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Merge pull request #31216 from shuaijinchao/zh/sync/administer-cluster/encrypt-data 

[zh] synchronize translate encrypt-data.md
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Kubernetes Prow Robot 2022-01-08 18:24:19 -08:00 committed by GitHub
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content/zh/docs/tasks/administer-cluster/encrypt-data.md
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@ -107,9 +107,9 @@ read that resource will fail until it is deleted or a valid decryption key is pr
Name | Encryption | Strength | Speed | Key Length | Other Considerations
-----|------------|----------|-------|------------|---------------------
`identity` | None | N/A | N/A | N/A | Resources written as-is without encryption. When set as the first provider, the resource will be decrypted as new values are written.
`aescbc` | AES-CBC with PKCS#7 padding | Strongest | Fast | 32-byte | The recommended choice for encryption at rest but may be slightly slower than `secretbox`.
`secretbox` | XSalsa20 and Poly1305 | Strong | Faster | 32-byte | A newer standard and may not be considered acceptable in environments that require high levels of review.
`aesgcm` | AES-GCM with random nonce | Must be rotated every 200k writes | Fastest | 16, 24, or 32-byte | Is not recommended for use except when an automated key rotation scheme is implemented.
`aescbc` | AES-CBC with PKCS#7 padding | Weak | Fast | 32-byte | Not recommended due to CBC's vulnerability to padding oracle attacks.
`kms` | Uses envelope encryption scheme: Data is encrypted by data encryption keys (DEKs) using AES-CBC with PKCS#7 padding, DEKs are encrypted by key encryption keys (KEKs) according to configuration in Key Management Service (KMS) | Strongest | Fast | 32-bytes | The recommended choice for using a third party tool for key management. Simplifies key rotation, with a new DEK generated for each encryption, and KEK rotation controlled by the user. [Configure the KMS provider](/docs/tasks/administer-cluster/kms-provider/)
Each provider supports multiple keys - the keys are tried in order for decryption, and if the provider
@ -119,9 +119,9 @@ is the first provider, the first key is used for encryption.
名称 | 加密类型 | 强度 | 速度 | 密钥长度 | 其它事项
-----|------------|----------|-------|------------|---------------------
`identity` | 无 | N/A | N/A | N/A | 不加密写入的资源。当设置为第一个 provider 时，资源将在新值写入时被解密。
`aescbc` | 填充 PKCS#7 的 AES-CBC | 最强 | 快 | 32字节 | 建议使用的加密项，但可能比 `secretbox` 稍微慢一些。
`secretbox` | XSalsa20 和 Poly1305 | 强 | 更快 | 32字节 | 较新的标准，在需要高度评审的环境中可能不被接受。
`aesgcm` | 带有随机数的 AES-GCM | 必须每 200k 写入一次 | 最快 | 16, 24 或者 32字节 | 建议不要使用，除非实施了自动密钥循环方案。
`aescbc` | 填充 PKCS#7 的 AES-CBC | 弱 | 快 | 32字节 | 由于 CBC 容易受到密文填塞攻击（Padding Oracle Attack），不推荐使用。
`kms` | 使用信封加密方案：数据使用带有 PKCS#7 填充的 AES-CBC 通过数据加密密钥（DEK）加密，DEK 根据 Key Management Service（KMS）中的配置通过密钥加密密钥（Key Encryption Keys，KEK）加密 | 最强 | 快 | 32字节 | 建议使用第三方工具进行密钥管理。为每个加密生成新的 DEK，并由用户控制 KEK 轮换来简化密钥轮换。[配置 KMS 提供程序](/zh/docs/tasks/administer-cluster/kms-provider/)
每个 provider 都支持多个密钥 - 在解密时会按顺序使用密钥，如果是第一个 provider，则第一个密钥用于加密。