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authorGravatar Piotr Russ <mail@pruss.it> 2020-11-18 23:26:45 +0100
committerGravatar Piotr Russ <mail@pruss.it> 2020-11-18 23:26:45 +0100
commit81ddf9b700bc48a1f8e472209f080f9c1d9a9b09 (patch)
tree8b959d50c5a614cbf9fcb346ed556140374d4b6d /node_modules/create-ecdh/browser.js
parent1870f3fdf43707a15fda0f609a021f516f45eb63 (diff)
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rm node_modules
Diffstat (limited to 'node_modules/create-ecdh/browser.js')
-rw-r--r--node_modules/create-ecdh/browser.js124
1 files changed, 0 insertions, 124 deletions
diff --git a/node_modules/create-ecdh/browser.js b/node_modules/create-ecdh/browser.js
deleted file mode 100644
index 3613b45..0000000
--- a/node_modules/create-ecdh/browser.js
+++ /dev/null
@@ -1,124 +0,0 @@
-var elliptic = require('elliptic')
-var BN = require('bn.js')
-
-module.exports = function createECDH (curve) {
- return new ECDH(curve)
-}
-
-var aliases = {
- secp256k1: {
- name: 'secp256k1',
- byteLength: 32
- },
- secp224r1: {
- name: 'p224',
- byteLength: 28
- },
- prime256v1: {
- name: 'p256',
- byteLength: 32
- },
- prime192v1: {
- name: 'p192',
- byteLength: 24
- },
- ed25519: {
- name: 'ed25519',
- byteLength: 32
- },
- secp384r1: {
- name: 'p384',
- byteLength: 48
- },
- secp521r1: {
- name: 'p521',
- byteLength: 66
- }
-}
-
-aliases.p224 = aliases.secp224r1
-aliases.p256 = aliases.secp256r1 = aliases.prime256v1
-aliases.p192 = aliases.secp192r1 = aliases.prime192v1
-aliases.p384 = aliases.secp384r1
-aliases.p521 = aliases.secp521r1
-
-function ECDH (curve) {
- this.curveType = aliases[curve]
- if (!this.curveType) {
- this.curveType = {
- name: curve
- }
- }
- this.curve = new elliptic.ec(this.curveType.name) // eslint-disable-line new-cap
- this.keys = void 0
-}
-
-ECDH.prototype.generateKeys = function (enc, format) {
- this.keys = this.curve.genKeyPair()
- return this.getPublicKey(enc, format)
-}
-
-ECDH.prototype.computeSecret = function (other, inenc, enc) {
- inenc = inenc || 'utf8'
- if (!Buffer.isBuffer(other)) {
- other = new Buffer(other, inenc)
- }
- var otherPub = this.curve.keyFromPublic(other).getPublic()
- var out = otherPub.mul(this.keys.getPrivate()).getX()
- return formatReturnValue(out, enc, this.curveType.byteLength)
-}
-
-ECDH.prototype.getPublicKey = function (enc, format) {
- var key = this.keys.getPublic(format === 'compressed', true)
- if (format === 'hybrid') {
- if (key[key.length - 1] % 2) {
- key[0] = 7
- } else {
- key[0] = 6
- }
- }
- return formatReturnValue(key, enc)
-}
-
-ECDH.prototype.getPrivateKey = function (enc) {
- return formatReturnValue(this.keys.getPrivate(), enc)
-}
-
-ECDH.prototype.setPublicKey = function (pub, enc) {
- enc = enc || 'utf8'
- if (!Buffer.isBuffer(pub)) {
- pub = new Buffer(pub, enc)
- }
- this.keys._importPublic(pub)
- return this
-}
-
-ECDH.prototype.setPrivateKey = function (priv, enc) {
- enc = enc || 'utf8'
- if (!Buffer.isBuffer(priv)) {
- priv = new Buffer(priv, enc)
- }
-
- var _priv = new BN(priv)
- _priv = _priv.toString(16)
- this.keys = this.curve.genKeyPair()
- this.keys._importPrivate(_priv)
- return this
-}
-
-function formatReturnValue (bn, enc, len) {
- if (!Array.isArray(bn)) {
- bn = bn.toArray()
- }
- var buf = new Buffer(bn)
- if (len && buf.length < len) {
- var zeros = new Buffer(len - buf.length)
- zeros.fill(0)
- buf = Buffer.concat([zeros, buf])
- }
- if (!enc) {
- return buf
- } else {
- return buf.toString(enc)
- }
-}