feat: add Argon2 service

pom.xml

@@ -36,6 +36,13 @@
 				<version>2.4.5</version>
 			</dependency>
 
+			<!-- https://mvnrepository.com/artifact/org.springframework.security/spring-security-core -->
+			<dependency>
+				<groupId>org.springframework.security</groupId>
+				<artifactId>spring-security-core</artifactId>
+				<version>5.4.6</version>
+			</dependency>
+
 			<dependency>
 				<groupId>org.springframework</groupId>
 				<artifactId>spring-core</artifactId>

service/pom.xml

@@ -88,6 +88,12 @@
             <artifactId>dozer-core</artifactId>
         </dependency>
 
+        <!-- https://mvnrepository.com/artifact/org.springframework.security/spring-security-core -->
+        <dependency>
+            <groupId>org.springframework.security</groupId>
+            <artifactId>spring-security-core</artifactId>
+        </dependency>
+
     </dependencies>
 
 

service/src/main/java/cz/muni/fi/pa165/icehockeymanager/config/ApplicationConfig.java

@@ -7,6 +7,7 @@ import org.springframework.context.annotation.ComponentScan;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.Import;
 import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
+import org.springframework.security.crypto.argon2.Argon2PasswordEncoder;
 import org.springframework.transaction.annotation.EnableTransactionManagement;
 
 
@@ -24,4 +25,17 @@ public class ApplicationConfig {
         return mapperBuilder.build();
     }
 
+    @Bean
+    public Argon2PasswordEncoder argon2Encoder() {
+        /*
+        Recommended parameters:
+            - hash and salt - each at least 16
+            - parallellism - twice the core count
+            - memory - at least 4 GB
+            - iterations - adjustable
+        Note: adjust memory and iterations to hit response time: 0.5-1 sec
+         */
+        int cores = Runtime.getRuntime().availableProcessors();
+        return new Argon2PasswordEncoder(32, 32, cores*2, 3906250, 1);
+    }
 }

service/src/main/java/cz/muni/fi/pa165/icehockeymanager/services/Argon2Service.java

+package cz.muni.fi.pa165.icehockeymanager.services;
+
+public interface Argon2Service {
+
+}

service/src/main/java/cz/muni/fi/pa165/icehockeymanager/services/Argon2ServiceImpl.java

+package cz.muni.fi.pa165.icehockeymanager.services;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.security.crypto.argon2.Argon2PasswordEncoder;
+import org.springframework.stereotype.Service;
+
+import javax.transaction.Transactional;
+
+@Service
+@Transactional
+public class Argon2ServiceImpl {
+    private final Argon2PasswordEncoder encoder;
+
+    @Autowired
+    public Argon2ServiceImpl(Argon2PasswordEncoder encoder) {
+        this.encoder = encoder;
+    }
+}