什么证书

大学毕业后，只要符合条件，就可以拿大学毕业证书和学士学位证书（本科的），当然，专业证书也多，如：计算机等级证书、普通话等级证书、英语等级证书等

㈧ 自己签发的证书与根内置的第三方机构颁发的证书有什么不同存在什么风险

首先，自己生成的ssl证书不受浏览器信任，而且功能上会比付费的ssl证书差；

其次，自己生成的ssl证书的证书颁发者是自己，这样的证书为根证书；而购买的证书由CA机构颁发的证书，具有真实性校验。

建议您去天威诚信选择一款适合自己的SSL证书。目前，天威诚信公司是中国唯 一一家由DigiCert/Symantec直接授权且由中国工信部批准的CA认证机构，拥有最高的行业准入标准。同时，天威诚信证书智能管理系统可集成主流国际CA，根据不同需求自动进行产品选型，系统自动生成CSR，一键提交订单，订单签发自动下载。

㈨ 半永久学完了会颁发证书吗是国家统一的证书还是各个学校自己颁发的不同的证书

一般不要钱的都是学院发的，想要国家统一的证书就要另外交钱了

㈩ 个人数字证书的颁发过程

过程一般为：用户首先产生自己的密钥对，并将公共密钥及部分个人身份信息内传送给认证中心容。认证中心在核实身份后，将执行一些必要的步骤，以确信请求确实由用户发送而来，然后，认证中心将发给用户一个数字证书，该证书内包含用户的个人信息和他的公钥信息，同时还附有认证中心的签名信息。用户就可以使用自己的数字证书进行相关的各种活动。数字证书由独立的证书发行机构发布。数字证书各不相同，每种证书可提供不同级别的可信度。可以从证书发行机构获得您自己的数字证书。