XRP Ledger Quantum Target Awaits Formal Roadmap Confirmation
XRP Ledger contributor Vet has proposed targets for post-quantum testing and mainnet transition. The plan involves hybrid post-quantum testing in 2027 and a mainnet transition in 2028, but no official XRPL roadmap confirms these deadlines.
Vet expects major progress on the quantum upgrade in 2027 before a possible mainnet transition during 2028. Testing post-quantum algorithms and running new signature methods beside XRPL's existing cryptography will be part of this work.
The XRP Ledger currently supports secp256k1 and Ed25519 signatures, both vulnerable to sufficiently capable quantum computers someday. RegularKey functionality allows XRPL accounts to change signing keys while retaining their public addresses, but this is not the same as complete quantum protection.
Ethereum researcher Justin Drake expects Ethereum's three cryptographic layers to become post-quantum secure by 2029, one year after XRPL's proposed target. However, neither date represents a guaranteed network activation.