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我正在尝试做一个示例应用程序，用于测试目的与其他人开发，并希望将加密字符串打印到屏幕上，并将其放回解密机制......我似乎不是找到这样做的方法...我已经尝试过 base64 并解压缩，感觉就是这样，但没有到达那里。

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

有人来救援吗？

谢谢

4

1 回答 1

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经过一番斗争，我终于明白了......我只需要将二进制转换为十六进制，然后再转换回二进制......

两个注意事项：要将二进制转换为十六进制，您可以使用String.unpack，它将返回一个数组。要将十六进制转换为二进制，首先需要将其构建为数组 ["anystringhere"] ，然后使用Array.pack将其打包回二进制

这是结果代码

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
于 2012-07-20T17:53:38.497 回答