Google's newly released quantum computer Willow is currently unable to crack the private key of cryptocurrency. Here are the specific reasons:
- Insufficient number of quantum bits: In theory, cracking Bitcoin encryption requires a quantum computer with about 13 million quantum bits to decrypt within 24 hours, while Willow only has 105 quantum bits, which is a huge gap from the required number
- Insufficient error correction capability: Running the Shor algorithm to crack encryption requires about 5,000 logical quantum bits, that is, millions of physical quantum bits. Willow's quantum bit number and error correction capability are far from this level
- Complexity of existing encryption algorithms: There is currently no effective cracking algorithm for the sha-256 hash algorithm and elliptic curve digital signature algorithm used by Bitcoin, and the cryptocurrency community is also studying quantum resistant algorithms to deal with potential threats!
