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New Post: AES 256? Also, is there a password length Limit?

adriancs — Fri, 17 May 2013 04:41:44 GMT

It is AES 256.
http://stackoverflow.com/questions/281158/rijndaelmanaged-supports-128-256-bit-key-what-key-size-the-default-constructor

New Post: AES 256? Also, is there a password length Limit?

adriancs — Sun, 21 Apr 2013 01:46:56 GMT

However, this software does not only use AES algorithm.
Before the text is sent to AES encryption, it is first encrypted by CTI2 encryption, which is my own creation of encryption algorithm.

To Encrypt: Text > CTI2 > AES128 + SHA512(Password) > Encrypted Text

To Decrypt: Encrypted Text > AES128 + SHA512(Password) > CTI2 > Original Text

New Post: AES 256? Also, is there a password length Limit?

adriancs — Thu, 18 Apr 2013 23:41:09 GMT

Hi, the key size used by this encryption is 128 (AES 128)

New Post: AES 256? Also, is there a password length Limit?

ssl378 — Tue, 16 Apr 2013 17:44:02 GMT

Thanks for the reply.

Also, does it use AES 256?

New Post: AES 256? Also, is there a password length Limit?

adriancs — Mon, 25 Mar 2013 13:45:02 GMT

Hi, sorry for the late reply.

Current password length limit is 32767 characters, including white space.

Each of the textbox of password can be filled by 32767 characters.

New Post: AES 256? Also, is there a password length Limit?

ssl378 — Tue, 12 Mar 2013 01:11:55 GMT

I like the app. It's the best open source implementation of the idea I've seen yet, and I've tested 3 or 4. Question though, are you using AES 256 for the encryption? Also, what is the limit on password length?

There were a few apps that worked great but had 8 character limits, which is no good for more secure needs.

Thanks for the reply!

New Post: Drag and drop

reviewing — Mon, 21 Jan 2013 15:40:11 GMT

It would be awesome if you implement a Drag and Drop option of a text file onto the program icon.......

New Post: Drag and drop

adriancs — Sun, 20 Jan 2013 00:47:46 GMT

I see. Good suggestion thought.

will try to implement it.

New Post: Drag and drop

reviewing — Sun, 20 Jan 2013 00:46:05 GMT

adriancs wrote:

You mean select text at somewhere else and then drag it into the text area?

good idea. This will be implemented.

thanks for suggestion.

You're welcome.

However I actually meant dragging a text file into the text area and then drop it.

New Post: Drag and drop

adriancs — Sat, 19 Jan 2013 15:15:26 GMT

You mean select text at somewhere else and then drag it into the text area?

good idea. This will be implemented.

thanks for suggestion.

New Post: Drag and drop

reviewing — Sat, 19 Jan 2013 15:12:51 GMT

Hi Adrianics,

Thank you for your excellent app.

My question is whether it is possible to create a drag and drop feature?

That would really increase the value of this program in my opinion.

Kind regards,

Rob

New Post: Encryption method used?

adriancs — Mon, 14 Jan 2013 12:20:20 GMT

hi, you're welcome. and glad that you like the software. Thanks.

New Post: Encryption method used?

rogerrabbit — Mon, 14 Jan 2013 11:18:11 GMT

Hi,

Thank you very much for going to the trouble of providing such a clear explanation - that is really helpful.

Thanks too for the excellent software!

Roger

New Post: Encryption method used?

adriancs — Mon, 14 Jan 2013 00:51:40 GMT

Hi, it is a combination.

AES Encryption encrypt the source data with a key.

AES_Encrypt(Source Data , Key) = Encrypted Data

Key, in other words, is called password.

Example 1:

Key 1 = AA

Key 2 = A

Source Text = "abcd";

Example 2:

Key 1 = A

Key 2 = AA

Source Text = "abcd";

In the encryption process,

AES_Encrypt(Source Text , (Key 1 + Key 2)) = Encryption Result

then i would be

Example 1:

AES_Encrypt(abcd , (AA + A))

Example 2:

AES_Encrypt(abcd , (A + AA))

Result of Example 1 and Example 2 will be same.

But, if the key is Hashed with SHA512,

Key 1 [A] will become

21B4F4BD9E64ED355C3EB676A28EBEDAF6D8F17BDC365995B319097153044080516BD083BFCCE66121A3072646994C8430CC382B8DC543E84880183BF856CFF5

and Key 2 [AA] will become

282154720ABD4FA76AD7CD5F8806AA8A19AEFB6D10042B0D57A311B86087DE4DE3186A92019D6EE51035106EE088DC6007BEB7BE46994D1463999968FBE9760E

therefore, there will a large difference between Example 1 and Example 2.

So basically, the formula will be something like this:

Result = AES_Encrypt( source text , ( SHA512(Key1) + SHA512(Key2) ) )

You can try to perform a SHA512 hash of any text at here: http://www.convertstring.com/Hash/SHA512

You can also do online AES Encryption here: http://www.everpassword.com/aes-encryptor

New Post: Encryption method used?

rogerrabbit — Sun, 13 Jan 2013 15:40:42 GMT

Hi,

I saw this software on Snapfiles today and it works really well and seems to be just what I'm looking for.

It is not clear to me though what encryption method is used. In the documentation it states in the entry 27 September 2011 (2.0 Beta) "Encryption process strengthen with Rijndael Algorithm (AES)". But in the entry 07 October 2011 (2.2) it states "All keys will be hashed by SHA512".

Forgive my ignorance as this is a bit too technical for me and I haven't found the answer through Googling - if its using SHA512 to encrypt does that mean it is no longer using AES?

Thanks.

Roger

New Post: unable to download

sulasno — Tue, 11 Oct 2011 01:06:18 GMT

your site is now working

I downloaded it here
http://www.freewarefiles.com/CTI-Text-Encryption_program_71684.html

On Tue, Oct 11, 2011 at 7:44 AM, adriancs <notifications@codeplex.com> wrote:

From: adriancs

This is strange. I have tried using different computers and is able to download. By the way, may I know where/ which site do you download this copy of software?

Read the full discussion online.

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New Post: unable to download

adriancs — Tue, 11 Oct 2011 00:44:40 GMT

This is strange. I have tried using different computers and is able to download. What do you see after click on the link?

By the way, may I know where/ which site do you download this copy of software?

New Post: unable to download

sulasno — Mon, 10 Oct 2011 11:30:18 GMT

there is no pop window after clicking on the link;
nevertheless I managed to download from another site offering freeware

thanks

On Mon, Oct 10, 2011 at 1:59 PM, adriancs <notifications@codeplex.com> wrote:

From: adriancs

After you click on the first link, a License Agreement will pop out. You have to press "I Agree", to begin download.

Read the full discussion online.

To add a post to this discussion, reply to this email (ctiencrypt@discussions.codeplex.com)

To start a new discussion for this project, email ctiencrypt@discussions.codeplex.com

You are receiving this email because you subscribed to this discussion on CodePlex. You can unsubscribe on CodePlex.com.

Please note: Images and attachments will be removed from emails. Any posts to this discussion will also be available online at CodePlex.com

New Post: unable to download

adriancs — Mon, 10 Oct 2011 06:59:31 GMT

After you click on the first link, a License Agreement will pop out. You have to press "I Agree", to begin download.

New Post: unable to download

sulasno — Sun, 09 Oct 2011 03:04:28 GMT

the first link does not download any file (tested with Firefox, Chrome and IE)
second link brings me to the first link

On Sun, Oct 9, 2011 at 9:46 AM, adriancs <notifications@codeplex.com> wrote:

From: adriancs

Hi, I have try again on the link, and the link is working. You can try again with this link : http://ctiencrypt.codeplex.com/releases/74466/download/289253 or http://ctiencrypt.codeplex.com/releases