一、简介

Rsa命令用于处理RSA密钥、格式转换和打印信息

 

二、语法

openssl rsa [-inform PEM|NET|DER] [-outform PEM|NET|DER] [-in filename] [-passin arg] [-out filename] [-passout arg] [-sgckey] [-text] [-noout] [-modulus] [-check] [-pubin] [-pubout] [-engine id] [-des] [-des3] [-idea]

选项

-inform arg     input format - one of DER NET PEM -outform arg    output format - one of DER NET PEM -in arg         input file -sgckey         Use IIS SGC key format -passin arg     input file pass phrase source -out arg        output file -passout arg    output file pass phrase source -des            encrypt PEM output with cbc des -des3           encrypt PEM output with ede cbc des using 168 bit key -idea           encrypt PEM output with cbc idea -seed           encrypt PEM output with cbc seed -aes128, -aes192, -aes256                 encrypt PEM output with cbc aes -camellia128, -camellia192, -camellia256                 encrypt PEM output with cbc camellia -text           print the key in text -noout          don't print key out -modulus        print the RSA key modulus -check          verify key consistency -pubin          expect a public key in input file -pubout         output a public key -engine e       use engine e, possibly a hardware device.

-RSAPublicKey_out

 

三、实例

1、pem转换为der

openssl rsa -in prikey.pem -outform der -out prikey.der

2、从私钥提取公钥

openssl rsa -in prikey.pem -out pubkey.pem -pubout

3、查看公钥信息

openssl rsa -pubin -in pubkey.pem -text

4、查看私钥信息

openssl rsa -in prikey.pem -passin pass:"123456" -text

5、从证书中提取私钥

openssl rsa -in server.pem -out serverprikey.pem

 

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