void convertnoncanonical(std::string const& hex, std::string const& canonhex)
{
blob b (loadsignature(hex));
// the signature ought to at least be valid before we begin.
expect (isvalid (hex), "invalid signature");
size_t len = b.size ();
expect (!makecanonicalecdsasig (&b[0], len),
"non-canonical signature was already canonical");
expect (b.size () >= len,
"canonicalized signature length longer than non-canonical");
b.resize (len);
expect (iscanonicalecdsasig (&b[0], len, ecdsa::strict),
"canonicalized signature is not strictly canonical");
blob canonicalform (loadsignature (canonhex));
expect (b.size () == canonicalform.size (),
"canonicalized signature doesn't have the expected length");
expect (std::equal (b.begin (), b.end (), canonicalform.begin ()),
"canonicalized signature isn't what we expected");
}
/*
* Edit signature file, called by menu 319
*/
void signature(void)
{
memset(&sLiNE, 0, sizeof(sLiNE));
if (loadsignature()) {
while (TRUE) {
if (editsignature() == TRUE)
break;
}
}
Enter(2);
/* Returning to */
pout(CFG.MoreF, CFG.MoreB, (char *) Language(117));
poutCR(CFG.MoreF, CFG.MoreB, CFG.bbs_name);
sleep(2);
}
// verifies that a signature is syntactically valid and in canonical form.
bool isstrictlycanonical (std::string const& hex)
{
blob j (loadsignature(hex));
return iscanonicalecdsasig (&j[0], j.size (), ecdsa::strict);
}
