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ekpayencryption
Commit e667b0fd by Zahid Hassan
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Ekpay encryption service done

parent 9eb439a9
Showing with 155 additions and 41 deletions
pom.xml
<?xml version="1.0" encoding="UTF-8"?> <?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"> xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion> <modelVersion>4.0.0</modelVersion>
<parent> <parent>
<groupId>org.springframework.boot</groupId> <groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId> <artifactId>spring-boot-starter-parent</artifactId>
<version>2.7.17</version> <version>2.7.17</version>
<relativePath/> <!-- lookup parent from repository --> <relativePath/> <!-- lookup parent from repository -->
</parent> </parent>
<groupId>bd.gov</groupId> <groupId>bd.gov</groupId>
<artifactId>ekpayencryption</artifactId> <artifactId>ekpayencryption</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<name>ekpayencryption</name> <name>ekpayencryption</name>
<description>Ekpay Encryption Decryption Service</description> <description>Ekpay Encryption Decryption Service</description>
<properties> <properties>
<java.version>1.8</java.version> <java.version>1.8</java.version>
</properties> </properties>
<dependencies> <dependencies>
<dependency> <dependency>
<groupId>org.springframework.boot</groupId> <groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId> <artifactId>spring-boot-starter-web</artifactId>
</dependency> </dependency>
<dependency> <dependency>
<groupId>org.springdoc</groupId> <groupId>org.springdoc</groupId>
<artifactId>springdoc-openapi-ui</artifactId> <artifactId>springdoc-openapi-ui</artifactId>
<version>1.6.15</version> <version>1.6.15</version>
</dependency> </dependency>
<dependency>
<groupId>com.nimbusds</groupId>
<artifactId>nimbus-jose-jwt</artifactId>
<version>9.30.2</version>
</dependency>
<dependency> <dependency>
<groupId>org.springframework.boot</groupId> <groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId> <artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope> <scope>test</scope>
</dependency> </dependency>
</dependencies> <dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
</dependencies>
<build> <build>
<plugins> <finalName>ekpayencryption</finalName>
<plugin> <plugins>
<groupId>org.springframework.boot</groupId> <plugin>
<artifactId>spring-boot-maven-plugin</artifactId> <groupId>org.springframework.boot</groupId>
</plugin> <artifactId>spring-boot-maven-plugin</artifactId>
</plugins> </plugin>
</build> </plugins>
</build>
</project> </project>
src/main/java/bd/gov/ekpayencryption/controller/EncryptionController.java 0 → 100644
package bd.gov.ekpayencryption.controller;
import bd.gov.ekpayencryption.dto.ResponseDto;
import bd.gov.ekpayencryption.dto.ResponseStatusEnum;
import bd.gov.ekpayencryption.service.EncryptionDecryptionService;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class EncryptionController {
@PostMapping(value = "/encrypt")
public ResponseEntity<String> encryptData(@RequestParam String secretKey, @RequestBody String plainText) {
String response = EncryptionDecryptionService.encrypt(plainText, secretKey);
return ResponseEntity.ok(response);
}
@PostMapping(value = "/decrypt")
public ResponseEntity<String> decryptData(@RequestParam String secretKey, @RequestBody String cipherText) {
String response = EncryptionDecryptionService.decrypt(cipherText, secretKey);
return ResponseEntity.ok(response);
}
}
src/main/java/bd/gov/ekpayencryption/dto/ResponseDto.java 0 → 100644
package bd.gov.ekpayencryption.dto;
import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
import lombok.NoArgsConstructor;
@Builder
@AllArgsConstructor
@NoArgsConstructor
@Data
public class ResponseDto {
private ResponseStatusEnum status;
private String data;
}
src/main/java/bd/gov/ekpayencryption/dto/ResponseStatusEnum.java 0 → 100644
package bd.gov.ekpayencryption.dto;
public enum ResponseStatusEnum {
SUCCESS, FAILED
}
src/main/java/bd/gov/ekpayencryption/service/EncryptionDecryptionService.java 0 → 100644
package bd.gov.ekpayencryption.service;
import com.nimbusds.jose.*;
import com.nimbusds.jose.crypto.DirectDecrypter;
import com.nimbusds.jose.crypto.DirectEncrypter;
import com.nimbusds.jose.crypto.MACSigner;
import com.nimbusds.jwt.EncryptedJWT;
import com.nimbusds.jwt.JWTClaimsSet;
import com.nimbusds.jwt.JWTParser;
import com.nimbusds.jwt.SignedJWT;
import java.util.Date;
public interface EncryptionDecryptionService {
static String decrypt(String cipherText, String sKey) {
EncryptedJWT encryptedJWT;
try {
encryptedJWT = (EncryptedJWT) JWTParser.parse(cipherText);
if (encryptedJWT.getState().equals(JWEObject.State.ENCRYPTED)) {
encryptedJWT.decrypt(new DirectDecrypter(sKey.getBytes()));
return encryptedJWT.getJWTClaimsSet().getStringClaim("pyld");
}
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
static String encrypt(String plainText, String sKey) {
String cipherText = null;
JWTClaimsSet claims = new JWTClaimsSet.Builder()
.subject("prtnr/tkn")
.issueTime(new Date())
.expirationTime(new Date())
.claim("pyld", plainText)
.build();
try {
JWSSigner signer = new MACSigner(sKey.getBytes());
SignedJWT signedToken = new SignedJWT(new JWSHeader(JWSAlgorithm.HS256), claims);
signedToken.sign(signer);
JWEHeader jweHeader = new JWEHeader.Builder(JWEAlgorithm.DIR, EncryptionMethod.A256GCM).contentType("JWT").build();
JWEObject jweObject = new JWEObject(jweHeader, signedToken.getPayload());
jweObject.encrypt(new DirectEncrypter(sKey.getBytes()));
cipherText = jweObject.serialize();
} catch (Exception e) {
e.printStackTrace();
}
return cipherText;
}
}
src/main/resources/application.yml 0 → 100644
server:
servlet:
context-path: /ekpayencryption
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