[ssl certification, certificate] the difference and connection between keytool genkey and genkeypair

1. JDK 1.4 and 1.5

Use keytool -genkey to generate一对密钥

2. JDK 1.6

-export renamed to -exportcert
-genkey renamed to -genkeypair

But at the same time, it is forward compatible and supports the original command parameters.

2.1 usage of keytool

Note: The new one here is -genseckey is to generate a symmetric key, which is different from the old key pair command genkey

2.2 Create a certificate

To create a certificate is mainly to use "-genkeypair", the available parameters of this command are as follows:
　　
For more see ssl certification, certificate]SSL two-way authentication java implementation, keytool to create a certificate

reference

Several common commands of keytool