diff options
Diffstat (limited to 'src/include/taler_crypto_lib.h')
| -rw-r--r-- | src/include/taler_crypto_lib.h | 60 |
1 files changed, 45 insertions, 15 deletions
diff --git a/src/include/taler_crypto_lib.h b/src/include/taler_crypto_lib.h index c521541f..7261d4de 100644 --- a/src/include/taler_crypto_lib.h +++ b/src/include/taler_crypto_lib.h @@ -280,6 +280,37 @@ struct TALER_MasterSignatureP struct GNUNET_CRYPTO_EddsaSignature eddsa_signature; }; +/* + * @brief Type of a list of age groups, represented as bit mask. + * + * The bits set in the mask mark the edges at the beginning of a next age + * group. F.e. for the age groups + * 0-7, 8-9, 10-11, 12-14, 14-15, 16-17, 18-21, 21-* + * the following bits are set: + * + * 31 24 16 8 0 + * | | | | | + * oooooooo oo1oo1o1 o1o1o1o1 ooooooo1 + * + * A value of 0 means that the exchange does not support the extension for + * age-restriction. + */ +struct TALER_AgeMask +{ + uint32_t mask; +}; + +/** + * @brief Age restriction commitment of a coin. + */ +struct TALER_AgeHash +{ + /** + * The commitment is a SHA-256 hash code. + */ + struct GNUNET_ShortHashCode shash; +}; + /** * @brief Type of public keys for Taler coins. The same key material is used @@ -292,6 +323,10 @@ struct TALER_CoinSpendPublicKeyP */ struct GNUNET_CRYPTO_EddsaPublicKey eddsa_pub; + /* + * If age restriction applies to the coin, it must come with a hash of the age commitment + */ + struct TALER_AgeHash age_commitment_hash; }; @@ -346,18 +381,6 @@ struct TALER_RefreshCommitmentP /** - * Age restriction commitment of a coin. - */ -struct TALER_AgeHash -{ - /** - * The commitment is a SHA-256 hash code. - */ - struct GNUNET_ShortHashCode shash; -}; - - -/** * Token used for access control to the merchant's unclaimed * orders. */ @@ -569,7 +592,7 @@ struct TALER_DenominationPublicKey /** * Age restriction mask used for the key. */ - uint32_t age_mask; + struct TALER_AgeMask age_mask; /** * Details, depending on @e cipher. @@ -631,6 +654,11 @@ struct TALER_CoinPublicInfo struct TALER_DenominationHash denom_pub_hash; /** + * Hash of the age commitment. + */ + struct TALER_AgeHash age_commitment_hash; + + /** * (Unblinded) signature over @e coin_pub with @e denom_pub, * which demonstrates that the coin is valid. */ @@ -880,7 +908,7 @@ TALER_blinded_denom_sig_cmp ( */ void TALER_denom_priv_to_pub (const struct TALER_DenominationPrivateKey *denom_priv, - uint32_t age_mask, + const struct TALER_AgeMask age_mask, struct TALER_DenominationPublicKey *denom_pub); @@ -929,7 +957,6 @@ TALER_coin_ev_hash (const void *coin_ev, /** * Compute the hash of a coin. - * FIXME-Oec: add age restriction hash here! * * @param coin_pub public key of the coin * @param[out] coin_h where to write the hash @@ -1020,6 +1047,9 @@ struct TALER_FreshCoin */ struct TALER_CoinSpendPrivateKeyP coin_priv; + /** + * FIXME-Oec: Age-verification vector, as pointer: Dyn alloc! + */ }; |