Package de.otto.kafka.messaging.e2ee

Class DecryptionService

java.lang.Object

de.otto.kafka.messaging.e2ee.DecryptionService

public final class DecryptionService
extends Object

This class do decrypt a message or payload.

See Also:

• EncryptionService

Constructor Summary

Constructors

Constructor	Description
DecryptionService(EncryptionKeyProvider encryptionKeyProvider)

Method Summary

Modifier and Type	Method	Description
byte[]	decryptToByteArray(String kafkaTopicName, AesEncryptedPayload encryptedPayload)	decrypts the given payload (depending on the content).
String	decryptToString(String kafkaTopicName, AesEncryptedPayload encryptedPayload)	decrypts the given payload (depending on the content).
boolean	hasSameEncryptionFlag(String kafkaTopicName, AesEncryptedPayload encryptedPayload)	This method checks if the encryption "flag" of the kafka topic matches the payload.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

DecryptionService

public DecryptionService(EncryptionKeyProvider encryptionKeyProvider)

Method Details

decryptToByteArray

public byte[] decryptToByteArray(String kafkaTopicName,
 AesEncryptedPayload encryptedPayload)

decrypts the given payload (depending on the content).

Parameters:

kafkaTopicName - name of the Kafka Topic the field value is from.

encryptedPayload - the (potentially) encrypted payload.

Returns:

The plain text payload

decryptToString

public String decryptToString(String kafkaTopicName,
 AesEncryptedPayload encryptedPayload)

decrypts the given payload (depending on the content).

Parameters:

kafkaTopicName - name of the Kafka Topic the field value is from.

encryptedPayload - the (potentially) encrypted payload.

Returns:

The plain text

hasSameEncryptionFlag

public boolean hasSameEncryptionFlag(String kafkaTopicName,
 AesEncryptedPayload encryptedPayload)

This method checks if the encryption "flag" of the kafka topic matches the payload. This method can be used by a kafka topic consumer the control the kafka producer.

Parameters:

kafkaTopicName - name of the Kafka Topic the payload is from.

encryptedPayload - the (potentially) encrypted payload.

Returns:

true when the topic is marked as encrypted and the payload is encrypted or when the topic is not encrypted as well as the payload.