Skip to content

Latest commit

 

History

History
24 lines (17 loc) · 1.48 KB

ecdsa.md

File metadata and controls

24 lines (17 loc) · 1.48 KB
Raw

Description

Standard ECDSA formats are more widely used by enterprise applications. EOSIO-Taurus adds support to the standard ECDSA key formats for easier integrations. *

* The ECDSA public key follows the Standards for Efficient Cryptography 1.

How to use it

The following intrinsic functions are added for the Taurus VM for contracts and queries, as well as native tester support:

  • verify_ecdsa_sig(legacy_span<const char> message, legacy_span<const char> signature, legacy_span<const char> pubkey): return true if verification succeeds, otherwise return false
    • message: raw message string (e.g. string message to sign)
    • signature: ECDSA signature in ASN.1 DER format, base64 encoded string (e.g. string MEYCIQCi5byy/JAvLvFWjMP8ls7z0ttP8E9UApmw69OBzFWJ3gIhANFE2l3jO3L8c/kwEfuWMnh8q1BcrjYx3m368Xc/7QJU)
    • pubkey: ECDSA public key in X.509 SubjectPublicKeyInfo format, PEM encoded string (note: newline char \n is needed for the input string, e.g. string 
      -----BEGIN PUBLIC KEY-----\n
MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEzjca5ANoUF+XT+4gIZj2/X3V2UuT\n
E9MTw3sQVcJzjyC/p7KeaXommTC/7n501p4Gd1TiTiH+YM6fw/YYJUPSPg==\n
-----END PUBLIC KEY-----
  • is_supported_ecdsa_pubkey(legacy_span<const char> pubkey): return true if pubkey is in X.509 SubjectPublicKeyInfo format and PEM encoded

A protocol feature builtin_protocol_feature_t::verify_ecdsa_sig to control whether the feature is enabled or not.