Add silentpayments_test_outputs

jlest01 · Aug 2, 2024 · 4ae75ac · 4ae75ac
1 parent 097f607
commit 4ae75ac
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Showing 3 changed files with 40 additions and 6 deletions.
diff --git a/examples/silentpayments.c b/examples/silentpayments.c
@@ -116,6 +116,7 @@ int main(void) {
     secp256k1_xonly_pubkey out_pubkeys[N_TX_OUTPUTS];
     secp256k1_xonly_pubkey *out_pubkeys_ptrs[N_TX_OUTPUTS];
     unsigned char output36[36];
+    secp256k1_xonly_pubkey taproot_outputs[N_TX_INPUTS];
 
     unsigned char randomize[32];
     unsigned char xonly_print[32];
@@ -234,7 +235,9 @@ int main(void) {
             recipient_ptrs, 
             N_TX_OUTPUTS,
             smallest_outpoint,
-            output36
+            sender_seckey_ptrs, N_TX_INPUTS,
+            output36,
+            taproot_outputs
         );
         assert(ret);
 
@@ -256,9 +259,27 @@ int main(void) {
 
         printf("output36:\n");
         print_hex(output36, 36);
-
-        /* printf("out_pubkeys: ");
-        print_hex(out_pubkeys, n_out_pubkeys); */
+
+        for (i = 0; i < N_TX_INPUTS; i++) {
+            secp256k1_xonly_pubkey orignal_pubkey;
+            unsigned char serialized_original_xonly_pubkey[32];
+            unsigned char serialized_xonly_pubkey[32];
+
+            ret = secp256k1_keypair_xonly_pub(ctx, &orignal_pubkey, NULL, &sender_seckeys[i]);
+            assert(ret);
+            ret = secp256k1_xonly_pubkey_serialize(ctx, serialized_original_xonly_pubkey, &orignal_pubkey);
+            assert(ret);
+
+            ret = secp256k1_xonly_pubkey_serialize(ctx, serialized_xonly_pubkey, &taproot_outputs[i]);
+            assert(ret);
+
+            printf("\n");
+            printf("Original Taproot Input %li:\n", i);
+            print_hex(serialized_original_xonly_pubkey, 32);
+            printf("Taproot Output %li:\n", i);
+            print_hex(serialized_xonly_pubkey, 32);
+            printf("\n");
+        }
 
         ret = secp256k1_silentpayments_sender_create_outputs(ctx,
             generated_output_ptrs,

diff --git a/include/secp256k1_silentpayments.h b/include/secp256k1_silentpayments.h
@@ -113,7 +113,10 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_silentpayments_test_out
     const secp256k1_silentpayments_recipient **recipients,
     size_t n_recipients,
     const unsigned char *outpoint_smallest36,
-    unsigned char *output36
+    const secp256k1_keypair * const *taproot_seckeys,
+    size_t n_taproot_seckeys,
+    unsigned char *output36,
+    secp256k1_xonly_pubkey *taproot_outputs
 ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2);
 
 /** Create Silent Payment label tweak and label.

diff --git a/src/modules/silentpayments/main_impl.h b/src/modules/silentpayments/main_impl.h
@@ -154,7 +154,10 @@ int secp256k1_silentpayments_test_outputs(
     const secp256k1_silentpayments_recipient **recipients,
     size_t n_recipients,
     const unsigned char *outpoint_smallest36,
-    unsigned char *output36
+    const secp256k1_keypair * const *taproot_seckeys,
+    size_t n_taproot_seckeys,
+    unsigned char *output36,
+    secp256k1_xonly_pubkey *taproot_outputs
 ) {
     size_t i;
     int ret = 1;
@@ -175,6 +178,13 @@ int secp256k1_silentpayments_test_outputs(
 
     memcpy(output36, outpoint_smallest36, 36);
 
+    for (i = 0; i < n_taproot_seckeys; i++) {
+        ret = secp256k1_keypair_xonly_pub(ctx, &taproot_outputs[i], NULL, taproot_seckeys[i]);
+        if (!ret) {
+            return 0;
+        }
+    }
+
     return ret;
 }