!24 【轻量级 PR】：PasswordEncoder 加密复杂度自定义

yudao-framework/yudao-spring-boot-starter-security/src/main/java/cn/iocoder/yudao/framework/security/config/SecurityProperties.java

@@ -37,4 +37,8 @@ public class SecurityProperties {
      */
     private List<String> permitAllUrls = Collections.emptyList();
 
+    /**
+     * PasswordEncoder 加密复杂度，越高开销越大
+     */
+    private Integer passwordEncoderLength = 4;
 }

yudao-framework/yudao-spring-boot-starter-security/src/main/java/cn/iocoder/yudao/framework/security/config/YudaoSecurityAutoConfiguration.java

@@ -69,7 +69,7 @@ public class YudaoSecurityAutoConfiguration {
      */
     @Bean
     public PasswordEncoder passwordEncoder() {
-        return new BCryptPasswordEncoder();
+        return new BCryptPasswordEncoder(securityProperties.getPasswordEncoderLength());
     }
 
     /**