oprf
2 posts tagged oprf.
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The Server Helped, and Never Saw: A Field Guide to Oblivious Pseudorandom Functions
How a server applies its secret key to your secret input without ever seeing it: OPRF, VOPRF, and POPRF (RFC 9497), the engine of OPAQUE and Privacy Pass.
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The Doorway Into the Group: A Field Guide to Hashing a String Onto an Elliptic Curve (RFC 9380)
Turning a string into an elliptic-curve point is a two-decade problem behind a one-line API. Why H(m)*G and hunt-and-peck both fail, and how RFC 9380 fixes it.