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<html><head><TITLE>APPLIED CRYPTOGRAPHY, SECOND EDITION: Protocols, Algorithms, and Source Code in C:Still Other Block Ciphers</TITLE>
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<CENTER><B>Applied Cryptography, Second Edition: Protocols,  Algorthms, and Source Code in C (cloth)</B>
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<I>(Publisher: John Wiley & Sons, Inc.)</I>
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Author(s): Bruce Schneier
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ISBN: 0471128457
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Publication Date: 01/01/96
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<!--TITLE=APPLIED CRYPTOGRAPHY, SECOND EDITION: Protocols, Algorithms, and Source Code in C//-->
<!--AUTHOR=Bruce Schneier//-->
<!--PUBLISHER=Wiley Computer Publishing//-->
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<!--PAGES=333-333//-->
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<P><FONT SIZE="+1"><B><I>Cryptanalysis of GOST</I></B></FONT></P>
<P>These are the major differences between DES and GOST.
</P>
<DL>
<DD>&#151; DES has a complicated procedure for generating the subkeys from the keys. GOST has a very simple procedure.
<DD>&#151; DES has a 56-bit key; GOST has a 256-bit key. If you add in the secret S-box permutations, GOST has a total of about 610 bits of secret information.
</DL>
<TABLE WIDTH="100%">
<TH CAPTION ALIGN="CENTER" COLSPAN="16">Table 14.2<BR>GOST S-Boxes
<TR>
<TD COLSPAN="16"><HR>
<TR>
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT" COLSPAN="2"><B><I>S-box 1:</I></B>
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<TD VALIGN="TOP" ALIGN="LEFT">
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<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TR>
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">4
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">10
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">9
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">2
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">13
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">8
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">0
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">14
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">6
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">11
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">1
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">12
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">7
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">15
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">5
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">3
<TR>
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT" COLSPAN="2"><B><I>S-box 2:</I></B>
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TR>
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">14
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">11
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">4
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">12
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">6
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">13
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">15
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">10
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">2
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">3
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">8
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">1
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">0
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">7
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">5
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">9
<TR>
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT" COLSPAN="2"><B><I>S-box 3:</I></B>
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TR>
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">5
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">8
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">1
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">13
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">10
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">3
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">4
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">2
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">14
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">15
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">12
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">7
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">6
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">0
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">9
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">11
<TR>
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT" COLSPAN="2"><B><I>S-box 4:</I></B>
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TR>
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">7
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">13
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">10
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">1
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">0
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">8
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">9
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">15
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">14
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">4
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">6
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">12
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">11
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">2
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">5
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">3
<TR>
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT" COLSPAN="2"><B><I>S-box 5:</I></B>
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TR>
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">6
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">12
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">7
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">1
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">5
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">15
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">13
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">8
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">4
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">10
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">9
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">14
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">0
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">3
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">11
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">2
<TR>
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT" COLSPAN="2"><B><I>S-box 6:</I></B>
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TR>
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">4
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">11
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">10
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">0
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">7
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">2
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">1
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">13
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">3
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">6
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">8
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">5
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">9
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">12
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">15
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">14
<TR>
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT" COLSPAN="2"><B><I>S-box 7:</I></B>
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TR>
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">13
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">11
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">4
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">1
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">3
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">15
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">5
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">9
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">0
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">10
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">14
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">7
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">6
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">8
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">2
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">12
<TR>
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT" COLSPAN="2"><B><I>S-box 8:</I></B>
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TD VALIGN="TOP" ALIGN="LEFT">
<TR>
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">1
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">15
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">13
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">0
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">5
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">7
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">10
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">4
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">9
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">2
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">3
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">14
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">6
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">11
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">8
<TD VALIGN="TOP" ALIGN="LEFT" WIDTH="5%">12
<TR>
<TD COLSPAN="16"><HR>
<TR>
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