如何紅寶石

Question

我要加密使用PKCS5padding 我的紅寶石方法如下，如何在這裏使用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 

這裏AES 256位ECB模式的數據的關鍵是OpenSSL的使用AES 256 ECB PKCS5Padding加密數據： ：PKey :: RSA類型，投擲no implicit conversion of OpenSSL::PKey::RSA into String異常

Answer 1

我認爲你的密鑰格式不正確。你試圖通過RSA密鑰，當鑰匙應該只是一個哈希字符串...是這樣的：

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

Answer 2

您應該使用

key = cipher.random_key 

代替RSA密鑰

我在下面的方式使用它爲我的目的

1. 生成暗號隨機密鑰
數據
2. 待辦事項AES加密，這些密鑰
3. 供應之前的按鍵與RSA公鑰

與RSA私鑰

解密加密它在接收器端

1. 解密暗號鍵帶有密碼鍵的數據

注意：我們無法使用RSA私鑰/公鑰b加密大數據ASED技術

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!!'