Using Keys and Certificates
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OpenSSL
# 版本信息
$ openssl version -a
# 性能测试
$ openssl speed
PEM Basics
-----BEGIN <whatever>-----
data
-----END <whatever>----
Stores certificates or private keys.
Each line is 64 characters.
PEM is Base64-encoded DER.
PEM or Privacy Enhanced Mail is a Base64 encoded DER certificate.
DER/CER are binary encodings (cer typically omits the private key).
The first 32 characters of a PEM file are cosmetic; they don’t affect usage.