ETHEREUM CONSIDERS REPLACING BLS TO PROTECT $104B IN ETH
Ethereum is preparing a new defense layer against the risk posed by quantum computers. Developers have proposed rebuilding the Deposit Contract, allowing validators to use multiple key types instead of being locked into the current BLS signature system.
Around 42.4 million ETH, worth approximately $104 billion, is currently secured through BLS. The system is efficient because it can aggregate multiple signatures, but it relies on elliptic-curve cryptography — a structure that could eventually be broken by Shor’s algorithm if sufficiently powerful quantum computers emerge.
The new proposal would support variable-length validation data, up to 8,192 bytes, while assigning separate identifiers to different cryptographic systems. BLS would retain code 0, while new signature systems could be added later.
The key point is that Ethereum has not yet selected a replacement for BLS. The proposal is essentially building the infrastructure needed for a future transition once a suitable post-quantum signature system is chosen.
The redesigned Deposit Contract would have three states, with the final state potentially locking out new BLS validators permanently. Existing BLS validators would not be removed, but Ethereum would need additional consensus-layer changes to verify and process new signatures.
The proposal remains in draft form. Some research estimates that 50–65% of total ETH is held in accounts with exposed public keys, while the Ethereum Foundation is targeting around 2029 for core post-quantum infrastructure preparations.
If quantum computers are still years away from reaching dangerous capabilities, is Ethereum preparing too early — or is this exactly the lead time required to protect a network securing hundreds of billions of dollars?
Please do your own research carefully before making any transactions (DYOR). $ETH $BCH $BNB
Ethereum is preparing a new defense layer against the risk posed by quantum computers. Developers have proposed rebuilding the Deposit Contract, allowing validators to use multiple key types instead of being locked into the current BLS signature system.
Around 42.4 million ETH, worth approximately $104 billion, is currently secured through BLS. The system is efficient because it can aggregate multiple signatures, but it relies on elliptic-curve cryptography — a structure that could eventually be broken by Shor’s algorithm if sufficiently powerful quantum computers emerge.
The new proposal would support variable-length validation data, up to 8,192 bytes, while assigning separate identifiers to different cryptographic systems. BLS would retain code 0, while new signature systems could be added later.
The key point is that Ethereum has not yet selected a replacement for BLS. The proposal is essentially building the infrastructure needed for a future transition once a suitable post-quantum signature system is chosen.
The redesigned Deposit Contract would have three states, with the final state potentially locking out new BLS validators permanently. Existing BLS validators would not be removed, but Ethereum would need additional consensus-layer changes to verify and process new signatures.
The proposal remains in draft form. Some research estimates that 50–65% of total ETH is held in accounts with exposed public keys, while the Ethereum Foundation is targeting around 2029 for core post-quantum infrastructure preparations.
If quantum computers are still years away from reaching dangerous capabilities, is Ethereum preparing too early — or is this exactly the lead time required to protect a network securing hundreds of billions of dollars?
Please do your own research carefully before making any transactions (DYOR). $ETH $BCH $BNB
