Also, hardware tokens are Tamper resistant so it is almost impossible to duplicate stolen token. Wikipedia says, that variant of AES is used to generate token codes from secret key "seed". The secret key is encoded into key at factory. I can give you a sense of how the Blizzard Mobile Authenticators work, since their code has been open-sourced.
The seed may generated by a variant of AES was already saved in the token before we using it. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. How do RSA tokens work? Ask Question. Asked 9 years, 11 months ago. Active 8 months ago.
Viewed 92k times. Improve this question. Jau L Jau L 1 1 gold badge 8 8 silver badges 16 16 bronze badges. What type of tokens? This provides a strong defence against key loggers and those trying to gain unauthorised entry to a system. RSA tokens have many applications and uses. Companies and corporations often use them to give employees access to their networks. Companies can also use RSA tokens to secure desktop architecture, defend web portals and protect their web servers.
Individual users might also want to use RSA for personal finance and to protect private accounts. Many famous and high-profile companies use RSA tokens for extra security.
PokerStars offer RSA tokens to clients to allow players to protect their real-money accounts. The RSA SecurID system computes what number the token is supposed to be showing at that moment in time, checks it against what the user entered, and makes the decision to allow or deny access. Unlike many other security services, SecureID uses hardware authentication.
This provides a level of protection from software-based cyber-attacks. The following is a comparison of SecurID versus other common security services. While RSA SecurID tokens can protect against password replay attacks by generating unique passwords for each session, they are do not provide any functionality to protect against man in the middle attacks. The simplest vulnerability with any and all password containers is losing the special key device or the activated smart phone with integrated functionality.
This vulnerability cannot be solved with any single token container device during the hard-locked time of available access using the stolen or lost key. A user will typically wait more than one day before reporting the device as missing, giving the attacker plenty of time to breach the unprotected system. In the client-server era, compliance was the main reason why organizations adopted security solutions like two-factor authentication, as they needed to fulfill regulations for protecting financial, healthcare, customer cardholder data, etc.
But nowadays, security and risk management are the main reasons companies want to implement two-factor authentication. Data breaches are real and affecting millions of users, and have real consequences on a large scale. A two-factor solution needs to be scalable so it can be deployed across all apps and employees with sensitive information distributed horizontally among users with all levels of power and access.
As the number of applications and users increase, and as cybercrime expands, shorter deployment times will be needed to provide safety. In , attackers breached RSA and stole the internal seeds used by RSA to verify its hardware devices, and used the information to attack Lockheed Martin, an RSA customer, amongst other unnamed defense contractors.
These internal seeds comprise a secret key hard-coded into the token itself, and are the digital equivalent of a padlock combination. Passwords can be guessed or cracked using dictionary attacks or more sophisticated methods such as rainbow tables, or users can be coerced, charmed or tricked into revealing their passwords to others. These latter techniques, called social engineering, have become a growing problem for companies of all sizes.
One way to thwart social engineers and reduce other risks associated with passwords is to implement some form of two-factor authentication. Each has advantages and disadvantages.
Smart cards can be carried in a wallet, but with the number of ID cards, credit cards, insurance cards, ATM cards and membership cards that some of us need to carry these days, our wallets may be filled to overflowing. Tokens are easy to carry in a pocket or on a keychain, but may also be more easily lost and for many of us, our key rings are just as full as our wallets. For those who already carry smart phones or PDAs, the most convenient solution may be to store authentication credentials on the device — but failure of the portable device or even a dead battery could render those users unable to log onto the network.
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