The encryption guarantees the data confidentiality on the topic, because only the service provider owning the right private key can perform decryption correctly and, thus, understand the data.

加密可以保证有关某个主题的数据机密性，原因是只有拥有正确私钥的服务提供者才能正确执行解密，因此也能读懂该数据。

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The most expensive operations in terms of performance are usually the serialization and deserialization of the data and return values, and the encryption and decryption of the request and response.

从性能而言，开销最大的操作通常是数据和返回值的序列化和反序列化以及请求和响应的加密与解密。

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Make sure the contents stay secure after decryption because encrypted messages normally tend to contain sensitive data.

请确保解密后内容的安全，因为在通常情况下，加密消息中会包含一些敏感数据。

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And the PGP bug arises from the mistake that PGP originally made in not ensuring that all the additional decryption keys in the data-recovery field have to be signed to prevent the tampering.

CNN: Technology - Security flaw discovered in Network Associates PGP software

If these card numbers were in fact stolen from the Playstation Network, it may be that the encryption Sony says it used was weak, badly implemented, or that the decryption key was included in the stolen data.

FORBES: Update: Sony Encrypted Playstation Users' Credit Cards, But Researchers Spot Stolen Cards Online