本文转自:http://www.metamorphosite.com/one-way-hash-encryption-sha1-data-software   Home Posted: November 12, 2007 How Hash Algorithms Work This page was written for people who really want to know exactly how hash algorithms work. The following is a comp…

来看看SHA-1到底是如何工作的 http://www.metamorphosite.com/one-way-hash-encryption-sha1-data-software…

<?php /** * Flexihash - A simple consistent hashing implementation for PHP. * * The MIT License * * Copyright (c) 2008 Paul Annesley * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated do…

该篇注意记录一下,有些情况下,我们配置了IPSec ,但是就是无法建立,发现连第一阶段都无法建立起来. 1.检查配置无问题 2.开启debug crypto isakmp发现有IKE的重传 3.show crypto session.show crypto isakmp sa等会话肯定是没有建立起来的 如果遇到这样的情况,请检查IKE第一阶段是否配置了hash sha256 / sha512 等. The algorithms that make up NGE(Next Generation E…

Reference: Compuer science Introduction: This computer science video describes the fundamental principles of the hash table data structure which allows for very fast insertion and retrieval of data. It covers commonly used hash algorithms for numeric…

Awesome系列的.Net资源整理.awesome-dotnet是由quozd发起和维护.内容包括:编译器.压缩.应用框架.应用模板.加密.数据库.反编译.IDE.日志.风格指南等. 算法与数据结构(Algorithms and Data structures) Algorithmia - Algorithm and data-structure library for .NET 3.5 and up. Algorithmia contains sophisticated algorithms…

Background C++ is one of the main development languages used by many of Google's open-source projects. As every C++ programmer knows, the language has many powerful features, but this power brings with it complexity, which in turn can make code more…

- Use certificates with at least sha-256 hash algorithms (including intermediate certificates).- Use strong cipher suites (only 3 are allowed on my server: ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256:ECDHE-RSA-AES256-SHA)…

<?php /** * Flexihash - A simple consistent hashing implementation for PHP. * * The MIT License * * Copyright (c) 2008 Paul Annesley * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated do…

(一)SSL/TLS协议运行机制的概述 一.作用 不使用SSL/TLS的HTTP通信,就是不加密的通信.所有信息明文传播,带来了三大风险. (1) 窃听风险(eavesdropping):第三方可以获知通信内容. (2) 篡改风险(tampering):第三方可以修改通信内容. (3) 冒充风险(pretending):第三方可以冒充他人身份参与通信. SSL/TLS协议是为了解决这三大风险而设计的,希望达到: (1) 所有信息都是加密传播,第三方无法窃听. (2) 具有校验机制,一旦被篡改,通…

SSL Programming Tutorial � Table of Contents [ � Index       This section demonstrates the implementation of a simple SSL client and server program using OpenSSL APIs. Although SSL client and server programs might differ in their setup and configurat…

What has changed in PHP 5.4.x Most improvements in PHP 5.4.x have no impact on existing code. There are a few incompatibilities and new features that should be considered, and code should be tested before switching PHP versions in production environm…

Spring Security’s PasswordEncoder interface is used to support the use of passwords which are encoded in some way in persistent storage. You should never store passwords in plain text. Always use a one-way password hashing algorithm such as bcrypt wh…

Google C++ Style Guide   Table of Contents Header Files Self-contained Headers The #define Guard Forward Declarations Inline Functions Names and Order of Includes Scoping Namespaces Unnamed Namespaces and Static Variables Nonmember, Static Member, an…

刚开始接触NVMe,对此理解不深,如有错误敬请指出 1.1概述 NVM ExpressTM(NVMeTM)接口允许主机软件与非易失性存储器子系统通信. 此接口针对企业和客户端固态驱动器进行了优化,通常作为寄存器级接口连接到PCI Express接口. 注意:在开发期间,此规范称为Enterprise NVMHCI. 但是,在完成之前,该名称已修改为NVM Express基本规范. 此接口适用于客户端和企业系统. 有关从修订版1.2.1到修订版1.3的更改的概述,请参阅http://nvmexpr…

Packages   Standard library Other packages Sub-repositories Community Standard library ▾ Name Synopsis archive   tar Package tar implements access to tar archives. tar包实现了tar格式压缩文件的存取. zip Package zip provides support for reading and writing ZIP arch…

kbmMW is a portable, highly scalable, high end application server and enterprise architecture integration (EAI) development framework for Win32, ..Net and Linux with clients residing on Win32, .Net, Linux, Unix, Mainframes, Minis, Embedded and many o…

Short answer: For verifying ISOs, there is no practical difference, use whichever you want, as long as you trust the source providing the sums. MD5 is/used to be the standard, but the computing world is moving towards adopting SHA since it is newer a…

<?php /** * Flexihash - A simple consistent hashing implementation for PHP. * * The MIT License * * Copyright (c) 2008 Paul Annesley * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated do…

该模块实现了诸多安全哈希和消息摘要算法的通用接口,包括 FIPS 安全哈希算法: SHA1, SHA224, SHA256, SHA384 和 SHA512 算法(在 FIPS 180-2 中定义),还有  RSA 的 MD5 算法(在 RFC 1321 中定义).“安全哈希” 和 “消息摘要” 是等价的,旧的算法被称为消息摘要,新的术语则称其为安全哈希. * adler32 和 crc32 算法在 zlib 模块中. * 某些算法存在已知的哈希冲突漏洞,请参考“六.另见”. 目录 一.创建 h…

算法与数据结构(Algorithms and Data structures) 应用程序接口(API) 应用程序框架(Application Frameworks) 模板引擎(Application Templates) 人工智能(Artificial Intelligence) 程序集与装配件(Assembly Manipulation) 资源(Assets) 验证与授权(Authentication and Authorization) Books Build Automation Cach…

身份认证访问控制安全审计本章实验 ===密码学=====古典密码 算法本身的保密性近代密码 机械密码\机电 密码打字密码机轮转机现代密码 基于密钥公钥密码 公钥==================对称加密 (单\私钥密码算法DES\3DES\IDEA\AES密钥相对较短,一般采用128,192,256比特加密密钥和解密密钥相同,从一个易于推出另一个.效率高,算法简单,系统开销小适合加密大量数据明文长度与密文长度相等密钥管理复杂无法解决消息的篡改\否认问题====================非…

The current information explosion has resulted in an increasing number of applications that need to deal with large volumes of data. While many of the data contains useless redundancy data, especially in mass media, web crawler/analytic fields, waste…

原文出处:wangwenjun69 Java 8 已经出来三年多的时间了,原本计划2016年七月份release Java 9,但是基于种种原因,Java 9 被推迟到了2017年的3月份,本人也在Open JDK的官网上看到了Java 10的标准也在制定当中,Java的发展真的越来越快了,在Java 9正式发布之前,我们可以使用它的SNAPSHOT版本,先来体验一下Java 9 有哪些新的特性,下面的清单来自于官方文档,看着似乎很多,但是真正具有颠覆意义的其实就是Module System,其…

Packages   Standard library Other packages Sub-repositories Community Standard library Name Synopsis archive   tar Package tar implements access to tar archives. zip Package zip provides support for reading and writing ZIP archives. bufio Package buf…

来源:http://www.chinastor.com/a/jishu/mailserver/0G392262014.html 使用PHPmailer发送邮件时的常见问题总结: 一,没有定义发送邮箱$mail->From或格式不正确,错误提示:Language string failed to load: recipients_failed test@chinastor.com,注意,这个配置一定要正确,而且是正确的邮箱 二,没有定义邮件服务主机$mail->Host或连接失败,错误提示:La…

1.可以参考的链接.http://www.helloweba.com/view-blog-205.html 2.下载最新的PHPMailer文件库 3.主要代码 class.phpmailer.php <?php /*~ class.phpmailer.php .---------------------------------------------------------------------------. | Software: PHPMailer - PHP email class |…

bug类型: 1.".equals()" should not be used to test the values of "Atomic" classes.    bug  主要   不要使用equals方法对AtomicXXX进行是否相等的判断   Atomic变量永远只会和自身相等,Atomic变量没有覆写equals()方法.2."=+" should not be used instead of "+="   bug…

phpmailer实现邮件发送 1.代码 <?php require("class.phpmailer.php"); //这个是一个smtp的php文档,网上可以下载得到 $mail = new PHPMailer(); //建立邮件发送类 $mail->CharSet = "UTF-8"; $address ="jiqing9006@qq.com"; $mail->IsSMTP(); // 使用SMTP方式发送 $mail-&…

OpenJDK中的Coin项目(Project Coin)的目的就是为了收集对Java语言的语法进行增强的建议.在Coin项目开始之初,曾经广泛地向社区征求提议.在短短的一个月时间内就收到将近70条提议.最后又9条提议被列入考虑之中.在这9条提议中,有6条成为Java7的一部分,剩下的2条提议会在Java8中重新考虑,还有1条提议被移到其它项目中实现.这6条被采纳提议的语法新特性涉及switch语句中使用字符串.整数字面量的改进.异常处理的优化.泛型创建简化.try-with-resources…