[gnunet] branch master updated: add pack helper for blinded sig

[gnunet]

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christian-blaettler pushed a commit to branch master
in repository gnunet.

The following commit(s) were added to refs/heads/master by this push:
     new dbfd21c2f add pack helper for blinded sig
dbfd21c2f is described below

commit dbfd21c2f14d439ce897edb427222a4445a07072
Author: Christian Blättler <blatc2@bfh.ch>
AuthorDate: Mon May 6 21:11:35 2024 +0200

    add pack helper for blinded sig
---
 src/include/gnunet_json_lib.h | 12 ++++++++++++
 src/lib/json/json_helper.c    |  2 ++
 src/lib/json/json_pack.c      | 37 +++++++++++++++++++++++++++++++++++++
 3 files changed, 51 insertions(+)

diff --git a/src/include/gnunet_json_lib.h b/src/include/gnunet_json_lib.h
index 44dbf8965..e9c17eef9 100644
--- a/src/include/gnunet_json_lib.h
+++ b/src/include/gnunet_json_lib.h
@@ -1003,6 +1003,18 @@ GNUNET_JSON_pack_blinded_message (const char *name,
                                   const struct GNUNET_CRYPTO_BlindedMessage 
*msg);
 
 
+/**
+ * Generate packer instruction for a JSON field of type
+ * blinded signature.
+ *
+ * @param name name of the field to add to the object
+ * @param sig blinded signature
+ * @return json pack specification
+ */
+struct GNUNET_JSON_PackSpec
+GNUNET_JSON_pack_blinded_sig (const char *name,
+                              const struct GNUNET_CRYPTO_BlindedSignature 
*sig);
+
 #endif
 
 /* end of gnunet_json_lib.h */
diff --git a/src/lib/json/json_helper.c b/src/lib/json/json_helper.c
index a5adcddc6..ce73fb316 100644
--- a/src/lib/json/json_helper.c
+++ b/src/lib/json/json_helper.c
@@ -1249,6 +1249,8 @@ parse_blinded_message (void *cls,
     {
       struct GNUNET_JSON_Specification ispec[] = {
         GNUNET_JSON_spec_varsize (
+          /* TODO: Change this field name to something
+                   more generic / pass in as argument. */
           "rsa_blinded_planchet",
           &blinded_message->details.rsa_blinded_message.blinded_msg,
           &blinded_message->details.rsa_blinded_message.blinded_msg_size),
diff --git a/src/lib/json/json_pack.c b/src/lib/json/json_pack.c
index 7b41a967e..d298e6efe 100644
--- a/src/lib/json/json_pack.c
+++ b/src/lib/json/json_pack.c
@@ -440,4 +440,41 @@ GNUNET_JSON_pack_blinded_message (const char *name,
   return ps;
 }
 
+
+struct GNUNET_JSON_PackSpec
+GNUNET_JSON_pack_blinded_sig (
+  const char *name,
+  const struct GNUNET_CRYPTO_BlindedSignature *sig)
+{
+  struct GNUNET_JSON_PackSpec ps = {
+    .field_name = name,
+  };
+
+  if (NULL == sig)
+    return ps;
+  switch (sig->cipher)
+  {
+  case GNUNET_CRYPTO_BSA_INVALID:
+    break;
+  case GNUNET_CRYPTO_BSA_RSA:
+    ps.object = GNUNET_JSON_PACK (
+      GNUNET_JSON_pack_string ("cipher",
+                               "RSA"),
+      GNUNET_JSON_pack_rsa_signature ("blinded_rsa_signature",
+                                      sig->details.blinded_rsa_signature));
+    return ps;
+  case GNUNET_CRYPTO_BSA_CS:
+    ps.object = GNUNET_JSON_PACK (
+      GNUNET_JSON_pack_string ("cipher",
+                               "CS"),
+      GNUNET_JSON_pack_uint64 ("b",
+                               sig->details.blinded_cs_answer.b),
+      GNUNET_JSON_pack_data_auto ("s",
+                                  &sig->details.blinded_cs_answer.s_scalar));
+    return ps;
+  }
+  GNUNET_assert (0);
+  return ps;
+}
+
 /* end of json_pack.c */

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