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author | Thien-Thi Nguyen <ttn@gnuvola.org> | 2022-04-17 19:53:17 -0400 |
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committer | Thien-Thi Nguyen <ttn@gnuvola.org> | 2022-04-17 19:53:17 -0400 |
commit | 509657bfef59221a6a113c49330ee06ed66c9da9 (patch) | |
tree | f6be46d7a2b6fa2d56d6744b53bd2f9cddeb1b6b /src/util | |
parent | a7ad5a07e2eb80d942fcfd49a41330146ec36e45 (diff) | |
download | exchange-509657bfef59221a6a113c49330ee06ed66c9da9.tar.xz |
Add abstraction: TALER_merchant_contract_sign
Additionally, this change removes ‘struct TALER_ProposalDataPS’
from the public API.
* src/include/taler_crypto_lib.h
(TALER_merchant_contract_sign): New func decl.
* src/include/taler_signatures.h
(struct TALER_ProposalDataPS): Delete.
* src/util/merchant_signatures.c
(struct TALER_ProposalDataPS): Move here from taler_signatures.h.
(TALER_merchant_contract_sign): New func.
Diffstat (limited to 'src/util')
-rw-r--r-- | src/util/merchant_signatures.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/src/util/merchant_signatures.c b/src/util/merchant_signatures.c index 0a7489f71..84daca2c4 100644 --- a/src/util/merchant_signatures.c +++ b/src/util/merchant_signatures.c @@ -229,4 +229,42 @@ TALER_merchant_pay_verify ( &merchant_pub->eddsa_pub); } + +/** + * The contract sent by the merchant to the wallet. + */ +struct TALER_ProposalDataPS +{ + /** + * Purpose header for the signature over the proposal data + * with purpose #TALER_SIGNATURE_MERCHANT_CONTRACT. + */ + struct GNUNET_CRYPTO_EccSignaturePurpose purpose; + + /** + * Hash of the JSON contract in UTF-8 including 0-termination, + * using JSON_COMPACT | JSON_SORT_KEYS + */ + struct TALER_PrivateContractHashP hash; +}; + +void +TALER_merchant_contract_sign ( + const struct TALER_PrivateContractHashP *h_contract_terms, + const struct TALER_MerchantPrivateKeyP *merch_priv, + struct GNUNET_CRYPTO_EddsaSignature *merch_sig) +{ + struct TALER_ProposalDataPS pdps = { + .purpose.purpose = htonl (TALER_SIGNATURE_MERCHANT_CONTRACT), + .purpose.size = htonl (sizeof (pdps)), + .hash = *h_contract_terms + }; + + GNUNET_CRYPTO_eddsa_sign (&merch_priv->eddsa_priv, + &pdps, + merch_sig); +} + +// NB: "TALER_merchant_contract_verify" not (yet?) needed / not defined. + /* end of merchant_signatures.c */ |