More information about SHA2

Amnedge1331 · 03-04-2016 05:02 PM

Hi community,

I would like tu use SHA2 algoritm like here enter an Str (password) then get a Str crypted, but when i try it on esenthel with the method:

Code:

SHA2::Hash SHA2Mem(CPtr data, Int size);

I got an object SHA2::Hash wich contain:

Code:

struct{Byte  b[32];};

struct{UInt  i[ 8];};

struct{ULong l[ 4];};

And I don't know how to deal with this to have my Str cryped final.

Any tips ?

RedcrowProd · 03-04-2016 07:51 PM

like a lot of things i havent start playing with hash atm, so little time and some much to do !

but isnt this what you are looking for ? C Hash& operator()( ); // finalize and get hash result

**Esenthel** · 03-04-2016 11:03 PM

Yes,

SHA2::Hash gives you the hash result.
The hash is just a few bytes.

Is it my understanding you want to display the hash in text format?

If so you can use the TextHexMem function:
TextHexMem(&sha2.hash(), SIZE(sha2.hash()), ..);

Amnedge1331 · 03-05-2016 11:05 AM

Ok I see thank, however I try it and i get a different result from the website of my first post, here is my code:

Code:

Str pass="coucou";

SHA2 hash;

hash.update(pass, SIZE(pass));

finalS=TextHexMem(&hash(), SIZE(hash()));

I try this too but same result:

Code:

Str pass="coucou";

SHA2::Hash hash=SHA2Mem(pass, SIZE(pass));

finalS=TextHexMem(&hash, SIZE(hash));

Result is: d2c5ecdb878dad5a80480d89672d0a7111d70bc8da3e8203be4e169c50ba5415

On the website with "coucou" i get:
110812f67fa1e1f0117f6f3d70241c1a42a7b07711a93c2477cc516d9042f9db

**Esenthel** · 03-05-2016 11:12 AM

Str is 16-bit char, maybe you want to use Str8
Also you need to use pass(), and pass.length()*SIZE(..) as the parameters for sha

Amnedge1331 · 03-06-2016 01:08 AM

Ok but after try this in 16 and 8bit it still wrong, here are my try:

Code:

Str  pass="coucou";

SHA2::Hash hash=SHA2Mem(pass(), SIZE(pass())*pass.length());

Str finalS=TextHexMem(&hash, SIZE(hash));

Code:

Str8  pass="coucou";

SHA2::Hash hash=SHA2Mem(pass(), SIZE(pass())*pass.length());

Str8 finalS=TextHexMem(&hash, SIZE(hash));

Code:

Str  pass="coucou";

SHA2::Hash hash=SHA2Mem(pass(), SIZE(pass)*pass.length());

Str finalS=TextHexMem(&hash, SIZE(hash));

Code:

Str8  pass="coucou";

SHA2::Hash hash=SHA2Mem(pass(), SIZE(pass)*pass.length());

Str8 finalS=TextHexMem(&hash, SIZE(hash));

**Esenthel** · 03-06-2016 02:33 AM

SIZE needs to be SIZE(*pass())

Code:

Str8 pass="coucou";

SHA2::Hash hash=SHA2Mem(pass(), SIZE(*pass())*pass.length());

Str finalS=TextHexMem(&hash, SIZE(hash));

Amnedge1331 · 03-06-2016 03:18 PM

Ok nice thank you a lot, not easy to understand it pfft

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