我想像java代码一样在Ruby上使用Digest::MD5。这是 java 代码:
public static String MD5Encode(String input, String salt) {
try {
MessageDigest messageDigest = MessageDigest.getInstance("MD5");
byte[] hash = null;
try {
messageDigest.update(salt.getBytes("UTF-8"));
messageDigest.update(input.getBytes("UTF-8"));
hash = messageDigest.digest();
} catch (UnsupportedEncodingException exception) {
logger.error("MD5Encoder:Encode:" + exception.toString());
}
if (hash != null) {
StringBuilder output = new StringBuilder(2 * hash.length);
for (byte b : hash) {
output.append(String.format("%02x", b & 0xff));
}
return output.toString();
}
} catch (NoSuchAlgorithmException exception) {
logger.error("MD5Encoder:Encode:" + exception.toString());
}
return null;
}
这是 Ruby 代码,但结果不对:(Java 中的输入变量是 Ruby 上的密码变量,两者上的 salt 变量相同)
salt = SecureRandom.hex
if (params[:gamestate_password] != "")
password = Digest::MD5.hexdigest(params[:gamestate_password] + salt)
user_query = "UPDATE user_v54 SET password= '#{password}', passwordSalt= '#{salt}' WHERE userId='#{params[:userId]}'"
end
你应该按照与java相同的顺序将盐放在ruby中(在密码前面):
password = Digest::MD5.hexdigest(salt + params[:gamestate_password])