Can cryptography prevent printer-ink piracy?
In the computer printer business, everyone knows the big money comes from the sale of ink cartridges.
Most of these cartridges are made by printer manufacturers and sell for a substantial premium. Some come from unauthorized sources, sell for substantially less and attract the attention of antipiracy lawyers.
Cryptography Research Inc. (CRI), a San Francisco company, is developing chip technology aimed at helping printer manufacturers protect this primary source of profit. The company's chips use cryptography designed to make it harder for printers to use off-brand and counterfeit cartridges.
