Post-quantum cryptography
Post-quantum cryptography (PQC), sometimes referred to as quantum-proof, quantum-safe, or quantum-resistant, is the development of cryptographic algorithms that are currently thought, but not proven, to be secure against a cryptanalytic attack by a quantum computer.
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alternative approach to cryptographic security against quantum computers
While quantum cryptography uses physics to secure communication, post-quantum cryptography focuses on mathematical algorithms resistant to attacks by future quantum computers.
field developed in response to Shor's algorithm
This field focuses on developing cryptographic systems that are secure against attacks by quantum computers running algorithms like Shor's.