According to https://www.secg.org/sec1-v2.pdf
In section 4.1.6 Public Key Recovery Operation it' s possible to recover the public Key Q, at least to within a small number of choices, given an ECDSA signature (r, s) and EC domain parameters. Input: The public key recovery operations takes as input: 1. Elliptic curve domain parameters T = (p, a, b, G, n, h) or T = (m, f(x), a, b, G, n, h) at the desired security level. 2. A message M. 3. An ECDSA signature value (r, s) that is valid on message M for some public key to be determined. Is it possible to achieve that using the crypto++ library? -- You received this message because you are subscribed to the Google Groups "Crypto++ Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/cryptopp-users/350eb1d6-f4f5-48a5-8086-d0e05c7fa86dn%40googlegroups.com.
