advantages of hashing passwords

Yesterday afternoon lunch, a news on Sina caught my attention. In the news, a web-site database called Sesame Finance was compromised, and the passwords recorded in the database were hashed only once. Although I did not break its white hat, I did

In Ubuntu, The/etc directory contains three files related to user logon Access Control: passwd, shadow, and group. In the past, older Unix systems put hash-processed passwords directly in the passwd file. Now * nix stores the processed passwords in

Freesco implements Linux Routing SystemThe Internet is made up of network interconnection, and the device implementing Internet interconnection is the gateway. Any user connects to the Internet through a gateway. Most gateways on the Internet are

1 sha Encryption: Secure Hash algorithm is mainly applicable to digital signature algorithms (Digital Signature algorithm DSA) defined in the digital signature standard (Digital Signature Standard DSS). For messages that are less than 2^64 bits in

The simple hash is to use the combination of array plus list to achieve, this hash is very simple, but the idea of hash in that.#ifndef _hash_h_#define _hash_h_typedef struct _listnode{struct _listnode *prev;struct _listnode *next;void *data;}

PHP password_hash () uses an instance. I. preface PHP5.5 provides many new features and Api functions, one of which is PasswordHashingAPI (creating and verifying hash passwords ). It contains four functions: password_get_info (), passwor 1,

PPP Protocol composition and brief description of the basic process of Protocol negotiation 1. PPP (Point-to-Point Protocol) is a link layer Protocol designed for the transmission of data packets between the same unit and other simple links. The

1. Introduction?? Today I would like to share with you the various encryption and decryption algorithms used in Internet communication, before we introduce the encryption and decryption knowledge, we first understand the meaning of the relevant

Original article address: http://network.51cto.com/art/201009/223664.htm,   Point-to-point mode. The protocol that supports this form is the PPP protocol. Do you know the functions and functions of this protocol? Here we will detail the PPP protocol.

I. PrefacePHP5.5 provides many new features and Api functions, one of which is the Password Hashing API (create and verify the hash Password ).It contains four functions: password_get_info (), password_hash (), password_needs_rehash (), and password_