Function eosio_cdt_sys::recover_key

pub unsafe extern "C" fn recover_key(
    digest: *const capi_checksum256, 
    sig: *const c_char, 
    siglen: usize, 
    pub_: *mut c_char, 
    publen: usize
) -> c_int

Calculates the public key used for a given signature and hash used to create a message.

@param digest - Hash used to create a message @param sig - Signature @param siglen - Signature length @param pub - Public key @param publen - Public key length @return int - number of bytes written to pub

Example:

@code @endcode