summaryrefslogtreecommitdiff
path: root/std/util/sha256.ts
diff options
context:
space:
mode:
Diffstat (limited to 'std/util/sha256.ts')
-rw-r--r--std/util/sha256.ts575
1 files changed, 575 insertions, 0 deletions
diff --git a/std/util/sha256.ts b/std/util/sha256.ts
new file mode 100644
index 000000000..02fff94d1
--- /dev/null
+++ b/std/util/sha256.ts
@@ -0,0 +1,575 @@
+/*
+ * Adapted to deno from:
+ *
+ * [js-sha256]{@link https://github.com/emn178/js-sha256}
+ *
+ * @version 0.9.0
+ * @author Chen, Yi-Cyuan [emn178@gmail.com]
+ * @copyright Chen, Yi-Cyuan 2014-2017
+ * @license MIT
+ */
+
+export type Message = string | number[] | ArrayBuffer | Uint8Array;
+
+const ERROR = "input is invalid type";
+const HEX_CHARS = "0123456789abcdef".split("");
+const EXTRA = [-2147483648, 8388608, 32768, 128] as const;
+const SHIFT = [24, 16, 8, 0] as const;
+// prettier-ignore
+// dprint-ignore
+const K = [
+ 0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1,
+ 0x923f82a4, 0xab1c5ed5, 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
+ 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174, 0xe49b69c1, 0xefbe4786,
+ 0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
+ 0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147,
+ 0x06ca6351, 0x14292967, 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
+ 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85, 0xa2bfe8a1, 0xa81a664b,
+ 0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
+ 0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a,
+ 0x5b9cca4f, 0x682e6ff3, 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
+ 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2,
+] as const;
+
+const blocks: number[] = [];
+
+export class Sha256 {
+ #block!: number;
+ #blocks!: number[];
+ #bytes!: number;
+ #finalized!: boolean;
+ #first!: boolean;
+ #h0!: number;
+ #h1!: number;
+ #h2!: number;
+ #h3!: number;
+ #h4!: number;
+ #h5!: number;
+ #h6!: number;
+ #h7!: number;
+ #hashed!: boolean;
+ #hBytes!: number;
+ #is224!: boolean;
+ #lastByteIndex = 0;
+ #start!: number;
+
+ constructor(is224 = false, sharedMemory = false) {
+ this.init(is224, sharedMemory);
+ }
+
+ protected init(is224: boolean, sharedMemory: boolean): void {
+ if (sharedMemory) {
+ blocks[0] = blocks[16] = blocks[1] = blocks[2] = blocks[3] = blocks[4] = blocks[5] = blocks[6] = blocks[7] = blocks[8] = blocks[9] = blocks[10] = blocks[11] = blocks[12] = blocks[13] = blocks[14] = blocks[15] = 0;
+ this.#blocks = blocks;
+ } else {
+ this.#blocks = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0];
+ }
+
+ if (is224) {
+ this.#h0 = 0xc1059ed8;
+ this.#h1 = 0x367cd507;
+ this.#h2 = 0x3070dd17;
+ this.#h3 = 0xf70e5939;
+ this.#h4 = 0xffc00b31;
+ this.#h5 = 0x68581511;
+ this.#h6 = 0x64f98fa7;
+ this.#h7 = 0xbefa4fa4;
+ } else {
+ // 256
+ this.#h0 = 0x6a09e667;
+ this.#h1 = 0xbb67ae85;
+ this.#h2 = 0x3c6ef372;
+ this.#h3 = 0xa54ff53a;
+ this.#h4 = 0x510e527f;
+ this.#h5 = 0x9b05688c;
+ this.#h6 = 0x1f83d9ab;
+ this.#h7 = 0x5be0cd19;
+ }
+
+ this.#block = this.#start = this.#bytes = this.#hBytes = 0;
+ this.#finalized = this.#hashed = false;
+ this.#first = true;
+ this.#is224 = is224;
+ }
+
+ /** Update hash
+ *
+ * @param message The message you want to hash.
+ */
+ update(message: Message): this {
+ if (this.#finalized) {
+ return this;
+ }
+ let msg: string | number[] | Uint8Array | undefined;
+ if (typeof message !== "string") {
+ if (typeof message === "object") {
+ if (message === null) {
+ throw new Error(ERROR);
+ } else if (message instanceof ArrayBuffer) {
+ msg = new Uint8Array(message);
+ } else if (!Array.isArray(message)) {
+ if (!ArrayBuffer.isView(message)) {
+ throw new Error(ERROR);
+ }
+ }
+ } else {
+ throw new Error(ERROR);
+ }
+ }
+ if (msg === undefined) {
+ msg = message as string | number[];
+ }
+ let index = 0;
+ const length = msg.length;
+ const blocks = this.#blocks;
+
+ while (index < length) {
+ let i: number;
+ if (this.#hashed) {
+ this.#hashed = false;
+ blocks[0] = this.#block;
+ blocks[16] = blocks[1] = blocks[2] = blocks[3] = blocks[4] = blocks[5] = blocks[6] = blocks[7] = blocks[8] = blocks[9] = blocks[10] = blocks[11] = blocks[12] = blocks[13] = blocks[14] = blocks[15] = 0;
+ }
+
+ if (typeof msg !== "string") {
+ for (i = this.#start; index < length && i < 64; ++index) {
+ blocks[i >> 2] |= msg[index] << SHIFT[i++ & 3];
+ }
+ } else {
+ for (i = this.#start; index < length && i < 64; ++index) {
+ let code = msg.charCodeAt(index);
+ if (code < 0x80) {
+ blocks[i >> 2] |= code << SHIFT[i++ & 3];
+ } else if (code < 0x800) {
+ blocks[i >> 2] |= (0xc0 | (code >> 6)) << SHIFT[i++ & 3];
+ blocks[i >> 2] |= (0x80 | (code & 0x3f)) << SHIFT[i++ & 3];
+ } else if (code < 0xd800 || code >= 0xe000) {
+ blocks[i >> 2] |= (0xe0 | (code >> 12)) << SHIFT[i++ & 3];
+ blocks[i >> 2] |= (0x80 | ((code >> 6) & 0x3f)) << SHIFT[i++ & 3];
+ blocks[i >> 2] |= (0x80 | (code & 0x3f)) << SHIFT[i++ & 3];
+ } else {
+ code =
+ 0x10000 +
+ (((code & 0x3ff) << 10) | (msg.charCodeAt(++index) & 0x3ff));
+ blocks[i >> 2] |= (0xf0 | (code >> 18)) << SHIFT[i++ & 3];
+ blocks[i >> 2] |= (0x80 | ((code >> 12) & 0x3f)) << SHIFT[i++ & 3];
+ blocks[i >> 2] |= (0x80 | ((code >> 6) & 0x3f)) << SHIFT[i++ & 3];
+ blocks[i >> 2] |= (0x80 | (code & 0x3f)) << SHIFT[i++ & 3];
+ }
+ }
+ }
+
+ this.#lastByteIndex = i;
+ this.#bytes += i - this.#start;
+ if (i >= 64) {
+ this.#block = blocks[16];
+ this.#start = i - 64;
+ this.hash();
+ this.#hashed = true;
+ } else {
+ this.#start = i;
+ }
+ }
+ if (this.#bytes > 4294967295) {
+ this.#hBytes += (this.#bytes / 4294967296) << 0;
+ this.#bytes = this.#bytes % 4294967296;
+ }
+ return this;
+ }
+
+ protected finalize(): void {
+ if (this.#finalized) {
+ return;
+ }
+ this.#finalized = true;
+ const blocks = this.#blocks;
+ const i = this.#lastByteIndex;
+ blocks[16] = this.#block;
+ blocks[i >> 2] |= EXTRA[i & 3];
+ this.#block = blocks[16];
+ if (i >= 56) {
+ if (!this.#hashed) {
+ this.hash();
+ }
+ blocks[0] = this.#block;
+ blocks[16] = blocks[1] = blocks[2] = blocks[3] = blocks[4] = blocks[5] = blocks[6] = blocks[7] = blocks[8] = blocks[9] = blocks[10] = blocks[11] = blocks[12] = blocks[13] = blocks[14] = blocks[15] = 0;
+ }
+ blocks[14] = (this.#hBytes << 3) | (this.#bytes >>> 29);
+ blocks[15] = this.#bytes << 3;
+ this.hash();
+ }
+
+ protected hash(): void {
+ let a = this.#h0;
+ let b = this.#h1;
+ let c = this.#h2;
+ let d = this.#h3;
+ let e = this.#h4;
+ let f = this.#h5;
+ let g = this.#h6;
+ let h = this.#h7;
+ const blocks = this.#blocks;
+ let s0: number;
+ let s1: number;
+ let maj: number;
+ let t1: number;
+ let t2: number;
+ let ch: number;
+ let ab: number;
+ let da: number;
+ let cd: number;
+ let bc: number;
+
+ for (let j = 16; j < 64; ++j) {
+ // rightrotate
+ t1 = blocks[j - 15];
+ s0 = ((t1 >>> 7) | (t1 << 25)) ^ ((t1 >>> 18) | (t1 << 14)) ^ (t1 >>> 3);
+ t1 = blocks[j - 2];
+ s1 =
+ ((t1 >>> 17) | (t1 << 15)) ^ ((t1 >>> 19) | (t1 << 13)) ^ (t1 >>> 10);
+ blocks[j] = (blocks[j - 16] + s0 + blocks[j - 7] + s1) << 0;
+ }
+
+ bc = b & c;
+ for (let j = 0; j < 64; j += 4) {
+ if (this.#first) {
+ if (this.#is224) {
+ ab = 300032;
+ t1 = blocks[0] - 1413257819;
+ h = (t1 - 150054599) << 0;
+ d = (t1 + 24177077) << 0;
+ } else {
+ ab = 704751109;
+ t1 = blocks[0] - 210244248;
+ h = (t1 - 1521486534) << 0;
+ d = (t1 + 143694565) << 0;
+ }
+ this.#first = false;
+ } else {
+ s0 =
+ ((a >>> 2) | (a << 30)) ^
+ ((a >>> 13) | (a << 19)) ^
+ ((a >>> 22) | (a << 10));
+ s1 =
+ ((e >>> 6) | (e << 26)) ^
+ ((e >>> 11) | (e << 21)) ^
+ ((e >>> 25) | (e << 7));
+ ab = a & b;
+ maj = ab ^ (a & c) ^ bc;
+ ch = (e & f) ^ (~e & g);
+ t1 = h + s1 + ch + K[j] + blocks[j];
+ t2 = s0 + maj;
+ h = (d + t1) << 0;
+ d = (t1 + t2) << 0;
+ }
+ s0 =
+ ((d >>> 2) | (d << 30)) ^
+ ((d >>> 13) | (d << 19)) ^
+ ((d >>> 22) | (d << 10));
+ s1 =
+ ((h >>> 6) | (h << 26)) ^
+ ((h >>> 11) | (h << 21)) ^
+ ((h >>> 25) | (h << 7));
+ da = d & a;
+ maj = da ^ (d & b) ^ ab;
+ ch = (h & e) ^ (~h & f);
+ t1 = g + s1 + ch + K[j + 1] + blocks[j + 1];
+ t2 = s0 + maj;
+ g = (c + t1) << 0;
+ c = (t1 + t2) << 0;
+ s0 =
+ ((c >>> 2) | (c << 30)) ^
+ ((c >>> 13) | (c << 19)) ^
+ ((c >>> 22) | (c << 10));
+ s1 =
+ ((g >>> 6) | (g << 26)) ^
+ ((g >>> 11) | (g << 21)) ^
+ ((g >>> 25) | (g << 7));
+ cd = c & d;
+ maj = cd ^ (c & a) ^ da;
+ ch = (g & h) ^ (~g & e);
+ t1 = f + s1 + ch + K[j + 2] + blocks[j + 2];
+ t2 = s0 + maj;
+ f = (b + t1) << 0;
+ b = (t1 + t2) << 0;
+ s0 =
+ ((b >>> 2) | (b << 30)) ^
+ ((b >>> 13) | (b << 19)) ^
+ ((b >>> 22) | (b << 10));
+ s1 =
+ ((f >>> 6) | (f << 26)) ^
+ ((f >>> 11) | (f << 21)) ^
+ ((f >>> 25) | (f << 7));
+ bc = b & c;
+ maj = bc ^ (b & d) ^ cd;
+ ch = (f & g) ^ (~f & h);
+ t1 = e + s1 + ch + K[j + 3] + blocks[j + 3];
+ t2 = s0 + maj;
+ e = (a + t1) << 0;
+ a = (t1 + t2) << 0;
+ }
+
+ this.#h0 = (this.#h0 + a) << 0;
+ this.#h1 = (this.#h1 + b) << 0;
+ this.#h2 = (this.#h2 + c) << 0;
+ this.#h3 = (this.#h3 + d) << 0;
+ this.#h4 = (this.#h4 + e) << 0;
+ this.#h5 = (this.#h5 + f) << 0;
+ this.#h6 = (this.#h6 + g) << 0;
+ this.#h7 = (this.#h7 + h) << 0;
+ }
+
+ /** Return hash in hex string. */
+ hex(): string {
+ this.finalize();
+
+ const h0 = this.#h0;
+ const h1 = this.#h1;
+ const h2 = this.#h2;
+ const h3 = this.#h3;
+ const h4 = this.#h4;
+ const h5 = this.#h5;
+ const h6 = this.#h6;
+ const h7 = this.#h7;
+
+ let hex =
+ HEX_CHARS[(h0 >> 28) & 0x0f] +
+ HEX_CHARS[(h0 >> 24) & 0x0f] +
+ HEX_CHARS[(h0 >> 20) & 0x0f] +
+ HEX_CHARS[(h0 >> 16) & 0x0f] +
+ HEX_CHARS[(h0 >> 12) & 0x0f] +
+ HEX_CHARS[(h0 >> 8) & 0x0f] +
+ HEX_CHARS[(h0 >> 4) & 0x0f] +
+ HEX_CHARS[h0 & 0x0f] +
+ HEX_CHARS[(h1 >> 28) & 0x0f] +
+ HEX_CHARS[(h1 >> 24) & 0x0f] +
+ HEX_CHARS[(h1 >> 20) & 0x0f] +
+ HEX_CHARS[(h1 >> 16) & 0x0f] +
+ HEX_CHARS[(h1 >> 12) & 0x0f] +
+ HEX_CHARS[(h1 >> 8) & 0x0f] +
+ HEX_CHARS[(h1 >> 4) & 0x0f] +
+ HEX_CHARS[h1 & 0x0f] +
+ HEX_CHARS[(h2 >> 28) & 0x0f] +
+ HEX_CHARS[(h2 >> 24) & 0x0f] +
+ HEX_CHARS[(h2 >> 20) & 0x0f] +
+ HEX_CHARS[(h2 >> 16) & 0x0f] +
+ HEX_CHARS[(h2 >> 12) & 0x0f] +
+ HEX_CHARS[(h2 >> 8) & 0x0f] +
+ HEX_CHARS[(h2 >> 4) & 0x0f] +
+ HEX_CHARS[h2 & 0x0f] +
+ HEX_CHARS[(h3 >> 28) & 0x0f] +
+ HEX_CHARS[(h3 >> 24) & 0x0f] +
+ HEX_CHARS[(h3 >> 20) & 0x0f] +
+ HEX_CHARS[(h3 >> 16) & 0x0f] +
+ HEX_CHARS[(h3 >> 12) & 0x0f] +
+ HEX_CHARS[(h3 >> 8) & 0x0f] +
+ HEX_CHARS[(h3 >> 4) & 0x0f] +
+ HEX_CHARS[h3 & 0x0f] +
+ HEX_CHARS[(h4 >> 28) & 0x0f] +
+ HEX_CHARS[(h4 >> 24) & 0x0f] +
+ HEX_CHARS[(h4 >> 20) & 0x0f] +
+ HEX_CHARS[(h4 >> 16) & 0x0f] +
+ HEX_CHARS[(h4 >> 12) & 0x0f] +
+ HEX_CHARS[(h4 >> 8) & 0x0f] +
+ HEX_CHARS[(h4 >> 4) & 0x0f] +
+ HEX_CHARS[h4 & 0x0f] +
+ HEX_CHARS[(h5 >> 28) & 0x0f] +
+ HEX_CHARS[(h5 >> 24) & 0x0f] +
+ HEX_CHARS[(h5 >> 20) & 0x0f] +
+ HEX_CHARS[(h5 >> 16) & 0x0f] +
+ HEX_CHARS[(h5 >> 12) & 0x0f] +
+ HEX_CHARS[(h5 >> 8) & 0x0f] +
+ HEX_CHARS[(h5 >> 4) & 0x0f] +
+ HEX_CHARS[h5 & 0x0f] +
+ HEX_CHARS[(h6 >> 28) & 0x0f] +
+ HEX_CHARS[(h6 >> 24) & 0x0f] +
+ HEX_CHARS[(h6 >> 20) & 0x0f] +
+ HEX_CHARS[(h6 >> 16) & 0x0f] +
+ HEX_CHARS[(h6 >> 12) & 0x0f] +
+ HEX_CHARS[(h6 >> 8) & 0x0f] +
+ HEX_CHARS[(h6 >> 4) & 0x0f] +
+ HEX_CHARS[h6 & 0x0f];
+ if (!this.#is224) {
+ hex +=
+ HEX_CHARS[(h7 >> 28) & 0x0f] +
+ HEX_CHARS[(h7 >> 24) & 0x0f] +
+ HEX_CHARS[(h7 >> 20) & 0x0f] +
+ HEX_CHARS[(h7 >> 16) & 0x0f] +
+ HEX_CHARS[(h7 >> 12) & 0x0f] +
+ HEX_CHARS[(h7 >> 8) & 0x0f] +
+ HEX_CHARS[(h7 >> 4) & 0x0f] +
+ HEX_CHARS[h7 & 0x0f];
+ }
+ return hex;
+ }
+
+ /** Return hash in hex string. */
+ toString(): string {
+ return this.hex();
+ }
+
+ /** Return hash in integer array. */
+ digest(): number[] {
+ this.finalize();
+
+ const h0 = this.#h0;
+ const h1 = this.#h1;
+ const h2 = this.#h2;
+ const h3 = this.#h3;
+ const h4 = this.#h4;
+ const h5 = this.#h5;
+ const h6 = this.#h6;
+ const h7 = this.#h7;
+
+ const arr = [
+ (h0 >> 24) & 0xff,
+ (h0 >> 16) & 0xff,
+ (h0 >> 8) & 0xff,
+ h0 & 0xff,
+ (h1 >> 24) & 0xff,
+ (h1 >> 16) & 0xff,
+ (h1 >> 8) & 0xff,
+ h1 & 0xff,
+ (h2 >> 24) & 0xff,
+ (h2 >> 16) & 0xff,
+ (h2 >> 8) & 0xff,
+ h2 & 0xff,
+ (h3 >> 24) & 0xff,
+ (h3 >> 16) & 0xff,
+ (h3 >> 8) & 0xff,
+ h3 & 0xff,
+ (h4 >> 24) & 0xff,
+ (h4 >> 16) & 0xff,
+ (h4 >> 8) & 0xff,
+ h4 & 0xff,
+ (h5 >> 24) & 0xff,
+ (h5 >> 16) & 0xff,
+ (h5 >> 8) & 0xff,
+ h5 & 0xff,
+ (h6 >> 24) & 0xff,
+ (h6 >> 16) & 0xff,
+ (h6 >> 8) & 0xff,
+ h6 & 0xff,
+ ];
+ if (!this.#is224) {
+ arr.push(
+ (h7 >> 24) & 0xff,
+ (h7 >> 16) & 0xff,
+ (h7 >> 8) & 0xff,
+ h7 & 0xff
+ );
+ }
+ return arr;
+ }
+
+ /** Return hash in integer array. */
+ array(): number[] {
+ return this.digest();
+ }
+
+ /** Return hash in ArrayBuffer. */
+ arrayBuffer(): ArrayBuffer {
+ this.finalize();
+
+ const buffer = new ArrayBuffer(this.#is224 ? 28 : 32);
+ const dataView = new DataView(buffer);
+ dataView.setUint32(0, this.#h0);
+ dataView.setUint32(4, this.#h1);
+ dataView.setUint32(8, this.#h2);
+ dataView.setUint32(12, this.#h3);
+ dataView.setUint32(16, this.#h4);
+ dataView.setUint32(20, this.#h5);
+ dataView.setUint32(24, this.#h6);
+ if (!this.#is224) {
+ dataView.setUint32(28, this.#h7);
+ }
+ return buffer;
+ }
+}
+
+export class HmacSha256 extends Sha256 {
+ #inner: boolean;
+ #is224: boolean;
+ #oKeyPad: number[];
+ #sharedMemory: boolean;
+
+ constructor(secretKey: Message, is224 = false, sharedMemory = false) {
+ super(is224, sharedMemory);
+
+ let key: number[] | Uint8Array | undefined;
+ if (typeof secretKey === "string") {
+ const bytes: number[] = [];
+ const length = secretKey.length;
+ let index = 0;
+ for (let i = 0; i < length; ++i) {
+ let code = secretKey.charCodeAt(i);
+ if (code < 0x80) {
+ bytes[index++] = code;
+ } else if (code < 0x800) {
+ bytes[index++] = 0xc0 | (code >> 6);
+ bytes[index++] = 0x80 | (code & 0x3f);
+ } else if (code < 0xd800 || code >= 0xe000) {
+ bytes[index++] = 0xe0 | (code >> 12);
+ bytes[index++] = 0x80 | ((code >> 6) & 0x3f);
+ bytes[index++] = 0x80 | (code & 0x3f);
+ } else {
+ code =
+ 0x10000 +
+ (((code & 0x3ff) << 10) | (secretKey.charCodeAt(++i) & 0x3ff));
+ bytes[index++] = 0xf0 | (code >> 18);
+ bytes[index++] = 0x80 | ((code >> 12) & 0x3f);
+ bytes[index++] = 0x80 | ((code >> 6) & 0x3f);
+ bytes[index++] = 0x80 | (code & 0x3f);
+ }
+ }
+ key = bytes;
+ } else {
+ if (typeof secretKey === "object") {
+ if (secretKey === null) {
+ throw new Error(ERROR);
+ } else if (secretKey instanceof ArrayBuffer) {
+ key = new Uint8Array(secretKey);
+ } else if (!Array.isArray(secretKey)) {
+ if (!ArrayBuffer.isView(secretKey)) {
+ throw new Error(ERROR);
+ }
+ }
+ } else {
+ throw new Error(ERROR);
+ }
+ }
+ if (key === undefined) {
+ key = secretKey as number[] | Uint8Array;
+ }
+
+ if (key.length > 64) {
+ key = new Sha256(is224, true).update(key).array();
+ }
+
+ const oKeyPad: number[] = [];
+ const iKeyPad: number[] = [];
+ for (let i = 0; i < 64; ++i) {
+ const b = key[i] || 0;
+ oKeyPad[i] = 0x5c ^ b;
+ iKeyPad[i] = 0x36 ^ b;
+ }
+
+ this.update(iKeyPad);
+ this.#oKeyPad = oKeyPad;
+ this.#inner = true;
+ this.#is224 = is224;
+ this.#sharedMemory = sharedMemory;
+ }
+
+ protected finalize(): void {
+ super.finalize();
+ if (this.#inner) {
+ this.#inner = false;
+ const innerHash = this.array();
+ super.init(this.#is224, this.#sharedMemory);
+ this.update(this.#oKeyPad);
+ this.update(innerHash);
+ super.finalize();
+ }
+ }
+}
generated by cgit v1.2.3 (git 2.25.1) at 2025-06-28 04:31:03 +0000