需要使用上述两种方法来发送纯数据、加密数据、签名数据和压缩数据，或任何格式的带合作伙伴标识的包封数据 (PKCS7)。
The above two approaches are required to send plain data, encrypted data, signed data, and compressed data, or any form of enveloped data (PKCS7) with the partner's identification.
如果某人想保持少量私有信息，那么他必须使用密码、密码短语或其他基本方法对数据进行加密。
If somebody wanted to keep a bit of information private, he encrypted the data with a password, a pass phrase, or another basic method.
更好的替代方法是在数据库中存储加密密码或哈希密码。
A better alternative is to store encrypted or hashed passwords in the database.
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