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RFC 9496 - The ristretto255 and decaf448 Groups

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IRTF - Internet Research Task Force

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RFC 9496: The ristretto255 and decaf448 Groups

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https://datatracker.ietf.org/doc/rfc9496/

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IETF Datatracker

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This memo specifies two prime-order groups, ristretto255 and decaf448, suitable for safely implementing higher-level and complex cryptographic protocols. The ristretto255 group can be implemented using Curve25519, allowing existing Curve25519 implementations to be reused and extended to provide a prime-order group. Likewise, the decaf448 group can be implemented using edwards448. This document is a product of the Crypto Forum Research Group (CFRG) in the IRTF.

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