Using Keys and Certificates

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.