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-rw-r--r--src/util/crypto.c58
1 files changed, 46 insertions, 12 deletions
diff --git a/src/util/crypto.c b/src/util/crypto.c
index 3e759e71b..50f2d97d3 100644
--- a/src/util/crypto.c
+++ b/src/util/crypto.c
@@ -209,11 +209,10 @@ TALER_cs_withdraw_nonce_derive (const struct
void
TALER_planchet_blinding_secret_create (struct TALER_PlanchetSecretsP *ps,
- enum TALER_DenominationCipher cipher,
const struct
TALER_ExchangeWithdrawValues *alg_values)
{
- switch (cipher)
+ switch (alg_values->cipher)
{
case TALER_DENOMINATION_INVALID:
GNUNET_break (0);
@@ -244,18 +243,20 @@ TALER_planchet_blinding_secret_create (struct TALER_PlanchetSecretsP *ps,
*/
void
TALER_planchet_setup_random (struct TALER_PlanchetSecretsP *ps,
- enum TALER_DenominationCipher cipher)
+ const struct
+ TALER_ExchangeWithdrawValues *alg_values)
{
GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_STRONG,
&ps->coin_priv,
sizeof (struct TALER_CoinSpendPrivateKeyP));
- switch (cipher)
+ switch (alg_values->cipher)
{
case TALER_DENOMINATION_INVALID:
GNUNET_break (0);
return;
case TALER_DENOMINATION_RSA:
- TALER_planchet_blinding_secret_create (ps, TALER_DENOMINATION_RSA, NULL);
+ TALER_planchet_blinding_secret_create (ps,
+ alg_values);
return;
case TALER_DENOMINATION_CS:
// Will be set in a later stage for Clause Blind Schnorr Scheme
@@ -275,6 +276,8 @@ TALER_planchet_prepare (const struct TALER_DenominationPublicKey *dk,
{
struct TALER_CoinSpendPublicKeyP coin_pub;
+ GNUNET_assert (alg_values->cipher == dk->cipher);
+
GNUNET_CRYPTO_eddsa_key_get_public (&ps->coin_priv.eddsa_priv,
&coin_pub.eddsa_pub);
@@ -286,7 +289,7 @@ TALER_planchet_prepare (const struct TALER_DenominationPublicKey *dk,
&ps->blinding_key,
NULL, /* FIXME-Oec */
&coin_pub,
- NULL, /* RSA has no alg Values */
+ alg_values,
c_hash,
&pd->blinded_planchet))
{
@@ -320,6 +323,23 @@ TALER_planchet_prepare (const struct TALER_DenominationPublicKey *dk,
}
+void
+TALER_blinded_planchet_free (struct TALER_BlindedPlanchet *blinded_planchet)
+{
+ switch (blinded_planchet->cipher)
+ {
+ case TALER_DENOMINATION_RSA:
+ GNUNET_free (blinded_planchet->details.rsa_blinded_planchet.blinded_msg);
+ break;
+ case TALER_DENOMINATION_CS:
+ // nothing to do for CS
+ break;
+ default:
+ GNUNET_break (0);
+ }
+}
+
+
enum GNUNET_GenericReturnValue
TALER_planchet_to_coin (const struct TALER_DenominationPublicKey *dk,
const struct
@@ -471,14 +491,28 @@ TALER_refresh_get_commitment (struct TALER_RefreshCommitmentP *rc,
}
-void
-TALER_coin_ev_hash (const void *coin_ev,
- size_t coin_ev_size,
+enum GNUNET_GenericReturnValue
+TALER_coin_ev_hash (const struct TALER_BlindedPlanchet *blinded_planchet,
struct TALER_BlindedCoinHash *bch)
{
- GNUNET_CRYPTO_hash (coin_ev,
- coin_ev_size,
- &bch->hash);
+ switch (blinded_planchet->cipher)
+ {
+ case TALER_DENOMINATION_RSA:
+ GNUNET_CRYPTO_hash (
+ blinded_planchet->details.rsa_blinded_planchet.blinded_msg,
+ blinded_planchet->details.rsa_blinded_planchet.blinded_msg_size,
+ &bch->hash);
+ return GNUNET_OK;
+ case TALER_DENOMINATION_CS:
+ GNUNET_CRYPTO_hash (
+ &blinded_planchet->details.cs_blinded_planchet,
+ sizeof (blinded_planchet->details.cs_blinded_planchet),
+ &bch->hash);
+ return GNUNET_OK;
+ default:
+ GNUNET_break (0);
+ return GNUNET_SYSERR;
+ }
}