diff options
Diffstat (limited to 'src/util/denom.c')
| -rw-r--r-- | src/util/denom.c | 33 |
1 files changed, 31 insertions, 2 deletions
diff --git a/src/util/denom.c b/src/util/denom.c index 6b587026e..6de6084e7 100644 --- a/src/util/denom.c +++ b/src/util/denom.c @@ -244,6 +244,7 @@ TALER_denom_pub_hash (const struct TALER_DenominationPublicKey *denom_pub, GNUNET_CRYPTO_hash_context_read (hc, &denom_pub->details.cs_public_key, sizeof(denom_pub->details.cs_public_key)); + break; default: GNUNET_assert (0); } @@ -279,7 +280,8 @@ TALER_denom_blind (const struct TALER_DenominationPublicKey *dk, const struct TALER_AgeHash *age_commitment_hash, const struct TALER_CoinSpendPublicKeyP *coin_pub, struct TALER_CoinPubHash *c_hash, - struct TALER_BlindedPlanchet *blinded_planchet) + struct TALER_BlindedPlanchet *blinded_planchet, + ...) { blinded_planchet->cipher = dk->cipher; TALER_coin_pub_hash (coin_pub, @@ -301,7 +303,34 @@ TALER_denom_blind (const struct TALER_DenominationPublicKey *dk, return GNUNET_SYSERR; } return GNUNET_OK; - // TODO: add case for Clause-Schnorr + case TALER_DENOMINATION_CS: + { + // TODO: Where to store the blinded rpub? currently ignored + struct GNUNET_CRYPTO_CsRPublic blinded_r_pub[2]; + + va_list ap; + va_start (ap, blinded_planchet); + struct TALER_WithdrawNonce *nonce; + struct TALER_DenominationCsPublicR *r_pub; + + nonce = va_arg (ap, struct TALER_WithdrawNonce *); + r_pub = va_arg (ap, struct TALER_DenominationCsPublicR *); + + struct GNUNET_CRYPTO_CsBlindingSecret bs[2]; + GNUNET_CRYPTO_cs_blinding_secrets_derive (&nonce->nonce, bs); + + GNUNET_CRYPTO_cs_calc_blinded_c (bs, + r_pub->r_pub, + &dk->details.cs_public_key, + &c_hash->hash, + sizeof(struct GNUNET_HashCode), + blinded_planchet->details. + cs_blinded_planchet.c, + blinded_r_pub); + + va_end (ap); + return GNUNET_OK; + } default: GNUNET_break (0); return GNUNET_SYSERR; |