Question

我正在尝试做一个示例应用程序，用于测试目的与其他人的开发，并希望在屏幕上打印加密的字符串，并将其放回到解密机制....我只是不似乎找到了这样做的方法......我已经尝试过base64并解压缩，感觉就是这样，但我没有到达那里。

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

有人救援吗？

谢谢

Answer 1

经过一番战斗，我终于明白了...我只需要将二进制转换为Hex，然后再转换为二进制......

两个注意事项：要将二进制文件转换为十六进制，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将其打包回二进制文件

以下是生成的代码

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

使用ruby和openssl加密和解密样本

1 个答案: