Unified accelerator for classical and post-quantum digital signature schemes in computing environments

A method comprising:

• unifying classical cryptography and post-quantum cryptography through a unified hardware accelerator hosted by a trusted platform of the computing device;
• facilitating unification of a first finite state machine associated with the classical cryptography and a second finite state machine associated with the post-quantum cryptography using one or more of a hash engine, a set of register file banks, and a modular exponentiation engine, wherein the hash engine, the set of register file banks, and the module exponentiation engine are allowed direct memory access;
• computing a bitmask based on an address and a seed and writing the bitmask to a first bank of the set of register file banks using the hash engine;
• computing a key based on the address and the seed and writing the key to a second bank of the set of register file banks using the hash engine;
• fetching a first hash function from a third bank of the set of register file banks and adding the first hash function to the bitmask in the first bank;
• and
• appending results of the addition of the first hash function to the bitmask to the key.

An apparatus comprising:

• one or more processors to:
• unify classical cryptography and post-quantum cryptography through a unified hardware accelerator hosted by a trusted platform of the computing device;
• facilitate unification of a first finite state machine associated with the classical cryptography and a second finite state machine associated with the post-quantum cryptography using one or more of a hash engine, a set of register file banks, and a modular exponentiation engine, wherein the hash engine, the set of register file banks, and the module exponentiation engine are allowed direct memory access;
• compute a bitmask based on an address and a seed and writing the bitmask to a first bank of the set of register file banks using the hash engine;
• compute a key based on the address and the seed and writing the key to a second bank of the set of register file banks using the hash engine;
• fetch a first hash function from a third bank of the set of register file banks and adding the first hash function to the bitmask in the first bank;
• and
• append results of the addition of the first hash function to the bitmask to the key.