Openssl rsautl命令

一、简介

rsautl指令能够使用RSA算法签名，验证身份，加密/解密数据

二、语法

openssl rsautl [-in file] [-out file] [-inkey file] [-passin arg] [-keyform PEM|DER|NET] [-pubin] [-certin]
[-asn1parse] [-hexdump] [-raw] [-oaep] [-ssl] [-pkcs] [-x931] [-sign] [-verify][-encrypt] [-decrypt] [-rev] 
[-engine e]

选项

-in file        input file
-out file       output file
-inkey file     input key
-keyform arg    private key format - default PEM
-pubin          input is an RSA public
-certin         input is a certificate carrying an RSA public key
-ssl            use SSL v2 padding
-raw            use no padding
-pkcs           use PKCS#1 v1.5 padding (default)
-oaep           use PKCS#1 OAEP
-sign           sign with private key
-verify         verify with public key
-encrypt        encrypt with public key
-decrypt        decrypt with private key
-hexdump        hex dump output
-engine e       use engine e, possibly a hardware device.
-passin arg    pass phrase source

三、实例

1、签名验签

openssl rsautl -sign -inkey prikey.pem -passin pass:123456 -in test.txt -out test_sign.msg
openssl rsautl -verify -inkey pubkey.pem -pubin -passin pass:123456 -in test_sign.msg

2、加密解密

openssl rsautl -encrypt -pubin -inkey pubkey.pem -in test.txt -out test_cipher.txt
openssl rsautl -decrypt -inkey prikey.pem -passin pass:123456 -in test_cipher.txt

参考：http://blog.csdn.net/as3luyuan123/article/details/16812011