OpenPGP 是基于 PGP 公钥算法的非私有协议,用于加密电子邮件。它定义了加密信息、签名、私钥的标准格式,和交换公钥的证书。
公钥密码算法是包括两个密钥:一个是 公钥,您可以把它给任何交换信息的人,另一个是 私钥,必须要安全保管好。
To create OpenPGP keys:
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Choose
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Select PGP Key and click Continue
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Enter your full name (first - last), your e-mail address and any additional information.
You can also specify advanced options for the key: see below.
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Click Create to create the new key pair.
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The Passphrase for New PGP Key dialog will open.
Enter the passphrase twice for your new key.
当选择一个密码短语时,用几个简单的习惯语来生成一个强密码。密码和密码短语的主要区别在于,密码短语里可以使用空格。
展开 高级密钥选项,可以为密钥指定下面的选项:
- Encryption Type
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这一项指定生成密钥的加密算法。
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DSA 算法
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这是推荐的选项,可以根据需要进行加密、解密、签名和验证。
- DSA
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只允许签名。
- RSA
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只允许签名。
- Key Strength (bits)
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这是密钥的位数,位数越长将会越安全,使用一个强的密码短语。当然,用一个长的密钥将会使操作花费更多的时间,合适的值在 1024 - 4096 之间,推荐至少2048位。
- Expiration Date
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This is the date at which the key will cease to be usable for
performing encryption or signing operations. 6 months is a reasonable time
to set it to. You will have to either change the
expiration date or generate a new key or subkey after this amount
of time passes.
Sign your new key with your old one before it expires
to preserve your trust status.
关于
Copyright
- Copyright © 2005, 2006, 2007, 2008, 2009 Jacob Perkins and Adam Schreiber
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distributed with this manual.
本手册是在 GFDL 许可之下分发的 GNOME 手册集合的一部分。如果想要单独分发此手册,可以在手册中添加该许可证的一份副本然后分发,如该许可证的第 6 部分所述。
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DOCUMENT AND MODIFIED VERSIONS OF THE DOCUMENT ARE PROVIDED
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