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6 #3577 ©2003 

IDC 

F I G U R E   1  

WORLDWIDE ECOMMERCE SPENDING BY TYPE, 2000–2003 

0

200

400

600

800

1,000

1,200

1,400

1,600

2000

2001

2002

2003

($

B

)

B2B
B2C

 

Source: IDC's 

Internet Commerce Market Model

 version 8.1, February 2002 

 

Authorities in the United States recently cracked the case of a professional hacker 
based in the United Kingdom who had access to about 100 unclassified military 
networks during most of 2002. The case, which had been considered a high priority 
for a year, despite the unclassified nature of the networks, was a focus because of 
the skill of the hacker, who was finally snared. Although the exposed data was not 
particularly sensitive, the determination and talent of the hacker led authorities to 
believe that it would be only a matter of time before he uncovered something 
valuable. Among sites he was able to enter were the Pentagon Picatiny Arsenal in 
New Jersey, one of the Army's most delicate research facilities. And he was in the 
process of unfolding a multistage attack, the sign of a highly sophisticated hacker, at 
the time of his arrest. 

In a case involving far greater value, two Russian hackers were lured to the United 
States by federal agents on the pretext of a commercial interest. Once in Seattle, they 
were arrested. 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 pages of sensitive data from defense department computers, including one 
colonel's email inbox. 

Aiding and abetting the rise in attacks, the collective pool of hacking knowledge has 
risen. Hackers often trade schemes and software via Internet Relay Chat, better 
known by its initials, IRC, one of the least-regulated areas of the Internet and one that 
allows anonymous contact at the user's discretion. The packets flow to everywhere 
from everywhere. And although more policed areas of the Internet exist (e.g., AOL 
and other "communities" in cyberspace), the underlying structure still relies on real-
time routing, and packet spoofing makes it possible for someone to conceal his 
whereabouts, particularly if he comes from a number of directions at once.  

Aiding and abetting 
the rise in attacks,  
the collective pool of 
hacking knowledge 
has risen. Hackers 
often trade schemes 
and software via 
Internet Relay Chat, 
better known by its 
initials, IRC, one of 
the least-regulated 
areas of the Internet 
and one that allows 
anonymous contact at 
the user's discretion. 

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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