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Python Crypto Singature do not support Android???

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  Python Crypto Singature do not support Android??? Frank Liou <fk26541598fk@gmail.com> - 2014-09-05 00:02 -0700
    Re: Python Crypto Singature do not support Android??? Chris Angelico <rosuav@gmail.com> - 2014-09-05 17:11 +1000
    Re: Python Crypto Singature do not support Android??? Frank Liou <fk26541598fk@gmail.com> - 2014-09-05 00:23 -0700
      Re: Python Crypto Singature do not support Android??? Chris Angelico <rosuav@gmail.com> - 2014-09-05 17:47 +1000

#77577 — Python Crypto Singature do not support Android???

I use Privatekey sign a signature by android 

and then send to python 

python can't use public key to verify

and 

python signature result all is number

but 

android is number and english words

is that no support??

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#77578

On Fri, Sep 5, 2014 at 5:02 PM, Frank Liou <fk26541598fk@gmail.com> wrote:
> I use Privatekey sign a signature by android
>
> and then send to python
>
> python can't use public key to verify
>
> and
>
> python signature result all is number
>
> but
>
> android is number and english words
>
> is that no support??

It would help if you showed us (a) the code, (b) the two different
results, and (c) what you're expecting to see.

ChrisA

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#77579

Sorry!!

here is my code

python :

msg = '123'
msg = msg.encode('utf-8')
digest = SHA.new(msg).digest()
signature = APP_key_Private.sign(digest, '')

signature like: (3313609575189770456309776952388055366479183814159935747487353823698464644111856144652004406811762087026328804664486509214841694613481763164909855307029962363047099944520695429504224843583313164533334332743470132105629096577439312314814238554088472504815623363978006284897433036223490623530076474911740732410,)


and android :

InputStream inPrivate = getResources().getAssets().open("PR1.pem");
PrivateKey privateKey = RSAUtils.loadPrivateKey(inPrivate);
Log.d("privateKey------",privateKey.toString());

 byte[] a = Sign.digest("123".getBytes());
  String test_a_to64  = Base64.encodeToString(a,Base64.DEFAULT);
  Log.d("XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX------",test_a_to64);
  Log.d("sdfgserthwrthhsrethwegerg------",Arrays.toString(a));

String sdf = Sign.sign(a,privateKey);
 Log.d("000000000000000000000------",Arrays.toString(sdf.getBytes()));

Android like:


[34, 68, 28, 72, -43, 7, -64, -127, -119, -44, 61, -53, -22, 112, -74, -122, -19, -127, -120, -43, 1, -55, 66, -47, -63, -128, 104, -97, 104, 65, -48, -120, -50, 117, 85, 86, -33, 37, -77, -26, -46, -59, -43, -42, -79, -9, -78, -26, -25, 5, 4, -104, 95, -120, -73, 123, 70, -11, 56, -10, -99, -126, -30, -3, -63, 42, 45, 33, 36, 23, -52, 10, -4, -17, 8, 82, -61, 74, 43, -5, 44, 29, 127, 78, 100, -88, -24, -61, -24, 3, -105, 4, 117, 71, 41, 74, 99, 23, 68, 112, -8, -105, 67, -68, -115, -27, -24, 114, -108, 28, 15, -85, -77, 49, -110, -10, -83, -58, -27, 34, 90, -52, 71, -72, 73, -5, -2, -56]



please help

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#77581

On Fri, Sep 5, 2014 at 5:23 PM, Frank Liou <fk26541598fk@gmail.com> wrote:
> here is my code
>
> python :
>
> msg = '123'
> msg = msg.encode('utf-8')
> digest = SHA.new(msg).digest()
> signature = APP_key_Private.sign(digest, '')

That code is incomplete, I can't run it. Ditto your Java code. But
what seems to be happening is that you're getting data back in two
very different formats, plus you're generating one signature based on
a UTF-8 stream and one based on a Base-64 stream. Start by writing
*simple* code that does what you want, and then porting that to the
other language exactly.

Also, please don't use Google Groups, or if you must, please remember
to include context.

ChrisA

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