Will Quantum Computers Break Rsa?

As it turns out, quantum computers can theoretically be used to break all existing implementations of asymmetric cryptography — not only RSA, but Diffie-Hellman and elliptic curve cryptography as well. Interestingly, symmetric cryptography, the less mathy encryption scheme, is not as vulnerable.

How long would it take a quantum computer to crack RSA?

Breaking 2048-bit RSA, a standard encryption scheme, would take a quantum computer with 20 million qubits 8 hours. Most researchers estimate it will take somewhere between a decade and two decades to reach this point.

Will quantum computers break Cryptocurrency?

Within a decade, quantum computers could be powerful enough to break the cryptographic security that protects cell phones, bank accounts, email addresses and — yes — bitcoin wallets. ... This is precisely why cryptographers around the world are racing to build a quantum-resistant encryption protocol.