sha1

I cant find how to decode string encoded in sha1. I'm suprised that i can't find simple function in python docs or google doing sha1 decoding. I give up. I need help.. SHA1 is a hashing algorithm. Hashing is one-way, which means that you can't recover the input from the output for any non-trivial hash function. A simple example of a one-way hash function would be adding together all the digits of a number. 1234 would hash to 1 + 2 + 3 + 4 = 10 , but so would 4321 , 1900 , 5050 , and many other numbers. Given just the hash value of 10 , you can't tell whether the input was 1234 or 5050 because

I got the SHA-1 fingerprint from using the keytool for my application on my key that I sign the application with when I upload it to the play store. But when I open the app on my phone for testing it says it is not the right key. ANy ideas what I could be doing wrong? Not sure what more information i can give without giving security info for my app, so if you can help give me anymore information that I can not think of please let me help you help me. First for the development generate a SHA-1 from debug.keystore: Navigate to C:\Program Files\Java\jdk1.6.0\bin>..... where your bin located then

Is there any advantage to sha1(sha1(sha1($password. $salt))); Basically having multiple sha1 verses just one sha1 sha1($password. $salt); Do not, I repeat, DO NOT attempt to make your password hash safer by doing "special" things do your hash. First of all, sha1(sha1(sha1($input))) only has for side effect to increase the chance of collision * on each iteration. Increasing the chance of collisions is a very bad thing. Instead of trying your hand at do-it-yourself cryptology, why not trust libraries made by actual experts in the field? Use the Portable PHP password hashing framework . PHPass

OS 模块 #os模块就是对操作系统进行操作，使用该模块必须先导入模块： import os #getcwd() 获取当前工作目录(当前工作目录默认都是当前文件所在的文件夹) result = os.getcwd() print(result) #chdir()改变当前工作目录 os.chdir('/home/sy') result = os.getcwd() print(result) open('02.txt','w') #操作时如果书写完整的路径则不需要考虑默认工作目录的问题,按照实际书写路径操作 open('/home/sy/下载/02.txt','w') #listdir() 获取指定文件夹中所有内容的名称列表 result = os.listdir('/home/sy') print(result) #mkdir() 创建文件夹 #os.mkdir('girls') #os.mkdir('boys',0o777) #makedirs() 递归创建文件夹 #os.makedirs('/home/sy/a/b/c/d') #rmdir() 删除空目录 #os.rmdir('girls') #removedirs 递归删除文件夹 必须都是空目录 #os.removedirs('/home/sy/a/b/c/d') #rename() 文件或文件夹重命名 #os.rename(

ssh client 报 algorithm negotiation failed的解决方法之一 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。

I'm trying to build a portable class library that generates OAuth urls for other classes/applications to use. This class library using OAuth has to be a portable class library so it can work with different versions of a DropBox API I'm building. Part of this class needs to generate an SHA1 hash to generate the oauth_signature with. I'm aware that portable class library doesn't support System.Security.Cryptography, so is there anyway that this class can generate an SHA1 hash without that class? Mono provides a managed implementation of SHA1 for it's own mscorlib.dll (but it's not located in

I'm currently coding my own CMS and I'm at the state of password... I want to know if I can md5 a password then sha1 it after? Like: $password = md5(sha1(mysql_real_escape_string($_POST['passw']))); You can md5 any data you'd like, even if it was hashed before. It will, however, only increase the risk of collisions because you're now working on a smaller dataset. What are you trying to achieve? Yes you can. No it doesn't make sense. The security of chained hash functions is allways equal to or less than the security of the weakest algorithm. i.e. md5(sha1($something)) is not more secure, than