Computational supersingular isogeny diffie-hellman (CSIDH) is a cryptographic protocol that uses the mathematical properties of supersingular elliptic curves and isogenies to establish a shared secret between two parties without directly exchanging sensitive information. This method is considered quantum-resistant, meaning it is designed to withstand potential attacks from quantum computers, which could easily break traditional cryptographic systems. By leveraging the structure of supersingular curves, CSIDH offers a secure alternative for key exchange in a post-quantum world.
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