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authorGravatar Piotr Russ <mail@pruss.it> 2020-11-16 00:10:28 +0100
committerGravatar Piotr Russ <mail@pruss.it> 2020-11-16 00:10:28 +0100
commite06ec920f7a5d784e674c4c4b4e6d1da3dc7391d (patch)
tree55713f725f77b44ebfec86e4eec3ce33e71458ca /node_modules/browserify-sign/browser/index.js
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api, login, auth
Diffstat (limited to 'node_modules/browserify-sign/browser/index.js')
-rw-r--r--node_modules/browserify-sign/browser/index.js92
1 files changed, 92 insertions, 0 deletions
diff --git a/node_modules/browserify-sign/browser/index.js b/node_modules/browserify-sign/browser/index.js
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+var Buffer = require('safe-buffer').Buffer
+var createHash = require('create-hash')
+var stream = require('readable-stream')
+var inherits = require('inherits')
+var sign = require('./sign')
+var verify = require('./verify')
+
+var algorithms = require('./algorithms.json')
+Object.keys(algorithms).forEach(function (key) {
+ algorithms[key].id = Buffer.from(algorithms[key].id, 'hex')
+ algorithms[key.toLowerCase()] = algorithms[key]
+})
+
+function Sign (algorithm) {
+ stream.Writable.call(this)
+
+ var data = algorithms[algorithm]
+ if (!data) throw new Error('Unknown message digest')
+
+ this._hashType = data.hash
+ this._hash = createHash(data.hash)
+ this._tag = data.id
+ this._signType = data.sign
+}
+inherits(Sign, stream.Writable)
+
+Sign.prototype._write = function _write (data, _, done) {
+ this._hash.update(data)
+ done()
+}
+
+Sign.prototype.update = function update (data, enc) {
+ if (typeof data === 'string') data = Buffer.from(data, enc)
+
+ this._hash.update(data)
+ return this
+}
+
+Sign.prototype.sign = function signMethod (key, enc) {
+ this.end()
+ var hash = this._hash.digest()
+ var sig = sign(hash, key, this._hashType, this._signType, this._tag)
+
+ return enc ? sig.toString(enc) : sig
+}
+
+function Verify (algorithm) {
+ stream.Writable.call(this)
+
+ var data = algorithms[algorithm]
+ if (!data) throw new Error('Unknown message digest')
+
+ this._hash = createHash(data.hash)
+ this._tag = data.id
+ this._signType = data.sign
+}
+inherits(Verify, stream.Writable)
+
+Verify.prototype._write = function _write (data, _, done) {
+ this._hash.update(data)
+ done()
+}
+
+Verify.prototype.update = function update (data, enc) {
+ if (typeof data === 'string') data = Buffer.from(data, enc)
+
+ this._hash.update(data)
+ return this
+}
+
+Verify.prototype.verify = function verifyMethod (key, sig, enc) {
+ if (typeof sig === 'string') sig = Buffer.from(sig, enc)
+
+ this.end()
+ var hash = this._hash.digest()
+ return verify(sig, hash, key, this._signType, this._tag)
+}
+
+function createSign (algorithm) {
+ return new Sign(algorithm)
+}
+
+function createVerify (algorithm) {
+ return new Verify(algorithm)
+}
+
+module.exports = {
+ Sign: createSign,
+ Verify: createVerify,
+ createSign: createSign,
+ createVerify: createVerify
+}