对于我的AES-256 CBC generating我是Ruby encryption implementation一个32字节密钥和16字节iv:
key = SecureRandom.random_bytes(32) # => "m\xD4\x90\x85\xF9\xCD\x13\x98\xAB\v\xBB\xCD\x0E\x17\xFAA\xF9\x99\xAF\e\x8A\xB5\x8Ate\x93[m\x9As\xC7\xCB"
iv = SecureRandom.random_bytes(16) # => "\xDF\x95[\xD5\xDD(\x0F\xB8SE\xFCZr\xF1\xB1W"
ruby_cipher = SymmetricEncryption::Cipher.new(
key: key,
iv: iv,
cipher_name: 'aes-256-cbc'
)
ruby_cipher.encrypt("Hello!") # => 'qAnTLy7jyiLRkUqBnME8sw=='
问题:
如何将密钥和iv转换为十六进制字符串,以便将它们传输到其他应用程序?
上下文:
在另一个使用Javascript via CryptoJS的应用程序中,我需要接收密钥和iv并将它们转换回如下字节:
CryptoJS.AES.encrypt(
"Hello!",
CryptoJS.enc.Utf8.parse(key),
{ iv: CryptoJS.enc.Utf8.parse(iv) }
).toString() // 'qAnTLy7jyiLRkUqBnME8sw=='
在第三个PHP应用程序中,我将直接使用Hex字符串:
<?php
openssl_encrypt(
'Hello!', 'aes-256-cbc',
key,
0,
iv
); // => 'qAnTLy7jyiLRkUqBnME8sw=='
答案 0 :(得分:2)
我认为这应该可以胜任:
key = SecureRandom.random_bytes(32)
key_as_str = key.each_byte.map{ |byte| '%02x' % byte }.join
我使用以下脚本验证了此解决方案:
test.rb
require 'securerandom'
require 'symmetric-encryption'
key = SecureRandom.random_bytes(32)
iv = SecureRandom.random_bytes(16)
ruby_cipher = SymmetricEncryption::Cipher.new(
key: key,
iv: iv,
cipher_name: 'aes-256-cbc'
)
hex_key = key.each_byte.map{ |byte| '%02x' % byte }.join
hex_iv = iv.each_byte.map{ |byte| '%02x' % byte }.join
encoded = ruby_cipher.encrypt("Hello!")
puts "Ruby encoded: #{encoded}"
system("php test.php #{hex_key} #{hex_iv}")
test.php
<?php
$encoded = openssl_encrypt(
'Hello!', 'aes-256-cbc',
hex2bin($argv[1]),
0,
hex2bin($argv[2])
);
print "php encoded: $encoded\n";
在我的机器上看起来一样。