Expanded encryption and decryption signature algorithm supports multiple signature digest algorithms including SM2 elliptic curve public-private key algorithm and SM3 cryptographic hash algorithm to make the calculation based on public-private key-ke…

加密,是以某种特殊的算法改变原有的信息数据,使得未授权的用户即使获得了已加密的信息,但因不知解密的方法,仍然无法了解信息的内容.大体上分为双向加密和单向加密,而双向加密又分为对称加密和非对称加密(有些资料将加密直接分为对称加密和非对称加密). 双向加密大体意思就是明文加密后形成密文,可以通过算法还原成明文.而单向加密只是对信息进行了摘要计算,不能通过算法生成明文,单向加密从严格意思上说不能算是加密的一种,应该算是摘要算法吧.具体区分可以参考: (本人解释不清呢 …… ) http://secur…

catalogue . 隐写术 . Substitution cipher . Transposition cipher . Bacon's cipher . LSB-Steganography 1. 隐写术 0x1: 文件Binary拼接隐藏(增加数据) . 制作一个1.zip,把想要隐藏的东西放进去 . 再需要一张jpg图片2.jpg . 执行一个命令 copy /b .jpg+.zip output.jpg . 得到一张隐写图片,这是利用了copy命令,将两个文件已二进制方式连接起来,生成…

public MainWindow() { InitializeComponent(); Title = getUUID(); string s= httpGet("http://220.181.57.216/"); //MessageBox.Show(s); MessageBox.Show( CheckSum("2019-9-10")); string sEncode=encode("0;2018-12-30"); string sDecode…

1. What is TDE? Briefly speaking, TDE is used to encrypted data. 2. The benifits: Belows are come from Oracle Offical: As a security administrator, you can be sure that sensitive data is encrypted and therefore safe in the event that the storage medi…

//Paul Tero, July 2001 //http://www.tero.co.uk/des/ // //Optimised for performance with large blocks by Michael Hayworth, November 2001 //http://www.netdealing.com // //THIS SOFTWARE IS PROVIDED "AS IS" AND //ANY EXPRESS OR IMPLIED WARRANTIES, I…

/** * \file aes.h * * \brief AES block cipher * * Copyright (C) 2006-2010, Brainspark B.V. * * This file is part of PolarSSL (http://www.polarssl.org) * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org> * * All rights reserved. * *…

今天同学请教我这个问题,被坑了次…… 实现的功能是2个Java类:一个读取源文件生成加密文件,另一个类读取加密文件来解密. 整个过程其实很简单,java有AES的工具包,设好秘钥,设好输入内容,就得到加密结果和解密结果了. 然而百度搜AES加密,最先跳出的必须是这个博客 http://www.cnblogs.com/freeliver54/archive/2011/10/08/2202136.html 后来才发现下面的评论: “kgen.init(128, new SecureRandom(pa…

from:http://msdn.microsoft.com/en-us/library/ms229335.aspx 我们平时在VS.net里引用的那些类库就是从这里来的 The .NET Framework class library is a library of classes, interfaces, and value types that provides access to system functionality and is designed to be the foundat…

Using AES with Java Technology By Rags SrinivasJune 2003 In September 2000, the National Institute of Standards and Technology (NIST) approved the Federal Information Processing Standards (FIPS) 197(pdf 279.5 kb), culminating a multi-year effort to r…

jose4j / JWT Examples View History JSON Web Token (JWT) Code Examples Producing and consuming a signed JWT Using an HTTPS JWKS endpoint Using JWKs X.509 Something else? (X.509 Certificates at some HTTPS endpoint, maybe) Two-pass JWT consumption Produ…

Mobile Resources for Mac and iOS Developers- Introduction to Objective-C Modules Other 10 Principles of Good Mobile Library Design Build Hadoop Eclipse Plug-in Jar From Source Code And Install That Plug-in In Eclipse IDE Mobile Web Problems and How t…

debug aaa accounting through debug auto-config debug aaa accounting : to display information on accountable events as they occur(in privileged EXEC mode) no debug aaa accounting : to disable debugging output debug aaa authentication : to display info…

https://en.wikipedia.org/wiki/RSA_(cryptosystem) RSA is one of the first practical实用性的 public-key cryptosystems and is widely used for secure data transmission. In such a cryptosystem密码系统, the encryption key is public and differs from the decryption…

HTTP Status 500 - Request processing failed; nested exception is javax.crypto.IllegalBlockSizeException: Input length must be multiple of 8 when decrypting with padded cipher org.springframework.web.util.NestedServletException: Request processing fai…

源地址:http://www.w3hacker.com/?p=156   ssh-agent的manual写得倒是挺详细,可看了好几次都没怎么搞明白.08年在网上找到了非常好的一篇文章,An Illustrated Guide to SSH Agent Forwarding (后文简称agent guide), 将ssh的各种认证方法讲得非常之详细. 文章从密码认证,公钥认证,使用agent以及agent forward的公钥认证几个方面,逐步的将整个过程剖析得非常全面. 看完之后总算是入了门,…

openssl 安装可参照之前文章 1.mkdir /etc/ssl/xip.ioopenssl genrsa -out /etc/ssl/xip.io/xip.io.key 1024openssl req -new -key /etc/ssl/xip.io/xip.io.key -out /etc/ssl/xip.io/xip.io.csr> Country Name (2 letter code) [AU]:US> State or Province Name (full name) [S…

Delphi进行数据加密,在数据库方面经常要使用到.从网上转载过来的,以后会经常会用到. 一.MD5加密算法 在C#/.Net里提供了MD5加密的类库.在Delphi中没有.只能自己建一个新的单位,将网上别人写的MD5加密函数拿来用. {******************************************************************} { MD5 Hashsum Evaluation Unit For Borland Delphi } { } { Copyri…

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…

Introduction The Internet changes the ways in which companies handle their day-to-day business and how they compete in the marketplace. With the advent of new Web technologies and an increase in the number of customers accessing resources that are av…

Introduction The Internet changes the ways in which companies handle their day-to-day business and how they compete in the marketplace. With the advent of new Web technologies and an increase in the number of customers accessing resources that are av…

原本到了睡觉的时间,但是做完了SSL的笔记还有GCC和Oracle等的好多的笔记,所以刻苦一点. The Priciple of Encryption/Decryption --conventional encryption 上节成功的安装好了openssl安全库,下面就进入一些加解密的理论的学习,有关的权威的书籍<应用密码学:协议.算法与C源程序> 作者:Bruce Schneier整个加密的过程就是一种数学的变换:对应的数学表示: 加密时,f1是加密的函数变换,它的输入是明文和口令,解密时…

使用OpenSSL生成证书 首先得安装OpenSSL软件包openssl,安装了这个软件包之后,我们可以做这些事情: o Creation of RSA, DH and DSA Key Parameters # 创建密钥 key o Creation of X.509 Certificates, CSRs and CRLs # 创建证书 o Calculation of Message Digests                # o Encryption and Decryption wi…

http://publib.boulder.ibm.com/infocenter/idshelp/v115/index.jsp?topic=/com.ibm.sqls.doc/ids_sqs_0187.htm List of Expressions Each category of SQL expression includes many individual expressions. The following table lists all the SQL expressions (and…

转自:http://www.thinkemb.com/wordpress/?p=18 参考:http://blog.csdn.net/shuanyancao/article/details/8985963 http://stackoverflow.com/questions/18152913/aes-aes-cbc-128-aes-cbc-192-aes-cbc-256-encryption-decryption-with-openssl-c Openssl是很常见的C接口的库,个人觉得易用.以…

新年新气象,也希望新年可以挣大钱.不管今年年底会不会跟去年一样,满怀抱负却又壮志未酬.(不过没事,我已为各位卜上一卦,卦象显示各位都能挣钱...).已经上班两天了,公司大部分人还在休假,而我早已上班,估计今年我就是加班狗的命.(不说了,要坚强...) 以上扯淡已毕,下面言归正传. 这次的.NET加密解析系列中,前面已经讲解了散列加密.对称加密.数字签名三种加密方式,在这篇博文种,将会主要讲解非对称加密的原理,以及非对称加密在.NET种的应用. 一.非对称加密概述: 前面讲解过对称加密,对称加密中…

PHP的AES加密类 aes.php <?php /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  */ /*  AES implementation in PHP (c) Chris Veness 2005-2011. Right of free use is granted for all    */ /*    commercial or non…

Preface At the first time, we take the connection with GitLab remote server. You need to type username and password as your individual credentials to login the server, since the connection between the client(your computer) and remote server(Git sever…

该crackme主要实现都在so中,用ida加载libqihoo.so,出现以下错误 第一个错误说明是节区头部表格的表项大小错误,第二个错误是指节区头部表格的大小或偏移值错误.不管它,点击“Yes”继续加载.找到JNI_OnLoad函数,发现该函数已经加密: 我们知道so 文件加载时首先会查看 .init 或 .init_array 段是否存在,如果存在那么就先运行这段的内容,如果不存在的话那么就检查是否存在JNI_OnLoad,存在则执行.所以JNI_OnLoad的解密可能在 .init 或…

常用加密算法: DES:Data Encryption Standard,即数据加密算法,它是IBM公司于1975年研究成功并公开发表的. DES(数据加密标准)原理: DES是一个分组加密算法,它以64位为分组对数据加密.64位一组的明文从算法的一端输入,64位的密文从另一段输出.它是一个对称算法:加密和解密用的是同一个算法.      密钥通常表示为64位的数,但每个第8位都用作奇偶校验,可以忽略,所以密钥长度为56位.密钥可以是任意的56位的数,且可在任意的时候改变.      DES算法…