[token-client] use Signersinstead of Signer for confidential tran…

…sfer client functions (solana-labs#7175)

token/cli/src/command.rs

@@ -1604,27 +1604,32 @@ async fn command_transfer(
                 .unwrap();
 
             // setup proofs
+            let create_range_proof_context_signer = &[&range_proof_context_state_account];
+            let create_equality_proof_context_signer = &[&equality_proof_context_state_account];
+            let create_ciphertext_validity_proof_context_signer =
+                &[&ciphertext_validity_proof_context_state_account];
+
             let _ = try_join!(
                 token.confidential_transfer_create_context_state_account(
                     &range_proof_pubkey,
                     &context_state_authority_pubkey,
                     &range_proof_data,
                     true,
-                    &range_proof_context_state_account,
+                    create_range_proof_context_signer
                 ),
                 token.confidential_transfer_create_context_state_account(
                     &equality_proof_pubkey,
                     &context_state_authority_pubkey,
                     &equality_proof_data,
                     false,
-                    &equality_proof_context_state_account,
+                    create_equality_proof_context_signer
                 ),
                 token.confidential_transfer_create_context_state_account(
                     &ciphertext_validity_proof_pubkey,
                     &context_state_authority_pubkey,
                     &ciphertext_validity_proof_data,
                     false,
-                    &ciphertext_validity_proof_context_state_account,
+                    create_ciphertext_validity_proof_context_signer
                 )
             )?;
 
@@ -1655,24 +1660,25 @@ async fn command_transfer(
                 .await?;
 
             // close context state accounts
+            let close_context_state_signer = &[&context_state_authority];
             let _ = try_join!(
                 token.confidential_transfer_close_context_state(
                     &equality_proof_pubkey,
                     &sender,
                     &context_state_authority_pubkey,
-                    &context_state_authority,
+                    close_context_state_signer
                 ),
                 token.confidential_transfer_close_context_state(
                     &ciphertext_validity_proof_pubkey,
                     &sender,
                     &context_state_authority_pubkey,
-                    &context_state_authority,
+                    close_context_state_signer
                 ),
                 token.confidential_transfer_close_context_state(
                     &range_proof_pubkey,
                     &sender,
                     &context_state_authority_pubkey,
-                    &context_state_authority,
+                    close_context_state_signer
                 ),
             )?;
 
@@ -3353,21 +3359,23 @@ async fn command_deposit_withdraw_confidential_tokens(
 
             // set up context state accounts
             let context_state_authority_pubkey = context_state_authority.pubkey();
+            let create_equality_proof_signer = &[&equality_proof_context_state_keypair];
+            let create_range_proof_signer = &[&range_proof_context_state_keypair];
 
             let _ = try_join!(
                 token.confidential_transfer_create_context_state_account(
                     &equality_proof_context_state_pubkey,
                     &context_state_authority_pubkey,
                     &equality_proof_data,
                     false,
-                    &equality_proof_context_state_keypair,
+                    create_equality_proof_signer
                 ),
                 token.confidential_transfer_create_context_state_account(
                     &range_proof_context_state_pubkey,
                     &context_state_authority_pubkey,
                     &range_proof_data,
                     true,
-                    &range_proof_context_state_keypair,
+                    create_range_proof_signer,
                 )
             )?;
 
@@ -3392,18 +3400,19 @@ async fn command_deposit_withdraw_confidential_tokens(
                 .await?;
 
             // close context state account
+            let close_context_state_signer = &[&context_state_authority];
             let _ = try_join!(
                 token.confidential_transfer_close_context_state(
                     &equality_proof_context_state_pubkey,
                     &token_account_address,
                     &context_state_authority_pubkey,
-                    &context_state_authority,
+                    close_context_state_signer
                 ),
                 token.confidential_transfer_close_context_state(
                     &range_proof_context_state_pubkey,
                     &token_account_address,
                     &context_state_authority_pubkey,
-                    &context_state_authority,
+                    close_context_state_signer
                 )
             )?;
 

token/client/src/token.rs

@@ -2271,16 +2271,17 @@ where
     /// Create a record account containing zero-knowledge proof needed for a
     /// confidential transfer.
     pub async fn confidential_transfer_create_record_account<
-        S: Signer,
+        S1: Signer,
+        S2: Signer,
         ZK: Pod + ZkProofData<U>,
         U: Pod,
     >(
         &self,
         record_account: &Pubkey,
         record_authority: &Pubkey,
         proof_data: &ZK,
-        record_account_signer: &S,
-        record_authority_signer: &S,
+        record_account_signer: &S1,
+        record_authority_signer: &S2,
     ) -> TokenResult<Vec<T::Output>> {
         let proof_data = bytes_of(proof_data);
         let space = proof_data
@@ -2326,11 +2327,8 @@ where
         };
 
         let first_ixs = create_record_instructions(true, first_chunk, 0);
-        self.process_ixs(
-            &first_ixs,
-            &[record_account_signer, record_authority_signer],
-        )
-        .await?;
+        let first_ixs_signers: [&dyn Signer; 2] = [record_account_signer, record_authority_signer];
+        self.process_ixs(&first_ixs, &first_ixs_signers).await?;
 
         let subsequent_chunk_size =
             calculate_record_max_chunk_size(create_record_instructions, false);
@@ -2354,28 +2352,28 @@ where
     }
 
     /// Close a record account.
-    pub async fn confidential_transfer_close_record_account<S: Signer>(
+    pub async fn confidential_transfer_close_record_account<S: Signers>(
         &self,
         record_account: &Pubkey,
         record_authority: &Pubkey,
         receiver: &Pubkey,
-        record_authority_signer: &S,
+        signing_keypairs: &S,
     ) -> TokenResult<T::Output> {
         self.process_ixs(
             &[spl_record::instruction::close_account(
                 record_account,
                 record_authority,
                 receiver,
             )],
-            &[record_authority_signer],
+            signing_keypairs,
         )
         .await
     }
 
     /// Create a context state account containing zero-knowledge proof needed
     /// for a confidential transfer instruction.
     pub async fn confidential_transfer_create_context_state_account<
-        S: Signer,
+        S: Signers,
         ZK: Pod + ZkProofData<U>,
         U: Pod,
     >(
@@ -2384,7 +2382,7 @@ where
         context_state_authority: &Pubkey,
         proof_data: &ZK,
         split_account_creation_and_proof_verification: bool,
-        signer: &S,
+        signing_keypairs: &S,
     ) -> TokenResult<T::Output> {
         let instruction_type = zk_proof_type_to_instruction(ZK::PROOF_TYPE)?;
         let space = size_of::<ProofContextState<U>>();
@@ -2410,7 +2408,7 @@ where
                     space as u64,
                     &zk_elgamal_proof_program::id(),
                 )],
-                &[signer],
+                signing_keypairs,
             )
             .await?;
 
@@ -2443,14 +2441,14 @@ where
                     ),
                     instruction_type.encode_verify_proof(Some(context_state_info), proof_data),
                 ],
-                &[signer],
+                signing_keypairs,
             )
             .await
         }
     }
 
     /// Close a ZK Token proof program context state
-    pub async fn confidential_transfer_close_context_state<S: Signer>(
+    pub async fn confidential_transfer_close_context_state<S: Signers>(
         &self,
         context_state_account: &Pubkey,
         lamport_destination_account: &Pubkey,
@@ -2467,7 +2465,7 @@ where
                 context_state_info,
                 lamport_destination_account,
             )],
-            &[signing_keypairs],
+            signing_keypairs,
         )
         .await
     }