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pem格式文件是什么?

2024-11-29 19:14:32  阅读:1  来源: 互联网

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PEM(Privacy Enhanced Mail)是一种文件格式,最初设计用于电子邮件的加密和安全传输。尽管它的名称中包含了“邮件”,但 PEM 格式现在广泛用于存储各种类型的加密数据,特别是与 SSL/TLS 证书和密钥相关的数据。

主要特点

  1. Base64 编码:PEM 文件中的数据是经过 Base64 编码的二进制数据。Base64 编码将二进制数据转换为 ASCII 字符,使其适合在文本文件中存储和传输。

  2. 边界标记:PEM 文件通常包含边界标记,这些标记定义了文件内容的类型。常见的边界标记包括:

    • -----BEGIN CERTIFICATE----- 和 -----END CERTIFICATE-----:用于 X.509 证书。
    • -----BEGIN PRIVATE KEY----- 和 -----END PRIVATE KEY-----:用于私钥。
    • -----BEGIN PUBLIC KEY----- 和 -----END PUBLIC KEY-----:用于公钥。
    • -----BEGIN RSA PRIVATE KEY----- 和 -----END RSA PRIVATE KEY-----:用于 RSA 私钥。

示例

以下是一些 PEM 文件的示例:

X.509 证书

-----BEGIN CERTIFICATE-----
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