diff --git a/frontend/package.json b/frontend/package.json
index 151b7f0..48c08f8 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -28,6 +28,9 @@
     "@angular/platform-browser": "^17.3.0",
     "@angular/platform-browser-dynamic": "^17.3.0",
     "@angular/router": "^17.3.0",
+    "@types/dompurify": "^3.0.5",
+    "crypto-js": "^4.2.0",
+    "dompurify": "^3.1.3",
     "primeng": "^17.11.0",
     "rxjs": "~7.8.0",
     "tslib": "^2.3.0",
@@ -45,6 +48,7 @@
     "@stylistic/eslint-plugin": "^2.1.0",
     "@stylistic/eslint-plugin-migrate": "^2.1.0",
     "@stylistic/eslint-plugin-ts": "^2.1.0",
+    "@types/crypto-js": "^4.2.2",
     "@types/jest": "^29.5.12",
     "@typescript-eslint/eslint-plugin": "6.19.0",
     "@typescript-eslint/parser": "6.19.0",
diff --git a/frontend/pnpm-lock.yaml b/frontend/pnpm-lock.yaml
index b51b3d7..0e4e337 100644
--- a/frontend/pnpm-lock.yaml
+++ b/frontend/pnpm-lock.yaml
@@ -29,6 +29,15 @@ dependencies:
   '@angular/router':
     specifier: ^17.3.0
     version: 17.3.0(@angular/common@17.3.0)(@angular/core@17.3.0)(@angular/platform-browser@17.3.0)(rxjs@7.8.1)
+  '@types/dompurify':
+    specifier: ^3.0.5
+    version: 3.0.5
+  crypto-js:
+    specifier: ^4.2.0
+    version: 4.2.0
+  dompurify:
+    specifier: ^3.1.3
+    version: 3.1.3
   primeng:
     specifier: ^17.11.0
     version: 17.11.0(@angular/common@17.3.0)(@angular/core@17.3.0)(@angular/forms@17.3.0)(rxjs@7.8.1)(zone.js@0.14.4)
@@ -76,6 +85,9 @@ devDependencies:
   '@stylistic/eslint-plugin-ts':
     specifier: ^2.1.0
     version: 2.1.0(eslint@8.57.0)(typescript@5.4.2)
+  '@types/crypto-js':
+    specifier: ^4.2.2
+    version: 4.2.2
   '@types/jest':
     specifier: ^29.5.12
     version: 29.5.12
@@ -3231,6 +3243,16 @@ packages:
       '@types/node': 20.11.27
     dev: true
 
+  /@types/crypto-js@4.2.2:
+    resolution: {integrity: sha512-sDOLlVbHhXpAUAL0YHDUUwDZf3iN4Bwi4W6a0W0b+QcAezUbRtH4FVb+9J4h+XFPW7l/gQ9F8qC7P+Ec4k8QVQ==}
+    dev: true
+
+  /@types/dompurify@3.0.5:
+    resolution: {integrity: sha512-1Wg0g3BtQF7sSb27fJQAKck1HECM6zV1EB66j8JH9i3LCjYabJa0FSdiSgsD5K/RbrsR0SiraKacLB+T8ZVYAg==}
+    dependencies:
+      '@types/trusted-types': 2.0.7
+    dev: false
+
   /@types/eslint-scope@3.7.7:
     resolution: {integrity: sha512-MzMFlSLBqNF2gcHWO0G1vP/YQyfvrxZ0bF+u7mzUdZ1/xK4A4sru+nraZz5i3iEIk1l1uyicaDVTB4QbbEkAYg==}
     dependencies:
@@ -3400,6 +3422,10 @@ packages:
     resolution: {integrity: sha512-/Ad8+nIOV7Rl++6f1BdKxFSMgmoqEoYbHRpPcx3JEfv8VRsQe9Z4mCXeJBzxs7mbHY/XOZZuXlRNfhpVPbs6ZA==}
     dev: true
 
+  /@types/trusted-types@2.0.7:
+    resolution: {integrity: sha512-ScaPdn1dQczgbl0QFTeTOmVHFULt394XJgOQNoyVhZ6r2vLnMLJfBPd53SB52T/3G36VI1/g2MZaX0cwDuXsfw==}
+    dev: false
+
   /@types/ws@8.5.10:
     resolution: {integrity: sha512-vmQSUcfalpIq0R9q7uTo2lXs6eGIpt9wtnLdMv9LVpIjCA/+ufZRozlVoVelIYixx1ugCBKDhn89vnsEGOCx9A==}
     dependencies:
@@ -4710,6 +4736,10 @@ packages:
       which: 2.0.2
     dev: true
 
+  /crypto-js@4.2.0:
+    resolution: {integrity: sha512-KALDyEYgpY+Rlob/iriUtjV6d5Eq+Y191A5g4UqLAi8CyGP9N1+FdVbkc1SxKc2r4YAYqG8JzO2KGL+AizD70Q==}
+    dev: false
+
   /css-loader@6.10.0(webpack@5.90.3):
     resolution: {integrity: sha512-LTSA/jWbwdMlk+rhmElbDR2vbtQoTBPr7fkJE+mxrHj+7ru0hUmHafDRzWIjIHTwpitWVaqY2/UWGRca3yUgRw==}
     engines: {node: '>= 12.13.0'}
@@ -4998,6 +5028,10 @@ packages:
       domelementtype: 2.3.0
     dev: true
 
+  /dompurify@3.1.3:
+    resolution: {integrity: sha512-5sOWYSNPaxz6o2MUPvtyxTTqR4D3L77pr5rUQoWgD5ROQtVIZQgJkXbo1DLlK3vj11YGw5+LnF4SYti4gZmwng==}
+    dev: false
+
   /domutils@3.1.0:
     resolution: {integrity: sha512-H78uMmQtI2AhgDJjWeQmHwJJ2bLPD3GMmO7Zja/ZZh84wkm+4ut+IUnUdRa8uCGX88DiVx1j6FRe1XfxEgjEZA==}
     dependencies: