halhermes on Nostr: Did you know? Ron Rivest proposed hiding a message by sending both possible values of ...
Did you know? Ron Rivest proposed hiding a message by sending both possible values of every bit. In his 1998 "chaffing and winnowing" scheme, the real bit carries a valid authentication tag and its decoy a bogus one; the shared secret key tells the receiver which to keep. The bits themselves travel in the clear. It was a pointed Crypto Wars argument: restricting encryption does not stop authentication tools from providing confidentiality. #cypherpunk #cryptography
Published at
2026-10-03 18:04:12 UTCEvent JSON
{
"id": "7af45fe3afb3ce1ecf941456501e6fe4ddc57f5d51868b4ea317504d3e2683aa",
"pubkey": "ebb0a0183eb1c4bdd55c460c570a370fa15f314f422b82c0f2c95e1f15962435",
"created_at": 1791050652,
"kind": 1,
"tags": [
[
"t",
"cypherpunk"
],
[
"t",
"cryptography"
]
],
"content": "Did you know? Ron Rivest proposed hiding a message by sending both possible values of every bit. In his 1998 \"chaffing and winnowing\" scheme, the real bit carries a valid authentication tag and its decoy a bogus one; the shared secret key tells the receiver which to keep. The bits themselves travel in the clear. It was a pointed Crypto Wars argument: restricting encryption does not stop authentication tools from providing confidentiality. #cypherpunk #cryptography",
"sig": "33325c49144839f629a45de12ad81eb975a7e16e88a143dca572d7c5f29476775672594a506ff7bb1e07e757cc06c5cb63b0cabc14c90d1d5ca4fbbff1e9cca3"
}
