"use strict"; Object.defineProperty(exports, "__esModule", { value: true }); exports.RawSha256 = void 0; var constants_1 = require("./constants"); /** * @internal */ var RawSha256 = /** @class */ (function () { function RawSha256() { this.state = Int32Array.from(constants_1.INIT); this.temp = new Int32Array(64); this.buffer = new Uint8Array(64); this.bufferLength = 0; this.bytesHashed = 0; /** * @internal */ this.finished = false; } RawSha256.prototype.update = function (data) { if (this.finished) { throw new Error("Attempted to update an already finished hash."); } var position = 0; var byteLength = data.byteLength; this.bytesHashed += byteLength; if (this.bytesHashed * 8 > constants_1.MAX_HASHABLE_LENGTH) { throw new Error("Cannot hash more than 2^53 - 1 bits"); } while (byteLength > 0) { this.buffer[this.bufferLength++] = data[position++]; byteLength--; if (this.bufferLength === constants_1.BLOCK_SIZE) { this.hashBuffer(); this.bufferLength = 0; } } }; RawSha256.prototype.digest = function () { if (!this.finished) { var bitsHashed = this.bytesHashed * 8; var bufferView = new DataView(this.buffer.buffer, this.buffer.byteOffset, this.buffer.byteLength); var undecoratedLength = this.bufferLength; bufferView.setUint8(this.bufferLength++, 0x80); // Ensure the final block has enough room for the hashed length if (undecoratedLength % constants_1.BLOCK_SIZE >= constants_1.BLOCK_SIZE - 8) { for (var i = this.bufferLength; i < constants_1.BLOCK_SIZE; i++) { bufferView.setUint8(i, 0); } this.hashBuffer(); this.bufferLength = 0; } for (var i = this.bufferLength; i < constants_1.BLOCK_SIZE - 8; i++) { bufferView.setUint8(i, 0); } bufferView.setUint32(constants_1.BLOCK_SIZE - 8, Math.floor(bitsHashed / 0x100000000), true); bufferView.setUint32(constants_1.BLOCK_SIZE - 4, bitsHashed); this.hashBuffer(); this.finished = true; } // The value in state is little-endian rather than big-endian, so flip // each word into a new Uint8Array var out = new Uint8Array(constants_1.DIGEST_LENGTH); for (var i = 0; i < 8; i++) { out[i * 4] = (this.state[i] >>> 24) & 0xff; out[i * 4 + 1] = (this.state[i] >>> 16) & 0xff; out[i * 4 + 2] = (this.state[i] >>> 8) & 0xff; out[i * 4 + 3] = (this.state[i] >>> 0) & 0xff; } return out; }; RawSha256.prototype.hashBuffer = function () { var _a = this, buffer = _a.buffer, state = _a.state; var state0 = state[0], state1 = state[1], state2 = state[2], state3 = state[3], state4 = state[4], state5 = state[5], state6 = state[6], state7 = state[7]; for (var i = 0; i < constants_1.BLOCK_SIZE; i++) { if (i < 16) { this.temp[i] = ((buffer[i * 4] & 0xff) << 24) | ((buffer[i * 4 + 1] & 0xff) << 16) | ((buffer[i * 4 + 2] & 0xff) << 8) | (buffer[i * 4 + 3] & 0xff); } else { var u = this.temp[i - 2]; var t1_1 = ((u >>> 17) | (u << 15)) ^ ((u >>> 19) | (u << 13)) ^ (u >>> 10); u = this.temp[i - 15]; var t2_1 = ((u >>> 7) | (u << 25)) ^ ((u >>> 18) | (u << 14)) ^ (u >>> 3); this.temp[i] = ((t1_1 + this.temp[i - 7]) | 0) + ((t2_1 + this.temp[i - 16]) | 0); } var t1 = ((((((state4 >>> 6) | (state4 << 26)) ^ ((state4 >>> 11) | (state4 << 21)) ^ ((state4 >>> 25) | (state4 << 7))) + ((state4 & state5) ^ (~state4 & state6))) | 0) + ((state7 + ((constants_1.KEY[i] + this.temp[i]) | 0)) | 0)) | 0; var t2 = ((((state0 >>> 2) | (state0 << 30)) ^ ((state0 >>> 13) | (state0 << 19)) ^ ((state0 >>> 22) | (state0 << 10))) + ((state0 & state1) ^ (state0 & state2) ^ (state1 & state2))) | 0; state7 = state6; state6 = state5; state5 = state4; state4 = (state3 + t1) | 0; state3 = state2; state2 = state1; state1 = state0; state0 = (t1 + t2) | 0; } state[0] += state0; state[1] += state1; state[2] += state2; state[3] += state3; state[4] += state4; state[5] += state5; state[6] += state6; state[7] += state7; }; return RawSha256; }()); exports.RawSha256 = RawSha256; //# 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{\n  BLOCK_SIZE,\n  DIGEST_LENGTH,\n  INIT,\n  KEY,\n  MAX_HASHABLE_LENGTH\n} from \"./constants\";\n\n/**\n * @internal\n */\nexport class RawSha256 {\n  private state: Int32Array = Int32Array.from(INIT);\n  private temp: Int32Array = new Int32Array(64);\n  private buffer: Uint8Array = new Uint8Array(64);\n  private bufferLength: number = 0;\n  private bytesHashed: number = 0;\n\n  /**\n   * @internal\n   */\n  finished: boolean = false;\n\n  update(data: Uint8Array): void {\n    if (this.finished) {\n      throw new Error(\"Attempted to update an already finished hash.\");\n    }\n\n    let position = 0;\n    let { byteLength } = data;\n    this.bytesHashed += byteLength;\n\n    if (this.bytesHashed * 8 > MAX_HASHABLE_LENGTH) {\n      throw new Error(\"Cannot hash more than 2^53 - 1 bits\");\n    }\n\n    while (byteLength > 0) {\n      this.buffer[this.bufferLength++] = data[position++];\n      byteLength--;\n\n      if (this.bufferLength === BLOCK_SIZE) {\n        this.hashBuffer();\n        this.bufferLength = 0;\n      }\n    }\n  }\n\n  digest(): Uint8Array {\n    if (!this.finished) {\n      const bitsHashed = this.bytesHashed * 8;\n      const bufferView = new DataView(\n        this.buffer.buffer,\n        this.buffer.byteOffset,\n        this.buffer.byteLength\n      );\n\n      const undecoratedLength = this.bufferLength;\n      bufferView.setUint8(this.bufferLength++, 0x80);\n\n      // Ensure the final block has enough room for the hashed length\n      if (undecoratedLength % BLOCK_SIZE >= BLOCK_SIZE - 8) {\n        for (let i = this.bufferLength; i < BLOCK_SIZE; i++) {\n          bufferView.setUint8(i, 0);\n        }\n        this.hashBuffer();\n        this.bufferLength = 0;\n      }\n\n      for (let i = this.bufferLength; i < BLOCK_SIZE - 8; i++) {\n        bufferView.setUint8(i, 0);\n      }\n      bufferView.setUint32(\n        BLOCK_SIZE - 8,\n        Math.floor(bitsHashed / 0x100000000),\n        true\n      );\n      bufferView.setUint32(BLOCK_SIZE - 4, bitsHashed);\n\n      this.hashBuffer();\n\n      this.finished = true;\n    }\n\n    // The value in state is little-endian rather than big-endian, so flip\n    // each word into a new Uint8Array\n    const out = new Uint8Array(DIGEST_LENGTH);\n    for (let i = 0; i < 8; i++) {\n      out[i * 4] = (this.state[i] >>> 24) & 0xff;\n      out[i * 4 + 1] = (this.state[i] >>> 16) & 0xff;\n      out[i * 4 + 2] = (this.state[i] >>> 8) & 0xff;\n      out[i * 4 + 3] = (this.state[i] >>> 0) & 0xff;\n    }\n\n    return out;\n  }\n\n  private hashBuffer(): void {\n    const { buffer, state } = this;\n\n    let state0 = state[0],\n      state1 = state[1],\n      state2 = state[2],\n      state3 = state[3],\n      state4 = state[4],\n      state5 = state[5],\n      state6 = state[6],\n      state7 = state[7];\n\n    for (let i = 0; i < BLOCK_SIZE; i++) {\n      if (i < 16) {\n        this.temp[i] =\n          ((buffer[i * 4] & 0xff) << 24) |\n          ((buffer[i * 4 + 1] & 0xff) << 16) |\n          ((buffer[i * 4 + 2] & 0xff) << 8) |\n          (buffer[i * 4 + 3] & 0xff);\n      } else {\n        let u = this.temp[i - 2];\n        const t1 =\n          ((u >>> 17) | (u << 15)) ^ ((u >>> 19) | (u << 13)) ^ (u >>> 10);\n\n        u = this.temp[i - 15];\n        const t2 =\n          ((u >>> 7) | (u << 25)) ^ ((u >>> 18) | (u << 14)) ^ (u >>> 3);\n\n        this.temp[i] =\n          ((t1 + this.temp[i - 7]) | 0) + ((t2 + this.temp[i - 16]) | 0);\n      }\n\n      const t1 =\n        ((((((state4 >>> 6) | (state4 << 26)) ^\n          ((state4 >>> 11) | (state4 << 21)) ^\n          ((state4 >>> 25) | (state4 << 7))) +\n          ((state4 & state5) ^ (~state4 & state6))) |\n          0) +\n          ((state7 + ((KEY[i] + this.temp[i]) | 0)) | 0)) |\n        0;\n\n      const t2 =\n        ((((state0 >>> 2) | (state0 << 30)) ^\n          ((state0 >>> 13) | (state0 << 19)) ^\n          ((state0 >>> 22) | (state0 << 10))) +\n          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