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author | Christian Grothoff <christian@grothoff.org> | 2021-10-31 17:56:56 +0100 |
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committer | Christian Grothoff <christian@grothoff.org> | 2021-10-31 17:56:56 +0100 |
commit | 3eae999efc0cb923aebd2bf7214c5f4093217d4f (patch) | |
tree | 9581fa718e127a79779ee1a095d4e017549f2b5e /src/json/json_helper.c | |
parent | de8e0907aadecf4f97c0eb8230217751f3fd44a1 (diff) | |
download | exchange-3eae999efc0cb923aebd2bf7214c5f4093217d4f.tar.xz |
distinguish between blind and non-blind denomination signatures
Diffstat (limited to 'src/json/json_helper.c')
-rw-r--r-- | src/json/json_helper.c | 98 |
1 files changed, 96 insertions, 2 deletions
diff --git a/src/json/json_helper.c b/src/json/json_helper.c index d509f4eff..1684e7f35 100644 --- a/src/json/json_helper.c +++ b/src/json/json_helper.c @@ -433,7 +433,7 @@ TALER_JSON_spec_relative_time (const char *name, * @param[out] spec where to write the data * @return #GNUNET_OK upon successful parsing; #GNUNET_SYSERR upon error */ -static int +static enum GNUNET_GenericReturnValue parse_denom_pub (void *cls, json_t *root, struct GNUNET_JSON_Specification *spec) @@ -528,7 +528,7 @@ TALER_JSON_spec_denom_pub (const char *field, * @param[out] spec where to write the data * @return #GNUNET_OK upon successful parsing; #GNUNET_SYSERR upon error */ -static int +static enum GNUNET_GenericReturnValue parse_denom_sig (void *cls, json_t *root, struct GNUNET_JSON_Specification *spec) @@ -614,6 +614,100 @@ TALER_JSON_spec_denom_sig (const char *field, /** + * Parse given JSON object to blinded denomination signature. + * + * @param cls closure, NULL + * @param root the json object representing data + * @param[out] spec where to write the data + * @return #GNUNET_OK upon successful parsing; #GNUNET_SYSERR upon error + */ +static enum GNUNET_GenericReturnValue +parse_blinded_denom_sig (void *cls, + json_t *root, + struct GNUNET_JSON_Specification *spec) +{ + struct TALER_BlindedDenominationSignature *denom_sig = spec->ptr; + uint32_t cipher; + struct GNUNET_JSON_Specification dspec[] = { + GNUNET_JSON_spec_uint32 ("cipher", + &cipher), + GNUNET_JSON_spec_end () + }; + const char *emsg; + unsigned int eline; + + if (GNUNET_OK != + GNUNET_JSON_parse (root, + dspec, + &emsg, + &eline)) + { + GNUNET_break_op (0); + return GNUNET_SYSERR; + } + denom_sig->cipher = (enum TALER_DenominationCipher) cipher; + switch (denom_sig->cipher) + { + case TALER_DENOMINATION_RSA: + { + struct GNUNET_JSON_Specification ispec[] = { + GNUNET_JSON_spec_rsa_signature ( + "blinded_rsa_signature", + &denom_sig->details.blinded_rsa_signature), + GNUNET_JSON_spec_end () + }; + + if (GNUNET_OK != + GNUNET_JSON_parse (root, + ispec, + &emsg, + &eline)) + { + GNUNET_break_op (0); + return GNUNET_SYSERR; + } + return GNUNET_OK; + } + default: + GNUNET_break_op (0); + return GNUNET_SYSERR; + } +} + + +/** + * Cleanup data left from parsing denomination public key. + * + * @param cls closure, NULL + * @param[out] spec where to free the data + */ +static void +clean_blinded_denom_sig (void *cls, + struct GNUNET_JSON_Specification *spec) +{ + struct TALER_BlindedDenominationSignature *denom_sig = spec->ptr; + + TALER_blinded_denom_sig_free (denom_sig); +} + + +struct GNUNET_JSON_Specification +TALER_JSON_spec_blinded_denom_sig ( + const char *field, + struct TALER_BlindedDenominationSignature *sig) +{ + struct GNUNET_JSON_Specification ret = { + .parser = &parse_blinded_denom_sig, + .cleaner = &clean_blinded_denom_sig, + .field = field, + .ptr = sig + }; + + return ret; +} + + +/** * Closure for #parse_i18n_string. */ struct I18nContext |