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diff --git a/pipermail/pycrypto/2009q4/000132.html b/pipermail/pycrypto/2009q4/000132.html new file mode 100644 index 0000000..96dfca5 --- /dev/null +++ b/pipermail/pycrypto/2009q4/000132.html @@ -0,0 +1,113 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> +<HTML> + <HEAD> + <TITLE> [pycrypto] AES decrypting issues + </TITLE> + <LINK REL="Index" HREF="index.html" > + <LINK REL="made" HREF="mailto:pycrypto%40lists.dlitz.net?Subject=%5Bpycrypto%5D%20AES%20decrypting%20issues&In-Reply-To=4ACCBC96.2000607%40co.marshall.ia.us"> + <META NAME="robots" CONTENT="index,nofollow"> + <META http-equiv="Content-Type" content="text/html; charset=us-ascii"> + <LINK REL="Previous" HREF="000131.html"> + <LINK REL="Next" HREF="000133.html"> + </HEAD> + <BODY BGCOLOR="#ffffff"> + <H1>[pycrypto] AES decrypting issues</H1> + <B>Luke Teyssier</B> + <A HREF="mailto:pycrypto%40lists.dlitz.net?Subject=%5Bpycrypto%5D%20AES%20decrypting%20issues&In-Reply-To=4ACCBC96.2000607%40co.marshall.ia.us" + TITLE="[pycrypto] AES decrypting issues">luke at cryptography.com + </A><BR> + <I>Wed Oct 7 11:09:12 CST 2009</I> + <P><UL> + <LI>Previous message: <A HREF="000131.html">[pycrypto] AES decrypting issues +</A></li> + <LI>Next message: <A HREF="000133.html">[pycrypto] AES decrypting issues +</A></li> + <LI> <B>Messages sorted by:</B> + <a href="date.html#132">[ date ]</a> + <a href="thread.html#132">[ thread ]</a> + <a href="subject.html#132">[ subject ]</a> + <a href="author.html#132">[ author ]</a> + </LI> + </UL> + <HR> +<!--beginarticle--> +<PRE>Does it decrypt with the PHP example? + +You might try encrypting/decrypting an example with Python, then +decrypting the encrypted example with PHP to make sure you have the +right configuration settings. + +It's also possible that the data was corrupted. Is there any kind of +integrity check for the file? + +Luke + +Mike Driscoll wrote: +><i> Hi, +</I>><i> +</I>><i> I am working on a project where I need to decrypt some data that has +</I>><i> been encrypted with AES. Our webmaster gave me a PHP example that he +</I>><i> uses, but I'm supposed to use Python. Here's the PHP code: +</I>><i> +</I>><i> $iv_size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB); +</I>><i> $iv = mcrypt_create_iv($iv_size, MCRYPT_RAND); +</I>><i> return rtrim(mcrypt_decrypt(MCRYPT_RIJNDAEL_256, $key, +</I>><i> $data,MCRYPT_MODE_ECB, $iv),"\0"); +</I>><i> +</I>><i> I've been told on c.l.py that the iv in this case should be 16 bytes. +</I>><i> +</I>><i> I tried following the example on this blog by modifying it as needed: +</I>><i> +</I>><i> <A HREF="http://www.codekoala.com/blog/2009/aes-encryption-python-using-pycrypto/">http://www.codekoala.com/blog/2009/aes-encryption-python-using-pycrypto/</A> +</I>><i> +</I>><i> But no matter which base64 decode method I use, I get some kind of +</I>><i> error: b32decode, b64decode and decodestring all return a padding error +</I>><i> whereas b16decode claims that I don't have only 16-bit characters in my +</I>><i> data string. +</I>><i> +</I>><i> I've never done this before, so I'm not sure where I'm going wrong. Any +</I>><i> advice would be appreciated. I'm on Windows XP with Python 2.5. +</I>><i> +</I>><i> Thanks, +</I>><i> +</I>><i> Mike +</I>><i> +</I>><i> _______________________________________________ +</I>><i> pycrypto mailing list +</I>><i> <A HREF="http://lists.dlitz.net/cgi-bin/mailman/listinfo/pycrypto">pycrypto at lists.dlitz.net</A> +</I>><i> <A HREF="http://lists.dlitz.net/cgi-bin/mailman/listinfo/pycrypto">http://lists.dlitz.net/cgi-bin/mailman/listinfo/pycrypto</A> +</I>><i> +</I>><i> +</I> +-- +Luke Teyssier +Senior Staff Engineer +Cryptography Research, Inc. +575 Market St., 11th Floor +San Francisco, CA 94105 +(415) 397-0123 x330 Direct +<A HREF="http://www.cryptography.com">http://www.cryptography.com</A> + +</PRE> + + +<!--endarticle--> + <HR> + <P><UL> + <!--threads--> + <LI>Previous message: <A HREF="000131.html">[pycrypto] AES decrypting issues +</A></li> + <LI>Next message: <A HREF="000133.html">[pycrypto] AES decrypting issues +</A></li> + <LI> <B>Messages sorted by:</B> + <a href="date.html#132">[ date ]</a> + <a href="thread.html#132">[ thread ]</a> + <a href="subject.html#132">[ subject ]</a> + <a href="author.html#132">[ author ]</a> + </LI> + </UL> + +<hr> +<a href="http://lists.dlitz.net/cgi-bin/mailman/listinfo/pycrypto">More information about the pycrypto +mailing list</a><br> +</body></html> |