pycrypto

问题 When I make a Python string of one character, i.e. txt = "h" and I check its size, I get import sys sys.getsizeof(txt) 34 If one character is 34 bytes, how do I make a String of 16 byes? P.S. I'm playing around with PyCrypto AES, in OFB Mode, which required input of 16 bytes 回答1: getsizeof does not return the actual size of the string but it accounts for additional garbage collector overhead. As shown bellow test starts as an empty string but memory allocated for it is not zero due to reasons

问题 I am working on a project and the cPanel which is provided to me by employer is having python 2.4.3 (too old version). The problem is i need to use pycrypto . So i am importing SHA256 . The problem is here SHA256.py: try: import hashlib hashFactory = hashlib.sha256 except ImportError: from Crypto.Hash import _SHA256 hashFactory = _SHA256 hashlib is not available in python 2.4.3 so it went to import _SHA256 but there is no _SHA256 in Cryto.Hash folder. Is this is bug of pycrypto? or i can not

问题 Is there any way to encode string by public-key? I found two packages, pycrypto and m2crypto. But I can not find how to use them. 回答1: To encode a string using public key: #!/usr/bin/env python from M2Crypto import RSA, X509 x509 = X509.load_cert("recipient_cert.pem") rsa = x509.get_pubkey().get_rsa() print rsa.public_encrypt("your string to encrypt", RSA.pkcs1_oaep_padding) 来源： https://stackoverflow.com/questions/7563732/what-is-the-best-way-to-encode-string-by-public-key-in-python

问题 Closed . This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 6 years ago . I am trying to use a python module for using Mega and it requires me to have pycrypto installed. I tried using both pip and easy_install to install it but I have had no luck. With pip I am getting an error like this post. I followed the link from the answer in that post, but I really have no idea

问题 I am currently having an issue of not being able to decrypt the text provided after encryption. It returns: Key: ﾝƚ!*!ﾞﾫø}Qd`Dﾫd!Þxͦ}ﾰﾐﾡ>'U Unpadded Text: Hello World Padded Text: Hello World Salt: h5eE0b814M Encrypted Text: WxCž~¼!Ò]Cú´=P+ Encrypted Text with Salt: h5eE0b814MWxCž~¼!Ò]Cú´=P+ Key: ﾝƚ!*!ﾞﾫø}Qd`Dﾫd!Þxͦ}ﾰﾐﾡ>'U Unencrypted Text: Where Unencrypted Text: Should be "Unencypted Text: Hello World" Two programs are used in this, one a module and a master. You must run the master to run

问题 I'm developing a website using this JS plugin to encrypt some data and send it to the server: https://github.com/travist/jsencrypt I'm running Python 3 with Django, the problem is I can't decrypt the data on the server. My code is: JS Code: pkey = "-----BEGIN PUBLIC KEY-----\ MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDeVs9mcWUtTgi93/KXMNA/IF7S\ oQcZAmKQueygoDp9XUM3xnxPb/6XNpJQII85Hxbljqs/xuPVtxo5ovyJ+XXIPV8+\ eG6kSDmr2C3NpBUtfoUeADC/1H1jy44T6stBgXGMwTPokhjvSyEbGpkgMGo74Rpq\

问题 Running on a windows machine python 2.7, whenever I try to run my script using the command line I receive the following error. import winrandom ImportError: DLL load failed: The specified module could not be found. But this error does not happen when I run my script through a python IDE 回答1: Make sure your PATH correctly includes your python2.7 and python2.7\Scripts directories. Snippet on settings environment variables (if needed): http://msdn.microsoft.com/en-us/library/ms682653%28v=vs.85

问题 How to load a RSA public key file into a pyCrypto publickey object in python? 回答1: The RSA Class has an importKey method for this: importKey(externKey) Import an RSA key (public or private half). externKey: the RSA key to import, encoded as a string. The key can be in DER (PKCS#1) or in unencrypted PEM format (RFC1421). 来源： https://stackoverflow.com/questions/6011666/rsa-python-publickey-using-pycrypto

问题 I need to generate publickey from a private key without temporary location locally like we do in sshgen.So i use this.Here iam passing my private key as input like this(while executing): python codekey.py "-----BEGIN RSA PRIVATE KEY-----\nMIhhhhhhhhhhhhhhhh......Bidqt/YS3/0giWrtv+rMkJtv8n\nmirJ+16SZodI5gMuknvZG....................n-----END RSA PRIVATE KEY-----" My code (codekey.py): import sys import io from twisted.conch.ssh import keys k = sys.argv[1] rsa = keys.RSA.importKey(k) key = keys

问题 I have been trying to fix an issue but failed countless times. I need to use a method, sign(), and I have the correct library imported, however its still not being recognized. I'm coding in Python and this is what I have that seems important: #importing the library from Crypto.Signature import PKCS1_PSS [...] signer = PKCS1_PSS.new(keypair) sig = PKCS1_PSS.sign(keypair) But the sign() method is the only thing in the entire code from that library that doesn't get recognized: "This inspection