pycrypto

AES - Encryption with Crypto (node-js) / decryption with Pycrypto (python)

由 别说谁变了你拦得住时间么 提交于 2019-11-27 01:07:57
问题 I'm writing this question + answer because I struggled a lot (maybe because of a lack of experience), got lost in many different ways of encrypting/decrypting things with node or python. I thought maybe my case could help people in the future. What I needed to do: Get data from a form, encrypt them using Crypto (node-js) Pass the encrypted data in Python and decrypt it using PyCrypto. I chose to use the AES encryption. Here is how I started (I'm not gonna go through everything I tried): I

Microsoft Windows Python-3.6 PyCrypto installation error

由 时间秒杀一切 提交于 2019-11-27 00:31:07
pip install pycrypto works fine with python3.5.2 but fails wiht python3.6 with the following error: inttypes.h(26): error C2061: syntax error: identifier 'intmax_t' The file include\pyport.h in Python installation directory does not have #include < stdint.h > anymore. This leaves intmax_t undefined. A workaround for Microsoft VC compiler is to force include stdint.h via OS environment variable CL : Open command prompt Setup VC environment by runing vcvars*.bat (choose file name depending on VC version and architecture) set CL=-FI"Full-Path\stdint.h" (use real value for Full-Path for the

PyCrypto problem using AES+CTR

由 房东的猫 提交于 2019-11-26 23:21:57
问题 I'm writing a piece of code to encrypt a text using symmetric encryption. But it's not coming back with the right result... from Crypto.Cipher import AES import os crypto = AES.new(os.urandom(32), AES.MODE_CTR, counter = lambda : os.urandom(16)) encrypted = crypto.encrypt("aaaaaaaaaaaaaaaa") print crypto.decrypt(encrypted) Here, the decrypted text is different from the original. I don't really understand much about cryptography so please bear with me. I understand the CTR mode requires a

Pip error: Microsoft Visual C++ 14.0 is required

由 荒凉一梦 提交于 2019-11-26 22:53:03
I just ran the "pip install -U steem"-command and the installation worked well until it failed to install pycrypto. Afterwards I did the "pip install cryptography" command because I thought it was the missing package. So my question is, how I can install steem without the pycrypto-error (or the pycrypto-package in addition) and how to deinstall the cryptography-Package which I don't need. (I'm using Windows 7 and Python 3) Requirement already up-to-date: python-dateutil in c:\users\***\appdata\lo cal\programs\python\python36\lib\site-packages (from dateparser->maya->steem) Collecting regex

How do I use a X509 certificate with PyCrypto?

由 末鹿安然 提交于 2019-11-26 20:22:21
I want to encrypt some data in python with PyCrypto. However I get an error when using key = RSA.importKey(pubkey) : RSA key format is not supported The key was generated with: openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout mycert.key -out mycert.pem The code is: def encrypt(data): pubkey = open('mycert.pem').read() key = RSA.importKey(pubkey) cipher = PKCS1_OAEP.new(key) return cipher.encrypt(data) PyCrypto does not support X.509 certificates. You must first extract the public key with the command: openssl x509 -inform pem -in mycert.pem -pubkey -noout > publickey.pem Then, you

How to read a RSA public key in PEM + PKCS#1 format

由 不羁岁月 提交于 2019-11-26 19:50:36
问题 I have a RSA public key in PEM format + PKCS#1(I guess): -----BEGIN RSA PUBLIC KEY----- MIGJAoGBAJNrHWRFgWLqgzSmLBq2G89exgi/Jk1NWhbFB9gHc9MLORmP3BOCJS9k onzT/+Dk1hdZf00JGgZeuJGoXK9PX3CIKQKRQRHpi5e1vmOCrmHN5VMOxGO4d+zn JDEbNHODZR4HzsSdpQ9SGMSx7raJJedEIbr0IP6DgnWgiA7R1mUdAgMBAAE= -----END RSA PUBLIC KEY----- I want to get the SHA1 digest of its ASN1 encoded version in Python. The first step should be to read this key, but I failed to do it in PyCrypto: >> from Crypto.PublicKey import RSA >> RSA

Signing and verifying data using pycrypto (RSA)

由 China☆狼群 提交于 2019-11-26 19:03:26
问题 I am trying to familiarize myself with the pycrypto module, but the lack of clear documentation makes things difficult. To start with, I would like to understand signing and verifying data. Could someone please provide an example for how this would be written? 回答1: This is a fleshed-out version of the example in the documentation: import Crypto.Hash.MD5 as MD5 import Crypto.PublicKey.RSA as RSA import Crypto.PublicKey.DSA as DSA import Crypto.PublicKey.ElGamal as ElGamal import Crypto.Util

How to decrypt password from JavaScript CryptoJS.AES.encrypt(password, passphrase) in Python

由 我只是一个虾纸丫 提交于 2019-11-26 17:48:15
问题 I have a password which is encrypt from JavaScript via var password = 'sample' var passphrase ='sample_passphrase' CryptoJS.AES.encrypt(password, passphrase) Then I tried to decrypt the password comes from JavaScript in Python: from Crypto.Cipher import AES import base64 PADDING = '\0' pad_it = lambda s: s+(16 - len(s)%16)*PADDING key = 'sample_passphrase' iv='11.0.0.101' #------> here is my question, how can I get this iv to restore password, what should I put here? key=pad_it(key) #------>

RSA encryption and decryption in Python

由 ≡放荡痞女 提交于 2019-11-26 17:37:26
问题 I need help using RSA encryption and decryption in Python. I am creating a private/public key pair, encrypting a message with keys and writing message to a file. Then I am reading ciphertext from file and decrypting text using key. I am having trouble with the decryption portion. As you can see in my code below, when I put in decrypted = key.decrypt(message) that the program works, yet the decrypted message is encrypted again. It seems like it is not reading the ciphertext from the file. Can

Pip error: Microsoft Visual C++ 14.0 is required

由 点点圈 提交于 2019-11-26 17:28:44
问题 I just ran the "pip install -U steem"-command and the installation worked well until it failed to install pycrypto. Afterwards I did the "pip install cryptography" command because I thought it was the missing package. So my question is, how I can install steem without the pycrypto-error (or the pycrypto-package in addition) and how to deinstall the cryptography-Package which I don't need. (I'm using Windows 7 and Python 3) Requirement already up-to-date: python-dateutil in c:\users\***
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