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Biometric Security: The Fine Print

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As adoption of biometric authentication increases, it’s important to understand the security methods used to protect biometric data, writes GREG SARRAIL, VP of Solutions Business Development at Biometrics at HID Global.

Biometric solutions are rapidly becoming the new standard for providing secure and convenient identity verification for consumers and corporations. In recent years, biometric technologies have been adopted to enhance security on mobile devices, secure access to facilities and even validate individual identity within the banking industry. When faced with new technology, many people question the security of the solution.  Where does the biometric data reside? Is it protected? Can it be easily accessed? If the data is compromised, can it be used maliciously?

Protect and/or render useless

Biometric fingerprint data is the information that is obtained by capturing unique features from an individual fingerprint image.  There are several ways to protect this information to ensure that it cannot be openly accessed and used for fraudulent means. During user authentication, the biometric data collected by the sensor must match the information that was captured during enrolment and is stored on a back-end system.  Most biometric systems use templates, mathematical representations of biometric data, rather than a raw image of a fingerprint.  Templates are much smaller than full images, which decreases the time required to provide a match, minimizes storage requirements and protects user privacy because a fingerprint image cannot be reconstructed from a template.  Some systems provide an additional layer of security by encrypting the transport tunnel and even the templates themselves to ensure the data is protected as it moves from the sensor to the back-end system.

Additional security methods can be deployed which are more dependent on the specific use case. For example, in an ATM setting, a user’s biometric information can be augmented before it is stored in a uniform way. This security practice is called “salting” and is done by combining the individual’s PIN and the fingerprint data prior to being stored. When verifying the biometric information, the same PIN is used with the same salting algorithm to provide a match. The advantage of this approach is that the back-end database does not contain an image of a fingerprint or even a standard template, but rather the combined “salted” template.  This approach increases both the security and privacy of a system.

An alternate approach is to eliminate the back-end database altogether by placing the secured biometric information on a card that is carried by the user. The new South African National ID, for example, is an identity card that securely stores an individual’s unique biometric fingerprint information that was captured during the enrolment process and was written to the card. This card is then presented at the time of verification. After the individual places a finger on the sensor the information is matched locally against the data stored on the card. No database must be queried; the transaction simply confirms that the identity of the user matches the identity stored on the card. This approach reduces the reliance on the back-end database and external transmission security.

Biometrics is the measurement of physiological characteristics; characteristics that are unique to each individual. Facial characteristics are plainly available — this is how people recognize each other, after all — and fingerprints are left behind at every restaurant, subway rail or door that we touch. A secure system must ensure that an individual, and only that individual, can use his or her own biometric data to authenticate. Thus, it is not enough to simply match biometric characteristics against enrolled data, since access to your fingerprint information isn’t protected. A secure fingerprint system will evaluate whether the finger being presented is real or simply a falsified representation of actual fingerprint data. This capability is called liveness detection and it provides an important way to secure biometric information. Liveness detection reduces the ability for a fraudster to use a fake finger or replay stolen biometric data since the data is useless without a live finger. Whichever combination of security methods are used to secure your identity, the ultimate goal is to render biometric data useless if a perpetrator were to access it.

Verify, not identify

In the non-criminal setting, biometrics is typically used to verify an individual and not to identify an individual. To verify a person’s identity the goal is to confirm with the highest level of assurance that the person is who he or she claims to be. Commercial applications often use demographic information, account numbers, card numbers or digital certificates in addition to the fingerprint data to determine a match.

Criminal systems typically don’t have any other information aside from the fingerprint, or partial fingerprint, and therefore must determine an identity with only the biometric data. This process utilizes a large back-end database to compare individual unique features of a fingerprint and to find probable matches among a stored database of fingerprint templates. This process is time intensive and expensive and is not often used in a commercial setting.

Biometric security systems are as unique as fingerprints.  Yet, good biometric systems combine the use of fingerprint templates with liveness detection to validate the identity of the right individual. Successful biometric systems are designed in accordance with the specific use case and with the desired results in mind: secure, convenient and reliable authentication that properly verifies the right individuals and rejects the wrong.

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Legion gets a pro makeover

Lenovo’s latest Legion gaming laptop, the Y530, pulls out all the stops to deliver a sleek looking computer at a lower price point, writes BRYAN TURNER

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Gaming laptops have become synonymous with thick bodies, loud fans, and rainbow lights. Lenovo’s latest gaming laptop is here to change that.

The unit we reviewed housed an Intel Core i7-8750H, with an Nvidia GeForce GTX 1060 GPU. It featured dual storage, one bay fitted with a Samsung 256GB NVMe SSD and the other with a 1TB HDD.

The latest addition to the Legion lineup has become far more professional-looking, compared to the previous generation Y520. This trend is becoming more prevalent in the gaming laptop market and appeals to those who want to use a single device for work and play. Instead of sporting flashy colours, Lenovo has opted for an all-black computer body and a monochromatic, white light scheme. 

The laptop features an all-metal body with sharp edges and comes in at just under 24mm thick. Lenovo opted to make the Y530’s screen lid a little shorter than the bottom half of the laptop, which allowed for more goodies to be packed in the unit while still keeping it thin. The lid of the laptop features Legion branding that’s subtly engraved in the metal and aligned to the side. It also features a white light in the O of Legion that glows when the computer is in use.

The extra bit of the laptop body facilitates better cooling. Lenovo has upgraded its Legion fan system from the previous generation. For passive cooling, a type of cooling that relies on the body’s build instead of the fans, it handles regular office use without starting up the fans. A gaming laptop with good passive cooling is rare to find and Lenovo has shown that it can be achieved with a good build.

The internal fans start when gaming, as one would expect. They are about as loud as other gaming laptops, but this won’t be a problem for gamers who use headsets.

Click here to read about the screen quality, and how it performs in-game.

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Serious about security? Time to talk ISO 20000

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By EDWARD CARBUTT, executive director at Marval Africa

The looming Protection of Personal Information (PoPI) Act in South Africa and the introduction of the General Data Protection Regulation (GDPR) in the European Union (EU) have brought information security to the fore for many organisations. This in addition to the ISO 27001 standard that needs to be adhered to in order to assist the protection of information has caused organisations to scramble and ensure their information security measures are in line with regulatory requirements.

However, few businesses know or realise that if they are already ISO 20000 certified and follow Information Technology Infrastructure Library’s (ITIL) best practices they are effectively positioning themselves with other regulatory standards such as ISO 27001. In doing so, organisations are able to decrease the effort and time taken to adhere to the policies of this security standard.

ISO 20000, ITSM and ITIL – Where does ISO 27001 fit in?

ISO 20000 is the international standard for IT service management (ITSM) and reflects a business’s ability to adhere to best practice guidelines contained within the ITIL frameworks. 

ISO 20000 is process-based, it tackles many of the same topics as ISO 27001, such as incident management, problem management, change control and risk management. It’s therefore clear that if security forms part of ITSM’s outcomes, it should already be taken care of… So, why aren’t more businesses looking towards ISO 20000 to assist them in becoming ISO 27001 compliant?

The link to information security compliance

Information security management is a process that runs across the ITIL service life cycle interacting with all other processes in the framework. It is one of the key aspects of the ‘warranty of the service’, managed within the Service Level Agreement (SLA). The focus is ensuring that the quality of services produces the desired business value.

So, how are these standards different?

Even though ISO 20000 and ISO 27001 have many similarities and elements in common, there are still many differences. Organisations should take cognisance that ISO 20000 considers risk as one of the building elements of ITSM, but the standard is still service-based. Conversely, ISO 27001 is completely risk management-based and has risk management at its foundation whereas ISO 20000 encompasses much more

Why ISO 20000?

Organisations should ask themselves how they will derive value from ISO 20000. In Short, the ISO 20000 certification gives ITIL ‘teeth’. ITIL is not prescriptive, it is difficult to maintain momentum without adequate governance controls, however – ISO 20000 is.  ITIL does not insist on continual service improvement – ISO 20000 does. In addition, ITIL does not insist on evidence to prove quality and progress – ISO 20000 does.  ITIL is not being demanded by business – governance controls, auditability & agility are. This certification verifies an organisation’s ability to deliver ITSM within ITIL standards.

Ensuring ISO 20000 compliance provides peace of mind and shortens the journey to achieving other certifications, such as ISO 27001 compliance.

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