circom-dl

circom-dl is a a library implementing zk cryptographic primitives.

Currently, it supports:

• bitInt arithmetic. Used to implement operation of field that is larger than the field size of the underlying curve (e.g. bn128).

• ec arithmetic. Elliptic curve operations. Currently supports:

  • brainpoolP256r1
  • brainpoolP384r1
  • secp256r1
  • secp256k1
  • secp384r1
  • to be continued

• hasher. Implemets different hash functions. Currently supports:

  • SHA1
  • SHA224
  • SHA256
  • SHA384
  • SHA512
  • Poseidon (fixed missing constraints)
  • to be continued

• signatures. Implemets different signature schemes. Currently supports:

  • ECDSA (on supported curves ^)
  • RSA for any field size, supported hash functions and exponent
  • RSA-PSS
    • SHA384 && SALT_LEN == 48
    • SHA256 && SALT_LEN == 64
    • SHA256 && SALT_LEN == 32
  • to be continued

SETUP

npm install

TESTS

npm test