Re: lug-bg: OpenSource based CA -

2003-10-22 Thread Kaloyan Ivanov 
  -
  ..

 :  7766554443 Ime Prezime Familq

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-
http://mail.e-card.bg

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Re: lug-bg: OpenSource based CA -

2003-10-22 Thread Vesselin Kolev 
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

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Settings - Configure KMail - Composer - Charset

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Keep original charset when replying or forwarding (if possible)

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On Tuesday 21 Oct 2003 20:22,   wrote:
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GGEhWTjq9Te8GUNavJLzQxM=
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-END PGP SIGNATURE-


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Re: lug-bg: OpenSource based CA -

2003-10-22 Thread Vesselin Kolev 
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

On Wednesday 22 Oct 2003 12:38, Kaloyan Ivanov wrote:
  
 -   .  
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  :  7766554443 Ime Prezime Familq

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vUKs12+05CbmBQ5kIHkgLwk=
=SS/P
-END PGP SIGNATURE-


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Re: lug-bg: OpenSource based CA -

2003-10-22 Thread Vesselin Kolev 
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1


 Poslednoto izrechenie ne go razbiram.
 Ot tova, che 20 * 20 = 400, kakvo sledva
 za goleminata na veroyatnostta?

 Pozdravi,
 Minko

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P5zOIGDLEFi9sa5QqHeAk3s=
=RqMi
-END PGP SIGNATURE-


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Re: lug-bg: OpenSource based CA -

2003-10-21 Thread Romeo Ninov 
Vesselin Kolev wrote:

  OpenPGP .
 .,   
   , detached  .  
  key split,   (Shamir (1979) and Blackley (1979))   
   , , PGP Desktop 
PGP FreeWare.. Windows.

===

   ?

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.  - 


--

Regards: Romeo Ninov


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Re: lug-bg: OpenSource based CA -

2003-10-21 Thread Vesselin Kolev 
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1


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-END PGP SIGNATURE-


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Re: lug-bg: OpenSource based CA -

2003-10-21 Thread Romeo Ninov 
Vesselin Kolev wrote:

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

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--

Regards: Romeo Ninov


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Re: lug-bg: OpenSource based CA -

2003-10-21 Thread Georgi Chorbadzhiyski 
Romeo Ninov wrote:
Vesselin Kolev wrote:
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 OpenIntegra  ca.openintegra.com,  .
--
Georgi Chorbadzhiyski
http://georgi.unixsol.org/

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Re: lug-bg: OpenSource based CA -

2003-10-21 Thread Vesselin Kolev 
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1


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WuPhdEjPMRJIGBAdCQCOGgY=
=5aZ6
-END PGP SIGNATURE-


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Re: lug-bg: OpenSource based CA -

2003-10-21 Thread Plamen Tonev 
On Tue, 21 Oct 2003 09:42:01 +0300
Vesselin Kolev [EMAIL PROTECTED] wrote:

 -BEGIN PGP SIGNED MESSAGE-
 Hash: SHA1
 
 
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Da, trjabva samo da se objasni/dokaje che ot hesha ne se poluchavat dannite ;-)

-- 
When did I realize I was God? Well, I was praying and I suddenly 
realized I was talking to myself. 
Peter O'Toole.

---
Public PGP key at: http://pgp.mit.edu 
pub  1024D/98D3363F 2003/08/16 Plamen Tonev (MiCRoPhoBIC) [EMAIL PROTECTED]
Key fingerprint = 5D08 C610 0F09 618E 3515  5C87 0F62 3808 98D3 363F
---


pgp0.pgp
Description: PGP signature

Re: lug-bg: OpenSource based CA -

2003-10-21 Thread Vesselin Kolev 
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1


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0g7rxtBZr5ZEYQg+1P04y3w=
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-END PGP SIGNATURE-


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Re: lug-bg: OpenSource based CA -

2003-10-21 Thread Vesselin Kolev 
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

 
 Da, trjabva samo da se objasni/dokaje che ot hesha ne se poluchavat dannite
 ;-)
 

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i6M6SF6AEiwvZq6y5uOwzaY=
=6Brp
-END PGP SIGNATURE-


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Re: lug-bg: OpenSource based CA -

2003-10-21 Thread Sava Chankov 
Vesselin Kolev wrote:
 
  ?
   ?
--
Sava Chankov,
research and development
http://www.blueboard.biz

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Re: lug-bg: OpenSource based CA -

2003-10-21 Thread Doncho Angelov 
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
!

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!

- --
Doncho A. Angelov
software developer/project manager
OBS BG Ltd. @ http://www.obs.bg
Work: +359 (2) 9715900, Mobile: +359 (98) 485167
* PGP Key ID: 6F124BED at keyserver.bu.edu*
* or http://donangel.h1.ru/personal.html  *
Free Software Association - Bulgaria (http://www.fsa-bg.org) member
- --
This email has been sent with Open Source-d Mozilla Thunderbird.
-BEGIN PGP SIGNATURE-
Version: GnuPG v1.2.3-nr1 (Windows XP)
Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org
iQIVAwUBP5UCrEQi94VvEkvtAQLbhw/+MeVtXNnj92DNs/FV2CEcv1Y622TCXeG0
qGq+nURLc/KEaKDxXTbu7Ze7B15/+C2JZKIIJxeYwibM+E7e+IAccQd9ZjvUqrv7
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3v66nWaWMwH2COlH36dh743F6+WzYnkkVpJDl6Nq6XIP/9ZrpAWC5+i8tbmXiYtA
IItrGRXg18jyxeSHfhonacRecXMh+dzTL7ZtKGbux6mIZKBVI3YBORC3v1VpRvNE
fLLA0HpbcVb01OT6Ul+1X4MNTm7wlAUKoMlcdG//4/mHd49xAIHjlM6LYDoXaEpU
8KMOPvJOjj8TZ/uPLdVgOeNK0vysyMkUhbZqwy7NB89TADKWpuEQS3KCr4x+Cvul
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llYpG5LrK6vtlZX9F9PqZx4uUJAf4fb7i0NBPEpSrsE89RnS4gQHb7Knru+GJdYx
o991piyvHnI=
=HByk
-END PGP SIGNATURE-

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Re: lug-bg: OpenSource based CA -

2003-10-21 Thread Vesselin Kolev 
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

On Tuesday 21 Oct 2003 12:04, Sava Chankov wrote:
 Vesselin Kolev wrote:
  
?

?

 . ,   
  .

 .

MAC - Message Authentication Code --  
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.

MAC.m   k,
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-HMAC. 
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HMAC = MAC ( key_1 , MAC(key_2 , m))

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MAC   HMAC.  
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  SHA12^80   .  MD5 
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Version: GnuPG v1.0.7 (GNU/Linux)

iD8DBQE/lQeS+48lZPXaa+MRAhkkAKC+A6x4MuBPq3M+IzNyN7p1TKtY4QCgoMcg
pRKITxN/YE3Q9etjSKrNGDA=
=bkBE
-END PGP SIGNATURE-


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Re: lug-bg: OpenSource based CA -

2003-10-21 Thread Vesselin Kolev 
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

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On Tuesday 21 Oct 2003 12:55, Doncho Angelov wrote:
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Version: GnuPG v1.0.7 (GNU/Linux)

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HcUufQWGZpUM1RBBPasqPxM=
=rH5b
-END PGP SIGNATURE-


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Re: lug-bg: OpenSource based CA -

2003-10-21 Thread Minko Markov 

--- Sava Chankov [EMAIL PROTECTED] wrote:
 Èìà ëè òåîðèòè÷íà âúçìîæíîñò äà ñå ïîëó÷è êîëèçèÿ â
 ñòîéíîñòèòå íà õåøà?

Absolyutno! Hash-qt e s fiksirana dqlzhina.
Da nyama vqzmozhnost za koliziya ==
funkicyata ot tekstovete kqm hash-stoynostite
tryabva da e inekciya.

E, f-ya ot n neshta kqm k neshta ne
mozhe da e inekciya pri n  k.

Drug e vqprosqt dali broyat na smislenite,
prakticheski vqzmozhni tekstove e po-golyam
ot 2^k...

-- 
MM

[dano yahoo ne opleska kirilicata v citata]



__
Do you Yahoo!?
The New Yahoo! Shopping - with improved product search
http://shopping.yahoo.com

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Re: lug-bg: OpenSource based CA -

2003-10-21 Thread Vesselin Kolev 
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

 
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:

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0vYQ4x53NXdmhMmD9jzjw1U=
=WG7o
-END PGP SIGNATURE-


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Re: lug-bg: OpenSource based CA -

2003-10-21 Thread Sava Chankov 
Vesselin Kolev wrote:
 N ()  m,  Nm
 m,-,  
   2^N.2^m.
 ,2^(N-m)  ,
.   
,{2^(N-m)-1} ,
.
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SHA1,|dom(SHA1)| = 
|range(SHA1)| ?

,


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Re: lug-bg: OpenSource based CA -

2003-10-21 Thread Vesselin Kolev 
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1


 ,  . ,  -  
,
  -(-
,   
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 |range(SHA1)| ?

 ,
 


   .  .

 CA  SHA1  RIPEMD-160.
MD5 . 
,  ,   (  , 
,   , one-way).
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.

,   ,
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,

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   !

   



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QR1BKxqriy8ZKfENwos6NMM=
=8Lhj
-END PGP SIGNATURE-


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Re: lug-bg: OpenSource based CA -

2003-10-21 Thread Peter Georgiev 
  ___ _
 
   :
 
 --
 
  ,   
 sha1sum .   :
 
 7766554433 1234567890 10-20-2003
 
 :
 
 $ echo 7766554433 1234567890 10-20-2003 | sha1sum
 0bba8660427f73f6bd5015e6bf972b38b1fc4465  -
 
   0bba8660427f73f6bd5015e6bf972b38b1fc4465 
 .
 
   
   ()  
 .
 
  ! , 
  . 
   (  , ,  
 ). 

  .   
   .  : ,  ,
,,  
.  
  .

BRGDS 

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Re: lug-bg: OpenSource based CA -

2003-10-21 Thread Vesselin Kolev 
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1


 Potqrsih info s google, no ne namerih otgovor.
 Ne si edinstveniyat, koyto pita tova:

 http://groups.google.com/groups?hl=enlr=ie=UTF-8oe=UTF-8threadm=8ebe52c
6.0303040144.1c20b7ed%40posting.google.comrnum=5prev=/groups%3Fas_q%3Dinje
ctive%2520hash%26safe%3Dimages%26ie%3DUTF-8%26oe%3DUTF-8%26as_ugroup%3Dsci.c
rypt%26lr%3D%26hl%3Den

 Negoviyat vqpros sqdqrzha tvoya (za m=160)
 Faktqt, che ne sa mu otgovorili, e pokazatelen...

:).

 .  AES - American
Encryption Standard,  
  HASH. ( 
  ).

  
. ,   , 
(   MAC  HMAC)

. 
  . ..   
 SHA-1 ( 
   RIPE  RIPEMD-128  RIPEMD-160,   
).

.,
 ,  AES, NIST   
   
,  
  .,  
 , 
. ,  SHA-1 (SHA-160)  SHS 
(Secure Hash Standard)NIST   
 FIPS 180-1.

  
 :

P.C. van Oorschot and M.J. Wiener, Parallel Collision Search with 
Cryptanalytic Applications, Journal of Cryptology, Vol 12, Number 1, 1999, 
Pages 1-28

 .  
 
  :

http://linux.lcpe.uni-sofia.bg/crypto/papers/pdf/pcs.pdf

  ,  copyright
 , ..

  ,  birthday surpise,
.  
   . 20   
  
 365  ().
 20x2=400360,  
  ().

(   
 ),  Boaz Tsaban,
 :

http://arxiv.org/pdf/math.NA/0304028

  ,  - 
.

  
 
-BEGIN PGP SIGNATURE-
Version: GnuPG v1.0.7 (GNU/Linux)

iD8DBQE/lVd3+48lZPXaa+MRAgPUAJ4vyHFtNE/UN7nJHpHRC8tM3YRmeACgztjQ
7pgqq2v6AxgPgsdyz6p+Xb8=
=NB0Y
-END PGP SIGNATURE-


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Re: lug-bg: OpenSource based CA -

2003-10-21 Thread 
,   ,UTF8 , ,
   windows-1251 , ...
,:

: Vesselin Kolev [EMAIL PROTECTED]
Organization:  Laboratory of Chemical Physics  Engineering, University
of Sofia, Bulgaria
: [EMAIL PROTECTED]
: Re: lug-bg: OpenSource based CA -
: Tue, 21 Oct 2003 18:57:37 +0300
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   , ,   Kmail,  
  ...

 , 2003-10-21  18:57, Vesselin Kolev :
 -BEGIN PGP SIGNED MESSAGE-
 Hash: SHA1
 
 
  Potqrsih info s google, no ne namerih otgovor.
...


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Re: lug-bg: OpenSource based CA -

2003-10-21 Thread Minko Markov 
mozhe bi tova stava prekaleno off-topic,
no ponezhe zapochna tuk...

--- Vesselin Kolev [EMAIL PROTECTED] wrote:

 Îòíîñíî òåîðèÿòà íà õåø ôóíêöèèòå íÿìà åäèííà è
 ñòðîãà òåîðèÿ çà
 îöåíêà íà ðåçèñòåíòíîñòòà êúì êîëèçèè.

Ot tova, koeto sqm chel: tova ponyatie
ne se li otnasya za neizbezhnite kolizii,
t.e. kogato se govori za input s neogranichena
golemina?

 Ò.å. íèêîé ñ ïúëíà ñèãóðíîñò
 íå ìîæå 
 êîëè÷åñòâåíî äà îöåíè ðåçèñòåíòíîñòòà íà SHA-1

Vqprosqt na Sava (ako gresha za imeto, sqzhalyavam)
beshe za tova, kakvo e polozhenieto,
kogato domain-a = range-a na funkciyata.

Tova e ednobitov otgovor, ili ima pone
edna koliziya, ili nyama. Dali nyakoy
znae tozi otgovor e drug vqpros :)

Ako domain = range, tova e permutaciya.
Sqs sigurnost ima permutacii, koito
nyamat kolizii v tozi smisql, a imenno,
tezi, chiito (orientirani) grafi sa
edin ili poveche cikqla bez primki.

 Âñå ïàê çà ðåçèñòåíòíîñòòà êúì êîëèçèè å õóáàâî äà
 ñå ïðî÷åòå
 òàçè ñòàòèÿ:
...

http://linux.lcpe.uni-sofia.bg/crypto/papers/pdf/pcs.pdf

Interesno, blagodarya. Na pqrvo chetene (po
diagonalnata sistema) ne razbrah otkqde sa
ubedeni, che shte ima takava rho-figura.
Ako grafqt na funkciyata e m-vo cikli bez
primki, vse edno rho-tata sa bez opashki...

Àêî èìàìå ãðóïà îò
 20 äóøè òî èìà
 âåðîÿòíîñò äâàìà îò òÿõ äà èìàò ðîæäåí äåí â åäèí è
 ñúùè äåí íà ãîäèíàòà
 îò 365 äíè (åäíîâðåìåíèÿ ðîæäåí äåí å èìåííî
 êîëèçèÿòà íà õåø ôóíêöèÿòà).
 Äîêîëêîòî 20x2=400 å ïîâå÷å îò 360, òî èìàìå ãîëÿì
 øàíñ çà åäíîâðåìåíåí
 ðîæäåí äåí (êîëèçèÿ).

Dokolkoto znam ot Knuth, birthday paradox
se sqstoi v tova, che za iznenadvashto
malko hora, imenno 23, veroyatnostta e  1/2.
Za 20 e vse oshte po-malka ot 1/2.

Poslednoto izrechenie ne go razbiram.
Ot tova, che 20 * 20 = 400, kakvo sledva
za goleminata na veroyatnostta?

Pozdravi,
Minko

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lug-bg: OpenSource based CA -

2003-10-20 Thread Vesselin Kolev 
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

  .
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 .

   CA  . 
 X.509 PKI,  PKI 
 OpenPGP. , 

 .

 CA

http://ca.openintegra.com/certs. 

 
   
 (DER), Internet Explorer:

http://ca.openintegra.com/certs/Bin-IE

Base64,   
   UNIX:

http://ca.openintegra.com/certs/Base64

OpenPGP  ( Base64).

===

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SHA1.,  
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  :

--

 ,   
sha1sum .   :

7766554433 1234567890 10-20-2003

:

$ echo 7766554433 1234567890 10-20-2003 | sha1sum
0bba8660427f73f6bd5015e6bf972b38b1fc4465  -

  0bba8660427f73f6bd5015e6bf972b38b1fc4465 
.

  
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   , , PGP Desktop 
PGP FreeWare.. Windows.

===

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-BEGIN PGP SIGNATURE-
Version: GnuPG v1.0.7 (GNU/Linux)

iD8DBQE/lB0Q+48lZPXaa+MRAvPIAKCRZZIaqgx/ryGIFBLIidXDRXnmhQCeL+8W
oryWPkXyn1WzLXlREINauzM=
=R48k
-END PGP SIGNATURE-


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