clause schnorr

packages/taler-util/src/talerCrypto.ts

@@ -616,8 +616,21 @@ export function hashDenomPub(pub: DenominationPubKey): Uint8Array {
     return nacl.hash(uint8ArrayBuf);
   } else if (pub.cipher === DenomKeyType.LegacyRsa) {
     return hash(decodeCrock(pub.rsa_public_key));
+  } else if (pub.cipher === DenomKeyType.ClauseSchnorr) {
+    const pubBuf = decodeCrock(pub.cs_public_key);
+    const hashInputBuf = new ArrayBuffer(pubBuf.length + 4 + 4);
+    const uint8ArrayBuf = new Uint8Array(hashInputBuf);
+    const dv = new DataView(hashInputBuf);
+    dv.setUint32(0, pub.age_mask ?? 0);
+    dv.setUint32(4, pub.cipher);
+    uint8ArrayBuf.set(pubBuf, 8);
+    return nacl.hash(uint8ArrayBuf);
   } else {
-    throw Error(`unsupported cipher (${pub.cipher}), unable to hash`);
+    throw Error(
+      `unsupported cipher (${
+        (pub as DenominationPubKey).cipher
+      }), unable to hash`,
+    );
   }
 }
 

packages/taler-util/src/talerTypes.ts

@@ -1123,7 +1123,8 @@ export interface RsaDenominationPubKey {
 
 export interface CsDenominationPubKey {
   cipher: DenomKeyType.ClauseSchnorr;
-  // FIXME: finish definition
+  age_mask: number;
+  cs_public_key: string;
 }
 
 export namespace DenominationPubKey {
@@ -1151,6 +1152,16 @@ export namespace DenominationPubKey {
         return 1;
       }
       return strcmp(p1.rsa_public_key, p2.rsa_public_key);
+    } else if (
+      p1.cipher === DenomKeyType.ClauseSchnorr &&
+      p2.cipher === DenomKeyType.ClauseSchnorr
+    ) {
+      if ((p1.age_mask ?? 0) < (p2.age_mask ?? 0)) {
+        return -1;
+      } else if ((p1.age_mask ?? 0) > (p2.age_mask ?? 0)) {
+        return 1;
+      }
+      return strcmp(p1.cs_public_key, p2.cs_public_key);
     } else {
       throw Error("unsupported cipher");
     }
@@ -1171,6 +1182,7 @@ export const codecForDenominationPubKey = () =>
   buildCodecForUnion<DenominationPubKey>()
     .discriminateOn("cipher")
     .alternative(1, codecForRsaDenominationPubKey())
+    .alternative(2, codecForCsDenominationPubKey())
     .alternative(3, codecForLegacyRsaDenominationPubKey())
     .build("DenominationPubKey");
 
@@ -1186,6 +1198,12 @@ export const codecForLegacyRsaDenominationPubKey = () =>
     .property("rsa_public_key", codecForString())
     .build("LegacyRsaDenominationPubKey");
 
+export const codecForCsDenominationPubKey = () =>
+  buildCodecForObject<CsDenominationPubKey>()
+    .property("cipher", codecForConstNumber(2))
+    .property("cs_public_key", codecForString())
+    .build("CsDenominationPubKey");
+
 export const codecForBankWithdrawalOperationPostResponse =
   (): Codec<BankWithdrawalOperationPostResponse> =>
     buildCodecForObject<BankWithdrawalOperationPostResponse>()

packages/taler-wallet-cli/src/harness/denomStructures.ts

@@ -14,7 +14,7 @@
  GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
  */
 
-export interface CoinConfig {
+export interface CoinCoinfigCommon {
   name: string;
   value: string;
   durationWithdraw: string;
@@ -24,10 +24,24 @@ export interface CoinConfig {
   feeDeposit: string;
   feeRefresh: string;
   feeRefund: string;
+}
+
+export interface CoinConfigRsa extends CoinCoinfigCommon {
+  cipher: "RSA";
   rsaKeySize: number;
 }
 
-const coinCommon = {
+/**
+ * Clause Schnorr coin config.
+ */
+export interface CoinConfigCs extends CoinCoinfigCommon {
+  cipher: "CS";
+}
+
+export type CoinConfig = CoinConfigRsa | CoinConfigCs;
+
+const coinRsaCommon = {
+  cipher: "RSA" as const,
   durationLegal: "3 years",
   durationSpend: "2 years",
   durationWithdraw: "7 days",
@@ -35,7 +49,7 @@ const coinCommon = {
 };
 
 export const coin_ct1 = (curr: string): CoinConfig => ({
-  ...coinCommon,
+  ...coinRsaCommon,
   name: `${curr}_ct1`,
   value: `${curr}:0.01`,
   feeDeposit: `${curr}:0.00`,
@@ -45,7 +59,7 @@ export const coin_ct1 = (curr: string): CoinConfig => ({
 });
 
 export const coin_ct10 = (curr: string): CoinConfig => ({
-  ...coinCommon,
+  ...coinRsaCommon,
   name: `${curr}_ct10`,
   value: `${curr}:0.10`,
   feeDeposit: `${curr}:0.01`,
@@ -55,7 +69,7 @@ export const coin_ct10 = (curr: string): CoinConfig => ({
 });
 
 export const coin_u1 = (curr: string): CoinConfig => ({
-  ...coinCommon,
+  ...coinRsaCommon,
   name: `${curr}_u1`,
   value: `${curr}:1`,
   feeDeposit: `${curr}:0.02`,
@@ -65,7 +79,7 @@ export const coin_u1 = (curr: string): CoinConfig => ({
 });
 
 export const coin_u2 = (curr: string): CoinConfig => ({
-  ...coinCommon,
+  ...coinRsaCommon,
   name: `${curr}_u2`,
   value: `${curr}:2`,
   feeDeposit: `${curr}:0.02`,
@@ -75,7 +89,7 @@ export const coin_u2 = (curr: string): CoinConfig => ({
 });
 
 export const coin_u4 = (curr: string): CoinConfig => ({
-  ...coinCommon,
+  ...coinRsaCommon,
   name: `${curr}_u4`,
   value: `${curr}:4`,
   feeDeposit: `${curr}:0.02`,
@@ -85,7 +99,7 @@ export const coin_u4 = (curr: string): CoinConfig => ({
 });
 
 export const coin_u8 = (curr: string): CoinConfig => ({
-  ...coinCommon,
+  ...coinRsaCommon,
   name: `${curr}_u8`,
   value: `${curr}:8`,
   feeDeposit: `${curr}:0.16`,
@@ -95,7 +109,7 @@ export const coin_u8 = (curr: string): CoinConfig => ({
 });
 
 const coin_u10 = (curr: string): CoinConfig => ({
-  ...coinCommon,
+  ...coinRsaCommon,
   name: `${curr}_u10`,
   value: `${curr}:10`,
   feeDeposit: `${curr}:0.2`,
@@ -114,16 +128,6 @@ export const defaultCoinConfig = [
   coin_u10,
 ];
 
-const coinCheapCommon = (curr: string) => ({
-  durationLegal: "3 years",
-  durationSpend: "2 years",
-  durationWithdraw: "7 days",
-  rsaKeySize: 1024,
-  feeRefresh: `${curr}:0.2`,
-  feeRefund: `${curr}:0.2`,
-  feeWithdraw: `${curr}:0.2`,
-});
-
 export function makeNoFeeCoinConfig(curr: string): CoinConfig[] {
   const cc: CoinConfig[] = [];
 
@@ -134,6 +138,7 @@ export function makeNoFeeCoinConfig(curr: string): CoinConfig[] {
     const cent = ct % 100;
 
     cc.push({
+      cipher: "RSA",
       durationLegal: "3 years",
       durationSpend: "2 years",
       durationWithdraw: "7 days",

packages/taler-wallet-cli/src/harness/harness.ts

@@ -430,7 +430,14 @@ function setCoin(config: Configuration, c: CoinConfig) {
   config.setString(s, "fee_withdraw", c.feeWithdraw);
   config.setString(s, "fee_refresh", c.feeRefresh);
   config.setString(s, "fee_refund", c.feeRefund);
-  config.setString(s, "rsa_keysize", `${c.rsaKeySize}`);
+  if (c.cipher === "RSA") {
+    config.setString(s, "rsa_keysize", `${c.rsaKeySize}`);
+    config.setString(s, "cipher", "RSA");
+  } else if (c.cipher === "CS") {
+    config.setString(s, "cipher", "CS");
+  } else {
+    throw new Error();
+  }
 }
 
 /**
@@ -1328,6 +1335,7 @@ export class ExchangeService implements ExchangeServiceInterface {
 
   helperCryptoRsaProc: ProcessWrapper | undefined;
   helperCryptoEddsaProc: ProcessWrapper | undefined;
+  helperCryptoCsProc: ProcessWrapper | undefined;
 
   constructor(
     private globalState: GlobalTestState,
@@ -1373,6 +1381,12 @@ export class ExchangeService implements ExchangeServiceInterface {
       await cryptoEddsa.wait();
       this.helperCryptoRsaProc = undefined;
     }
+    const cryptoCs = this.helperCryptoCsProc;
+    if (cryptoCs) {
+      cryptoCs.proc.kill("SIGTERM");
+      await cryptoCs.wait();
+      this.helperCryptoCsProc = undefined;
+    }
   }
 
   /**
@@ -1491,6 +1505,12 @@ export class ExchangeService implements ExchangeServiceInterface {
       `exchange-crypto-eddsa-${this.name}`,
     );
 
+    this.helperCryptoCsProc = this.globalState.spawnService(
+      "taler-exchange-secmod-cs",
+      ["-c", this.configFilename, "-LDEBUG", ...this.timetravelArgArr],
+      `exchange-crypto-cs-${this.name}`,
+    );
+
     this.helperCryptoRsaProc = this.globalState.spawnService(
       "taler-exchange-secmod-rsa",
       ["-c", this.configFilename, "-LDEBUG", ...this.timetravelArgArr],

packages/taler-wallet-cli/src/integrationtests/test-fee-regression.ts

@@ -76,6 +76,7 @@ export async function createMyTestkudosEnvironment(
   await bank.pingUntilAvailable();
 
   const coinCommon = {
+    cipher: "RSA" as const,
     durationLegal: "3 years",
     durationSpend: "2 years",
     durationWithdraw: "7 days",

packages/taler-wallet-cli/src/integrationtests/test-revocation.ts

@@ -27,7 +27,7 @@ import {
   setupDb,
   BankService,
   delayMs,
-  getPayto
+  getPayto,
 } from "../harness/harness.js";
 import {
   withdrawViaBank,
@@ -97,6 +97,7 @@ async function createTestEnvironment(
   await bank.pingUntilAvailable();
 
   const coin_u1: CoinConfig = {
+    cipher: "RSA" as const,
     durationLegal: "3 years",
     durationSpend: "2 years",
     durationWithdraw: "7 days",

packages/taler-wallet-cli/src/integrationtests/testrunner.ts

@@ -14,9 +14,7 @@
  GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
  */
 
-import {
-  minimatch
-} from "@gnu-taler/taler-util";
+import { minimatch } from "@gnu-taler/taler-util";
 import {
   GlobalTestState,
   runTestWithState,
@@ -88,6 +86,7 @@ import { runMerchantSpecPublicOrdersTest } from "./test-merchant-spec-public-ord
 import { runExchangeTimetravelTest } from "./test-exchange-timetravel.js";
 import { runDenomUnofferedTest } from "./test-denom-unoffered.js";
 import { runWithdrawalFakebankTest } from "./test-withdrawal-fakebank.js";
+import { runClauseSchnorrTest } from "./test-clause-schnorr.js";
 
 /**
  * Test runner.
@@ -106,6 +105,7 @@ interface TestMainFunction {
 const allTests: TestMainFunction[] = [
   runBankApiTest,
   runClaimLoopTest,
+  runClauseSchnorrTest,
   runDepositTest,
   runDenomUnofferedTest,
   runExchangeManagementTest,