Solana Tests Quantum-Resistant Cryptography Despite 90% Speed Drop

Solana took concrete steps by collaborating with Project Eleven to test post-quantum digital signatures on a live testnet.

Google research redefined the quantum threat, demonstrating the cryptography securing Bitcoin could be broken with fewer qubits than thought.

@coindesk

Solana's tests revealed that quantum-safe signatures are up to 40 times larger and made the network roughly 90% slower.

Bitcoin remains divided while blockchains like Solana and Aptos accelerate practical experimentation.

The key challenge is the scale of tradeoffs.

Post-quantum signatures are drastically larger, increasing bandwidth and storage demands.

@coindesk

Latency and throughput took a significant hit on a real testnet.

This forces the crypto ecosystem to confront a tradeoff between security and scalability.

Responses across the crypto industry vary.

“Solana's quantum-threat readiness reveals harsh tradeoff: security vs speed While Bitcoin developers scramble to find a solution and Ethereum prepares for 'Q-day,' Solana is trying to get ahead of that scenario”

@coindesk

Bitcoin remains divided over how urgently to address quantum risks.

Ethereum treats quantum computing as an engineering problem rather than a distant hypothesis.

Aptos proposed an optional upgrade for post-quantum signatures.

Quantum computing moves beyond theoretical risk into tangible engineering decisions.

The Solana Foundation focuses on a decades-long security horizon.

AMBCrypto

Google research suggests accelerating timelines.

Blockchain security cannot be taken for granted indefinitely.