Identifying an unknown data encoding? -

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i'm trying understand undocumented api have discovered, , can't past format of data being returned.

here example of when perform get on url i'm looking at:

a+uzl4258wxdnwztlepjnxtdl3tu4hrittw2auwqhuk5c6batsbu/xsqevittcpi7wrw/oxwiblot8+cdtuwbag3mzk3clohkpvi7pwpf7jqcsbjngh+5iv5gb8by2k31kp62sfwz+i8r/3ta6ngrnjb6edob7d0c6f34rtfrrrzsejtiwyxaj5jed3yjy+c

at first thought base64 encoded, gives me gibberish:

echo -n "<above snippet>" | base64 -d ?/???ݝl?c?5vy??????,?8?s?@m t?{r-?*h? ???ֈhoϜv??7?97p?!(???????   &?4h~???i7?jz???g輯???Ʈr[??n?ts?w??f??i?m?f?ix=?%?

when strip url down domain, website cyrillic text. maybe data converted cyrillic somehow?

does data format familiar you?

i'll continue keep trying , report if make progress.

this base64, because of / , + characters.

when decode string using base64, hexdump:

00000000  03 eb 99 2f 8d b9 f3 05  dd 9d 6c ed 94 43 c9 35  |.../......l..c.5| 00000010  7b 5d 97 74 ee e2 14 48  4e d5 b6 01 4c 10 1d 42  |{].t...hn...l..b| 00000020  b9 73 a0 40 4d 20 54 fd  7b 10 11 52 2d b4 2a 48  |.s.@m t.{..r-.*h| 00000030  ef 0a d6 fe 85 d6 88 19  68 4f cf 9c 76 d5 16 05  |........ho..v...| 00000040  a8 37 9b 39 37 70 ba 21  28 fb e2 ec f5 a9 7f b8  |.7.97p.!(.......| 00000050  ea 09 26 e3 34 68 7e e4  8b f9 19 bf 1b cb 69 37  |..&.4h~.......i7| 00000060  d6 4a 7a da c7 f0 67 e8  bc af fd d3 03 a9 c6 ae  |.jz...g.........| 00000070  72 5b e9 e7 4e 07 b7 74  73 a1 77 e1 14 c5 46 ba  |r[..n..ts.w...f.| 00000080  d9 49 e2 6d 89 66 17 00  9e 49 78 3d f2 25 8f 82  |.i.m.f...ix=.%..|

this looks 128 bytes of random data. , whenever call api url again, different string, although starts same few characters.

perhaps should ask maintainers of website how use api. maybe string session id should use in further calls.


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