int verify_asset_signature(tx_asset_t *asset, shpeer_t *peer)
{
uint64_t crc;
int err;
crc = shcrc((unsigned char *)asset->ass_data, asset->ass_size);
err = shkey_verify(shpeer_kpriv(peer), crc,
&asset->ass.ass_sig, asset->ass.ass_expire);
if (err)
return (err);
return (0);
}
/** Determine whether the appropriate context is availale. */
int txward_context_confirm(tx_ward_t *ward, tx_context_t *ctx)
{
int err;
if (!shkey_cmp(&ward->ward_ref, &ctx->ctx_ref))
return (SHERR_INVAL);
err = shkey_verify(&ward->ward_sig, shkey_crc(&ctx->ctx_ref),
&ctx->ctx_sig, ward->ward_tx.tx_stamp);
if (err)
return (err);
return (0);
}
static int validate_asset_signature(tx_asset_t *asset)
{
shpeer_t *peer;
uint64_t crc;
int err;
peer = load_asset_peer(&asset->ass.ass_id);
if (!peer)
return (SHERR_INVAL);
crc = shcrc((unsigned char *)asset->ass_data, asset->ass_size);
err = shkey_verify(shpeer_kpriv(peer), crc,
&asset->ass.ass_sig, asset->ass.ass_expire);
if (err)
return (err);
return (0);
}