From e5d88714313676b0a634b55d33deb8c0d7e5c86d Mon Sep 17 00:00:00 2001
From: sharevb <sharevb@gmail.com>
Date: Sat, 18 May 2024 15:05:02 +0200
Subject: [PATCH] feat(new tool): rsa/ecdsa signing and verify

Fix #1084
---
 src/tools/index.ts                            |  17 ++-
 src/tools/rsa-ecdsa-signing/index.ts          |  12 ++
 .../rsa-ecdsa-signing/rsa-ecdsa-signing.vue   | 139 ++++++++++++++++++
 3 files changed, 167 insertions(+), 1 deletion(-)
 create mode 100644 src/tools/rsa-ecdsa-signing/index.ts
 create mode 100644 src/tools/rsa-ecdsa-signing/rsa-ecdsa-signing.vue

diff --git a/src/tools/index.ts b/src/tools/index.ts
index aa861c935..7b371472b 100644
--- a/src/tools/index.ts
+++ b/src/tools/index.ts
@@ -1,6 +1,7 @@
 import { tool as base64FileConverter } from './base64-file-converter';
 import { tool as base64StringConverter } from './base64-string-converter';
 import { tool as basicAuthGenerator } from './basic-auth-generator';
+import { tool as rsaEcdsaSigning } from './rsa-ecdsa-signing';
 
 import { tool as asciiTextDrawer } from './ascii-text-drawer';
 
@@ -85,7 +86,21 @@ import { tool as yamlViewer } from './yaml-viewer';
 export const toolsByCategory: ToolCategory[] = [
   {
     name: 'Crypto',
-    components: [tokenGenerator, hashText, bcrypt, uuidGenerator, ulidGenerator, cypher, bip39, hmacGenerator, rsaKeyPairGenerator, passwordStrengthAnalyser, pdfSignatureChecker],
+    components: [
+      tokenGenerator,
+      hashText,
+      bcrypt,
+      uuidGenerator,
+      ulidGenerator,
+      cypher,
+      bip39,
+      hmacGenerator,
+      rsaKeyPairGenerator,
+      passwordStrengthAnalyser,
+      pdfSignatureChecker,
+      // pgpEncryption,
+      rsaEcdsaSigning,
+    ],
   },
   {
     name: 'Converter',
diff --git a/src/tools/rsa-ecdsa-signing/index.ts b/src/tools/rsa-ecdsa-signing/index.ts
new file mode 100644
index 000000000..e31d926b2
--- /dev/null
+++ b/src/tools/rsa-ecdsa-signing/index.ts
@@ -0,0 +1,12 @@
+import { Lock } from '@vicons/tabler';
+import { defineTool } from '../tool';
+
+export const tool = defineTool({
+  name: 'RSA/DSA/ECDSA Signer and Verifier',
+  path: '/rsa-ecdsa-signing',
+  description: 'Sign data and verify signature using RSA/DSA/ECDSA Keys',
+  keywords: ['rsa', 'dsa', 'ecdsa', 'ed25519', 'encryption', 'cypher', 'encipher', 'crypt', 'decrypt'],
+  component: () => import('./rsa-ecdsa-signing.vue'),
+  icon: Lock,
+  createdAt: new Date('2024-05-01'),
+});
diff --git a/src/tools/rsa-ecdsa-signing/rsa-ecdsa-signing.vue b/src/tools/rsa-ecdsa-signing/rsa-ecdsa-signing.vue
new file mode 100644
index 000000000..1f5e6bc05
--- /dev/null
+++ b/src/tools/rsa-ecdsa-signing/rsa-ecdsa-signing.vue
@@ -0,0 +1,139 @@
+<script setup lang="ts">
+import sshpk from 'sshpk';
+import { computedCatch } from '@/composable/computed/catchedComputed';
+import TextareaCopyable from '@/components/TextareaCopyable.vue';
+
+const hashTypes = [
+  'sha1', 'sha256', 'sha384', 'sha512', 'md5',
+];
+
+const verifyText = ref('');
+const verifySignature = ref('');
+const verifyPublicKey = ref('');
+const [verifyOutput, verifyError] = computedCatch(() => {
+  const publicKey = sshpk.parseKey(verifyPublicKey.value, 'auto');
+
+  const v = publicKey.createVerify();
+  v.update(verifyText.value);
+  return v.verify(verifySignature.value);
+}, {
+  defaultValue: '',
+  defaultErrorMessage: 'Unable to verify your text',
+});
+
+const signText = ref('');
+const signPrivateKey = ref('');
+const signPrivateKeyPassphrase = ref('');
+const signHashType = ref('sha1');
+const [signOutput, signError] = computedCatch(() => {
+  const privateKey = sshpk.parsePrivateKey(signPrivateKey.value, 'auto', { passphrase: signPrivateKeyPassphrase.value });
+  const s = privateKey.createSign(signHashType.value as sshpk.AlgorithmHashType);
+  s.update(signText.value);
+  const signature = s.sign();
+  return {
+    asn1: signature.toString('asn1'),
+    ssh: signature.toString('ssh'),
+  };
+}, {
+  defaultValue: {
+    asn1: '',
+    ssh: '',
+  },
+  defaultErrorMessage: 'Unable to sign your text',
+});
+</script>
+
+<template>
+  <div>
+    <c-card title="Sign">
+      <div>
+        <c-input-text
+          v-model:value="signText"
+          label="Your text:"
+          placeholder="The string to sign"
+          rows="4"
+          multiline raw-text monospace autosize flex-1
+        />
+        <c-select
+          v-model:value="signHashType"
+          label="Hash Type:"
+          :options="hashTypes"
+          placeholder="Select the hashing algorithm"
+        />
+        <div flex flex-1 flex-col gap-2>
+          <c-input-text
+            v-model:value="signPrivateKey"
+            label="Your private key:"
+            placeholder="The private key to use to sign message"
+            rows="5"
+            multiline raw-text monospace autosize flex-1
+          />
+
+          <c-input-text
+            v-model:value="signPrivateKeyPassphrase"
+            label="Your private key password:" clearable raw-text
+          />
+        </div>
+      </div>
+
+      <c-alert v-if="signError && signPrivateKey !== ''" type="error" mt-12 title="Error while signing">
+        {{ signError }}
+      </c-alert>
+
+      <n-form-item label="ASN1 Signature:" mt-3>
+        <TextareaCopyable
+          :value="signOutput?.asn1 || ''"
+          placeholder="ASN1 Signature"
+          multiline monospace readonly autosize mt-5
+        />
+      </n-form-item>
+      <n-form-item label="SSH Signature:" mt-3>
+        <TextareaCopyable
+          :value="signOutput?.ssh || ''"
+          placeholder="SSG Signature"
+          multiline monospace readonly autosize mt-5
+        />
+      </n-form-item>
+    </c-card>
+
+    <c-card title="Verify">
+      <div>
+        <c-input-text
+          v-model:value="verifyText"
+          label="Your text to verify:"
+          placeholder="The string to verify"
+          rows="4"
+          multiline raw-text monospace autosize flex-1
+        />
+
+        <c-input-text
+          v-model:value="verifySignature"
+          label="Associated signature:"
+          placeholder="Text signature"
+          rows="4"
+          multiline raw-text monospace autosize flex-1
+        />
+
+        <div flex flex-1 flex-col gap-2>
+          <c-input-text
+            v-model:value="verifyPublicKey"
+            label="Public key:"
+            placeholder="Public key"
+            rows="5"
+            multiline raw-text monospace autosize flex-1
+          />
+        </div>
+      </div>
+
+      <c-alert v-if="verifyError && verifyPublicKey !== ''" type="error" mt-12 title="Error while verifying">
+        {{ verifyError }}
+      </c-alert>
+      <c-alert v-if="verifyOutput && verifyPublicKey !== ''" type="error" mt-12 title="Signature failed">
+        Signature is NOT valid for the given text
+      </c-alert>
+      <c-alert v-if="!verifyOutput && verifyPublicKey !== ''" type="success" mt-12 title="Signature verified">
+        Signature is valid for the given text
+      </c-alert>
+    </c-card>
+  </div>
+</template>