U++ framework: UppHub » Encrypted storage with streaming (OpenSSL, AES)

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Re: Encrypted storage with streaming (OpenSSL, AES) [message #25770 is a reply to message #25767]

Thu, 11 March 2010 09:12

koldo
Messages: 3464
Registered: August 2008

Senior Veteran

kohait00 wrote on Wed, 10 March 2010 22:36

http://www.winzip.com/aes_info.htm
should explain that its not trivial Smile

Hello Kohait00

Thank you for the reference. I will use it.

Coming to the issue, look at this:

- If it is open source, I cannot put the key in the code

- If the program creates a key for the user, and he/she is not let to change it, a 32 bytes password seems too hard to use

- If we use a user defined key, we could include in AESStream:

---1. A SHA 256 possibility to convert user password in a 32 bytes key
---2. The means to avoid a brute force attack.
For example, if AES 256 with a weak user key can resist within and acceptable probability, for example, 1000000 random keys, AESStream could let the main program to enter, for example, 1000 keys per day and after that, AESStream would refuse any additional key.

Best regards
Iñaki

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[Message index]

		Encrypted storage with streaming (OpenSSL, AES) By: Mindtraveller on Wed, 16 September 2009 22:17
		Re: Encrypted storage with streaming (OpenSSL, AES) By: koldo on Thu, 17 September 2009 09:34
		Re: Encrypted storage with streaming (OpenSSL, AES) By: Weras on Thu, 17 September 2009 19:57
		Re: Encrypted storage with streaming (OpenSSL, AES) By: koldo on Thu, 17 September 2009 22:55
		Re: Encrypted storage with streaming (OpenSSL, AES) By: Mindtraveller on Fri, 18 September 2009 11:20
		Re: Encrypted storage with streaming (OpenSSL, AES) By: tojocky on Fri, 18 September 2009 12:28
		Re: Encrypted storage with streaming (OpenSSL, AES) By: koldo on Fri, 18 September 2009 13:23
		Re: Encrypted storage with streaming (OpenSSL, AES) By: Mindtraveller on Fri, 18 September 2009 14:01
		Re: Encrypted storage with streaming (OpenSSL, AES) By: koldo on Fri, 18 September 2009 23:01
		Re: Encrypted storage with streaming (OpenSSL, AES) By: kasome on Wed, 23 September 2009 03:29
		Re: Encrypted storage with streaming (OpenSSL, AES) By: koldo on Sat, 20 February 2010 17:08
		Re: Encrypted storage with streaming (OpenSSL, AES) By: Mindtraveller on Sat, 20 February 2010 23:19
		Re: Encrypted storage with streaming (OpenSSL, AES) By: koldo on Sun, 21 February 2010 08:07
		Re: Encrypted storage with streaming (OpenSSL, AES) By: koldo on Sun, 21 February 2010 10:38
		Re: Encrypted storage with streaming (OpenSSL, AES) By: Mindtraveller on Sun, 21 February 2010 12:01
		Re: Encrypted storage with streaming (OpenSSL, AES) By: koldo on Sun, 21 February 2010 15:40
		Re: Encrypted storage with streaming (OpenSSL, AES) By: koldo on Sun, 21 February 2010 16:01
		Re: Encrypted storage with streaming (OpenSSL, AES) By: koldo on Sun, 21 February 2010 19:25
		Re: Encrypted storage with streaming (OpenSSL, AES) By: Mindtraveller on Mon, 22 February 2010 00:48
		Re: Encrypted storage with streaming (OpenSSL, AES) By: koldo on Mon, 22 February 2010 07:54
		Re: Encrypted storage with streaming (OpenSSL, AES) By: Mindtraveller on Mon, 22 February 2010 08:31
		Re: Encrypted storage with streaming (OpenSSL, AES) By: koldo on Mon, 22 February 2010 08:50
		Re: Encrypted storage with streaming (OpenSSL, AES) By: koldo on Mon, 22 February 2010 11:55
		Re: Encrypted storage with streaming (OpenSSL, AES) By: Mindtraveller on Mon, 22 February 2010 12:24
		Re: Encrypted storage with streaming (OpenSSL, AES) By: koldo on Mon, 22 February 2010 12:46
		Re: Encrypted storage with streaming (OpenSSL, AES) By: tojocky on Mon, 22 February 2010 15:19
		Re: Encrypted storage with streaming (OpenSSL, AES) By: koldo on Mon, 22 February 2010 16:46
		Building with MSC9 By: kohait00 on Wed, 03 March 2010 23:17
		Re: Building with MSC9 By: koldo on Sat, 06 March 2010 01:49
		Re: Building with MSC9 By: kohait00 on Sun, 07 March 2010 11:24
		Re: Building with MSC9 By: koldo on Sun, 07 March 2010 13:47
		Re: Building with MSC9 By: kohait00 on Sun, 07 March 2010 16:08
		Re: Encrypted storage with streaming (OpenSSL, AES) By: koldo on Wed, 10 March 2010 17:09
		Re: Encrypted storage with streaming (OpenSSL, AES) By: kohait00 on Wed, 10 March 2010 20:54
		Re: Encrypted storage with streaming (OpenSSL, AES) By: koldo on Wed, 10 March 2010 21:33
		Re: Encrypted storage with streaming (OpenSSL, AES) By: kohait00 on Wed, 10 March 2010 22:36
		Re: Encrypted storage with streaming (OpenSSL, AES) By: koldo on Thu, 11 March 2010 09:12
		Re: Encrypted storage with streaming (OpenSSL, AES) By: kohait00 on Thu, 11 March 2010 10:29
		Re: Encrypted storage with streaming (OpenSSL, AES) By: Mindtraveller on Thu, 11 March 2010 10:53
		Re: Encrypted storage with streaming (OpenSSL, AES) By: koldo on Thu, 11 March 2010 11:01
		Re: Encrypted storage with streaming (OpenSSL, AES) By: Mindtraveller on Fri, 12 March 2010 21:41
		Re: Encrypted storage with streaming (OpenSSL, AES) By: koldo on Sun, 14 March 2010 15:27
		bazaar: DeEncrypter By: kohait00 on Thu, 05 August 2010 21:09
		Re: bazaar: DeEncrypter By: Mindtraveller on Sat, 07 August 2010 07:14
		Re: bazaar: DeEncrypter By: kohait00 on Sun, 08 August 2010 11:05
		Re: bazaar: DeEncrypter By: Mindtraveller on Tue, 10 August 2010 15:33
		Re: bazaar: DeEncrypter By: kohait00 on Tue, 10 August 2010 15:46
		Re: bazaar: DeEncrypter By: Mindtraveller on Tue, 10 August 2010 21:14
		Re: bazaar: DeEncrypter By: kohait00 on Tue, 10 August 2010 21:42
		Re: bazaar: DeEncrypter By: Mindtraveller on Wed, 11 August 2010 09:43
		Re: bazaar: DeEncrypter By: koldo on Wed, 11 August 2010 15:29
		Re: bazaar: DeEncrypter By: Mindtraveller on Thu, 12 August 2010 10:22
		Re: bazaar: DeEncrypter By: koldo on Thu, 12 August 2010 13:54
		Re: bazaar: DeEncrypter By: kohait00 on Tue, 17 August 2010 15:58
		Re: bazaar: DeEncrypter By: koldo on Fri, 25 February 2011 18:52
		Re: bazaar: DeEncrypter By: Mindtraveller on Thu, 21 April 2011 14:28
		Re: Encrypted storage with streaming (OpenSSL, AES) By: Alboni on Fri, 23 August 2013 01:59

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