使用ruby和openssl加密和解密示例

Question

我正在嘗試做一個示例應用程序，用於測試目的vs其他人的開發，並且想要在屏幕上打印加密的字符串，並將其放回到解密機制。 ...我似乎沒有找到辦法做到這一點...我已經嘗試過base64並解包，並覺得這是方式，但我沒有到達那裏。

require 'openssl' 
require 'base64' 

def ask(prompt) 
    loop do 
     print prompt, ' ' 
     $stdout.flush 
     s = gets 
     return s.chomp 
    end  
end 

def aes(m,k,t) 
(aes = OpenSSL::Cipher::Cipher.new('aes-256-cbc').send(m)).key = Digest::SHA256.digest(k) 
aes.update(t) << aes.final 
end 

def encrypt(key, text) 
aes(:encrypt, key, text) 
end 

def decrypt(key, text) 
aes(:decrypt, key, text) 
end 


def my_decrypt 
@crypted = ask("Crypted data: ") 
decrypted = decrypt("12345678911131511192123252729412",@crypted) 
print decrypted 
end 

def my_encrypt 
@decrypted = ask("Data to encrypt: ") 
crypted = encrypt("12345678911131511192123252729412",@decrypted) 
print crypted 
end 


option=ask("Option 1 - Encrypt, 2 decrypt") 
case option 
    when "1" then my_encrypt 
    when "2" then my_decrypt 
    else print "Option not valid" 
end 

任何人都可以拯救？

謝謝

Answer 1

有的一拼後，我終於得到它。我只需要在二進制轉換爲十六進制，然後再返回到二進制...

有兩點需要注意：二進制轉換到十六進制，你可以使用String.unpack，這將返回一個數組。 要轉換十六進制二進制，首先需要建立它作爲數組[「anystringhere」]，並且然後使用Array.pack

在這裏它打包回二進制是所得代碼

require 'openssl' 
require 'base64' 

def ask(prompt) 
    loop do 
     print prompt, ' ' 
     $stdout.flush 
     s = gets 
     return s.chomp 
    end  
end 

def aes(m,k,t) 
(aes = OpenSSL::Cipher::Cipher.new('aes-256-cbc').send(m)).key = Digest::SHA256.digest(k) 
aes.update(t) << aes.final 
end 

def encrypt(key, text) 
aes(:encrypt, key, text) 
end 

def decrypt(key, text) 
aes(:decrypt, key, text) 
end 


def my_decrypt 
@crypted = ask("Crypted data: ") 
decrypted = decrypt("12345678911131517192123252729313",[@crypted].pack('H*')) 
print decrypted 
end 

def my_encrypt 
@decrypted = ask("Data to encrypt: ") 
crypted = encrypt("12345678911131517192123252729313",@decrypted) 
print u=crypted.unpack('H*') 
end 


option=ask("Option 1 - Encrypt, 2 decrypt") 
case option 
    when "1" then my_encrypt 
    when "2" then my_decrypt 
    else print "Option not valid" 
end