Password Attack Taxonomy

This attack taxonomy includes most common attacks on passwords. The table below shows attack categories split into online and offline attacks. Offline attacks require access to a database of scrambled or encrypted passwords, while online attacks would use normal user interface to test or obtain user passwords.

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Looking for Adversary

Experts like to say that we are responsible for our security on internet. I disagree as we are not born as security experts. Neither does common sense always makes sense as users can’t see what is going on behind flashy images on their monitors. Who is the real bad boy? Continue reading Looking for Adversary

Why Storing Plaintext Passwords Is Bad

No matter what bad news we hear about passwords – leaks, security breaches, compromised security – passwords provide a very good protection when used properly. The real weak link here is the user. If users could remember long and random passwords, the “problem of passwords” would be much, much smaller. The hype would disappear and the real issue – how internet companies store passwords – would become much move visible.

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Online and Mobile Banking Fusion

Banks simplify access to our bank accounts. They keep relaxing security while hoping to replicate the boiling frog story. The trouble is that no-one dies and someone will figure out – sooner rather than later.

Debit-cards

I touch on a few things: using online banking to find valid card numbers, and date of birth, increasing chances for unauthorised access, lowering security of login credentials and changing role of debit cards.

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Tokenisation – Introduction

Tokenisation is a hot topic as it makes card processing cheaper and more secure. The goal is to replace your card number with a random number that is hard to use for unauthorised transactions – and it removes the need to encrypt databases.

What we are primarily looking at now are mobile payments but we are designing solutions for e-commerce as well. Payment processing involves re-encryption of PINs (PIN-blocks) for card-present transactions.

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BBC’s Edward Snowden was not really that

I watched BBC Panorama documentary with and about Snowden yesterday. Actually, I watched it twice as I was disappointed the first time round. I wanted to find out why.

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The Importance of DNS to a Start-up

Our emails were not being delivered. I thought it was just my ignorance but a chat with a few more people around told me it was not the case. This is a story of a geek learning a (yet another) lesson the hard way.

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Encryption for DNSSec

We have recently come across a nice check-list for whoever wants to use DNSSec and establish a good security baseline with a hardware security module (HSM), i.e., never get encryption keys compromised.

We will include detailed comparison of our platform to enigmabridge.com a little bit later but here is an initial comparison. Continue reading Encryption for DNSSec

Card Payments and The Cloud

We are now integrating encryption into a corporate infrastructure and it made me think about payments and PCI audits. PCI stands for Payment Card Industry. Anyone who got close enough to e-commerce, or card payments knows what a burden it is on running a business.

Sooo, I have spent some time this week thinking about architectures for “technical security systems”. I could say “cryptography” straight away, I guess. Thinking about protecting sensitive data that may be subject of independent audits.

The scope of PCI audits is given by storage and processing of credit card numbers and PINs (in case of Chip&PIN systems). Once you experience the pain, you definitely want to get “out of scope”. This is true for merchants just as banks.

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Hardware Security on Amazon Marketplace

We started researching options for introducing our encryption system to Amazon AWS. We seem to have lost the first round (request declined) as Amazon SaaS does not square up with our Enigma Bridge CloudHSM servers. But they offered a chat to figure out options – talking is always good!

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