Voir :
https://fr.wikipedia.org/wiki/Partage_de_cl%C3%A9_secr%C3%A8te_de_Shamir
ECC elliptic https://arstechnica.com/information-technology/2013/10/a-relatively-easy-to-understand-primer-on-elliptic-curve-cryptography/
By-Design Backdooring of Encryption System - Can We Trust Foreign Encryption Algorithms - Black Hat
https://fr.wikipedia.org/wiki/Signature_aveugle
