diff --git a/blog/comments/services.py b/blog/comments/services.py
new file mode 100644
index 0000000..3ef0892
--- /dev/null
+++ b/blog/comments/services.py
@@ -0,0 +1,14 @@
+import base64
+
+
+def encode_nickname(nickname: str) -> bytes:
+    """Кодирует nickname в base64."""
+    return base64.b64encode(bytes(nickname, "utf-8"))
+
+
+def decode_nickname(encoded_nickname: str) -> str:
+    """Декодирует base64, содержащийся в строке encoded_nickname. """
+
+    # пришлось отрезать кусок b из самой строки, потому что байты были
+    # всунуты в строку, и base64 не понимал
+    return base64.b64decode(encoded_nickname[1:]).decode()
diff --git a/blog/comments/views.py b/blog/comments/views.py
index 88918bc..3351516 100644
--- a/blog/comments/views.py
+++ b/blog/comments/views.py
@@ -8,6 +8,7 @@ from django.db import IntegrityError
 import hashlib
 
 from typing import Union
+from . import services
 
 
 def leave_comment(request, post_id):
@@ -36,7 +37,7 @@ def leave_comment(request, post_id):
     # если секрет не совпал, то польозхватель Anonym
 
     author = get_or_create_author(request.POST["name"], request.POST["secret"])
-    nickname = request.POST["name"]
+    nickname = request.POST["name"].strip()
 
     if not author:
         post.comment_set.create(
@@ -52,7 +53,7 @@ def leave_comment(request, post_id):
             reply=parent,
         )
     response = HttpResponseRedirect(reverse("posts:detail", args=(post.id,)))
-    response.set_cookie("nickname", nickname, max_age=300)
+    response.set_cookie("nickname", services.encode_nickname(nickname), max_age=300)
 
     return response
 
@@ -66,7 +67,7 @@ def get_or_create_author(name: str, secret: str) -> Union[CommentAuthor, None]:
 
     try:
         author, result = CommentAuthor.objects.get_or_create(
-            author_name=name, author_secret_hash=hash
+            author_name=name.strip(), author_secret_hash=hash
         )
     except IntegrityError:
         # если имя/хеш не совпадают, то игнорируем такого автора и отображаем ником
diff --git a/blog/posts/views.py b/blog/posts/views.py
index feae15a..60c5b76 100644
--- a/blog/posts/views.py
+++ b/blog/posts/views.py
@@ -4,7 +4,7 @@ from django.http import HttpResponse
 from .models import Post
 from comments.models import Comment
 
-import re
+from comments import services as comments_services
 
 
 def index(request):
@@ -16,12 +16,14 @@ def index(request):
 def detail(request, post_id):
     """Страница с просмотром поста."""
     # вынести отсюда все. Также надо обработать текст поста тут.
+
     post = get_object_or_404(Post, pk=post_id)
     comments = post.comment_set.all()
     comments_count = comments.count()
-    nickname = (
-        request.COOKIES.get("nickname") if request.COOKIES.get("nickname") else ""
-    )
+
+    _nickname = request.COOKIES.get("nickname")
+    nickname = comments_services.decode_nickname(_nickname) if _nickname else ""
+
     return render(
         request,
         "posts/post.html",