be config

Author: zahidayturan

.gitignore

@@ -33,4 +33,4 @@ build/
 .vscode/
 
 ### Project ###
-course-up-backend/src/main/resources/config.properties
+rsa-backend/src/main/resources/config.properties

rsa-backend/pom.xml

@@ -37,9 +37,9 @@
  <version>2.6.0</version>
  </dependency>
  <dependency>
- <groupId>org.projectlombok</groupId>
- <artifactId>lombok</artifactId>
- <version>1.18.34</version>
+ <groupId>org.springframework.boot</groupId>
+ <artifactId>spring-boot-starter-security</artifactId>
+ <version>RELEASE</version>
  <scope>compile</scope>
  </dependency>
  </dependencies>

rsa-backend/src/main/java/com/example/rsa/config/SecurityConfig.java

@@ -0,0 +1,55 @@
+package com.example.rsa.config;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.security.config.annotation.web.builders.HttpSecurity;
+import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
+import org.springframework.security.config.annotation.web.configurers.AbstractHttpConfigurer;
+import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
+import org.springframework.security.crypto.password.PasswordEncoder;
+import org.springframework.web.cors.CorsConfiguration;
+import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
+import org.springframework.web.cors.CorsConfigurationSource;
+import org.springframework.security.web.SecurityFilterChain;
+
+import java.util.List;
+
+import static org.springframework.security.config.Customizer.withDefaults;
+
+@Configuration
+@EnableWebSecurity
+public class SecurityConfig {
+
+ @Value("${cors.allowed-origins}")
+ private String allowedOrigins;
+
+ @Bean
+ public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {
+ http
+ .csrf(AbstractHttpConfigurer::disable)
+ .authorizeHttpRequests(authorize -> authorize
+ .anyRequest().permitAll()
+ )
+ .cors(withDefaults());
+
+ return http.build();
+ }
+
+ @Bean
+ public CorsConfigurationSource corsConfigurationSource() {
+ CorsConfiguration configuration = new CorsConfiguration();
+ configuration.setAllowedOrigins(List.of(allowedOrigins));
+ configuration.setAllowedMethods(List.of("GET", "POST", "PUT", "DELETE", "OPTIONS"));
+ configuration.setAllowedHeaders(List.of("*"));
+
+ UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
+ source.registerCorsConfiguration("/**", configuration);
+ return source;
+ }
+
+ @Bean
+ public PasswordEncoder passwordEncoder() {
+ return new BCryptPasswordEncoder();
+ }
+}

rsa-backend/src/main/java/com/example/rsa/service/RSAEncryption.java

@@ -17,8 +17,11 @@ public RSAEncryption() {
  int bitLength = 2048;
  BigInteger p = BigInteger.probablePrime(bitLength, random);
  BigInteger q = BigInteger.probablePrime(bitLength, random);
+ System.out.println(p);
+ System.out.println(q);
 
  n = p.multiply(q); // n = p * q
+ System.out.println(n);
  BigInteger phi = (p.subtract(BigInteger.ONE)).multiply(q.subtract(BigInteger.ONE)); // phi(n) = (p-1)*(q-1)
 
  // Public Key

rsa-backend/src/main/resources/application.properties

@@ -0,0 +1 @@
+spring.config.import=optional:classpath:config.properties