Encryption method used?

Jan 13, 2013 at 2:40 PM


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?





Jan 13, 2013 at 11:51 PM
Edited Jan 14, 2013 at 12:00 AM

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


and Key 2 [AA] will become


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

Jan 14, 2013 at 10:18 AM


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!


Jan 14, 2013 at 11:20 AM
Edited Jan 17, 2013 at 5:14 AM

you're welcome.