The Clipper Chip

The government's official request for a key to every phone. Rejected loudly — then, per Snowden, taken quietly.

It's 1993. The internet is young, encryption is getting strong enough that ordinary people could soon lock their communications tight enough that no government on Earth could open them. And that terrifies certain people in Washington. So the government comes to you — to phone makers, to computer companies, to citizens — with an offer that sounds almost reasonable. Let us put a little chip in your devices. It'll encrypt everything, keep you safe from hackers and crooks. Strong protection, they promise. There's just one catch. The government keeps a copy of the key. That was the Clipper Chip. And it is completely real — an announced, official policy of the United States government, championed by the NSA and the Clinton administration. This wasn't a rumor. It was a press release. So here's how it was supposed to work. Every Clipper Chip carried a built-in encryption key, and a copy of that key would be split in half and locked away in escrow with two federal agencies. Encrypt your call, and it's private — unless the government wants in. Then they retrieve the two halves, reassemble your key, and listen. They called it 'key escrow.' Critics called it exactly what it was: a backdoor, built by design, into the nation's communications. But here's where it gets interesting. The plan didn't just face political outrage — though there was plenty. It faced math. In 1994, a Bell Labs researcher named Matt Blaze got his hands on the system and found a flaw. The chip used something called a LEAF, a Law Enforcement Access Field, to carry that escrowed key. Blaze discovered you could tamper with the LEAF — you could use the chip's own strong encryption while feeding the surveillance mechanism garbage, defeating the backdoor entirely. The government's wiretap door had a broken lock. And here's the part that mattered most. The public revolted. Cryptographers, civil liberties groups, an unlikely alliance of tech companies and privacy advocates — they hammered it. Why would anyone trust a system where the government pre-holds your keys? Why would foreign customers ever buy an American phone with a U.S. wiretap chip inside? By 1996 the Clipper Chip was dead. Defeated. A rare, documented case of a surveillance system proposed in the open and beaten in the open. But don't mistake defeat for surrender. The dream of built-in access never died — it just went quiet, and it went dark. The debate the Clipper Chip started, that fight over backdoors versus privacy, is the exact same fight raging today. On the map, this one links straight to PRISM, the mass-collection program revealed by Edward Snowden years later — the surveillance that happened after the front-door approach failed. And it links to CRYPTO AG, the operation where, instead of asking permission, the spies simply owned the encryption company outright. Find The Clipper Chip on the map right at the crossroads where the government asked politely — and got told no.