NTRU

wikipedia:NTRU is an open-source public-key cryptosystem that uses lattice-based cryptography to encrypt and decrypt data.

Unlike RSA and Elliptic Curve Cryptography, NTRU is not known to be vulnerable to quantum computer based attacks.

• OpenSSH by default uses NTRU combined with the X25519 ECDH key exchange since August 2022, included in version 9.0.

Related

• Shor's algorithm
• Tanja Lange
• NIST Post-Quantum Cryptography Standardization
• Elliptic-curve cryptography (ECC)

See also

• Post-Quantum Cryptography (PQC), NTRU
• Cryptography, Cryptographic hash function, ECC, SHA, NTRU, Lattice-based cryptography, MPC

"Changes since OpenSSH 8.9 (OpenSSH 9.0 release notes)". OpenBSDs OpenSSH developers. 2022-04-08.