micro-ecc

Version: v1.1

Repository: https://github.com/kmackay/micro-ecc/

Docs:

Primitives

Offers ECDH and ECDSA on secp160r1, secp192r1, secp224r1, secp256r1, and secp256k1.

ECDH

KeyGen:

• Short-Weierstrass

• Ladder (coZ, with subtraction) via uECC_make_key -> EccPoint_compute_public_key -> EccPoint_mult (also has coordinate randomization).

• Jacobian coZ coordinates (Z1 == Z2) from https://eprint.iacr.org/2011/338.pdf.

• coZ formulas from https://eprint.iacr.org/2011/338.pdf.

Derive:

• Short-Weierstrass

• Ladder (coZ, with subtraction) via uECC_shared_secret -> EccPoint_compute_public_key -> EccPoint_mult (also has coordinate randomization).

• Same coords and formulas as KeyGen.

ECDSA

Keygen:

• Same as ECDH.

Sign:

• Short-Weierstrass

• Ladder (coZ, with subtraction) via uECC_sign -> uECC_sign_with_k_internal -> EccPoint_mult (also has coordinate randomization).

• Same coords and formulas as KeyGen.

Verify:

• Short-Weierstrass

• Shamir’s trick via uECC_verify.

• Same coords and formulas as KeyGen.