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-rw-r--r--src/crypto/nativeCrypto.ts140
1 files changed, 0 insertions, 140 deletions
diff --git a/src/crypto/nativeCrypto.ts b/src/crypto/nativeCrypto.ts
deleted file mode 100644
index 306d22009..000000000
--- a/src/crypto/nativeCrypto.ts
+++ /dev/null
@@ -1,140 +0,0 @@
-/*
- This file is part of GNU Taler
- (C) 2019 GNUnet e.V.
-
- GNU 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.
-
- GNU 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
- GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
- */
-
-/**
- * Native implementation of GNU Taler crypto.
- */
-
-let isNode;
-
-let myGetRandom: (n: number) => ArrayBuffer;
-
-if (require) {
- // node.js
- const cr = require("crypto");
- myGetRandom = (n: number) => {
- const buf = cr.randomBytes(n);
- return Uint8Array.from(buf);
- }
-} else {
- // Browser
- myGetRandom = (n: number) => {
- const ret = new Uint8Array(n);
- window.crypto.getRandomValues(ret);
- return ret;
- }
-}
-
-export function getRandomBytes(n: number): ArrayBuffer {
- return myGetRandom(n);
-}
-
-const encTable = "0123456789ABCDEFGHJKMNPQRSTVWXYZ";
-
-class EncodingError extends Error {
- constructor() {
- super("Encoding error");
- Object.setPrototypeOf(this, EncodingError.prototype);
- }
-}
-
-function getValue(chr: string): number {
- let a = chr;
- switch (chr) {
- case "O":
- case "o":
- a = "0;";
- break;
- case "i":
- case "I":
- case "l":
- case "L":
- a = "1";
- break;
- case "u":
- case "U":
- a = "V";
- }
-
- if (a >= "0" && a <= "9") {
- return a.charCodeAt(0) - "0".charCodeAt(0);
- }
-
- if (a >= "a" && a <= "z") a = a.toUpperCase();
- let dec = 0;
- if (a >= "A" && a <= "Z") {
- if ("I" < a) dec++;
- if ("L" < a) dec++;
- if ("O" < a) dec++;
- if ("U" < a) dec++;
- return a.charCodeAt(0) - "A".charCodeAt(0) + 10 - dec;
- }
- throw new EncodingError();
-}
-
-export function encodeCrock(data: ArrayBuffer): string {
- const dataBytes = new Uint8Array(data);
- let sb = "";
- const size = data.byteLength;
- let bitBuf = 0;
- let numBits = 0;
- let pos = 0;
- while (pos < size || numBits > 0) {
- if (pos < size && numBits < 5) {
- const d = dataBytes[pos++];
- bitBuf = (bitBuf << 8) | d;
- numBits += 8;
- }
- if (numBits < 5) {
- // zero-padding
- bitBuf = bitBuf << (5 - numBits);
- numBits = 5;
- }
- const v = (bitBuf >>> (numBits - 5)) & 31;
- sb += encTable[v];
- numBits -= 5;
- }
- return sb;
-}
-
-export function decodeCrock(encoded: string): Uint8Array {
- const size = encoded.length;
- let bitpos = 0;
- let bitbuf = 0;
- let readPosition = 0;
- const outLen = Math.floor((size * 5) / 8);
- const out = new Uint8Array(outLen);
- let outPos = 0;
-
- while (readPosition < size || bitpos > 0) {
- //println("at position $readPosition with bitpos $bitpos")
- if (readPosition < size) {
- const v = getValue(encoded[readPosition++]);
- bitbuf = (bitbuf << 5) | v;
- bitpos += 5;
- }
- while (bitpos >= 8) {
- const d = (bitbuf >>> (bitpos - 8)) & 0xff;
- out[outPos++] = d;
- bitpos -= 8;
- }
- if (readPosition == size && bitpos > 0) {
- bitbuf = (bitbuf << (8 - bitpos)) & 0xff;
- bitpos = bitbuf == 0 ? 0 : 8;
- }
- }
- return out;
-}