diff --git a/homework/password-check/validation.cpp b/homework/password-check/validation.cpp
index a2f12ff3..ed9ef4dc 100644
--- a/homework/password-check/validation.cpp
+++ b/homework/password-check/validation.cpp
@@ -1,2 +1,61 @@
 #include "validation.hpp"
-// TODO: Put implementations here
\ No newline at end of file
+#include <algorithm>
+#include <iostream>
+#include <string>
+
+std::string getErrorMessage(ErrorCode errorCode) {
+    switch (errorCode) {
+    case ErrorCode::Ok:
+        return "Ok";
+    case ErrorCode::PasswordNeedsAtLeastNineCharacters:
+        return "Password needs to have at least nine characters";
+    case ErrorCode::PasswordNeedsAtLeastOneNumber:
+        return "Password needs to have at least one number";
+    case ErrorCode::PasswordNeedsAtLeastOneSpecialCharacter:
+        return "Password needs to have at least one special character";
+    case ErrorCode::PasswordNeedsAtLeastOneUppercaseLetter:
+        return "Password needs to have at least one uppercase letter";
+    case ErrorCode::PasswordsDoNotMatch:
+        return "Passwords do not match";
+    default:
+        return "-1";
+    }
+}
+
+bool doPasswordsMatch(std::string pass1, std::string pass2) {
+    if (pass1.empty() && pass2.empty()) {
+        return true;
+    }
+
+    if (pass1.empty() || pass2.empty()) {
+        return false;
+    }
+
+    if (pass1.compare(pass2) == 0) {
+        return true;
+    } else {
+        return false;
+    }
+}
+
+ErrorCode checkPasswordRules(std::string pass) {
+    if (pass.length() < 9) {
+        return ErrorCode::PasswordNeedsAtLeastNineCharacters;
+    } else if (!std::any_of(pass.begin(), pass.end(), isdigit)) {
+        return ErrorCode::PasswordNeedsAtLeastOneNumber;
+    } else if (std::all_of(pass.begin(), pass.end(), isalnum)) {
+        return ErrorCode::PasswordNeedsAtLeastOneSpecialCharacter;
+    } else if (!std::any_of(pass.begin(), pass.end(), isupper)) {
+        return ErrorCode::PasswordNeedsAtLeastOneUppercaseLetter;
+    } else {
+        return ErrorCode::Ok;
+    }
+}
+
+ErrorCode checkPassword(std::string pass1, std::string pass2) {
+    if (doPasswordsMatch(pass1, pass2)) {
+        return checkPasswordRules(pass1);
+    } else {
+        return ErrorCode::PasswordsDoNotMatch;
+    }
+}
\ No newline at end of file
diff --git a/homework/password-check/validation.hpp b/homework/password-check/validation.hpp
index 85160868..e0bd8b69 100644
--- a/homework/password-check/validation.hpp
+++ b/homework/password-check/validation.hpp
@@ -1,2 +1,16 @@
-// TODO: I'm empty :) Put enum and function headers here.
-// Don't forget the header guard - #pragma once
\ No newline at end of file
+#pragma once
+#include <string>
+
+enum class ErrorCode {
+    Ok,
+    PasswordNeedsAtLeastNineCharacters,
+    PasswordNeedsAtLeastOneNumber,
+    PasswordNeedsAtLeastOneSpecialCharacter,
+    PasswordNeedsAtLeastOneUppercaseLetter,
+    PasswordsDoNotMatch
+};
+
+std::string getErrorMessage(ErrorCode errorCode);
+bool doPasswordsMatch(std::string pass1, std::string pass2);
+ErrorCode checkPasswordRules(std::string pass);
+ErrorCode checkPassword(std::string pass1, std::string pass2);
\ No newline at end of file