After some reasearchs:
BIP-85 is a standard for public-key cryptography, also known as elliptic curve cryptography (ECC) that was developed in 1995
Anyway the BIP-85 defines a mechanism for generating a public/private key pair using a deterministic algorithm that works by taking a password as input and repeatedly hashing it with a SHA-1 hash function (The number of iterations can be specified and should be high for more security) The resulting hashes are used as the private key and a fixed-size salt value is added to each hash to ensure that two different passwords produce the same private key