hash

问题 Is there a way to reliably fix the order of dictionary handling in Python 3, i.e. establish iteration over keys and values with a predictable order? For debugging purposes and to reproduce a failure that, supposedly, is based on dictionary access in python 3.3 and 3.4, I need to somehow make the iteration over dictionaries predictable. What I mean is I want to fix the way any iteration is performed at the start of the Python program. Such that starting the program many times, calls to dict

问题 Firebase offers 'Simple Login' in which email/password is used for authentication. Does anyone know if firebase salts and hashes the password before storing it? I imagine that firebase would know enough to do so, but I just wanted to make sure, because I could not find anything on this after an hour of searching. Anticipated follow up: If firebase in fact does not salt+hash the passwords, would the Simple Login work if I took the user's password, salted+hashed, and passed it onto firebase to

问题 Firebase offers 'Simple Login' in which email/password is used for authentication. Does anyone know if firebase salts and hashes the password before storing it? I imagine that firebase would know enough to do so, but I just wanted to make sure, because I could not find anything on this after an hour of searching. Anticipated follow up: If firebase in fact does not salt+hash the passwords, would the Simple Login work if I took the user's password, salted+hashed, and passed it onto firebase to

问题 Firebase offers 'Simple Login' in which email/password is used for authentication. Does anyone know if firebase salts and hashes the password before storing it? I imagine that firebase would know enough to do so, but I just wanted to make sure, because I could not find anything on this after an hour of searching. Anticipated follow up: If firebase in fact does not salt+hash the passwords, would the Simple Login work if I took the user's password, salted+hashed, and passed it onto firebase to

问题 github readme.md files are displaying '#' symbols instead of rendering as headers #Please FORK this project ##Visit our descriptive wiki instead of being rendered as: Please FORK this project Visit our descriptive wiki from what i can tell, it just started out of nowhere, it used to be fine - dumb, i know. any advice? 回答1: You need to have a space after the # character before the text. That will give you what you want. Then you will get what you want! In general, Markdown is pretty picky

问题 As stated in this link: There is no specialization for C strings. std::hash produces a hash of the value of the pointer (the memory address), it does not examine the contents of any character array. Which means that with the same char* value, different hashcodes could be produced. For example, having this code: //MOK and MOV are template arguments void emit(MOK key, MOV value) { auto h = hash<MOK>()(key); cout<<"key="<<key<<" h="<<h<<endl; ... This is the output produced by calling 4 times

问题 I have two project which using .net 4.0 and .net 4.6.1, the KeyDerivation only available after .net 4.5.1. How can I get the same hash result in .Net 4.0 using other hash library such as Rfc2898DeriveBytes/ Crypto byte[] salt = new byte[128 / 8]; var hashedPassword = Convert.ToBase64String(KeyDerivation.Pbkdf2( password: "GN(o@D30", salt: salt, prf: KeyDerivationPrf.HMACSHA512, iterationCount: 100000, numBytesRequested: 256 / 8) ); 回答1: Problem with Rfc2898DeriveBytes is that it only supports

问题 So, I successfully encrypt a password to password hash using this following code : class PassHash { // blowfish private static $algo = '$2a'; // cost parameter private static $cost = '$10'; // mainly for internal use public static function unique_salt() { return substr(sha1(mt_rand()), 0, 22); } // this will be used to generate a hash public static function hash($password) { return crypt($password, self::$algo . self::$cost . '$' . self::unique_salt()); } // this will be used to compare a

问题 So, I successfully encrypt a password to password hash using this following code : class PassHash { // blowfish private static $algo = '$2a'; // cost parameter private static $cost = '$10'; // mainly for internal use public static function unique_salt() { return substr(sha1(mt_rand()), 0, 22); } // this will be used to generate a hash public static function hash($password) { return crypt($password, self::$algo . self::$cost . '$' . self::unique_salt()); } // this will be used to compare a

问题 I know that in Ruby you can create hash maps like this: hash = {"name"=>"John"} But is it possible to have a hash map of methods: hash = {"v"=> show_version} and when calling hash["v"] either to execute the show_version function, or to return some kind on pointer that passed to some special method, to execute the function from the hash? What I am trying to achieve, is to have a hash map of methods, instead of using a case/when construction, as it looks too verbose to me. 回答1: Not exactly like