View:Verifying the integrity of downloaded files under Linux (MD5,SHA1,PGP)Http://blog.useasp.net/archive/2014/03/29/use-md5-sha1-or-pgp-to-check-downloaded-file-integrity-on-linux.aspxLinux is always difficult to learn, but sometimes, but found
First, Base64 code
Second, MD5, SHA1, SHA256, SHA512, HMAC implementation
It is said that today 520 is a good day, why I think of 502, 500, 404 these? Fortunately the server is OK!First, Base64
usually, the encryption algorithm used is simple and efficient, the key is short, the encryption and decryption speed is fast, the decoding is extremely difficult. This article describes the use of Md5/sha1,dsa,desede/des,diffie-hellman.
#coding: GBK#md5SHA1 file Check value calculation# How to use: python file . PY Validating FilesImport HashlibImport SysImport OSdefmd5_sum (filename): # Check Value Methodfd=open (filename, "RB") # Open FileFd.seek (0) # move the file hit tag to
Work sometimes need to calculate the string md5/sha1 to calculate or verify the password, Linux, unlike OS X can directly use the-s parameter, now summarize the commonly used methods.1. printf "string" |md5sum/sha1sum2. Echo-n "string"
When I do user login, the background API needs to MD5 the encryption of the number and request time of the merged strings, so on the GitHub to find an encrypted frame, link: https://github. (ox) Com/paulery2014/cocoasecurity, I wrote a
【ProgramIntroduction]Free Open-source file MD5 sha1 sha256 sha512 Verification Code Generation Tool v1.3
This is an interesting program. The same program is a graphical program and a command line program.Program role:Enter the path of a file and
1. base64 Encryption
Introduce the base64.js file to the page. The call method is as follows:
2. md5 Encryption
REFERENCE The md5.js file on the
Digest algorithm MD5, SHA1 introduction and application instance code in Python, pythonsha1
For algorithm learning, I think most of the algorithms in programming languages are in the same place. The main aspect is to understand what this algorithm
1.MD5 algorithmNon-reversible128-bit or 64-bit string, byte digit length is 16 and 8, the general expression is to use the 16 binary to represent, 1 byte is converted to 2 16bit, representing the high status, so the generated string is 16 bit or 32
1. Brief descriptionOpenSSL offers a wealth of cryptographic tools, some commonly used hashing algorithmsFor example, Md5,sha can be used directly with the provided md5.h, sha.h interface;For the convenience of developers, OpenSSL also provides an
Using Python for file hash calculations there are two points to note:1, file Open the way must be binary mode, both open the file when using B mode, or hash calculation is based on the text that will get the wrong file hash (online to see someone
1. [Code]MD5String str = "abc"// with . NET generated MD5 method, the generated content is consistent with Java:String str = "ABC" "MD5");2. [Code]SHA1String str = "abc"// with . NET generates SHA1 in the same way that the generated content is
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Users who often download software will find that many Download Software websites provide MD5 values. The MD5 value verification code is also provided for the 1 of the different dimensions. So what is the MD5 value? The entire process of MD5 is
Using system;using system.io;using system.data;using system.text;using system.diagnostics;using System.Security; Using system.security.cryptography;/* *. NET Framework, with its rich library support provided by the CLR, requires little code to
People who often download software under Linux must have a good habit of verifying the hash of the file to determine the integrity of the file or even security. When I configure the environment also happens to use, the author is a lubuntu machine. I'
From: Http://hi.baidu.com/zhy65991/blog/item/0a663172b039321a8601b0e4.html Usually, the encryption algorithm used is relatively simple and efficient, the key is short, encryption and decryption speed, deciphering extremely difficult. This paper
1, Base64 encryption
The Base64.js file is introduced into the page, and the method is called:
2, MD5 encryption
Referencing the Md5.js file in the page, calling the method
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