The Trump administration is exploring ways to replace the use of Social Security numbers as the main method of assuring people’s identities in the wake of consumer credit agency Equifax Inc.’s massive data breach.
Joseph Lorenzo Hall, chief technologist at the Center for Democracy and Technology in Washington, said one possibility could be giving individuals a private key, essentially a long cryptographic number that’s embedded in a “physical token” that then requires users to verify that the number belongs to them. It could work like the chip in a credit card that requires the owner to enter a pin allowing use. He pointed to Estonia where they have deployed such cards that people use to validate their identity.
“Your pin unlocks your ability to use that big number,” he said. The challenge is how to create the identifiers and how to distribute the keys. “It’s very promising” and “it’s possible to technically design something like this” but it could be expensive to design and disseminate such material to each American, he said. “This is a pretty big endeavor.”