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A Post-Quantum Key Agreement Protocol Based on a Modified Matrix-Power Function over a Rectangular Matrices Semiring. (arXiv:2303.11972v1 [cs.CR])
cs.CR updates on arXiv.org arxiv.org
We present an improved post-quantum version of Sakalauskas matrix power
function key-agreement protocol, using rectangular matrices instead the
original square ones. Sakalauskas matrix power function is an efficient and
secure way to generate a shared secret key, and using rectangular matrices can
provide additional flexibility and security in some applications. This method
reduces the computational complexity by allowing smaller random integers
matrices while maintaining equal security. Another advantage of using the
rank-deficient rectangular matrices over key agreement protocols is that …
applications complexity computational function key matrix post-quantum power protocol quantum random secret secret key security square version