一、简介
dsaparam指令用来生成和操作dsa参数
二、语法
openssl dsaparam [-inform DER|PEM] [-outform DER|PEM] [-in filename ] [-out filename] [-noout] [-text] [-C] [-rand file(s)] [-genkey] [-engine id] [number] [-timebomb n]
选项
-inform arg input format - DER or PEM
-outform arg output format - DER or PEM
-in arg input file
-out arg output file
-text print as text
-C Output C code
-noout no output
-genkey generate a DSA key
-rand files to use for random number input
-engine e use engine e, possibly a hardware device.
number number of bits to use for generating private key
三、实例
1、生成DSA密钥
openssl dsaparam -genkey 512 -out dsaprikey.pem
2、查看DSA密钥信息
openssl dsaparam -in dsaprikey.pem –text