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more stops towards melt/reveal age restriction

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This commit is contained in:
Özgür Kesim 2022-01-31 23:26:28 +01:00
parent 53545c667b
commit 31cc3d236a
Signed by: oec
GPG Key ID: 3D76A56D79EDD9D7
5 changed files with 40 additions and 23 deletions
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29
src/lib/exchange_api_common.c
View File

@ -588,19 +588,24 @@ TALER_EXCHANGE_verify_coin_history (
}
}
if (GNUNET_OK !=
TALER_wallet_melt_verify (&amount,
&fee,
&rc,
h_denom_pub,
TALER_AgeCommitmentHash_isNullOrZero (
&h_age_commitment) ?
NULL : &h_age_commitment,
coin_pub,
&sig))
{
GNUNET_break_op (0);
return GNUNET_SYSERR;
const struct TALER_AgeCommitmentHash *ahc = &h_age_commitment;
if (TALER_AgeCommitmentHash_isNullOrZero (ahc))
ahc = NULL;
if (GNUNET_OK !=
TALER_wallet_melt_verify (&amount,
&fee,
&rc,
h_denom_pub,
ahc,
coin_pub,
&sig))
{
GNUNET_break_op (0);
return GNUNET_SYSERR;
}
}
add = GNUNET_YES;
}

6
src/lib/exchange_api_refresh_common.h
View File

@ -107,6 +107,12 @@ struct MeltData
* coins to be created, for each cut-and-choose dimension.
*/
struct TALER_PlanchetSecretsP *fresh_coins[TALER_CNC_KAPPA];
/**
* Arrays of @e num_fresh_coins with age commitments. The
* coins to be created, for each cut-and-choose dimension.
*/
struct TALER_AgeCommitmentHash **ach[TALER_CNC_KAPPA];
};

2
src/lib/exchange_api_refreshes_reveal.c
View File

@ -359,7 +359,7 @@ TALER_EXCHANGE_refreshes_reveal (
if (GNUNET_OK !=
TALER_planchet_prepare (&md->fresh_pks[i],
&md->fresh_coins[noreveal_index][i],
NULL, /* FIXME-oec: struct TALER_AgeCommitmentHash * */
NULL, /* FIXME-oec */
&c_hash,
&pd))
{

2
src/lib/exchange_api_withdraw.c
View File

@ -186,7 +186,7 @@ TALER_EXCHANGE_withdraw (
if (GNUNET_OK !=
TALER_planchet_prepare (&pk->key,
ps,
NULL, /* FIXME-oec: struct TALER_AgeCommitmentHash * */
NULL, /* FIXME-oec */
&wh->c_hash,
&pd))
{

24
src/util/crypto.c
View File

@ -88,12 +88,18 @@ TALER_test_coin_valid (const struct TALER_CoinPublicInfo *coin_public_info,
GNUNET_memcmp (&d_hash,
&coin_public_info->denom_pub_hash));
#endif
// FIXME-Oec: replace with function that
// also hashes the age vector if we have
// one!
GNUNET_CRYPTO_hash (&coin_public_info->coin_pub,
sizeof (struct GNUNET_CRYPTO_EcdsaPublicKey),
&c_hash.hash);
{
const struct TALER_AgeCommitmentHash *pahc =
&coin_public_info->age_commitment_hash;
if (TALER_AgeCommitmentHash_isNullOrZero (pahc))
pahc = NULL;
TALER_coin_pub_hash (&coin_public_info->coin_pub,
pahc,
&c_hash);
}
if (GNUNET_OK !=
TALER_denom_pub_verify (denom_pub,
&coin_public_info->denom_sig,
@ -328,7 +334,7 @@ TALER_coin_pub_hash (const struct TALER_CoinSpendPublicKeyP *coin_pub,
const struct TALER_AgeCommitmentHash *ach,
struct TALER_CoinPubHash *coin_h)
{
if (NULL == ach)
if (TALER_AgeCommitmentHash_isNullOrZero (ach))
{
/* No age commitment was set */
GNUNET_CRYPTO_hash (&coin_pub->eddsa_pub,
@ -393,7 +399,7 @@ TALER_age_restriction_derive (
const uint32_t seed,
const struct TALER_AgeCommitment *derived)
{
/* TODO */
/* TODO oec */
}
@ -404,7 +410,7 @@ TALER_age_restriction_commit (
const uint32_t seed,
struct TALER_AgeCommitment *commitment)
{
/* TODO */
/* TODO oec */
}