<DIV></DIV>

<DIV></DIV>

<DIV><FONT face="Verdana" color="#000080" size="2">Hi,all</FONT></DIV>

<DIV><FONT face="Verdana" color="#000080" size="2">I agree with Tom</FONT></DIV>

<DIV><FONT color="#000080"><FONT color="#000000">#1,</FONT></FONT><FONT color="#000080"><FONT color="#000000">&nbsp;</FONT>it should be 20. </FONT></DIV>

<DIV><FONT color="#000080">For the 10+10*10, the public key to everyone&nbsp;should be same, it should be correct to 10+10=20.</FONT></DIV>

<DIV><FONT color="#000080"></FONT>&nbsp;</DIV>

<DIV><FONT color="#000080"></FONT>&nbsp;</DIV>

<DIV><FONT color="#000080">#2,I am not clear, would some explain in detail?</FONT></DIV>

<DIV><FONT color="#000080">I think intergrity is protected by HASH,&nbsp;authenticicity and non-repudiation&nbsp;are protected by Asymmetric.</FONT></DIV>

<DIV><FONT color="#000080"></FONT>&nbsp;</DIV>

<DIV><FONT color="#000080">Please discuss.</FONT></DIV>

<DIV><FONT color="#000080"></FONT>&nbsp;</DIV>

<DIV><FONT face="Verdana" color="#c0c0c0" size="2">2010-01-20 </FONT></DIV><FONT face="Verdana" color="#000080" size="2">

<HR style="WIDTH: 100px" align="left" color="#b5c4df" SIZE="1">

</FONT>

<DIV><FONT face="Verdana" color="#c0c0c0" size="2"><SPAN>yaling.lu</SPAN> </FONT></DIV>

<DIV><FONT color="#c0c0c0">Sales Engineer, &nbsp;McAfee </FONT><BR></DIV><PRE>在2010-01-20&nbsp;09:32:26，cisspstudy-request@cccure.org&nbsp;写道：

&gt;Send&nbsp;cisspstudy&nbsp;mailing&nbsp;list&nbsp;submissions&nbsp;to

&gt;        cisspstudy@cccure.org

&gt;

&gt;To&nbsp;subscribe&nbsp;or&nbsp;unsubscribe&nbsp;via&nbsp;the&nbsp;World&nbsp;Wide&nbsp;Web,&nbsp;visit

&gt;        http://cccure.org/mailman/listinfo/cisspstudy_cccure.org

&gt;or,&nbsp;via&nbsp;email,&nbsp;send&nbsp;a&nbsp;message&nbsp;with&nbsp;subject&nbsp;or&nbsp;body&nbsp;'help'&nbsp;to

&gt;        cisspstudy-request@cccure.org

&gt;

&gt;You&nbsp;can&nbsp;reach&nbsp;the&nbsp;person&nbsp;managing&nbsp;the&nbsp;list&nbsp;at

&gt;        cisspstudy-owner@cccure.org

&gt;

&gt;When&nbsp;replying,&nbsp;please&nbsp;edit&nbsp;your&nbsp;Subject&nbsp;line&nbsp;so&nbsp;it&nbsp;is&nbsp;more&nbsp;specific

&gt;than&nbsp;"Re:&nbsp;Contents&nbsp;of&nbsp;cisspstudy&nbsp;digest..."

&gt;

&gt;

&gt;Today's&nbsp;Topics:

&gt;

&gt;&nbsp;&nbsp;&nbsp;1.&nbsp;Re:&nbsp;cisspstudy&nbsp;Digest,&nbsp;Vol&nbsp;19,&nbsp;Issue&nbsp;16&nbsp;(Clement&nbsp;Dupuis)

&gt;&nbsp;&nbsp;&nbsp;2.&nbsp;Re:&nbsp;cisspstudy&nbsp;Digest,&nbsp;Vol&nbsp;19,&nbsp;Issue&nbsp;16&nbsp;(gerritsjs)

&gt;

&gt;

&gt;----------------------------------------------------------------------

&gt;

&gt;Message:&nbsp;1

&gt;Date:&nbsp;Tue,&nbsp;19&nbsp;Jan&nbsp;2010&nbsp;19:07:12&nbsp;-0500

&gt;From:&nbsp;Clement&nbsp;Dupuis&nbsp;&lt;clement.dupuis@cccure.com&gt;

&gt;To:&nbsp;The&nbsp;CISSP&nbsp;Study&nbsp;Mailing&nbsp;list&nbsp;&lt;cisspstudy@cccure.org&gt;

&gt;Cc:&nbsp;twitwicki@hannaford.com

&gt;Subject:&nbsp;Re:&nbsp;[Cisspstudy]&nbsp;cisspstudy&nbsp;Digest,&nbsp;Vol&nbsp;19,&nbsp;Issue&nbsp;16

&gt;Message-ID:

&gt;        &lt;959788641001191607v6407a775vbfcc09426cb3ba9e@mail.gmail.com&gt;

&gt;Content-Type:&nbsp;text/plain;&nbsp;charset="iso-8859-1"

&gt;

&gt;Good&nbsp;day,

&gt;

&gt;I&nbsp;agree&nbsp;with&nbsp;Tom&nbsp;that&nbsp;it&nbsp;seems&nbsp;like&nbsp;the&nbsp;questions&nbsp;were&nbsp;definitively&nbsp;not

&gt;vetted&nbsp;properly.

&gt;

&gt;The&nbsp;total&nbsp;number&nbsp;of&nbsp;keys&nbsp;needed&nbsp;for&nbsp;asymmetric&nbsp;is&nbsp;simply&nbsp;total&nbsp;number&nbsp;of

&gt;users&nbsp;multiply&nbsp;by&nbsp;2

&gt;

&gt;10&nbsp;users&nbsp;is&nbsp;20&nbsp;keys&nbsp;that&nbsp;would&nbsp;be&nbsp;created&nbsp;overall.

&gt;

&gt;If&nbsp;it&nbsp;was&nbsp;Symmetric&nbsp;then&nbsp;you&nbsp;would&nbsp;use&nbsp;the&nbsp;formula:&nbsp;total&nbsp;number&nbsp;of&nbsp;users&nbsp;X

&gt;total&nbsp;number&nbsp;of&nbsp;users&nbsp;minus&nbsp;one&nbsp;divided&nbsp;by&nbsp;two.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;10&nbsp;x&nbsp;(10-1)/2&nbsp;which&nbsp;is

&gt;45&nbsp;keys.

&gt;

&gt;For&nbsp;the&nbsp;second&nbsp;question:&nbsp;&nbsp;all&nbsp;the&nbsp;services&nbsp;would&nbsp;be&nbsp;provided&nbsp;using&nbsp;Digital

&gt;Signatures&nbsp;which&nbsp;can&nbsp;only&nbsp;be&nbsp;achieve&nbsp;within&nbsp;asymmetric&nbsp;crypto&nbsp;systems.

&gt;While&nbsp;creating&nbsp;the&nbsp;digital&nbsp;signature&nbsp;the&nbsp;hashing&nbsp;algorithm&nbsp;would&nbsp;be&nbsp;use.

&gt;

&gt;Take&nbsp;care

&gt;

&gt;Clement

&gt;

&gt;

&gt;

&gt;On&nbsp;Tue,&nbsp;Jan&nbsp;19,&nbsp;2010&nbsp;at&nbsp;16:07,&nbsp;Nimal&nbsp;Gunarathna&nbsp;&lt;ng949@yahoo.com&gt;&nbsp;wrote:

&gt;

&gt;&gt;&nbsp;Hi&nbsp;Tom,

&gt;&gt;

&gt;&gt;&nbsp;This&nbsp;question&nbsp;puzzles&nbsp;me..

&gt;&gt;&nbsp;In&nbsp;an&nbsp;asymmetric&nbsp;system&nbsp;how&nbsp;many&nbsp;keys&nbsp;are&nbsp;required&nbsp;for&nbsp;10&nbsp;users&nbsp;to&nbsp;fully

&gt;&gt;&nbsp;communicate?

&gt;&gt;

&gt;&gt;&nbsp;Every&nbsp;user&nbsp;has&nbsp;a&nbsp;one&nbsp;private&nbsp;and&nbsp;a&nbsp;one&nbsp;public&nbsp;key.&nbsp;I&nbsp;can&nbsp;send&nbsp;my&nbsp;same

&gt;&gt;&nbsp;public

&gt;&gt;&nbsp;key&nbsp;to&nbsp;all&nbsp;others.&nbsp;For&nbsp;10&nbsp;people,&nbsp;20&nbsp;keys&nbsp;are&nbsp;needed..&nbsp;I&nbsp;am&nbsp;not&nbsp;sure&nbsp;how

&gt;&gt;&nbsp;110&nbsp;come&nbsp;from?

&gt;&gt;&nbsp;Is&nbsp;this&nbsp;a&nbsp;private&nbsp;com&nbsp;session&nbsp;or&nbsp;just&nbsp;a&nbsp;different&nbsp;comm&nbsp;session&nbsp;with&nbsp;each

&gt;&gt;&nbsp;pair?

&gt;&gt;

&gt;&gt;&nbsp;Thanks,

&gt;&gt;

&gt;&gt;&nbsp;Nimal&nbsp;Gunarathna

&gt;&gt;

&gt;&gt;

&gt;&gt;

&gt;&gt;&nbsp;---&nbsp;On&nbsp;*Tue,&nbsp;1/19/10,&nbsp;cisspstudy-request@cccure.org&nbsp;&lt;

&gt;&gt;&nbsp;cisspstudy-request@cccure.org&gt;*&nbsp;wrote:

&gt;&gt;

&gt;&gt;

&gt;&gt;&nbsp;From:&nbsp;cisspstudy-request@cccure.org&nbsp;&lt;cisspstudy-request@cccure.org&gt;

&gt;&gt;&nbsp;Subject:&nbsp;cisspstudy&nbsp;Digest,&nbsp;Vol&nbsp;19,&nbsp;Issue&nbsp;16

&gt;&gt;&nbsp;To:&nbsp;cisspstudy@cccure.org

&gt;&gt;&nbsp;Date:&nbsp;Tuesday,&nbsp;January&nbsp;19,&nbsp;2010,&nbsp;11:00&nbsp;AM

&gt;&gt;

&gt;&gt;&nbsp;Send&nbsp;cisspstudy&nbsp;mailing&nbsp;list&nbsp;submissions&nbsp;to

&gt;&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;cisspstudy@cccure.org&nbsp;&lt;http://mc/compose?to=cisspstudy@cccure.org&gt;

&gt;&gt;

&gt;&gt;&nbsp;To&nbsp;subscribe&nbsp;or&nbsp;unsubscribe&nbsp;via&nbsp;the&nbsp;World&nbsp;Wide&nbsp;Web,&nbsp;visit

&gt;&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;http://cccure.org/mailman/listinfo/cisspstudy_cccure.org

&gt;&gt;&nbsp;or,&nbsp;via&nbsp;email,&nbsp;send&nbsp;a&nbsp;message&nbsp;with&nbsp;subject&nbsp;or&nbsp;body&nbsp;'help'&nbsp;to

&gt;&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;cisspstudy-request@cccure.org&lt;http://mc/compose?to=cisspstudy-request@cccure.org&gt;

&gt;&gt;

&gt;&gt;&nbsp;You&nbsp;can&nbsp;reach&nbsp;the&nbsp;person&nbsp;managing&nbsp;the&nbsp;list&nbsp;at

&gt;&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;cisspstudy-owner@cccure.org&lt;http://mc/compose?to=cisspstudy-owner@cccure.org&gt;

&gt;&gt;

&gt;&gt;&nbsp;When&nbsp;replying,&nbsp;please&nbsp;edit&nbsp;your&nbsp;Subject&nbsp;line&nbsp;so&nbsp;it&nbsp;is&nbsp;more&nbsp;specific

&gt;&gt;&nbsp;than&nbsp;"Re:&nbsp;Contents&nbsp;of&nbsp;cisspstudy&nbsp;digest..."

&gt;&gt;

&gt;&gt;

&gt;&gt;&nbsp;Today's&nbsp;Topics:

&gt;&gt;

&gt;&gt;&nbsp;&nbsp;&nbsp;&nbsp;1.&nbsp;cisspstudy&nbsp;&nbsp;-&nbsp;Cryptography&nbsp;questions&nbsp;(twitwicki@hannaford.com&lt;http://mc/compose?to=twitwicki@hannaford.com&gt;

&gt;&gt;&nbsp;)

&gt;&gt;&nbsp;&nbsp;&nbsp;&nbsp;2.&nbsp;Re:&nbsp;New&nbsp;to&nbsp;CISSP&nbsp;Cert&nbsp;(Mark&nbsp;Price)

&gt;&gt;&nbsp;&nbsp;&nbsp;&nbsp;3.&nbsp;Re:&nbsp;New&nbsp;to&nbsp;CISSP&nbsp;Cert&nbsp;(jack&nbsp;wang)

&gt;&gt;&nbsp;&nbsp;&nbsp;&nbsp;4.&nbsp;Re:&nbsp;New&nbsp;to&nbsp;CISSP&nbsp;Cert&nbsp;(Jeronimo&nbsp;Zucco)

&gt;&gt;

&gt;&gt;

&gt;&gt;&nbsp;----------------------------------------------------------------------

&gt;&gt;

&gt;&gt;&nbsp;Message:&nbsp;1

&gt;&gt;&nbsp;Date:&nbsp;Mon,&nbsp;18&nbsp;Jan&nbsp;2010&nbsp;14:48:26&nbsp;-0500

&gt;&gt;&nbsp;From:&nbsp;twitwicki@hannaford.com&lt;http://mc/compose?to=twitwicki@hannaford.com&gt;

&gt;&gt;&nbsp;To:&nbsp;cisspstudy@cccure.org&nbsp;&lt;http://mc/compose?to=cisspstudy@cccure.org&gt;

&gt;&gt;&nbsp;Subject:&nbsp;[Cisspstudy]&nbsp;cisspstudy&nbsp;&nbsp;-&nbsp;Cryptography&nbsp;questions

&gt;&gt;&nbsp;Message-ID:

&gt;&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;

&gt;&gt;&nbsp;OF8F407D94.BBDB76DE-ON852576AF.006B4314-852576AF.006CCD97@hannaford.com&lt;http://mc/compose?to=OF8F407D94.BBDB76DE-ON852576AF.006B4314-852576AF.006CCD97@hannaford.com&gt;

&gt;&gt;&nbsp;&gt;

&gt;&gt;

&gt;&gt;&nbsp;Content-Type:&nbsp;text/plain;&nbsp;charset=US-ASCII

&gt;&gt;

&gt;&gt;

&gt;&gt;

&gt;&gt;&nbsp;Hello&nbsp;all,

&gt;&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;I'd&nbsp;like&nbsp;your&nbsp;thoughts&nbsp;on&nbsp;these&nbsp;questions&nbsp;from&nbsp;Michael&nbsp;Gregg's&nbsp;CISSP

&gt;&gt;&nbsp;Practice&nbsp;questions:

&gt;&gt;

&gt;&gt;&nbsp;In&nbsp;an&nbsp;asymmetric&nbsp;system&nbsp;how&nbsp;many&nbsp;keys&nbsp;are&nbsp;required&nbsp;for&nbsp;10&nbsp;users&nbsp;to&nbsp;fully

&gt;&gt;&nbsp;communicate?

&gt;&gt;

&gt;&gt;&nbsp;A.&nbsp;10

&gt;&gt;&nbsp;B.&nbsp;20

&gt;&gt;&nbsp;C.&nbsp;45

&gt;&gt;&nbsp;D&nbsp;110

&gt;&gt;

&gt;&gt;&nbsp;The&nbsp;answer&nbsp;states&nbsp;D.&nbsp;110&nbsp;-&nbsp;&nbsp;"Each&nbsp;user&nbsp;would&nbsp;have&nbsp;his&nbsp;private,&nbsp;phus&nbsp;his

&gt;&gt;&nbsp;public&nbsp;key,&nbsp;plus&nbsp;each&nbsp;of&nbsp;the&nbsp;nine&nbsp;other&nbsp;public&nbsp;keys"

&gt;&gt;&nbsp;Shouldn't&nbsp;the&nbsp;answer&nbsp;be&nbsp;B.&nbsp;20&nbsp;&nbsp;because&nbsp;the&nbsp;public&nbsp;keys&nbsp;is&nbsp;only&nbsp;couned&nbsp;once

&gt;&gt;&nbsp;for&nbsp;each&nbsp;private/public&nbsp;pair?&nbsp;&nbsp;This&nbsp;also&nbsp;seems&nbsp;consistent&nbsp;with&nbsp;the&nbsp;formula

&gt;&gt;&nbsp;for&nbsp;symmetric&nbsp;keys:&nbsp;N(N-1)/2&nbsp;where&nbsp;N&nbsp;is&nbsp;the&nbsp;number&nbsp;of&nbsp;users&nbsp;needing&nbsp;to

&gt;&gt;&nbsp;communicate.&nbsp;&nbsp;In&nbsp;this&nbsp;case&nbsp;the&nbsp;secret&nbsp;key&nbsp;is&nbsp;only&nbsp;counted&nbsp;once&nbsp;even&nbsp;if&nbsp;it's

&gt;&gt;&nbsp;shared&nbsp;between&nbsp;users.

&gt;&gt;

&gt;&gt;

&gt;&gt;&nbsp;Here's&nbsp;another&nbsp;question&nbsp;that&nbsp;has&nbsp;me&nbsp;puzzled:

&gt;&gt;

&gt;&gt;&nbsp;Which&nbsp;cryptographic&nbsp;system&nbsp;can&nbsp;be&nbsp;used&nbsp;for&nbsp;integrity,&nbsp;authenticity&nbsp;and

&gt;&gt;&nbsp;non-repudiation?

&gt;&gt;

&gt;&gt;&nbsp;A.&nbsp;Asymmetric&nbsp;encryption

&gt;&gt;&nbsp;B.&nbsp;Symmetric&nbsp;&nbsp;encryption

&gt;&gt;&nbsp;C.&nbsp;Hashing

&gt;&gt;&nbsp;D.&nbsp;None&nbsp;of&nbsp;the&nbsp;above

&gt;&gt;

&gt;&gt;&nbsp;The&nbsp;answers&nbsp;states&nbsp;A.&nbsp;Asymmetric.&nbsp;&nbsp;Shouldn't&nbsp;the&nbsp;answer&nbsp;be&nbsp;D.&nbsp;None&nbsp;of&nbsp;the

&gt;&gt;&nbsp;above&nbsp;because&nbsp;Hashing&nbsp;is&nbsp;needed&nbsp;for&nbsp;integrity?

&gt;&gt;

&gt;&gt;&nbsp;Your&nbsp;thoughts&nbsp;will&nbsp;be&nbsp;much&nbsp;appreciated.

&gt;&gt;

&gt;&gt;

&gt;&gt;&nbsp;Tom&nbsp;Witwicki,&nbsp;CIPP

&gt;&gt;&nbsp;Director,&nbsp;Information&nbsp;Security

&gt;&gt;&nbsp;Hannaford&nbsp;Bros.&nbsp;Co.

&gt;&gt;&nbsp;207-885-2073

&gt;&gt;

&gt;&gt;&nbsp;Join&nbsp;me&nbsp;on&nbsp;Linkedin!

&gt;&gt;&nbsp;http://www.linkedin.com/in/tomwitwicki

&gt;&gt;

&gt;&gt;

&gt;&gt;

&gt;&gt;

&gt;&gt;

&gt;&gt;

&gt;&gt;

&gt;&gt;&nbsp;------------------------------

&gt;&gt;

&gt;&gt;&nbsp;Message:&nbsp;2

&gt;&gt;&nbsp;Date:&nbsp;Mon,&nbsp;18&nbsp;Jan&nbsp;2010&nbsp;21:47:45&nbsp;+0000

&gt;&gt;&nbsp;From:&nbsp;"Mark&nbsp;Price"&nbsp;&lt;prinext@gmail.com&lt;http://mc/compose?to=prinext@gmail.com&gt;

&gt;&gt;&nbsp;&gt;

&gt;&gt;&nbsp;To:&nbsp;"The&nbsp;CISSP&nbsp;Study&nbsp;Mailing&nbsp;list"&nbsp;&lt;cisspstudy@cccure.org&lt;http://mc/compose?to=cisspstudy@cccure.org&gt;

&gt;&gt;&nbsp;&gt;

&gt;&gt;&nbsp;Subject:&nbsp;Re:&nbsp;[Cisspstudy]&nbsp;New&nbsp;to&nbsp;CISSP&nbsp;Cert

&gt;&gt;&nbsp;Message-ID:

&gt;&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;

&gt;&gt;&nbsp;1180962559-1263851266-cardhu_decombobulator_blackberry.rim.net-147941822-@bda153.bisx.prod.on.blackberry&lt;http://mc/compose?to=1180962559-1263851266-cardhu_decombobulator_blackberry.rim.net-147941822-@bda153.bisx.prod.on.blackberry&gt;

&gt;&gt;&nbsp;&gt;

&gt;&gt;

&gt;&gt;&nbsp;Content-Type:&nbsp;text/plain

&gt;&gt;

&gt;&gt;&nbsp;I&nbsp;have&nbsp;heard&nbsp;each&nbsp;edition&nbsp;is&nbsp;an&nbsp;update&nbsp;of&nbsp;the&nbsp;previous&nbsp;plus&nbsp;more&nbsp;of&nbsp;the

&gt;&gt;&nbsp;latest&nbsp;technology&nbsp;and&nbsp;or&nbsp;standards.

&gt;&gt;&nbsp;I&nbsp;have&nbsp;the&nbsp;4th&nbsp;and&nbsp;the&nbsp;DVD&nbsp;set,&nbsp;they&nbsp;plus&nbsp;cccure.org&nbsp;worked&nbsp;for&nbsp;me.

&gt;&gt;&nbsp;V/r,

&gt;&gt;

&gt;&gt;&nbsp;Mark&nbsp;Price

&gt;&gt;&nbsp;PRINEXT

&gt;&gt;&nbsp;c:240-743-7654

&gt;&gt;&nbsp;mprice@prinext.com&nbsp;&lt;http://mc/compose?to=mprice@prinext.com&gt;

&gt;&gt;&nbsp;www.prinext.com

&gt;&gt;

&gt;&gt;&nbsp;-----Original&nbsp;Message-----

&gt;&gt;&nbsp;From:&nbsp;Cert&nbsp;Prep&nbsp;&lt;bugtraq.mailbox@gmail.com&lt;http://mc/compose?to=bugtraq.mailbox@gmail.com&gt;

&gt;&gt;&nbsp;&gt;

&gt;&gt;&nbsp;Date:&nbsp;Mon,&nbsp;18&nbsp;Jan&nbsp;2010&nbsp;13:22:40

&gt;&gt;&nbsp;To:&nbsp;The&nbsp;CISSP&nbsp;Study&nbsp;Mailing&nbsp;list&lt;cisspstudy@cccure.org&lt;http://mc/compose?to=cisspstudy@cccure.org&gt;

&gt;&gt;&nbsp;&gt;

&gt;&gt;&nbsp;Subject:&nbsp;Re:&nbsp;[Cisspstudy]&nbsp;New&nbsp;to&nbsp;CISSP&nbsp;Cert

&gt;&gt;

&gt;&gt;&nbsp;Thanks&nbsp;Jeronimo.&nbsp;I&nbsp;will&nbsp;listen&nbsp;to&nbsp;it.

&gt;&gt;

&gt;&gt;&nbsp;I&nbsp;have&nbsp;Shon&nbsp;Harris&nbsp;Second&nbsp;Edition&nbsp;which&nbsp;I&nbsp;bought&nbsp;many&nbsp;years&nbsp;back.&nbsp;I

&gt;&gt;&nbsp;have&nbsp;heard&nbsp;that&nbsp;5th&nbsp;edition&nbsp;is&nbsp;about&nbsp;to&nbsp;come.&nbsp;Is&nbsp;it&nbsp;ok&nbsp;to&nbsp;prepare&nbsp;from

&gt;&gt;&nbsp;second&nbsp;edition&nbsp;until&nbsp;5th&nbsp;edition&nbsp;is&nbsp;out?&nbsp;Does&nbsp;anybody&nbsp;know&nbsp;the

&gt;&gt;&nbsp;differences&nbsp;between&nbsp;2nd&nbsp;and&nbsp;4th?&nbsp;I&nbsp;am&nbsp;sure&nbsp;there&nbsp;will&nbsp;be&nbsp;many&nbsp;but&nbsp;are

&gt;&gt;&nbsp;those&nbsp;drastic&nbsp;to&nbsp;the&nbsp;extent&nbsp;that&nbsp;I&nbsp;will&nbsp;have&nbsp;to&nbsp;revise&nbsp;the&nbsp;stuff,

&gt;&gt;&nbsp;which&nbsp;I&nbsp;have&nbsp;already&nbsp;gone&nbsp;through&nbsp;using&nbsp;second&nbsp;edition,&nbsp;from&nbsp;5th

&gt;&gt;&nbsp;edition&nbsp;once&nbsp;it&nbsp;is&nbsp;published?

&gt;&gt;

&gt;&gt;&nbsp;Any&nbsp;help&nbsp;would&nbsp;be&nbsp;appreciated.

&gt;&gt;

&gt;&gt;&nbsp;Thanks.

&gt;&gt;&nbsp;Adam

&gt;&gt;

&gt;&gt;&nbsp;On&nbsp;Mon,&nbsp;Jan&nbsp;18,&nbsp;2010&nbsp;at&nbsp;12:51&nbsp;PM,&nbsp;Jeronimo&nbsp;Zucco&nbsp;&lt;jczucco@gmail.com&lt;http://mc/compose?to=jczucco@gmail.com&gt;&gt;

&gt;&gt;&nbsp;wrote:

&gt;&gt;&nbsp;&gt;&nbsp;2010/1/18&nbsp;Cert&nbsp;Prep&nbsp;&lt;bugtraq.mailbox@gmail.com&lt;http://mc/compose?to=bugtraq.mailbox@gmail.com&gt;

&gt;&gt;&nbsp;&gt;:

&gt;&gt;&nbsp;&gt;&gt;&nbsp;Hi&nbsp;Folks,

&gt;&gt;&nbsp;&gt;&gt;

&gt;&gt;&nbsp;&gt;&gt;&nbsp;I&nbsp;am&nbsp;planning&nbsp;to&nbsp;prepare&nbsp;for&nbsp;CISSP&nbsp;Cert&nbsp;and&nbsp;would&nbsp;like&nbsp;to&nbsp;know&nbsp;which

&gt;&gt;&nbsp;&gt;&gt;&nbsp;book&nbsp;or&nbsp;material&nbsp;is&nbsp;best&nbsp;for&nbsp;the&nbsp;preparations.

&gt;&gt;&nbsp;&gt;

&gt;&gt;&nbsp;&gt;

&gt;&gt;&nbsp;&gt;&nbsp;http://www.cccure.org/flash/intro/player.html

&gt;&gt;&nbsp;&gt;

&gt;&gt;&nbsp;&gt;

&gt;&gt;&nbsp;&gt;

&gt;&gt;&nbsp;&gt;&nbsp;--

&gt;&gt;&nbsp;&gt;&nbsp;Jeronimo&nbsp;Zucco

&gt;&gt;&nbsp;&gt;&nbsp;http://jczucco.blogspot.com

&gt;&gt;&nbsp;&gt;

&gt;&gt;&nbsp;&gt;&nbsp;_______________________________________________

&gt;&gt;&nbsp;&gt;&nbsp;cisspstudy&nbsp;mailing&nbsp;list

&gt;&gt;&nbsp;&gt;&nbsp;cisspstudy@cccure.org&nbsp;&lt;http://mc/compose?to=cisspstudy@cccure.org&gt;

&gt;&gt;&nbsp;&gt;&nbsp;http://cccure.org/mailman/listinfo/cisspstudy_cccure.org

&gt;&gt;&nbsp;&gt;

&gt;&gt;

&gt;&gt;&nbsp;_______________________________________________

&gt;&gt;&nbsp;cisspstudy&nbsp;mailing&nbsp;list

&gt;&gt;&nbsp;cisspstudy@cccure.org&nbsp;&lt;http://mc/compose?to=cisspstudy@cccure.org&gt;

&gt;&gt;&nbsp;http://cccure.org/mailman/listinfo/cisspstudy_cccure.org

&gt;&gt;

&gt;&gt;&nbsp;------------------------------

&gt;&gt;

&gt;&gt;&nbsp;Message:&nbsp;3

&gt;&gt;&nbsp;Date:&nbsp;Tue,&nbsp;19&nbsp;Jan&nbsp;2010&nbsp;20:05:00&nbsp;+0800

&gt;&gt;&nbsp;From:&nbsp;jack&nbsp;wang&nbsp;&lt;windjie@gmail.com&lt;http://mc/compose?to=windjie@gmail.com&gt;

&gt;&gt;&nbsp;&gt;

&gt;&gt;&nbsp;To:&nbsp;The&nbsp;CISSP&nbsp;Study&nbsp;Mailing&nbsp;list&nbsp;&lt;cisspstudy@cccure.org&lt;http://mc/compose?to=cisspstudy@cccure.org&gt;

&gt;&gt;&nbsp;&gt;

&gt;&gt;&nbsp;Subject:&nbsp;Re:&nbsp;[Cisspstudy]&nbsp;New&nbsp;to&nbsp;CISSP&nbsp;Cert

&gt;&gt;&nbsp;Message-ID:

&gt;&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;3c43566f1001190405t2bfd204as4a953dd160a5b92b@mail.gmail.com&lt;http://mc/compose?to=3c43566f1001190405t2bfd204as4a953dd160a5b92b@mail.gmail.com&gt;

&gt;&gt;&nbsp;&gt;

&gt;&gt;&nbsp;Content-Type:&nbsp;text/plain;&nbsp;charset="iso-8859-1"

&gt;&gt;

&gt;&gt;&nbsp;Shon&nbsp;Harris&nbsp;Second&nbsp;Edition,plus&nbsp;www.cccure.org,they&nbsp;are&nbsp;enough

&gt;&gt;&nbsp;--------------&nbsp;next&nbsp;part&nbsp;--------------

&gt;&gt;&nbsp;An&nbsp;HTML&nbsp;attachment&nbsp;was&nbsp;scrubbed...

&gt;&gt;&nbsp;URL:&nbsp;&lt;

&gt;&gt;&nbsp;http://cccure.org/pipermail/cisspstudy_cccure.org/attachments/20100119/0d0b7b8f/attachment-0001.html

&gt;&gt;&nbsp;&gt;

&gt;&gt;

&gt;&gt;&nbsp;------------------------------

&gt;&gt;

&gt;&gt;&nbsp;Message:&nbsp;4

&gt;&gt;&nbsp;Date:&nbsp;Tue,&nbsp;19&nbsp;Jan&nbsp;2010&nbsp;10:34:19&nbsp;-0200

&gt;&gt;&nbsp;From:&nbsp;Jeronimo&nbsp;Zucco&nbsp;&lt;jczucco@gmail.com&lt;http://mc/compose?to=jczucco@gmail.com&gt;

&gt;&gt;&nbsp;&gt;

&gt;&gt;&nbsp;To:&nbsp;The&nbsp;CISSP&nbsp;Study&nbsp;Mailing&nbsp;list&nbsp;&lt;cisspstudy@cccure.org&lt;http://mc/compose?to=cisspstudy@cccure.org&gt;

&gt;&gt;&nbsp;&gt;

&gt;&gt;&nbsp;Subject:&nbsp;Re:&nbsp;[Cisspstudy]&nbsp;New&nbsp;to&nbsp;CISSP&nbsp;Cert

&gt;&gt;&nbsp;Message-ID:

&gt;&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;2d6b298c1001190434i6f1eb72ct1157b63b80fe9301@mail.gmail.com&lt;http://mc/compose?to=2d6b298c1001190434i6f1eb72ct1157b63b80fe9301@mail.gmail.com&gt;

&gt;&gt;&nbsp;&gt;

&gt;&gt;&nbsp;Content-Type:&nbsp;text/plain;&nbsp;charset=ISO-8859-1

&gt;&gt;

&gt;&gt;&nbsp;All-in_one&nbsp;edition&nbsp;5:

&gt;&gt;

&gt;&gt;

&gt;&gt;&nbsp;http://www.amazon.com/CISSP-All-One-Guide-Fifth/dp/0071602178/ref=sr_1_2?ie=UTF8&amp;s=books&amp;qid=1263898897&amp;sr=8-2

&gt;&gt;

&gt;&gt;&nbsp;I&nbsp;always&nbsp;recommend&nbsp;the&nbsp;last&nbsp;edition,&nbsp;because&nbsp;of&nbsp;updates&nbsp;and

&gt;&gt;&nbsp;corretions.&nbsp;Or&nbsp;you&nbsp;can&nbsp;read&nbsp;all&nbsp;erratas&nbsp;for&nbsp;your&nbsp;edition.

&gt;&gt;

&gt;&gt;&nbsp;2010/1/19&nbsp;jack&nbsp;wang&nbsp;&lt;windjie@gmail.com&lt;http://mc/compose?to=windjie@gmail.com&gt;

&gt;&gt;&nbsp;&gt;:

&gt;&gt;&nbsp;&gt;&nbsp;?Shon&nbsp;Harris&nbsp;Second&nbsp;Edition,plus&nbsp;www.cccure.org,they&nbsp;are&nbsp;enough

&gt;&gt;&nbsp;&gt;

&gt;&gt;

&gt;&gt;

&gt;&gt;&nbsp;--

&gt;&gt;&nbsp;Jeronimo&nbsp;Zucco

&gt;&gt;&nbsp;http://jczucco.blogspot.com

&gt;&gt;

&gt;&gt;

&gt;&gt;

&gt;&gt;&nbsp;------------------------------

&gt;&gt;

&gt;&gt;&nbsp;_______________________________________________

&gt;&gt;&nbsp;cisspstudy&nbsp;mailing&nbsp;list

&gt;&gt;&nbsp;cisspstudy@cccure.org&nbsp;&lt;http://mc/compose?to=cisspstudy@cccure.org&gt;

&gt;&gt;&nbsp;http://cccure.org/mailman/listinfo/cisspstudy_cccure.org

&gt;&gt;

&gt;&gt;

&gt;&gt;&nbsp;End&nbsp;of&nbsp;cisspstudy&nbsp;Digest,&nbsp;Vol&nbsp;19,&nbsp;Issue&nbsp;16

&gt;&gt;&nbsp;******************************************

&gt;&gt;

&gt;&gt;

&gt;&gt;&nbsp;_______________________________________________

&gt;&gt;&nbsp;cisspstudy&nbsp;mailing&nbsp;list

&gt;&gt;&nbsp;cisspstudy@cccure.org

&gt;&gt;&nbsp;http://cccure.org/mailman/listinfo/cisspstudy_cccure.org

&gt;&gt;

&gt;&gt;

&gt;--------------&nbsp;next&nbsp;part&nbsp;--------------

&gt;An&nbsp;HTML&nbsp;attachment&nbsp;was&nbsp;scrubbed...

&gt;URL:&nbsp;&lt;http://cccure.org/pipermail/cisspstudy_cccure.org/attachments/20100119/3dc4e4ac/attachment-0001.html&gt;

&gt;

&gt;------------------------------

&gt;

&gt;Message:&nbsp;2

&gt;Date:&nbsp;Tue,&nbsp;19&nbsp;Jan&nbsp;2010&nbsp;17:32:13&nbsp;-0800

&gt;From:&nbsp;"gerritsjs"&nbsp;&lt;gerritsjs@gmail.com&gt;

&gt;To:&nbsp;"'The&nbsp;CISSP&nbsp;Study&nbsp;Mailing&nbsp;list'"&nbsp;&lt;cisspstudy@cccure.org&gt;

&gt;Cc:&nbsp;twitwicki@hannaford.com

&gt;Subject:&nbsp;Re:&nbsp;[Cisspstudy]&nbsp;cisspstudy&nbsp;Digest,&nbsp;Vol&nbsp;19,&nbsp;Issue&nbsp;16

&gt;Message-ID:&nbsp;&lt;4b565d21.0d67f10a.2463.ffff933b@mx.google.com&gt;

&gt;Content-Type:&nbsp;text/plain;&nbsp;charset="us-ascii"

&gt;

&gt;&nbsp;

&gt;

&gt;Clement,&nbsp;

&gt;

&gt;&nbsp;

&gt;

&gt;Agree,&nbsp;the&nbsp;question&nbsp;is&nbsp;not&nbsp;properly&nbsp;vetted&nbsp;and&nbsp;also&nbsp;agree&nbsp;that&nbsp;in&nbsp;ASYMMETRIC

&gt;the&nbsp;total&nbsp;number&nbsp;of&nbsp;keys&nbsp;is&nbsp;20.&nbsp;

&gt;

&gt;&nbsp;

&gt;

&gt;Also,&nbsp;agree&nbsp;in&nbsp;symmetric&nbsp;the&nbsp;total&nbsp;number&nbsp;of&nbsp;keys&nbsp;is&nbsp;N(N-1)/2.

&gt;

&gt;&nbsp;

&gt;

&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

&gt;

&gt;&nbsp;&nbsp;_____&nbsp;&nbsp;

&gt;

&gt;From:&nbsp;cisspstudy-bounces@cccure.org&nbsp;[mailto:cisspstudy-bounces@cccure.org]

&gt;On&nbsp;Behalf&nbsp;Of&nbsp;Clement&nbsp;Dupuis

&gt;Sent:&nbsp;Tuesday,&nbsp;January&nbsp;19,&nbsp;2010&nbsp;4:07&nbsp;PM

&gt;To:&nbsp;The&nbsp;CISSP&nbsp;Study&nbsp;Mailing&nbsp;list

&gt;Cc:&nbsp;twitwicki@hannaford.com

&gt;Subject:&nbsp;Re:&nbsp;[Cisspstudy]&nbsp;cisspstudy&nbsp;Digest,&nbsp;Vol&nbsp;19,&nbsp;Issue&nbsp;16

&gt;

&gt;&nbsp;

&gt;

&gt;Good&nbsp;day,

&gt;

&gt;I&nbsp;agree&nbsp;with&nbsp;Tom&nbsp;that&nbsp;it&nbsp;seems&nbsp;like&nbsp;the&nbsp;questions&nbsp;were&nbsp;definitively&nbsp;not

&gt;vetted&nbsp;properly.

&gt;

&gt;The&nbsp;total&nbsp;number&nbsp;of&nbsp;keys&nbsp;needed&nbsp;for&nbsp;asymmetric&nbsp;is&nbsp;simply&nbsp;total&nbsp;number&nbsp;of

&gt;users&nbsp;multiply&nbsp;by&nbsp;2

&gt;

&gt;10&nbsp;users&nbsp;is&nbsp;20&nbsp;keys&nbsp;that&nbsp;would&nbsp;be&nbsp;created&nbsp;overall.&nbsp;&nbsp;

&gt;

&gt;If&nbsp;it&nbsp;was&nbsp;Symmetric&nbsp;then&nbsp;you&nbsp;would&nbsp;use&nbsp;the&nbsp;formula:&nbsp;total&nbsp;number&nbsp;of&nbsp;users&nbsp;X

&gt;total&nbsp;number&nbsp;of&nbsp;users&nbsp;minus&nbsp;one&nbsp;divided&nbsp;by&nbsp;two.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;10&nbsp;x&nbsp;(10-1)/2&nbsp;which&nbsp;is

&gt;45&nbsp;keys.

&gt;

&gt;For&nbsp;the&nbsp;second&nbsp;question:&nbsp;&nbsp;all&nbsp;the&nbsp;services&nbsp;would&nbsp;be&nbsp;provided&nbsp;using&nbsp;Digital

&gt;Signatures&nbsp;which&nbsp;can&nbsp;only&nbsp;be&nbsp;achieve&nbsp;within&nbsp;asymmetric&nbsp;crypto&nbsp;systems.

&gt;While&nbsp;creating&nbsp;the&nbsp;digital&nbsp;signature&nbsp;the&nbsp;hashing&nbsp;algorithm&nbsp;would&nbsp;be&nbsp;use.

&gt;

&gt;Take&nbsp;care

&gt;

&gt;Clement

&gt;

&gt;

&gt;

&gt;

&gt;On&nbsp;Tue,&nbsp;Jan&nbsp;19,&nbsp;2010&nbsp;at&nbsp;16:07,&nbsp;Nimal&nbsp;Gunarathna&nbsp;&lt;ng949@yahoo.com&gt;&nbsp;wrote:

&gt;

&gt;

&gt;Hi&nbsp;Tom,

&gt;

&gt;&nbsp;

&gt;

&gt;This&nbsp;question&nbsp;puzzles&nbsp;me..

&gt;

&gt;In&nbsp;an&nbsp;asymmetric&nbsp;system&nbsp;how&nbsp;many&nbsp;keys&nbsp;are&nbsp;required&nbsp;for&nbsp;10&nbsp;users&nbsp;to&nbsp;fully

&gt;communicate?

&gt;

&gt;&nbsp;

&gt;

&gt;Every&nbsp;user&nbsp;has&nbsp;a&nbsp;one&nbsp;private&nbsp;and&nbsp;a&nbsp;one&nbsp;public&nbsp;key.&nbsp;I&nbsp;can&nbsp;send&nbsp;my&nbsp;same&nbsp;public

&gt;

&gt;key&nbsp;to&nbsp;all&nbsp;others.&nbsp;For&nbsp;10&nbsp;people,&nbsp;20&nbsp;keys&nbsp;are&nbsp;needed..&nbsp;I&nbsp;am&nbsp;not&nbsp;sure&nbsp;how&nbsp;110

&gt;come&nbsp;from?

&gt;

&gt;Is&nbsp;this&nbsp;a&nbsp;private&nbsp;com&nbsp;session&nbsp;or&nbsp;just&nbsp;a&nbsp;different&nbsp;comm&nbsp;session&nbsp;with&nbsp;each

&gt;pair?

&gt;

&gt;&nbsp;

&gt;

&gt;Thanks,

&gt;

&gt;&nbsp;

&gt;

&gt;Nimal&nbsp;Gunarathna&nbsp;

&gt;

&gt;&nbsp;

&gt;

&gt;&nbsp;

&gt;

&gt;&nbsp;

&gt;

&gt;---&nbsp;On&nbsp;Tue,&nbsp;1/19/10,&nbsp;cisspstudy-request@cccure.org

&gt;&lt;cisspstudy-request@cccure.org&gt;&nbsp;wrote:

&gt;

&gt;

&gt;From:&nbsp;cisspstudy-request@cccure.org&nbsp;&lt;cisspstudy-request@cccure.org&gt;

&gt;Subject:&nbsp;cisspstudy&nbsp;Digest,&nbsp;Vol&nbsp;19,&nbsp;Issue&nbsp;16

&gt;To:&nbsp;cisspstudy@cccure.org

&gt;Date:&nbsp;Tuesday,&nbsp;January&nbsp;19,&nbsp;2010,&nbsp;11:00&nbsp;AM

&gt;

&gt;Send&nbsp;cisspstudy&nbsp;mailing&nbsp;list&nbsp;submissions&nbsp;to

&gt;&nbsp;&nbsp;&nbsp;&nbsp;cisspstudy@cccure.org&nbsp;&lt;http://mc/compose?to=cisspstudy@cccure.org&gt;&nbsp;

&gt;

&gt;To&nbsp;subscribe&nbsp;or&nbsp;unsubscribe&nbsp;via&nbsp;the&nbsp;World&nbsp;Wide&nbsp;Web,&nbsp;visit

&gt;&nbsp;&nbsp;&nbsp;&nbsp;http://cccure.org/mailman/listinfo/cisspstudy_cccure.org

&gt;or,&nbsp;via&nbsp;email,&nbsp;send&nbsp;a&nbsp;message&nbsp;with&nbsp;subject&nbsp;or&nbsp;body&nbsp;'help'&nbsp;to

&gt;&nbsp;&nbsp;&nbsp;&nbsp;cisspstudy-request@cccure.org

&gt;&lt;http://mc/compose?to=cisspstudy-request@cccure.org&gt;&nbsp;

&gt;

&gt;You&nbsp;can&nbsp;reach&nbsp;the&nbsp;person&nbsp;managing&nbsp;the&nbsp;list&nbsp;at

&gt;&nbsp;&nbsp;&nbsp;&nbsp;cisspstudy-owner@cccure.org

&gt;&lt;http://mc/compose?to=cisspstudy-owner@cccure.org&gt;&nbsp;

&gt;

&gt;When&nbsp;replying,&nbsp;please&nbsp;edit&nbsp;your&nbsp;Subject&nbsp;line&nbsp;so&nbsp;it&nbsp;is&nbsp;more&nbsp;specific

&gt;than&nbsp;"Re:&nbsp;Contents&nbsp;of&nbsp;cisspstudy&nbsp;digest..."

&gt;

&gt;

&gt;Today's&nbsp;Topics:

&gt;

&gt;&nbsp;&nbsp;&nbsp;1.&nbsp;cisspstudy&nbsp;&nbsp;-&nbsp;Cryptography&nbsp;questions&nbsp;(twitwicki@hannaford.com

&gt;&lt;http://mc/compose?to=twitwicki@hannaford.com&gt;&nbsp;)

&gt;&nbsp;&nbsp;&nbsp;2.&nbsp;Re:&nbsp;New&nbsp;to&nbsp;CISSP&nbsp;Cert&nbsp;(Mark&nbsp;Price)

&gt;&nbsp;&nbsp;&nbsp;3.&nbsp;Re:&nbsp;New&nbsp;to&nbsp;CISSP&nbsp;Cert&nbsp;(jack&nbsp;wang)

&gt;&nbsp;&nbsp;&nbsp;4.&nbsp;Re:&nbsp;New&nbsp;to&nbsp;CISSP&nbsp;Cert&nbsp;(Jeronimo&nbsp;Zucco)

&gt;

&gt;

&gt;----------------------------------------------------------------------

&gt;

&gt;Message:&nbsp;1

&gt;Date:&nbsp;Mon,&nbsp;18&nbsp;Jan&nbsp;2010&nbsp;14:48:26&nbsp;-0500

&gt;From:&nbsp;twitwicki@hannaford.com&nbsp;&lt;http://mc/compose?to=twitwicki@hannaford.com&gt;

&gt;

&gt;To:&nbsp;cisspstudy@cccure.org&nbsp;&lt;http://mc/compose?to=cisspstudy@cccure.org&gt;&nbsp;

&gt;Subject:&nbsp;[Cisspstudy]&nbsp;cisspstudy&nbsp;&nbsp;-&nbsp;Cryptography&nbsp;questions

&gt;Message-ID:

&gt;&nbsp;&nbsp;&nbsp;&nbsp;&lt;OF8F407D94.BBDB76DE-ON852576AF.006B4314-852576AF.006CCD97@hannaford.com

&gt;&lt;http://mc/compose?to=OF8F407D94.BBDB76DE-ON852576AF.006B4314-852576AF.006CC

&gt;D97@hannaford.com&gt;&nbsp;&gt;

&gt;&nbsp;&nbsp;&nbsp;&nbsp;

&gt;Content-Type:&nbsp;text/plain;&nbsp;charset=US-ASCII

&gt;

&gt;

&gt;

&gt;Hello&nbsp;all,

&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;I'd&nbsp;like&nbsp;your&nbsp;thoughts&nbsp;on&nbsp;these&nbsp;questions&nbsp;from&nbsp;Michael&nbsp;Gregg's&nbsp;CISSP

&gt;Practice&nbsp;questions:

&gt;

&gt;In&nbsp;an&nbsp;asymmetric&nbsp;system&nbsp;how&nbsp;many&nbsp;keys&nbsp;are&nbsp;required&nbsp;for&nbsp;10&nbsp;users&nbsp;to&nbsp;fully

&gt;communicate?

&gt;

&gt;A.&nbsp;10

&gt;B.&nbsp;20

&gt;C.&nbsp;45

&gt;D&nbsp;110

&gt;

&gt;The&nbsp;answer&nbsp;states&nbsp;D.&nbsp;110&nbsp;-&nbsp;&nbsp;"Each&nbsp;user&nbsp;would&nbsp;have&nbsp;his&nbsp;private,&nbsp;phus&nbsp;his

&gt;public&nbsp;key,&nbsp;plus&nbsp;each&nbsp;of&nbsp;the&nbsp;nine&nbsp;other&nbsp;public&nbsp;keys"

&gt;Shouldn't&nbsp;the&nbsp;answer&nbsp;be&nbsp;B.&nbsp;20&nbsp;&nbsp;because&nbsp;the&nbsp;public&nbsp;keys&nbsp;is&nbsp;only&nbsp;couned&nbsp;once

&gt;for&nbsp;each&nbsp;private/public&nbsp;pair?&nbsp;&nbsp;This&nbsp;also&nbsp;seems&nbsp;consistent&nbsp;with&nbsp;the&nbsp;formula

&gt;for&nbsp;symmetric&nbsp;keys:&nbsp;N(N-1)/2&nbsp;where&nbsp;N&nbsp;is&nbsp;the&nbsp;number&nbsp;of&nbsp;users&nbsp;needing&nbsp;to

&gt;communicate.&nbsp;&nbsp;In&nbsp;this&nbsp;case&nbsp;the&nbsp;secret&nbsp;key&nbsp;is&nbsp;only&nbsp;counted&nbsp;once&nbsp;even&nbsp;if&nbsp;it's

&gt;shared&nbsp;between&nbsp;users.

&gt;

&gt;

&gt;Here's&nbsp;another&nbsp;question&nbsp;that&nbsp;has&nbsp;me&nbsp;puzzled:

&gt;

&gt;Which&nbsp;cryptographic&nbsp;system&nbsp;can&nbsp;be&nbsp;used&nbsp;for&nbsp;integrity,&nbsp;authenticity&nbsp;and

&gt;non-repudiation?

&gt;

&gt;A.&nbsp;Asymmetric&nbsp;encryption

&gt;B.&nbsp;Symmetric&nbsp;&nbsp;encryption

&gt;C.&nbsp;Hashing

&gt;D.&nbsp;None&nbsp;of&nbsp;the&nbsp;above

&gt;

&gt;The&nbsp;answers&nbsp;states&nbsp;A.&nbsp;Asymmetric.&nbsp;&nbsp;Shouldn't&nbsp;the&nbsp;answer&nbsp;be&nbsp;D.&nbsp;None&nbsp;of&nbsp;the

&gt;above&nbsp;because&nbsp;Hashing&nbsp;is&nbsp;needed&nbsp;for&nbsp;integrity?

&gt;

&gt;Your&nbsp;thoughts&nbsp;will&nbsp;be&nbsp;much&nbsp;appreciated.

&gt;

&gt;

&gt;Tom&nbsp;Witwicki,&nbsp;CIPP

&gt;Director,&nbsp;Information&nbsp;Security

&gt;Hannaford&nbsp;Bros.&nbsp;Co.

&gt;207-885-2073

&gt;

&gt;Join&nbsp;me&nbsp;on&nbsp;Linkedin!

&gt;http://www.linkedin.com/in/tomwitwicki

&gt;

&gt;

&gt;

&gt;

&gt;

&gt;

&gt;

&gt;------------------------------

&gt;

&gt;Message:&nbsp;2

&gt;Date:&nbsp;Mon,&nbsp;18&nbsp;Jan&nbsp;2010&nbsp;21:47:45&nbsp;+0000

&gt;From:&nbsp;"Mark&nbsp;Price"&nbsp;&lt;prinext@gmail.com

&gt;&lt;http://mc/compose?to=prinext@gmail.com&gt;&nbsp;&gt;

&gt;To:&nbsp;"The&nbsp;CISSP&nbsp;Study&nbsp;Mailing&nbsp;list"&nbsp;&lt;cisspstudy@cccure.org

&gt;&lt;http://mc/compose?to=cisspstudy@cccure.org&gt;&nbsp;&gt;

&gt;Subject:&nbsp;Re:&nbsp;[Cisspstudy]&nbsp;New&nbsp;to&nbsp;CISSP&nbsp;Cert

&gt;Message-ID:

&gt;&nbsp;

&gt;&lt;1180962559-1263851266-cardhu_decombobulator_blackberry.rim.net-147941822-@b

&gt;da153.bisx.prod.on.blackberry

&gt;&lt;http://mc/compose?to=1180962559-1263851266-cardhu_decombobulator_blackberry

&gt;.rim.net-147941822-@bda153.bisx.prod.on.blackberry&gt;&nbsp;&gt;

&gt;&nbsp;&nbsp;&nbsp;&nbsp;

&gt;Content-Type:&nbsp;text/plain

&gt;

&gt;I&nbsp;have&nbsp;heard&nbsp;each&nbsp;edition&nbsp;is&nbsp;an&nbsp;update&nbsp;of&nbsp;the&nbsp;previous&nbsp;plus&nbsp;more&nbsp;of&nbsp;the

&gt;latest&nbsp;technology&nbsp;and&nbsp;or&nbsp;standards.&nbsp;

&gt;I&nbsp;have&nbsp;the&nbsp;4th&nbsp;and&nbsp;the&nbsp;DVD&nbsp;set,&nbsp;they&nbsp;plus&nbsp;cccure.org&nbsp;worked&nbsp;for&nbsp;me.

&gt;V/r,

&gt;

&gt;Mark&nbsp;Price

&gt;PRINEXT

&gt;c:240-743-7654

&gt;mprice@prinext.com&nbsp;&lt;http://mc/compose?to=mprice@prinext.com&gt;&nbsp;

&gt;www.prinext.com

&gt;

&gt;-----Original&nbsp;Message-----

&gt;From:&nbsp;Cert&nbsp;Prep&nbsp;&lt;bugtraq.mailbox@gmail.com

&gt;&lt;http://mc/compose?to=bugtraq.mailbox@gmail.com&gt;&nbsp;&gt;

&gt;Date:&nbsp;Mon,&nbsp;18&nbsp;Jan&nbsp;2010&nbsp;13:22:40&nbsp;

&gt;To:&nbsp;The&nbsp;CISSP&nbsp;Study&nbsp;Mailing&nbsp;list&lt;cisspstudy@cccure.org

&gt;&lt;http://mc/compose?to=cisspstudy@cccure.org&gt;&nbsp;&gt;

&gt;Subject:&nbsp;Re:&nbsp;[Cisspstudy]&nbsp;New&nbsp;to&nbsp;CISSP&nbsp;Cert

&gt;

&gt;Thanks&nbsp;Jeronimo.&nbsp;I&nbsp;will&nbsp;listen&nbsp;to&nbsp;it.

&gt;

&gt;I&nbsp;have&nbsp;Shon&nbsp;Harris&nbsp;Second&nbsp;Edition&nbsp;which&nbsp;I&nbsp;bought&nbsp;many&nbsp;years&nbsp;back.&nbsp;I

&gt;have&nbsp;heard&nbsp;that&nbsp;5th&nbsp;edition&nbsp;is&nbsp;about&nbsp;to&nbsp;come.&nbsp;Is&nbsp;it&nbsp;ok&nbsp;to&nbsp;prepare&nbsp;from

&gt;second&nbsp;edition&nbsp;until&nbsp;5th&nbsp;edition&nbsp;is&nbsp;out?&nbsp;Does&nbsp;anybody&nbsp;know&nbsp;the

&gt;differences&nbsp;between&nbsp;2nd&nbsp;and&nbsp;4th?&nbsp;I&nbsp;am&nbsp;sure&nbsp;there&nbsp;will&nbsp;be&nbsp;many&nbsp;but&nbsp;are

&gt;those&nbsp;drastic&nbsp;to&nbsp;the&nbsp;extent&nbsp;that&nbsp;I&nbsp;will&nbsp;have&nbsp;to&nbsp;revise&nbsp;the&nbsp;stuff,

&gt;which&nbsp;I&nbsp;have&nbsp;already&nbsp;gone&nbsp;through&nbsp;using&nbsp;second&nbsp;edition,&nbsp;from&nbsp;5th

&gt;edition&nbsp;once&nbsp;it&nbsp;is&nbsp;published?

&gt;

&gt;Any&nbsp;help&nbsp;would&nbsp;be&nbsp;appreciated.

&gt;

&gt;Thanks.

&gt;Adam

&gt;

&gt;On&nbsp;Mon,&nbsp;Jan&nbsp;18,&nbsp;2010&nbsp;at&nbsp;12:51&nbsp;PM,&nbsp;Jeronimo&nbsp;Zucco&nbsp;&lt;jczucco@gmail.com

&gt;&lt;http://mc/compose?to=jczucco@gmail.com&gt;&nbsp;&gt;&nbsp;wrote:

&gt;&gt;&nbsp;2010/1/18&nbsp;Cert&nbsp;Prep&nbsp;&lt;bugtraq.mailbox@gmail.com

&gt;&lt;http://mc/compose?to=bugtraq.mailbox@gmail.com&gt;&nbsp;&gt;:

&gt;&gt;&gt;&nbsp;Hi&nbsp;Folks,

&gt;&gt;&gt;

&gt;&gt;&gt;&nbsp;I&nbsp;am&nbsp;planning&nbsp;to&nbsp;prepare&nbsp;for&nbsp;CISSP&nbsp;Cert&nbsp;and&nbsp;would&nbsp;like&nbsp;to&nbsp;know&nbsp;which

&gt;&gt;&gt;&nbsp;book&nbsp;or&nbsp;material&nbsp;is&nbsp;best&nbsp;for&nbsp;the&nbsp;preparations.

&gt;&gt;

&gt;&gt;

&gt;&gt;&nbsp;http://www.cccure.org/flash/intro/player.html

&gt;&gt;

&gt;&gt;

&gt;&gt;

&gt;&gt;&nbsp;--

&gt;&gt;&nbsp;Jeronimo&nbsp;Zucco

&gt;&gt;&nbsp;http://jczucco.blogspot.com

&gt;&gt;

&gt;&gt;&nbsp;_______________________________________________

&gt;&gt;&nbsp;cisspstudy&nbsp;mailing&nbsp;list

&gt;&gt;&nbsp;cisspstudy@cccure.org&nbsp;&lt;http://mc/compose?to=cisspstudy@cccure.org&gt;&nbsp;

&gt;&gt;&nbsp;http://cccure.org/mailman/listinfo/cisspstudy_cccure.org

&gt;&gt;

&gt;

&gt;_______________________________________________

&gt;cisspstudy&nbsp;mailing&nbsp;list

&gt;cisspstudy@cccure.org&nbsp;&lt;http://mc/compose?to=cisspstudy@cccure.org&gt;&nbsp;

&gt;http://cccure.org/mailman/listinfo/cisspstudy_cccure.org

&gt;

&gt;------------------------------

&gt;

&gt;Message:&nbsp;3

&gt;Date:&nbsp;Tue,&nbsp;19&nbsp;Jan&nbsp;2010&nbsp;20:05:00&nbsp;+0800

&gt;From:&nbsp;jack&nbsp;wang&nbsp;&lt;windjie@gmail.com&nbsp;&lt;http://mc/compose?to=windjie@gmail.com&gt;

&gt;&gt;

&gt;To:&nbsp;The&nbsp;CISSP&nbsp;Study&nbsp;Mailing&nbsp;list&nbsp;&lt;cisspstudy@cccure.org

&gt;&lt;http://mc/compose?to=cisspstudy@cccure.org&gt;&nbsp;&gt;

&gt;Subject:&nbsp;Re:&nbsp;[Cisspstudy]&nbsp;New&nbsp;to&nbsp;CISSP&nbsp;Cert

&gt;Message-ID:

&gt;&nbsp;&nbsp;&nbsp;&nbsp;&lt;3c43566f1001190405t2bfd204as4a953dd160a5b92b@mail.gmail.com

&gt;&lt;http://mc/compose?to=3c43566f1001190405t2bfd204as4a953dd160a5b92b@mail.gmai

&gt;l.com&gt;&nbsp;&gt;

&gt;Content-Type:&nbsp;text/plain;&nbsp;charset="iso-8859-1"

&gt;

&gt;Shon&nbsp;Harris&nbsp;Second&nbsp;Edition,plus&nbsp;www.cccure.org,they&nbsp;are&nbsp;enough

&gt;--------------&nbsp;next&nbsp;part&nbsp;--------------

&gt;An&nbsp;HTML&nbsp;attachment&nbsp;was&nbsp;scrubbed...

&gt;URL:

&gt;&lt;http://cccure.org/pipermail/cisspstudy_cccure.org/attachments/20100119/0d0b

&gt;7b8f/attachment-0001.html&gt;

&gt;

&gt;------------------------------

&gt;

&gt;Message:&nbsp;4

&gt;Date:&nbsp;Tue,&nbsp;19&nbsp;Jan&nbsp;2010&nbsp;10:34:19&nbsp;-0200

&gt;From:&nbsp;Jeronimo&nbsp;Zucco&nbsp;&lt;jczucco@gmail.com

&gt;&lt;http://mc/compose?to=jczucco@gmail.com&gt;&nbsp;&gt;

&gt;To:&nbsp;The&nbsp;CISSP&nbsp;Study&nbsp;Mailing&nbsp;list&nbsp;&lt;cisspstudy@cccure.org

&gt;&lt;http://mc/compose?to=cisspstudy@cccure.org&gt;&nbsp;&gt;

&gt;Subject:&nbsp;Re:&nbsp;[Cisspstudy]&nbsp;New&nbsp;to&nbsp;CISSP&nbsp;Cert

&gt;Message-ID:

&gt;&nbsp;&nbsp;&nbsp;&nbsp;&lt;2d6b298c1001190434i6f1eb72ct1157b63b80fe9301@mail.gmail.com

&gt;&lt;http://mc/compose?to=2d6b298c1001190434i6f1eb72ct1157b63b80fe9301@mail.gmai

&gt;l.com&gt;&nbsp;&gt;

&gt;Content-Type:&nbsp;text/plain;&nbsp;charset=ISO-8859-1

&gt;

&gt;All-in_one&nbsp;edition&nbsp;5:

&gt;

&gt;http://www.amazon.com/CISSP-All-One-Guide-Fifth/dp/0071602178/ref=sr_1_2?ie=

&gt;UTF8

&gt;&lt;http://www.amazon.com/CISSP-All-One-Guide-Fifth/dp/0071602178/ref=sr_1_2?ie

&gt;=UTF8&amp;s=books&amp;qid=1263898897&amp;sr=8-2&gt;&nbsp;&amp;s=books&amp;qid=1263898897&amp;sr=8-2

&gt;

&gt;I&nbsp;always&nbsp;recommend&nbsp;the&nbsp;last&nbsp;edition,&nbsp;because&nbsp;of&nbsp;updates&nbsp;and

&gt;corretions.&nbsp;Or&nbsp;you&nbsp;can&nbsp;read&nbsp;all&nbsp;erratas&nbsp;for&nbsp;your&nbsp;edition.

&gt;

&gt;2010/1/19&nbsp;jack&nbsp;wang&nbsp;&lt;windjie@gmail.com

&gt;&lt;http://mc/compose?to=windjie@gmail.com&gt;&nbsp;&gt;:

&gt;&gt;&nbsp;?Shon&nbsp;Harris&nbsp;Second&nbsp;Edition,plus&nbsp;www.cccure.org,they&nbsp;are&nbsp;enough

&gt;&gt;

&gt;

&gt;

&gt;--&nbsp;

&gt;Jeronimo&nbsp;Zucco

&gt;http://jczucco.blogspot.com

&gt;

&gt;

&gt;

&gt;------------------------------

&gt;

&gt;_______________________________________________

&gt;cisspstudy&nbsp;mailing&nbsp;list

&gt;cisspstudy@cccure.org&nbsp;&lt;http://mc/compose?to=cisspstudy@cccure.org&gt;&nbsp;

&gt;http://cccure.org/mailman/listinfo/cisspstudy_cccure.org

&gt;

&gt;

&gt;End&nbsp;of&nbsp;cisspstudy&nbsp;Digest,&nbsp;Vol&nbsp;19,&nbsp;Issue&nbsp;16

&gt;******************************************

&gt;

&gt;

&gt;_______________________________________________

&gt;cisspstudy&nbsp;mailing&nbsp;list

&gt;cisspstudy@cccure.org

&gt;http://cccure.org/mailman/listinfo/cisspstudy_cccure.org

&gt;

&gt;&nbsp;

&gt;

&gt;--------------&nbsp;next&nbsp;part&nbsp;--------------

&gt;An&nbsp;HTML&nbsp;attachment&nbsp;was&nbsp;scrubbed...

&gt;URL:&nbsp;&lt;http://cccure.org/pipermail/cisspstudy_cccure.org/attachments/20100119/201df153/attachment.html&gt;

&gt;--------------&nbsp;next&nbsp;part&nbsp;--------------

&gt;An&nbsp;embedded&nbsp;and&nbsp;charset-unspecified&nbsp;text&nbsp;was&nbsp;scrubbed...

&gt;Name:&nbsp;CS&nbsp;294&nbsp;&nbsp;Network&nbsp;Security.txt

&gt;URL:&nbsp;&lt;http://cccure.org/pipermail/cisspstudy_cccure.org/attachments/20100119/201df153/attachment.txt&gt;

&gt;

&gt;------------------------------

&gt;

&gt;_______________________________________________

&gt;cisspstudy&nbsp;mailing&nbsp;list

&gt;cisspstudy@cccure.org

&gt;http://cccure.org/mailman/listinfo/cisspstudy_cccure.org

&gt;

&gt;

&gt;End&nbsp;of&nbsp;cisspstudy&nbsp;Digest,&nbsp;Vol&nbsp;19,&nbsp;Issue&nbsp;19

&gt;******************************************

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