alt Hacker NewsYeah. That will be the challenge.
I hope that enough are willing to if the benefits and security are explained plainly enough. For example, I don’t intend to store any passport info, just hashes. So there should be no risk, even if the DB leaks.
Yeah. That will be the challenge.
I hope that enough are willing to if the benefits and security are explained plainly enough. For example, I don’t intend to store any passport info, just hashes. So there should be no risk, even if the DB leaks.
First, not everyone has passports - there are roughly half as many US passports as Americans.
Second, how much of the passport information do you hash that it's not reversible? If you know some facts about your target (imagine a public figure), could an attacker feasibly enumerate the remaining info to check to see if their passport was registered in your database? For example, there are only 2.6 billion possible American passport numbers, so if you knew the rest of Taylor Swift's info, you could conceivably use brute-force to see if she's in your database. As a side effect, you'd now know her passport number, as well.