1 line
8.6 KiB
JSON
1 line
8.6 KiB
JSON
{"ast":null,"code":"'use strict';\n\nvar utils = require('../utils');\n\nvar assert = utils.assert;\nvar parseBytes = utils.parseBytes;\nvar cachedProperty = utils.cachedProperty;\n/**\n* @param {EDDSA} eddsa - instance\n* @param {Object} params - public/private key parameters\n*\n* @param {Array<Byte>} [params.secret] - secret seed bytes\n* @param {Point} [params.pub] - public key point (aka `A` in eddsa terms)\n* @param {Array<Byte>} [params.pub] - public key point encoded as bytes\n*\n*/\n\nfunction KeyPair(eddsa, params) {\n this.eddsa = eddsa;\n this._secret = parseBytes(params.secret);\n if (eddsa.isPoint(params.pub)) this._pub = params.pub;else this._pubBytes = parseBytes(params.pub);\n}\n\nKeyPair.fromPublic = function fromPublic(eddsa, pub) {\n if (pub instanceof KeyPair) return pub;\n return new KeyPair(eddsa, {\n pub: pub\n });\n};\n\nKeyPair.fromSecret = function fromSecret(eddsa, secret) {\n if (secret instanceof KeyPair) return secret;\n return new KeyPair(eddsa, {\n secret: secret\n });\n};\n\nKeyPair.prototype.secret = function secret() {\n return this._secret;\n};\n\ncachedProperty(KeyPair, 'pubBytes', function pubBytes() {\n return this.eddsa.encodePoint(this.pub());\n});\ncachedProperty(KeyPair, 'pub', function pub() {\n if (this._pubBytes) return this.eddsa.decodePoint(this._pubBytes);\n return this.eddsa.g.mul(this.priv());\n});\ncachedProperty(KeyPair, 'privBytes', function privBytes() {\n var eddsa = this.eddsa;\n var hash = this.hash();\n var lastIx = eddsa.encodingLength - 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instance\n* @param {Object} params - public/private key parameters\n*\n* @param {Array<Byte>} [params.secret] - secret seed bytes\n* @param {Point} [params.pub] - public key point (aka `A` in eddsa terms)\n* @param {Array<Byte>} [params.pub] - public key point encoded as bytes\n*\n*/\nfunction KeyPair(eddsa, params) {\n this.eddsa = eddsa;\n this._secret = parseBytes(params.secret);\n if (eddsa.isPoint(params.pub))\n this._pub = params.pub;\n else\n this._pubBytes = parseBytes(params.pub);\n}\n\nKeyPair.fromPublic = function fromPublic(eddsa, pub) {\n if (pub instanceof KeyPair)\n return pub;\n return new KeyPair(eddsa, { pub: pub });\n};\n\nKeyPair.fromSecret = function fromSecret(eddsa, secret) {\n if (secret instanceof KeyPair)\n return secret;\n return new KeyPair(eddsa, { secret: secret });\n};\n\nKeyPair.prototype.secret = function secret() {\n return this._secret;\n};\n\ncachedProperty(KeyPair, 'pubBytes', function pubBytes() {\n return this.eddsa.encodePoint(this.pub());\n});\n\ncachedProperty(KeyPair, 'pub', function pub() {\n if (this._pubBytes)\n return this.eddsa.decodePoint(this._pubBytes);\n return this.eddsa.g.mul(this.priv());\n});\n\ncachedProperty(KeyPair, 'privBytes', function privBytes() {\n var eddsa = this.eddsa;\n var hash = this.hash();\n var lastIx = eddsa.encodingLength - 1;\n\n var a = hash.slice(0, eddsa.encodingLength);\n a[0] &= 248;\n a[lastIx] &= 127;\n a[lastIx] |= 64;\n\n return a;\n});\n\ncachedProperty(KeyPair, 'priv', function priv() {\n return this.eddsa.decodeInt(this.privBytes());\n});\n\ncachedProperty(KeyPair, 'hash', function hash() {\n return this.eddsa.hash().update(this.secret()).digest();\n});\n\ncachedProperty(KeyPair, 'messagePrefix', function messagePrefix() {\n return this.hash().slice(this.eddsa.encodingLength);\n});\n\nKeyPair.prototype.sign = function sign(message) {\n assert(this._secret, 'KeyPair can only verify');\n return this.eddsa.sign(message, this);\n};\n\nKeyPair.prototype.verify = function verify(message, sig) {\n return this.eddsa.verify(message, sig, this);\n};\n\nKeyPair.prototype.getSecret = function getSecret(enc) {\n assert(this._secret, 'KeyPair is public only');\n return utils.encode(this.secret(), enc);\n};\n\nKeyPair.prototype.getPublic = function getPublic(enc) {\n return utils.encode(this.pubBytes(), enc);\n};\n\nmodule.exports = KeyPair;\n"]},"metadata":{},"sourceType":"script"} |