RT Journal Article T1 DME: a full encryption, signature and KEM multivariate public key cryptosystem A1 Luengo Velasco, Ignacio A1 Avendaño González, Martín Eugenio AB DME is a multivariate public key cryptosystem based on the composition of linear and exponential maps that allow the polynomials of the public key to be of a very high degree. A previous version of DME ([3]) was presented to the NIST call for postquantum cryptosystems (in the KEM category), but it did not qualify to the second round. This new version of DME adds two extra rounds of exponentials to the first version, and only needs arithmetic in the finite fields Fq and Fq2, dispensing the need for the field Fq3. YR 2022 FD 2022 LK https://hdl.handle.net/20.500.14352/72700 UL https://hdl.handle.net/20.500.14352/72700 LA eng DS Docta Complutense RD 17 abr 2025