South Korean Citizen IDs Vulnerable, Based On US Model
An anonymous reader writes: South Korea's Resident Registration Number (RRN) has been proven 'vulnerable to almost any adversary' by the 'Queen of re-identification', Harvard Professor Latanya Sweeney, who previously proved that 87 percent of all Americans could be uniquely identified using just their ZIP code, birthdate, and sex. Sweeney was able to decrypt personal information from the RRN numbers of 23,163 deceased Koreans with 100% success by two different methods of attack, and notes that the South Korean system is based on one currently in use in the U.S.
I'm only familiar with the Swedish model which uses a ten-digit number starting with the person's birth date on the form YYMMDD, three serial digits and a checksum. The key is that it's not designed to be secret at all, you're supposed to use it everywhere and for everything. It's just an ID number, simply knowing it does not entail authentication or authorization.
This problem isn't limited to just South Korea, Japan this month Japan will start rolling out a similar system called My Number(and of course, this being Japan, it is associated with a cute character) Not sure why countries are so eager to give ID thieves a field day, but apparently they are. The elderly are especially vulnerable as they are the least likely to understand the new system and use the new technology and the most likely to fall prey to scams.
Monstar L
Only in America. Pay through the nose for the most basic of health care, then have your privacy systematically violated as part of a federal requirement.
Captcha: winning
" The reason for this, oddly enough, had to do with a breach in a game called Lineage 2 that required KSSNs for registration - after the breach, the Korean government mandated that all online games use KSSNs for signups."
So,there was a breach on a system using KSSNs, which made users of that system exposed to all kinds of identity fraud. This prompted the Korean government to mandate the use of these numbers on other similar systems with supposedly the same security level?
Never mind that SSN are plastered everywhere, even if you don't tell me the first 5 digits, if I know your birthday and place of birth and the last 4 digits, I know all 9. It's a public algorithm.
In India we have a new system called Aadhaar. The unique ID is completely random and just knowing this number is useless as you would require to authenticate it with biometric or OTP sent to your mobile to do anything useful with it. Anyone can use it to Authenticate an Indian resident, the system will only reply with a yes/no based on the information (biometric/otp) submitted and will not leak any information on query..
It is 13 digit number comprises Birthdate (YYMMDD), gender (two digits), some 4 digits (AFAIK area code of your ancestor's origination or something like that) and a checksum digit. So it is hardly secure. On top of that, many of S. Korean websites stored those number upon registration in plain text, and got hacked to leak all those numbers. Also many people were successfully targeted with phishing mails and calls. And I have heard they could get numbers with brute force attack.
In early days, many websites used RRN to avoid people create multiple accounts but without any validation with RRN database of any sort. They only have checked the checksum digit which could be calculated with simple arithmetic (it was like multiply each digit, add the results and the lowest digit is the checksum number)
At certain point, some companies came up with RRN database service so websites could do actual validation from stopping multiple accounts. Though RRN numbers are already leaked from ages ago already. Many people have already shared with their friends and family for a long long time while it is advised to keep your number secret.
The idenfitifaction numbers shouldn't be required to be secret. They should be used for just one purpose - to identify a person in a database, to act as a foreign key so the government databases can join together all data they have on you using it as a key. Or some private company as well. It shouldn't be ever used to authenticate people, but that's how the SSN is used in the US and what's causing all these problems. It should be required that you show a valid identification document with your picture on it, that also includes your ID number. If I know someone's ID number here in Estonia, then all I can do is guess their age and sex from it. That's it, when you apply for a credit card you have to show some kind of document, so this fuss about ID numbers being secret is just insane and inconveivable for anyone outside the US. Here (in Estonia), if we need to identifi and authenticate ourselves to the government or some private company (banks to do online banking, telecoms to check the phone balance or whatever, change the cable tv package) we can use our ID card which has a private key on the chip and requires the knowledge of a PIN code for authentication, another PIN for giving digital signatures. The Japanese are doing it a bit wrong, they should put their "my number" of id documents like passport or drivers license. Roll it out when peoples documents expire and they have to get new ones.
SSN was never intended to be a secret authenticator. It's a sequentially assigned ID number, and nothing more. Historically, though, it became used as an authenticator. Much like "mother's maiden name" used to be the "challenge question" authenticator used.
Are we still expecting to build a system that can't be hacked? I don't understand why anyone would think that possible.
We gave up on that hundreds of years ago for so many things -- think the lock on your front door, next to the glass window; or your car, with the slim-jim. You can walk up to anyone on the street, and just stab them to death with a kitchen knife. You can drive your car onto the sidewalk and kill a dozen people in mere seconds.
I think it's high-time we stop wasting so much time and money trying to resist, and start planning to deter and penalize.
This system is NOT used in the US for social security numbers, its a private vendor that uses it....the /. summary is misleading..
Nobody reads the articles anymore so...here is the quote.
I AM A FREE MAN!
*contemptuous laughter*
I will not make any deals with you. I've resigned. I will not be pushed, filed, stamped, indexed, briefed, debriefed or numbered. My life is my own. I resign.