diff options
| -rw-r--r-- | std/util/sha1.ts | 141 |
1 files changed, 70 insertions, 71 deletions
diff --git a/std/util/sha1.ts b/std/util/sha1.ts index bb9103d27..f47192554 100644 --- a/std/util/sha1.ts +++ b/std/util/sha1.ts @@ -6,7 +6,6 @@ * @copyright Chen, Yi-Cyuan 2014-2017 * @license MIT */ -/*jslint bitwise: true */ const HEX_CHARS = "0123456789abcdef".split(""); const EXTRA = Uint32Array.of(-2147483648, 8388608, 32768, 128); @@ -15,40 +14,40 @@ const SHIFT = Uint32Array.of(24, 16, 8, 0); const blocks = new Uint32Array(80); export class Sha1 { - private _blocks: Uint32Array; - private _block: number; - private _start: number; - private _bytes: number; - private _hBytes: number; - private _finalized: boolean; - private _hashed: boolean; - - private _h0 = 0x67452301; - private _h1 = 0xefcdab89; - private _h2 = 0x98badcfe; - private _h3 = 0x10325476; - private _h4 = 0xc3d2e1f0; - private _lastByteIndex = 0; + #blocks: Uint32Array; + #block: number; + #start: number; + #bytes: number; + #hBytes: number; + #finalized: boolean; + #hashed: boolean; + + #h0 = 0x67452301; + #h1 = 0xefcdab89; + #h2 = 0x98badcfe; + #h3 = 0x10325476; + #h4 = 0xc3d2e1f0; + #lastByteIndex = 0; constructor(sharedMemory = false) { if (sharedMemory) { - this._blocks = blocks.fill(0, 0, 17); + this.#blocks = blocks.fill(0, 0, 17); } else { - this._blocks = new Uint32Array(80); + this.#blocks = new Uint32Array(80); } - this._h0 = 0x67452301; - this._h1 = 0xefcdab89; - this._h2 = 0x98badcfe; - this._h3 = 0x10325476; - this._h4 = 0xc3d2e1f0; + this.#h0 = 0x67452301; + this.#h1 = 0xefcdab89; + this.#h2 = 0x98badcfe; + this.#h3 = 0x10325476; + this.#h4 = 0xc3d2e1f0; - this._block = this._start = this._bytes = this._hBytes = 0; - this._finalized = this._hashed = false; + this.#block = this.#start = this.#bytes = this.#hBytes = 0; + this.#finalized = this.#hashed = false; } update(data: string | ArrayBuffer | ArrayBufferView): Sha1 { - if (this._finalized) { + if (this.#finalized) { return this; } let notString = true; @@ -64,14 +63,14 @@ export class Sha1 { let code; let index = 0; let i; - const start = this._start; + const start = this.#start; const length = message.length || 0; - const blocks = this._blocks; + const blocks = this.#blocks; while (index < length) { - if (this._hashed) { - this._hashed = false; - blocks[0] = this._block; + if (this.#hashed) { + this.#hashed = false; + blocks[0] = this.#block; blocks.fill(0, 1, 17); } @@ -104,54 +103,54 @@ export class Sha1 { } } - this._lastByteIndex = i; - this._bytes += i - start; + this.#lastByteIndex = i; + this.#bytes += i - start; if (i >= 64) { - this._block = blocks[16]; - this._start = i - 64; + this.#block = blocks[16]; + this.#start = i - 64; this.hash(); - this._hashed = true; + this.#hashed = true; } else { - this._start = i; + this.#start = i; } } - if (this._bytes > 4294967295) { - this._hBytes += (this._bytes / 4294967296) >>> 0; - this._bytes = this._bytes >>> 0; + if (this.#bytes > 4294967295) { + this.#hBytes += (this.#bytes / 4294967296) >>> 0; + this.#bytes = this.#bytes >>> 0; } return this; } finalize(): void { - if (this._finalized) { + if (this.#finalized) { return; } - this._finalized = true; - const blocks = this._blocks; - const i = this._lastByteIndex; - blocks[16] = this._block; + 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]; + this.#block = blocks[16]; if (i >= 56) { - if (!this._hashed) { + if (!this.#hashed) { this.hash(); } - blocks[0] = this._block; + blocks[0] = this.#block; blocks.fill(0, 1, 17); } - blocks[14] = (this._hBytes << 3) | (this._bytes >>> 29); - blocks[15] = this._bytes << 3; + blocks[14] = (this.#hBytes << 3) | (this.#bytes >>> 29); + blocks[15] = this.#bytes << 3; this.hash(); } hash(): void { - let a = this._h0; - let b = this._h1; - let c = this._h2; - let d = this._h3; - let e = this._h4; + let a = this.#h0; + let b = this.#h1; + let c = this.#h2; + let d = this.#h3; + let e = this.#h4; let f, j, t; - const blocks = this._blocks; + const blocks = this.#blocks; for (j = 16; j < 80; ++j) { t = blocks[j - 3] ^ blocks[j - 8] ^ blocks[j - 14] ^ blocks[j - 16]; @@ -266,21 +265,21 @@ export class Sha1 { c = (c << 30) | (c >>> 2); } - 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.#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; } 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 h0 = this.#h0; + const h1 = this.#h1; + const h2 = this.#h2; + const h3 = this.#h3; + const h4 = this.#h4; return ( HEX_CHARS[(h0 >> 28) & 0x0f] + @@ -333,11 +332,11 @@ export class Sha1 { 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 h0 = this.#h0; + const h1 = this.#h1; + const h2 = this.#h2; + const h3 = this.#h3; + const h4 = this.#h4; return [ (h0 >> 24) & 0xff, @@ -369,7 +368,7 @@ export class Sha1 { arrayBuffer(): ArrayBuffer { this.finalize(); - return Uint32Array.of(this._h0, this._h1, this._h2, this._h3, this._h4) + return Uint32Array.of(this.#h0, this.#h1, this.#h2, this.#h3, this.#h4) .buffer; } } |