diff --git a/.editorconfig b/.editorconfig
index 96b4507..c2db456 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -17,6 +17,10 @@ tab_width = 2
 [*.bat]
 end_of_line = crlf
 
+[*.{cer,pem}]
+max_line_length = 64
+insert_final_newline = false
+
 # noinspection EditorConfigKeyCorrectness
 [*.{kt,kts}]
 ij_kotlin_packages_to_use_import_on_demand = unset
diff --git a/.gitignore b/.gitignore
index 5a979af..004b1eb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -38,3 +38,6 @@ out/
 
 ### Kotlin ###
 .kotlin
+
+#### Hlæja ###
+/cert/
diff --git a/README.md b/README.md
index bb5a164..269ddd0 100644
--- a/README.md
+++ b/README.md
@@ -7,6 +7,7 @@ In realms of connectedness, where devices roam free, A nexus of management, harm
 | name                   | required | info                    |
 |------------------------|:--------:|-------------------------|
 | spring.profiles.active | ✓  | Spring Boot environment |
+| jwt.public-key         | ✓  | JWT public key file     |
 
 *Required: ✓ can be stored as text, and ✗ need to be stored as secret.*
 
@@ -16,6 +17,12 @@ Run `release.sh` script from `master` branch.
 
 ## Development Information
 
+### Public RSA Key
+
+This service uses the public key from **[Hlæja Account Register](https://github.com/swordsteel/hlaeja-account-registry)** to identify users. To set up user identification for local development, copy the `public_key.pem` file from the `./cert` directory in **Hlæja Account Register** into the `./cert` directory of this project.
+
+*Note: For more information on generating RSA keys, please refer to our [generate RSA key](https://github.com/swordsteel/hlaeja-development/blob/master/doc/rsa_key.md) documentation.*
+
 ### Global Setting
 
 The following global settings are used in Hlaeja Device Registry. You can configure these settings using either Gradle properties or alternatively environment variables. 
diff --git a/build.gradle.kts b/build.gradle.kts
index 9165ecf..a4fcda2 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -1,6 +1,7 @@
 plugins {
     alias(hlaeja.plugins.kotlin.jvm)
     alias(hlaeja.plugins.kotlin.spring)
+    alias(hlaeja.plugins.ltd.hlaeja.plugin.certificate)
     alias(hlaeja.plugins.ltd.hlaeja.plugin.service)
     alias(hlaeja.plugins.spring.dependency.management)
     alias(hlaeja.plugins.springframework.boot)
@@ -8,9 +9,11 @@ plugins {
 
 dependencies {
     implementation(hlaeja.fasterxml.jackson.module.kotlin)
+    implementation(hlaeja.jjwt.api)
     implementation(hlaeja.kotlin.logging)
     implementation(hlaeja.kotlin.reflect)
     implementation(hlaeja.kotlinx.coroutines)
+    implementation(hlaeja.library.hlaeja.jwt)
     implementation(hlaeja.projectreactor.kotlin.reactor.extensions)
     implementation(hlaeja.springboot.starter.actuator)
     implementation(hlaeja.springboot.starter.security)
@@ -28,3 +31,9 @@ dependencies {
 }
 
 group = "ltd.lulz"
+
+tasks {
+    named("processResources") {
+        dependsOn("copyCertificates")
+    }
+}
diff --git a/src/main/resources/application.yml b/src/main/resources/application.yml
index 682eba1..b593733 100644
--- a/src/main/resources/application.yml
+++ b/src/main/resources/application.yml
@@ -23,6 +23,9 @@ management:
     info:
       enabled: true
 
+jwt:
+  public-key: cert/public_key.pem
+
 ---
 ###############################
 ### Development environment ###
diff --git a/src/test/resources/application.yml b/src/test/resources/application.yml
new file mode 100644
index 0000000..ba1905e
--- /dev/null
+++ b/src/test/resources/application.yml
@@ -0,0 +1,2 @@
+jwt:
+  public-key: cert/valid-public-key.pem
diff --git a/src/test/resources/cert/valid-public-key.pem b/src/test/resources/cert/valid-public-key.pem
new file mode 100644
index 0000000..cdb4982
--- /dev/null
+++ b/src/test/resources/cert/valid-public-key.pem
@@ -0,0 +1,9 @@
+-----BEGIN PUBLIC KEY-----
+MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3ZdlbISX729m5Ur1pVhg
+XIvazcgUt0T0G32ML0tfwQ4aWTfwPII0SQRThaN6eiiBMRa0V8JMih1LT8JmGgst
+dEx2nhMbVs/Osu8MhmP86c+HB/jPa1+0IR1TZKXoZoF52D2ZtoVf+mOWggAcm1R+
+V0Fj2cR/pgLkVt3GKUE2OokFC1iFUQFjThd1EzKcOv53TUek8FY8t66npQ4t3unD
+bXZKoGXMuXCqZVykMbGTUQFRuT3NAOXRrJP+UDeY2uM2Yk98J+8FtLDYD6jpmyi0
+ghv6k8pK1w1n5NI3atVv5ZMUeQZ36AXL8SZi1105mamhLVQ0e0JixoMOPh7ziFyv
+uwIDAQAB
+-----END PUBLIC KEY-----