64 bit hash generator

One. Basic concepts of hash functions and hash conflicts 1. Hash function: Hash method is also called hashing method, hash method and keyword address calculation method, etc., the corresponding tables become hash table. Basic idea: First, establish

A recent project reminds me of a very simple way to generate a pseudo-random number to create a raindrop's behavior. I found that if we had a randomly initialized unsigned 32-bit seed n could loop through a pseudo-random number (C) using only

Implementation of Bloom filter algorithm in PHP This article mainly introduces the implementation of the Bloom filter algorithm in PHP, this article directly give implementation code, the code gives detailed comments, Bloom filter algorithm

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

Android Development, will inevitably encounter the need to decrypt some of the data content to the local file, or transmission over the network to other servers and devices, but not the use of encryption is absolutely safe, if the encryption

CodeDownload location: Otpauthentication2008_05.exe (496 KB) Browse the code online This article discusses: Password Problems Generate one-time password Build an OTP Solution Based on Web Services

First, talk about hashing1.1 PrincipleHash (hash, or hashing) functions are widely used in the field of computer science, especially in the field of fast data searching.The effect is to map a large data set onto a small dataset (these small datasets

SSH Chinese documentsSSH is a security protocol created on the application layer and transport layer, which is used to replace the poor security telnet and secure login.SSH is currently a more reliable protocol that provides security for Telnet

《Mobile app intrusion diary (on)"Is widely praised after the release, and now the next set is available, I hope you will like it. [0x03]-server attack "in most cases, one or more web servers communicate with the client. Attacks on mobile app servers

I. Data Encryption/Encoding Algorithm List Common encryption or encoding algorithms used to ensure security are as follows: 1. Common Key Algorithms Key algorithms are used to encrypt sensitive data, summaries, signatures, and other information.