sha1

Converting SHA1 to normal form

試著忘記壹切 提交于 2019-12-02 07:49:25
问题 I have a database where every password is passed via SHA1. Sometimes, I want to go to the users dashboard and look how it feels like. Is there a way, I could convert SHA1 to normal form just for testing purposes? Thank You 回答1: If by "normal form" you mean "can I retrieve the string that created a given hash", the answer is no. And it should be NO, because that's the whole point of secure hashes: make it very easy to create, extremely complicated (ideally impossible) to revert, otherwise, why

ssh client 报 algorithm negotiation failed的解决方法

妖精的绣舞 提交于 2019-12-02 07:35:56
修改sshd的配置文件 /etc/ssh/sshd_config 在配置文件中添加: Ciphers aes128-cbc,aes192-cbc,aes256-cbc,aes128-ctr,aes192-ctr,aes256-ctr,3des-cbc,arcfour128,arcfour256,arcfour,blowfish-cbc,cast128-cbc MACs hmac-md5,hmac-sha1,umac-64@openssh.com,hmac-ripemd160,hmac-sha1-96,hmac-md5-96 KexAlgorithms diffie-hellman-group1-sha1,diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha1,diffie-hellman-group-exchange-sha256,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group1-sha1,curve25519-sha256@libssh.org 重启sshd服务后,即可正常连接。 导致此问题的原因是ssh升级后,为了安全,默认不再采用原来一些加密算法,我们手工添加进去即可。 来源: oschina 链接:

Getting hash of a binary file C

青春壹個敷衍的年華 提交于 2019-12-02 05:05:00
I want to get hash of a binary file whose name I have. I have tried the following, but then realized that SHA1() is returning hash value for the string ( name of the file). But I want to run it on the file itself. Any pointers on how to do that would be great. char *fileName = "/bin/ls" unsigned char hash[SHA_DIGEST_LENGTH]; SHA1((unsigned char *)fileName, strlen(fileName),hash); Thanks to everyone's comments I solved the problem. I am posting the code here, so others might find it beneficial. void getFileHash(char *fileName){ unsigned char result[2*SHA_DIGEST_LENGTH]; unsigned char hash[SHA

Converting SHA1 to normal form

一世执手 提交于 2019-12-02 04:10:25
I have a database where every password is passed via SHA1. Sometimes, I want to go to the users dashboard and look how it feels like. Is there a way, I could convert SHA1 to normal form just for testing purposes? Thank You If by "normal form" you mean "can I retrieve the string that created a given hash", the answer is no. And it should be NO, because that's the whole point of secure hashes: make it very easy to create, extremely complicated (ideally impossible) to revert, otherwise, why on Earth would you make a secure hash? If you are trying to hack on the user's accounts, then I suggest you

哈希算法MD5和SHA1的C#实现

风流意气都作罢 提交于 2019-12-02 02:58:24
/* * 哈希算法MD5和SHA1的C#实现 * * * 夏春涛 Email:xChuntao@163.com * Blog:http://bluesky521.cnblogs.com * 运行环境:.net2.0 framework */ /* * 关于哈希函数: * 哈希函数将任意长度的二进制字符串映射为固定长度的小型二进制字符串。 * 加密哈希函数有这样一个属性:在计算上不大可能找到散列为相同的值的两个 * 不同的输入;也就是说,两组数据的哈希值仅在对应的数据也匹配时才会匹配。 * 数据的少量更改会在哈希值中产生不可预知的大量更改。 * * MD5 算法的哈希值大小为 128 位。 * SHA1 算法的哈希值大小为 160 位。 */ using System; using System.Collections.Generic; using System.Text; using System.Security.Cryptography; namespace MD5_App { class Program { static void Main(string[] args) { string strSrc = "How are you?"; Console.WriteLine("原文:" + strSrc); Console.WriteLine(); Console

加解密合集

有些话、适合烂在心里 提交于 2019-12-01 23:18:18
using System; using System.IO; using System.Text; using System.Windows.Forms; using System.Security.Cryptography; using System.Web; using System.Text.RegularExpressions; namespace Crypto { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void button7_Click(object sender, EventArgs e)//md5选择文件 { OpenFileDialog openFile1 = new OpenFileDialog(); openFile1.RestoreDirectory = true; if (openFile1.ShowDialog() == DialogResult.OK) { textBox3.Text = openFile1.FileName.ToString(); } } private void button10_Click(object sender, EventArgs e)//sha1选择文件 { OpenFileDialog

Why does Perl and /bin/sha1 give different results?

与世无争的帅哥 提交于 2019-12-01 17:50:42
I'm confused as to why the following return separate sHA1s $ perl -MDigest::SHA1 -E'say Digest::SHA1::sha1_hex("http://i.aultec.com/v/8066/Originals/1FTVX12585NA9832010.jpg");' e1133fa3b7ea0bfb8ffa4d877932ed6c6fa10cef $ echo "http://i.aultec.com/v/8066/Originals/1FTVX12585NA9832010.jpg" | sha1sum 5c3731e83ae0184ed93b595b9f5604863dd331e6 - Which one is right? Am /I/ doing it wrong? $ perl -MDigest::SHA -E'say Digest::SHA::sha1_hex("http://i.aultec.com/v/8066/Originals/1FTVX12585NA9832010.jpg");' e1133fa3b7ea0bfb8ffa4d877932ed6c6fa10cef You can see the digest is right in the successor ( Digest:

How to Verify a RSA-SHA512 XML Signature in .NET?

生来就可爱ヽ(ⅴ<●) 提交于 2019-12-01 17:08:43
问题 With the help of the MSDN site about SignedXml, I can easily verify if an XML DSig is correct. It works perfectly if the signature method sha1 was used. However, when I receive the SignatureMethod RSA-SHA512 (http://www.w3.org/2001/04/xmldsig-more#rsa-sha512), CheckSignature() breaks with an CryptograhicException: SignatureDescription could not be created for the signature algorithm supplied. It seems like CheckSignature() is not able to verify RSA-SHA512 signatures. Does anyone know how to

bugku 各种·绕过

余生颓废 提交于 2019-12-01 16:22:59
点开是一段PHP的代码,先来审计一波代码。 发现将uname和passwd用sha1进行了加密,那么我们只要绕过这个函数构造相等就可以了。 可以使这两个值sha1的值相等,但他们本身的值又不等。(想详细了解sha1函数绕过的可以看我的这篇博客) 构造 http://120.24.86.145:8002/web7/?uname[]=1&id=margin 并用发送passwd[]=2的请求即可。 便可成功得到flag 来源: https://www.cnblogs.com/lzlzzzzzz/p/11692811.html

Calculating SHA1 hash algorithm in PowerShell V2.0

a 夏天 提交于 2019-12-01 15:57:32
问题 Is it possible to calculate a SHA-1 hash in PowerShell V2.0? The only information I can find online is with PowerShell V4.0. 回答1: I can't remember back in PowerShell V2 days if .NET 3.5 was typically installed too. I think it's the case. You can always try the following and see if it works: $file = 'd:\scripts\sha1.ps1' $sha1 = New-Object System.Security.Cryptography.SHA1CryptoServiceProvider [System.BitConverter]::ToString( $sha1.ComputeHash([System.IO.File]::ReadAllBytes($file))) Replace