diff --git a/build.gradle b/build.gradle
index d1ff2b6..122eeaf 100644
--- a/build.gradle
+++ b/build.gradle
@@ -55,6 +55,8 @@ dependencies {
 
     implementation 'org.springframework.boot:spring-boot-starter-data-redis'
 
+    implementation 'org.web3j:core:4.12.1'
+
 }
 
 tasks.named('test') {
diff --git a/src/main/java/com/lovecloud/blockchain/application/WalletManager.java b/src/main/java/com/lovecloud/blockchain/application/WalletManager.java
new file mode 100644
index 0000000..5a93943
--- /dev/null
+++ b/src/main/java/com/lovecloud/blockchain/application/WalletManager.java
@@ -0,0 +1,52 @@
+package com.lovecloud.blockchain.application;
+
+import com.lovecloud.blockchain.exception.FailCreateKeyPairException;
+import com.lovecloud.blockchain.exception.FailCreateWalletException;
+import com.lovecloud.blockchain.exception.FailVerifyWalletException;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Service;
+import org.web3j.crypto.Credentials;
+import org.web3j.crypto.ECKeyPair;
+import org.web3j.crypto.Keys;
+import org.web3j.crypto.WalletUtils;
+
+import java.io.File;
+
+@Slf4j
+@Service
+public class WalletManager {
+
+    private final String password = "password";
+
+    public String creatWallet() {
+
+        ECKeyPair ecKeyPair = null;
+
+        try{
+            ecKeyPair = Keys.createEcKeyPair();
+        } catch (Exception e) {
+            throw new FailCreateKeyPairException();
+        }
+
+        String walletDirectory = "./";
+
+        try{
+            return WalletUtils.generateWalletFile(password, ecKeyPair, new File(walletDirectory), true);
+        } catch (Exception e) {
+            throw new FailCreateWalletException();
+        }
+
+    }
+
+
+    public Credentials verifyWallet(String walletFileName) {
+        String walletDirectory = "./";
+        Credentials credentials = null;
+        try {
+            credentials = WalletUtils.loadCredentials(password, walletDirectory + walletFileName);
+            return credentials;
+        } catch (Exception e) {
+            throw new FailVerifyWalletException();
+        }
+    }
+}
diff --git a/src/main/java/com/lovecloud/blockchain/exception/FailCreateKeyPairException.java b/src/main/java/com/lovecloud/blockchain/exception/FailCreateKeyPairException.java
new file mode 100644
index 0000000..ea88a04
--- /dev/null
+++ b/src/main/java/com/lovecloud/blockchain/exception/FailCreateKeyPairException.java
@@ -0,0 +1,14 @@
+package com.lovecloud.blockchain.exception;
+
+import com.lovecloud.global.exception.ErrorCode;
+import com.lovecloud.global.exception.LoveCloudException;
+
+import static org.springframework.http.HttpStatus.INTERNAL_SERVER_ERROR;
+
+
+public class FailCreateKeyPairException extends LoveCloudException{
+    public FailCreateKeyPairException() {
+        super(new ErrorCode(INTERNAL_SERVER_ERROR, "키 페어 생성에 실패했습니다."));
+    }
+}
+
diff --git a/src/main/java/com/lovecloud/blockchain/exception/FailCreateWalletException.java b/src/main/java/com/lovecloud/blockchain/exception/FailCreateWalletException.java
new file mode 100644
index 0000000..d182c3e
--- /dev/null
+++ b/src/main/java/com/lovecloud/blockchain/exception/FailCreateWalletException.java
@@ -0,0 +1,12 @@
+package com.lovecloud.blockchain.exception;
+
+import com.lovecloud.global.exception.ErrorCode;
+import com.lovecloud.global.exception.LoveCloudException;
+
+import static org.springframework.http.HttpStatus.INTERNAL_SERVER_ERROR;
+
+public class FailCreateWalletException extends LoveCloudException{
+    public FailCreateWalletException() {
+        super(new ErrorCode(INTERNAL_SERVER_ERROR, "지갑 생성에 실패했습니다."));
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/com/lovecloud/blockchain/exception/FailVerifyWalletException.java b/src/main/java/com/lovecloud/blockchain/exception/FailVerifyWalletException.java
new file mode 100644
index 0000000..dccb2bb
--- /dev/null
+++ b/src/main/java/com/lovecloud/blockchain/exception/FailVerifyWalletException.java
@@ -0,0 +1,12 @@
+package com.lovecloud.blockchain.exception;
+
+import com.lovecloud.global.exception.ErrorCode;
+import com.lovecloud.global.exception.LoveCloudException;
+
+import static org.springframework.http.HttpStatus.INTERNAL_SERVER_ERROR;
+
+public class FailVerifyWalletException extends LoveCloudException {
+    public FailVerifyWalletException() {
+        super(new ErrorCode(INTERNAL_SERVER_ERROR, "지갑 검증에 실패했습니다."));
+    }
+}
diff --git a/src/main/java/com/lovecloud/global/config/Web3jConfig.java b/src/main/java/com/lovecloud/global/config/Web3jConfig.java
new file mode 100644
index 0000000..7a10ee7
--- /dev/null
+++ b/src/main/java/com/lovecloud/global/config/Web3jConfig.java
@@ -0,0 +1,15 @@
+package com.lovecloud.global.config;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.web3j.protocol.Web3j;
+import org.web3j.protocol.http.HttpService;
+
+@Configuration
+public class Web3jConfig {
+
+    @Bean
+    public Web3j web3j() {
+        return Web3j.build(new HttpService("${web3j.private_network}"));
+    }
+}
diff --git a/src/main/resources/application.yml b/src/main/resources/application.yml
index dfaeb3c..b42100a 100644
--- a/src/main/resources/application.yml
+++ b/src/main/resources/application.yml
@@ -6,7 +6,7 @@ spring:
     password: ${SPRING_DATASOURCE_PASSWORD}
   jpa:
     hibernate:
-      ddl-auto: create
+      ddl-auto: update
     properties:
       hibernate:
         format_sql: true
@@ -53,3 +53,5 @@ jwt:
   token-expiration-time: 360000000
   issuer: ${JWT_ISSUER}
 
+web3j:
+  private-network: ${WEB3J_PRIVATE_NETWORK}