From 12a9b08c6f8c31f684239a30fc39acc9189c6571 Mon Sep 17 00:00:00 2001
From: Florian Dold <florian@dold.me>
Date: Mon, 18 Dec 2023 19:25:26 +0100
Subject: wallet-core: towards properly handling peer-pull-debit expiry

---
 .../src/crypto/cryptoImplementation.ts             | 28 ++++++++++++++++++++++
 .../taler-wallet-core/src/crypto/cryptoTypes.ts    | 10 ++++++++
 2 files changed, 38 insertions(+)

(limited to 'packages/taler-wallet-core/src/crypto')

diff --git a/packages/taler-wallet-core/src/crypto/cryptoImplementation.ts b/packages/taler-wallet-core/src/crypto/cryptoImplementation.ts
index 36ca128ae..7c6b142fb 100644
--- a/packages/taler-wallet-core/src/crypto/cryptoImplementation.ts
+++ b/packages/taler-wallet-core/src/crypto/cryptoImplementation.ts
@@ -103,6 +103,8 @@ import {
   EncryptContractForDepositResponse,
   EncryptContractRequest,
   EncryptContractResponse,
+  SignCoinHistoryRequest,
+  SignCoinHistoryResponse,
   SignDeletePurseRequest,
   SignDeletePurseResponse,
   SignPurseMergeRequest,
@@ -243,6 +245,10 @@ export interface TalerCryptoInterface {
   signDeletePurse(
     req: SignDeletePurseRequest,
   ): Promise<SignDeletePurseResponse>;
+
+  signCoinHistoryRequest(
+    req: SignCoinHistoryRequest,
+  ): Promise<SignCoinHistoryResponse>;
 }
 
 /**
@@ -427,6 +433,11 @@ export const nullCrypto: TalerCryptoInterface = {
   ): Promise<SignDeletePurseResponse> {
     throw new Error("Function not implemented.");
   },
+  signCoinHistoryRequest: function (
+    req: SignCoinHistoryRequest,
+  ): Promise<SignCoinHistoryResponse> {
+    throw new Error("Function not implemented.");
+  },
 };
 
 export type WithArg<X> = X extends (req: infer T) => infer R
@@ -1705,6 +1716,23 @@ export const nativeCryptoR: TalerCryptoInterfaceR = {
       sig: sigResp.sig,
     };
   },
+  async signCoinHistoryRequest(
+    tci: TalerCryptoInterfaceR,
+    req: SignCoinHistoryRequest,
+  ): Promise<SignCoinHistoryResponse> {
+    const coinHistorySigBlob = buildSigPS(
+      TalerSignaturePurpose.WALLET_COIN_HISTORY,
+    )
+      .put(bufferForUint64(req.startOffset))
+      .build();
+    const sigResp = await tci.eddsaSign(tci, {
+      msg: encodeCrock(coinHistorySigBlob),
+      priv: req.coinPriv,
+    });
+    return {
+      sig: sigResp.sig,
+    };
+  },
 };
 
 export interface EddsaSignRequest {
diff --git a/packages/taler-wallet-core/src/crypto/cryptoTypes.ts b/packages/taler-wallet-core/src/crypto/cryptoTypes.ts
index 2204fac71..df25b87e4 100644
--- a/packages/taler-wallet-core/src/crypto/cryptoTypes.ts
+++ b/packages/taler-wallet-core/src/crypto/cryptoTypes.ts
@@ -279,6 +279,16 @@ export interface SignDeletePurseResponse {
   sig: EddsaSignatureString;
 }
 
+export interface SignCoinHistoryRequest {
+  coinPub: string;
+  coinPriv: string;
+  startOffset: number;
+}
+
+export interface SignCoinHistoryResponse {
+  sig: EddsaSignatureString;
+}
+
 export interface SignReservePurseCreateRequest {
   mergeTimestamp: TalerProtocolTimestamp;
 
-- 
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