feat(cryptography): add create signature action

packages/backend/src/apps/cryptography/actions/create-hmac/index.js

@@ -4,7 +4,7 @@ import defineAction from '../../../../helpers/define-action.js';
 export default defineAction({
   name: 'Create HMAC',
   key: 'createHmac',
-  description: 'Create a Hash-based Message Authentication Code (HMAC) using the specified algorithm, secret key, and message data.',
+  description: 'Create a Hash-based Message Authentication Code (HMAC) using the specified algorithm, secret key, and message.',
   arguments: [
     {
       label: 'Algorithm',
@@ -14,10 +14,18 @@ export default defineAction({
       value: 'sha256',
       description: 'Specifies the cryptographic hash function to use for HMAC generation.',
       options: [
-        { label: 'SHA-256 ', value: 'sha256' },
+        { label: 'SHA-256', value: 'sha256' },
       ],
       variables: true,
     },
+    {
+      label: 'Message',
+      key: 'message',
+      type: 'string',
+      required: true,
+      description: 'The input message to be hashed. This is the value that will be processed to generate the HMAC.',
+      variables: true,
+    },
     {
       label: 'Secret key',
       key: 'secretKey',
@@ -26,19 +34,11 @@ export default defineAction({
       description: 'The secret key used to create the HMAC.',
       variables: true,
     },
-    {
-      label: 'Message data',
-      key: 'data',
-      type: 'string',
-      required: true,
-      description: 'The input data or message to be hashed. This is the data that will be processed to generate the HMAC.',
-      variables: true,
-    },
   ],
 
   async run($) {
     const hash = createHmac($.step.parameters.algorithm, $.step.parameters.secretKey)
-      .update($.step.parameters.data)
+      .update($.step.parameters.message)
       .digest('hex');
 
     $.setActionItem({

packages/backend/src/apps/cryptography/actions/create-rsa-sha256-signature/index.js

@@ -0,0 +1,51 @@
+import crypto from 'node:crypto';
+import defineAction from '../../../../helpers/define-action.js';
+
+export default defineAction({
+  name: 'Create Signature',
+  key: 'createSignature',
+  description: 'Create a digital signature using the specified algorithm, secret key, and message.',
+  arguments: [
+    {
+      label: 'Algorithm',
+      key: 'algorithm',
+      type: 'dropdown',
+      required: true,
+      value: 'RSA-SHA256',
+      description: 'Specifies the cryptographic hash function to use for HMAC generation.',
+      options: [
+        { label: 'RSA-SHA256', value: 'RSA-SHA256' },
+      ],
+      variables: true,
+    },
+    {
+      label: 'Message',
+      key: 'message',
+      type: 'string',
+      required: true,
+      description: 'The input message to be signed.',
+      variables: true,
+    },
+    {
+      label: 'Private key',
+      key: 'privateKey',
+      type: 'string',
+      required: true,
+      description: 'The RSA private key in PEM format used for signing.',
+      variables: true,
+    }
+  ],
+
+  async run($) {
+    const signer = crypto.createSign($.step.parameters.algorithm);
+    signer.update($.step.parameters.message);
+    signer.end();
+    const signature = signer.sign($.step.parameters.privateKey, 'hex');
+
+    $.setActionItem({
+      raw: {
+        signature
+      },
+    });
+  },
+});

packages/backend/src/apps/cryptography/actions/index.js

@@ -1,3 +1,4 @@
 import createHmac from './create-hmac/index.js';
+import createRsaSha256Signature from './create-rsa-sha256-signature/index.js';
 
-export default [createHmac];
+export default [createHmac, createRsaSha256Signature];

packages/docs/pages/apps/cryptography/actions.md

@@ -2,7 +2,9 @@
 favicon: /favicons/cryptography.svg
 items:
   - name: Create HMAC
-    desc: Create a Hash-based Message Authentication Code (HMAC) using the specified algorithm, secret key, and message data.
+    desc: Create a Hash-based Message Authentication Code (HMAC) using the specified algorithm, secret key, and message.
+  - name: Create Signature
+    desc: Create a digital signature using the specified algorithm, secret key, and message.
 ---
 
 <script setup>