feat: BIP39 generator

Signed-off-by: Corentin Thomasset <corentin.thomasset74@gmail.com>

src/router.js

@@ -38,6 +38,13 @@ const toolsComponents = [
                 component: () => import('./routes/tools/TextCypher'),
                 keywords: ['aes', 'tripledes', 'rabbit', 'rabbitlegacy', 'rc4']
             },
+            {
+                icon: 'fa-file-word',
+                text: 'BIP39 passphrase generator',
+                path: '/bip39-generator',
+                component: () => import('./routes/tools/BIP39Generator'),
+                keywords: []
+            },
         ],
     },
     {

src/routes/tools/BIP39Generator.vue

@@ -0,0 +1,100 @@
+<template>
+    <v-card class="single-card">
+        <v-card-title>BIP39 passphrase generator</v-card-title>
+        <v-card-text>
+            <v-select
+                    outlined
+                    label="Language"
+                    @change="languageChanged"
+                    :items="languageList"
+                    v-model="language"
+            />
+            <v-text-field
+                    outlined
+                    v-model="entropy"
+                    label="Entropy"
+                    append-icon="fa-clipboard"
+                    @click:append="copy(entropy)"
+                    :rules="rules.entropy"
+                    ref="entropy"
+            />
+            <v-text-field
+                    outlined
+                    v-model="passphrase"
+                    label="Passphrase"
+                    append-icon="fa-clipboard"
+                    @click:append="copy(passphrase)"
+                    :rules="rules.passphrase"
+                    ref="passphrase"
+            />
+            <div class="text-center">
+                <v-btn @click="refresh">refresh</v-btn>
+            </div>
+        </v-card-text>
+    </v-card>
+</template>
+
+<script>
+    import * as bip39 from "bip39";
+    import {copyable} from "../../mixins/copyable.mixin";
+
+    const shuffle = (str) => str.split('').sort(() => 0.5 - Math.random()).join('');
+
+    const getRandomBuffer = () => {
+        return Buffer.from(shuffle('0123456789abcdef'.repeat(16)).substring(0, 32), 'hex');
+    }
+
+    export default {
+        name: 'BIP39Generator',
+        mixins: [copyable],
+        data: () => ({
+            buffer: getRandomBuffer(),
+            languageList: Object.keys(bip39.wordlists).filter(k => !k.match(/[A-Z]{2}/)).map(k => ({text: k.split('_').map(k => k.charAt(0).toUpperCase() + k.slice(1)).join(' '), value:k})),
+            language: 'english',
+            rules: {
+                passphrase: [
+                    v => (!!v && bip39.validateMnemonic(v)) || 'Invalid mnemonic.'
+                ],
+                entropy: [
+                    v => (!!v && v.match(/[0-9a-fA-F]{32}/)) || 'Invalid entropy.'
+
+                ]
+            }
+        }),
+        methods:{
+            refresh(){
+                this.buffer = getRandomBuffer();
+            },
+            languageChanged(){
+                bip39.setDefaultWordlist(this.language);
+                this.passphrase = bip39.entropyToMnemonic(this.buffer)
+            }
+        },
+        computed: {
+            entropy: {
+                get() {
+                    return this.buffer.toString('hex')
+                },
+                set(value) {
+                    if(this.$refs.entropy.validate()) {
+                        this.buffer = Buffer.from(value, 'hex')
+                    }
+                }
+            },
+            passphrase: {
+                get() {
+                    return bip39.entropyToMnemonic(this.buffer)
+                },
+                set(value) {
+                    if(this.$refs.passphrase.validate()){
+                        this.buffer = Buffer.from(bip39.mnemonicToEntropy(value), 'hex')
+                    }
+                }
+            }
+        }
+    }
+</script>
+
+<style scoped>
+
+</style>