如何红宝石

Question

我要加密使用PKCS5padding 我的红宝石方法如下，如何在这里使用PKCS5Padding

def encrypt(raw_data,key) 
    cipher = OpenSSL::Cipher::AES.new(256, :ECB) 
    cipher.encrypt 
    cipher.key = key 
    encrypted_data = cipher.update(raw_data) + cipher.final 
end 

这里AES 256位ECB模式的数据的关键是OpenSSL的使用AES 256 ECB PKCS5Padding加密数据： ：PKey :: RSA类型，投掷no implicit conversion of OpenSSL::PKey::RSA into String异常

Answer 1

我认为你的密钥格式不正确。你试图通过RSA密钥，当钥匙应该只是一个哈希字符串...是这样的：

key = SecureRandom.hex(32) 
=> "b67f7a5bf031aaa730473e5a9612a94b157c43aed5f52a2e70c9573f2d5a4ecd" 

Answer 2

您应该使用

key = cipher.random_key 

代替RSA密钥

我在下面的方式使用它为我的目的

1. 生成暗号随机密钥
数据
2. 待办事项AES加密，这些密钥
3. 供应之前的按键与RSA公钥

与RSA私钥

解密加密它在接收器端

1. 解密暗号键带有密码键的数据

注意：我们无法使用RSA私钥/公钥b加密大数据ASED技术

Super secured Example 

    # At sender side 
    public_key_file = 'public.pem' 

    message = 'Hey vishh you are awesome!!' 
    cipher = OpenSSL::Cipher::AES.new(128, :CBC) 
    cipher.encrypt 
    aes_key = cipher.random_key 
    encrypted_data = cipher.update(message) + cipher.final 
    # encrypted_data is ready to travel 

    rsa = OpenSSL::PKey::RSA.new(File.read(public_key_file)) 
    rsa_cypher_key = rsa.public_encrypt(aes_key) 
    # rsa_cypher_key is ready to travel 

    # sending these data in encoded format is good idea 
    encrypted_data = Base64.encode64(encrypted_data) 
    rsa_cypher_key = Base64.encode64(rsa_cypher_key) 
    ====> encrypted_data + rsa_cypher_key =====> Travelling 
    encrypted_data = Base64.decode64(encrypted_data) 
    rsa_cypher_key = Base64.decode64(rsa_cypher_key) # decode the data 

    # At recevier side 
    private_key_file = 'private.pem' 
    # Decrypt the cypher key with private key 
    rsp = OpenSSL::PKey::RSA.new(File.read('./config/private.pem')) 
    aes_key = private_key.private_decrypt(rsa_cypher_key) 

    decipher = OpenSSL::Cipher::AES.new(128, :CBC) 
    decipher.decrypt 
    decipher.key = aes_key 
    message = decipher.update(encrypted_data) + decipher.final 
    p message 
    'Hey vishh you are awesome!!'