salt

问题 Question says it all, what is the best method of generating a random salt (to be used with a hash function) in C#? 回答1: You should use the RNGCryptoServiceProvider class to generate cryptographically secure random numbers.. 回答2: Enterprise Library should be able to create a random salt for you very effectively. Check it out here. 来源： https://stackoverflow.com/questions/6415724/best-way-to-generate-random-salt-in-c

问题 I've made encrypting of the password in my register script and they are stored in the database, and I have to use them to login, so I would want to use the unencrypted ones to login. I've read some of the threads in here but nothing is helping me. How can I add it in my login.php? The salt is also stored in the database. This is my register.php script for encrypting $hash = hash('sha256', $password1); function createSalt() { $text = md5(uniqid(rand(), TRUE)); return substr($text, 0, 3); }

问题 What is "salt" when relating to MYSQL sha1? I have no idea what salt is when relating to sha1 password encryptions? Can someone please explain what it is? 回答1: A salt is a value that is added to a password (or other secret) which you want to hash one way. This means it could be before, after, or somewhere inside the password, as long as its position and value is consistent for a given supplied password. What this does is it mitigates dictionary attacks - basically dictionaries of common

问题 Update: Please note I am not asking what a salt is, what a rainbow table is, what a dictionary attack is, or what the purpose of a salt is. I am querying: If you know the users salt and hash, isn't it quite easy to calculate their password? I understand the process, and implement it myself in some of my projects. s = random salt storedPassword = sha1(password + s) In the database you store: username | hashed_password | salt Every implementation of salting I have seen adds the salt either at

问题 Update: Please note I am not asking what a salt is, what a rainbow table is, what a dictionary attack is, or what the purpose of a salt is. I am querying: If you know the users salt and hash, isn't it quite easy to calculate their password? I understand the process, and implement it myself in some of my projects. s = random salt storedPassword = sha1(password + s) In the database you store: username | hashed_password | salt Every implementation of salting I have seen adds the salt either at

问题 I am attempting to create my first login page as a learning exercise. My plan was to pre hash the password using a salt of the username for example. Store that in a text file and then when when the user logs in i would hash the password using the same salt and compare the results to the text file. I am a complete beginner with security etc so i dont know if this would be secure or not? What is the norm for small applications? if this method isnt recommended, what is a suitable simple

问题 It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center. Closed 6 years ago . I'm sure there's something fundamental to all of this that simplifies the whole concept that I'm missing, but here goes: OK, you salt & hash passwords for security, but what about the code that does it? If you're

问题 I'm on OSX. I'm installing Salt by following Salt's official guide here and I've ran into a problem. Running 'sudo pip install salt' gives me the following error. clang: error: unknown argument: '-mno-fused-madd' [-Wunused-command-line-argument-hard-error-in-future] I put the entire installation text in this gist. I just want to install salt via pip. Any ideas? Attempted Solutions used from other overflow questions I've tried export CFLAGS=-Qunused-arguments and export CPPFLAGS=-Qunused

问题 I'm creating a REST API in java for an online store with Spring Boot, I want to securely store user passwords in the database, for this I am using BCrypt that comes included with spring security, I use MySQL and JPA-Hibernate for persistence. And I am implementing it as follows: This is the user entity: @Entity @SelectBeforeUpdate @DynamicUpdate @Table (name = "USER") public class User { @Id @GeneratedValue @Column(name = "USER_ID") private Long userId; @Column(name = "ALIAS") private String

问题 I am using a HTTP POST from android to some php script in order to update a users password in the database. I am using the same SALT hash as is done when the user creates the account and the database update is running and changing the values of SALT however when I try to log in with the new password it is coming as incorrect. The initial code for creating the password is: public function storeUser($name, $email, $password, $rand) { $uuid = uniqid('', true); $hash = $this->hashSSHA($password);