Maxim’s ECDSA DS28E35 + DS 2475
A duo that brings a ECDSA to 1-wire
http://www.maximintegrated.com/en/products/embedded-security/authenticators/advisor/asymmetric.cfm
https://www.youtube.com/watch?v=hc1AB96TsZA
Quick info links:
Deterministic Usage of the Digital Signature Algorithm (DSA) and Elliptic Curve Digital Signature Algorithm (ECDSA): http://tools.ietf.org/html/rfc6979
Using the Elliptic Curve Digital Signature Algorithm (ECDSA) with the DeepCover Secure Microcontroller’s (MAXQ1103) Modular Arithmetic Accelerator (MAA): http://www.maximintegrated.com/en/app-notes/index.mvp/id/4016
DS28E35 – DeepCover Secure Authenticator with 1-Wire ECDSA and 1Kb User EEPROM http://www.maximintegrated.com/en/products/digital/memory-products/DS28E35.html
OpenSSL’s ECDSA: http://openssl.sourcearchive.com/documentation/0.9.8g-15plus-plenny11/crypto_2ecdsa_2ecdsa_8h_ac5884c7796bad53a27114ea3457a68dc.html
Elliptic Curve Digital Signature Algorithm: http://www.cryptopp.com/wiki/Elliptic_Curve_Digital_Signature_Algorithm