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W H I T E   P A P E R  

 

The Coming of Age of Client Security: Top Managers Realize They 
Have to Lock Down the Point of Entry 

Sponsored by: IBM Corporation 

 

Roger L. Kay  

January 2003 

 

S U M M A R Y  

Although security technology has progressed tremendously over time, awareness of 
the need for security on the part of people who use computers — both consumers 
and businesspeople — has not in general kept pace. Essentially, there is plenty of 
technology on hand, but the understanding of what it does and how to use it has 
lagged. However, much has changed since the attacks of September 11. CEOs and 
IT managers everywhere drew lessons from the differing fates of companies that had 
backup and restore procedures and those that didn't. Data recovery is, of course, only 
one piece of the security pie, but as political tensions have increased on the macro 
level, this and other security concerns have risen in visibility with top managers. "To 
what degree is our data — and therefore our business — safe?" CEOs are now 
asking in ever greater numbers and with increasing vehemence. "Just where are we 
with security?" they want to know of their CIOs. 

This shift in attitude represents an evolution from the pre–September 11 state, which 
was characterized by a vague awareness of some subset of security issues but a 
misunderstanding of the complete security picture and a widespread lack of adoption 
and deployment. 

Now managers are beginning to assess their vulnerability and to ask what their 
alternatives are. 

In most corporations, the security infrastructure is still inadequate and full of holes. 
Even the most sophisticated organizations are vulnerable. In one incident, widely 
reported in the press, that had an impact of major but unknown proportions — the 
degree of penetration was difficult to assess — a hacker from St. Petersburg, the 
intellectual seat of the old Soviet Union, broke into Microsoft's network and 
absconded with a large number of important files, including, purportedly, an unknown 
quantity of Windows source code files. Naturally, Microsoft never advertised the 
extent of the damage — if, indeed, it is actually known. And if a company at the 
epicenter of the information technology business is vulnerable (and by inference 
should know better), truly, no company is safe from attack.  

The security threat is growing in several dimensions at once. The amount of value 
flowing across the network — in the form of actual money, but also business plans, 
intellectual property, and strategic documents — is rising by leaps and bounds. And 
value is at risk in less obvious ways. A reputation can be damaged irreparably by an 
attack, business can be lost as a result of downtime, and the trust on which ebusiness 
is based can be destroyed permanently. To the growing list of imaginative crimes 
must be added identity theft, which has become a veritable cottage industry. In 
addition, malicious hackers are getting more sophisticated. Malevolent programmers 
are not only figuring out more effective ways to harm businesses and individuals but 
are also publishing their tricks on Web sites for other less creative, but perhaps more 
vindictive, people to find and use. 

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“To what degree  
is our data 

  

and therefore our 
business 

 safe?" 

CEOs are now 
asking. 

The security threat  
is growing in several 
dimensions at once. 

Содержание Desktop

Страница 1: ... sophisticated organizations are vulnerable In one incident widely reported in the press that had an impact of major but unknown proportions the degree of penetration was difficult to assess a hacker from St Petersburg the intellectual seat of the old Soviet Union broke into Microsoft s network and absconded with a large number of important files including purportedly an unknown quantity of Window...

Страница 2: ...ugh IBM acted unilaterally to design and implement its hardware solution key players in the industry have acknowledged the design point The TCPA was inaugurated with IBM Hewlett Packard Compaq Intel and Microsoft as founding members Since its inception in October 1999 more than 190 firms have signed up including Dell TCPA wants its security technology to be universal in the computing industry and ...

Страница 3: ...issues How the PC client can be the weak point in the security perimeter The rise in the value of data stored in insecure computing systems The scope of security measures Security history and current technology Client security implementations The advantages of IBM s hardware security implementation The evolution of industry standards for client security U S A G E L A G S B E H I N D T E C H N O L ...

Страница 4: ... to the corporation financial personnel and proprietary technical data whether it lies in the mainframe on the network or in clients at the low level of client protection most of the focus has shifted to ensuring that the cordon sanitaire is unbroken at the access point and that user files are secured Good mainframe security implementations particularly at the procedural level have been in place f...

Страница 5: ...ter more now than it has in the past Until recently few organizations had a need for systematic data security Banks and other financial institutions had to ensure end to end security for storing and moving money around over wires Certain government agencies could only operate in an impregnable data fortress But the volume of valuable data being stored and transmitted by most firms was relatively l...

Страница 6: ...ted But until that moment they had been engaged in an operation that had hacked into banks and ecommerce sites and extorted the operators for money with the promise of not revealing the hacks to the public Sometimes the value of reputation damage is difficult to assess but it may represent the entire value of the business Another Russian hacker was monitored for years as he downloaded millions of ...

Страница 7: ...ublic key encryption and its associated infrastructure address the issue of trust at the global level Of the many elements that make up a total security solution however PKI is the most dependent on completeness that is any two parties participating in secure transactions must both agree to rely on a third party a trusted authority sometimes called a certificate authority It is because of the comp...

Страница 8: ... break this code without the key a decipherer has to try 2 56 or 72 057 594 037 927 936 combinations 72 quadrillion for those intimidated by the sight of large numerals and because of the dynamism of the DES algorithm it is extremely difficult to reduce the size of the search space search space reduction being one of the more important techniques at the disposal of decipherers other than by luck U...

Страница 9: ...atter of jargon a one time key is called ephemeral The more robust method used to encode the AES keys is called asymmetric or public key cryptography The asymmetry refers to the fact that mathematically related but different keys are used for encoding and decoding When the private key is used to encrypt a message only the associated public key can be used to decrypt it When the public key is used ...

Страница 10: ... encode the symmetric key i e the AES key used for bulk data encryption The result of encoding the symmetric key with an asymmetric public key is called a digital envelope and the process is referred to as PKI key exchange IDENTIFYING THE SENDER AND GUARANTEEING DATA INTEGRITY We now have an infrastructure robust enough to guarantee the identity of the sender The sender is fairly confident of the ...

Страница 11: ...we utilize this powerful math C L I E N T S E C U R I T Y I M P L E M E N T A T I O N S Because of the unresolved procedural issues involved with implementing a fully secure infrastructure some of the grander visions of secure computing have been scaled back at least in the short term Companies need not wait until all parties agree on all aspects in order to shore up their security perimeters Even...

Страница 12: ...o commandeer a PC will let the intruder scan the contents of main memory and find the user s private key Back Orifice is good at masking itself encrypts its own outgoing traffic and was released in source code about two years ago at a hackers conference The nCipher program can find a 1 024 bit private key the best in commercial use And if a malicious hacker can get your private key he can get your...

Страница 13: ...he authorized user and that his or her local data is protected from intruders A HIERARCHY OF KEYS One of the greatest strengths of hardware security architecture is the hierarchical nature of its key management system The first key pair generated is used to protect another key pair called the platform identity key pair This key pair is created under the system owner s control and can be used by th...

Страница 14: ...st a virus that can wipe the hard disk clean Firewalls and antivirus software are required for that type of defense The chip just keeps data private and confidential and provides for PKI operations IBM and other vendors offer suites of interrelated security products to create a fully secure environment For example IPSec protects communications links by securing the Ethernet controller Another key ...

Страница 15: ...code named Palladium now being created by Microsoft Palladium which will incorporate TCPA s work will handle a wide variety of content and client security functions including many such as digital rights management for copyrighted material outside the scope of the TCPA specification Version 1 2 will be implemented in conjunction with future processor and chipset families from Intel and others and w...

Страница 16: ... user chooses Wireless Application Protocol WAP encryption the Wireless Transport Layer Security WTLS protocol which is a derivative of Secure Sockets Layer SSL is invoked This protocol begins with a secure certificate exchange between wireless nodes Within a single node the chip can be used at will for individual local file and folder encryption Files and folders can also be encrypted or decrypte...

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