hashlib

问题 the scenario is: I have generated md5 checksum for the pdf file which stored on the server using the following code: def createMd5Hash(self, file_path, pdf_title, pdf_author): md5_returned = None try: md5 = hashlib.md5() with open(file_path, 'rb') as file_to_check: for chunk in file_to_check: md5.update(chunk) md5_file = md5.hexdigest() custom_key = 'xyzkey-{}'.format(md5_file) md5.update(custom_key.encode()) md5_returned = md5.hexdigest() except Exception as e: print("Error while calculate

问题 This question already has answers here : How to get Case Insensitive Python SET (6 answers) How do I do a case-insensitive string comparison? (9 answers) Closed 2 years ago . I have the following script to import and export random TXT/CSV files from CLI, everything that passes has to be unique and case insensitive output in UTF-8, can I accomplish this with a set variable? I'm quite new to Python so every comment or suggestion is welcome! This is my current script; import hashlib import sys

问题 This question already has answers here : How to get Case Insensitive Python SET (6 answers) How do I do a case-insensitive string comparison? (9 answers) Closed 2 years ago . I have the following script to import and export random TXT/CSV files from CLI, everything that passes has to be unique and case insensitive output in UTF-8, can I accomplish this with a set variable? I'm quite new to Python so every comment or suggestion is welcome! This is my current script; import hashlib import sys

问题 I'm tasked with building a consumer of an API that requires an encrypted token with a seed value that is the UNIX time. The example I was shown was implemented using Java which I'm unfamiliar with, and after reading through documentation and other stack articles have been unable to find a solution. Using the javax.crypto.SecretKey , javax.crypto.SecretKeyFactory , javax.crypto.spec.PBEKeySpec , and javax.crypto.spec.SecretKeySpec protocols, I need to generate a token similar to the below:

问题 I'm struggling to fully understand how encryption works and is coded, particularly with python. I'm just trying to get the basics down and create code in the simplest form. I'm going to be passing a userID between two different sites, but obviously I need this to be encrypted with a private key so Website2 knows it came from Website1. This seems to be the code for me: http://docs.python.org/library/hashlib.html#module-hashlib, but it doesn't have very good examples (or maybe I'm in the wrong

问题 Don't really know what's going on here, I need to deploy my flask app on elastic beanstalk but somehow changed the path and can't run python application.py anymore [dotnet --info] .NET Core SDK (reflecting any global.json): Version: 2.1.701 Commit: 8cf7278aa1 Runtime Environment: OS Name: Mac OS X OS Version: 10.14 OS Platform: Darwin RID: osx.10.14-x64 Base Path: /usr/local/share/dotnet/sdk/2.1.701/ Host (useful for support): Version: 2.1.12 Commit: ccea2e606d [brew -v] Homebrew 2.2.0

问题 I needed a simple hash function for passwords and thought I could use hashlib . PyCharm suggested to install it by running pip install hashLib . But now PyCharm is complaining about a syntax error in the library: Collecting hashLib Using cached https://files.pythonhosted.org/packages/74/bb/9003d081345e9f0451884146e9ea2cff6e4cc4deac9ffd4a9ee98b318a49/hashlib-20081119.zip Complete output from command python setup.py egg_info: Traceback (most recent call last): File "<string>", line 1, in

问题 I want to compare hashes of two files. But no matter if files are different or not, even with different hashes comparison results True Here is the code: import hashlib hasher1 = hashlib.md5() afile1 = open('canvas.png', 'rb') buf1 = afile1.read() a = hasher1.update(buf1) print(str(hasher1.hexdigest())) hasher2 = hashlib.md5() afile2 = open('img5.png', 'rb') buf2 = afile2.read() b = hasher2.update(buf2) print(str(hasher2.hexdigest())) print(str(a) == str(b)) The output:

问题 I'd like to create a hashlib instance, update() it, then persist its state in some way. Later, I'd like to recreate the object using this state data, and continue to update() it. Finally, I'd like to get the hexdigest() of the total cumulative run of data. State persistence has to survive across multiple runs. Example: import hashlib m = hashlib.sha1() m.update('one') m.update('two') # somehow, persist the state of m here #later, possibly in another process # recreate m from the persisted

问题 I'm writing a p2p application in Python and am using the hashlib module to identify files with the same contents but different names within the network. The thing is that I tested the code that does the hash for the files in Windows (Vista), with Python 2.7 and it's very fast (less than a second, for a couple of gigabytes). So, in Linux (Fedora 12, with Python 2.6.2 and Python 2.7.1 compiled by myself because I haven't found a rpm with yum) is so much slower, almost a minute for files less