diff options
Diffstat (limited to 'packages/taler-wallet-core/src/index.browser.ts')
-rw-r--r-- | packages/taler-wallet-core/src/index.browser.ts | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/packages/taler-wallet-core/src/index.browser.ts b/packages/taler-wallet-core/src/index.browser.ts new file mode 100644 index 000000000..d0b82d3e0 --- /dev/null +++ b/packages/taler-wallet-core/src/index.browser.ts @@ -0,0 +1,72 @@ +/* + This file is part of TALER + (C) 2019 GNUnet e.V. + + TALER is free software; you can redistribute it and/or modify it under the + terms of the GNU General Public License as published by the Free Software + Foundation; either version 3, or (at your option) any later version. + + TALER is distributed in the hope that it will be useful, but WITHOUT ANY + WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR + A PARTICULAR PURPOSE. See the GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along with + TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/> + */ + +export * from "./index.js"; + +import { setPRNG } from './crypto/primitives/nacl-fast.js'; +// export default API; + +function cleanup(arr: Uint8Array): void { + for (let i = 0; i < arr.length; i++) arr[i] = 0; +} + +// Initialize PRNG if environment provides CSPRNG. +// If not, methods calling randombytes will throw. +// @ts-ignore-error +const cr = typeof self !== "undefined" ? self.crypto || self.msCrypto : null; + +const QUOTA = 65536; +setPRNG(function (x: Uint8Array, n: number) { + let i; + const v = new Uint8Array(n); + for (i = 0; i < n; i += QUOTA) { + cr.getRandomValues(v.subarray(i, i + Math.min(n - i, QUOTA))); + } + for (i = 0; i < n; i++) x[i] = v[i]; + cleanup(v); +}); +// function initPRNG() { +// // Initialize PRNG if environment provides CSPRNG. +// // If not, methods calling randombytes will throw. +// // @ts-ignore-error +// const cr = typeof self !== "undefined" ? self.crypto || self.msCrypto : null; +// if (cr && cr.getRandomValues) { +// // Browsers. +// const QUOTA = 65536; +// setPRNG(function (x: Uint8Array, n: number) { +// let i; +// const v = new Uint8Array(n); +// for (i = 0; i < n; i += QUOTA) { +// cr.getRandomValues(v.subarray(i, i + Math.min(n - i, QUOTA))); +// } +// for (i = 0; i < n; i++) x[i] = v[i]; +// cleanup(v); +// }); +// } else if (typeof require !== "undefined") { +// // Node.js. +// // eslint-disable-next-line @typescript-eslint/no-var-requires +// const cr = require("crypto"); +// if (cr && cr.randomBytes) { +// setPRNG(function (x: Uint8Array, n: number) { +// const v = cr.randomBytes(n); +// for (let i = 0; i < n; i++) x[i] = v[i]; +// cleanup(v); +// }); +// } +// } +// } + +// initPRNG();
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