Opensslgenrsa命令

  • Z时代
  • 2024-01-10
  • 分类：综合

编程

一、简介

生成RSA私有密钥

二、语法

openssl  genrsa [-out filename] [-passout arg] [-f4] [-3] [-rand file(s)] [-engine id] [numbits] [-des] [-des3] [-idea]

选项

usage: genrsa [args] [numbits]
-des            encrypt the generated key with DES in cbc mode
-des3           encrypt the generated key with DES in ede cbc mode (168 bit key)
-idea           encrypt the generated key with IDEA in cbc mode
-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
-out file       output the key to "file
 -passout arg    output file pass phrase source
-f4             use F4 (0x10001) for the E value
-3              use 3for the E value
-engine e       use engine e, possibly a hardware device.
-rand file:file:...
                 load the file (or the files in the directory) into
                 the random number generator

 

三、实例

1、生成1024位rsa私钥，采用des算法加密

openssl genrsa -des -passout pass:"1234546" -out prikey.pem 1024

 

2、根据私钥生成公钥

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

3、公钥加密

openssl rsautl -encrypt -pubin -inkey pubkey.pem -in File.txt -out encryptedFile.txt

4、私钥解密

openssl rsautl -decrypt -in encryptedFile.txt -inkey prikey.pem -out source.txt && cat source.txt

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