diff options
Diffstat (limited to 'src/util/test_crypto.c')
| -rw-r--r-- | src/util/test_crypto.c | 34 |
1 files changed, 33 insertions, 1 deletions
diff --git a/src/util/test_crypto.c b/src/util/test_crypto.c index 94d3167e3..fbf30e3a4 100644 --- a/src/util/test_crypto.c +++ b/src/util/test_crypto.c @@ -176,6 +176,38 @@ test_planchets_rsa (void) /** + * @brief Function for CS signatures to derive public R_0 and R_1 + * + * @param nonce withdraw nonce from a client + * @param denom_priv denomination privkey as long-term secret + * @param r_pub the resulting R_0 and R_1 + * @return enum GNUNET_GenericReturnValue + */ +static enum GNUNET_GenericReturnValue +derive_r_public ( + const struct TALER_CsNonce *nonce, + const struct TALER_DenominationPrivateKey *denom_priv, + struct TALER_DenominationCSPublicRPairP *r_pub) +{ + struct GNUNET_CRYPTO_CsRSecret r[2]; + + if (denom_priv->cipher != TALER_DENOMINATION_CS) + { + GNUNET_break (0); + return GNUNET_SYSERR; + } + GNUNET_CRYPTO_cs_r_derive (&nonce->nonce, + &denom_priv->details.cs_private_key, + r); + GNUNET_CRYPTO_cs_r_get_public (&r[0], + &r_pub->r_pub[0]); + GNUNET_CRYPTO_cs_r_get_public (&r[1], + &r_pub->r_pub[1]); + return GNUNET_OK; +} + + +/** * Test the basic planchet functionality of creating a fresh planchet with CS denomination * and extracting the respective signature. * @@ -207,7 +239,7 @@ test_planchets_cs (void) &ps, &pd.blinded_planchet.details.cs_blinded_planchet.nonce); GNUNET_assert (GNUNET_OK == - TALER_denom_cs_derive_r_public ( + derive_r_public ( &pd.blinded_planchet.details.cs_blinded_planchet.nonce, &dk_priv, &alg_values.details.cs_values)); |