An asymmetric algorithm USES a different key for encrypting or decrypting the message; one of the keys must be kept secret, and the other key is usually made public.

非对称算法使用不同的密钥对消息进行加密或解密；其中一个秘钥必须是秘密的，而另一个密钥通常是公开的。

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GnuPG allows encrypting and signing your data and communication, and features a versatile key-management system and access modules for all kinds of public key directories.

GnuPG支持数据和通信的加密和签名，且以一个多功能的密钥管理系统和各种公钥目录的访问模块为特色。

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To encrypt file data, an encryption key password must be selected, which Tivoli Storage Manager uses to generate the encryption key for encrypting and decrypting the file data.

为加密文件数据，必须选择一个加密密钥口令，Tivoli Storage Manager 使用它来生成加密密钥，以加密和解密文件数据。

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For example, encrypting data with the private key creates, a file that can be decrypted by anyone with the public key but that could only have been made by the private key holder.

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