From 6f8c7fa81529721b2dc2b6c44e5db1f277db8d75 Mon Sep 17 00:00:00 2001
From: Martin Vogel <martin.vogel@sinc.de>
Date: Wed, 8 Jun 2022 11:45:46 +0200
Subject: [PATCH] #414 Add crypto interface for JWE
---
.../api/crypto/JWECryptoService.java | 53 +++++++++++++++++++
1 file changed, 53 insertions(+)
create mode 100644 api/src/main/java/fitconnect/api/crypto/JWECryptoService.java
diff --git a/api/src/main/java/fitconnect/api/crypto/JWECryptoService.java b/api/src/main/java/fitconnect/api/crypto/JWECryptoService.java
new file mode 100644
index 000000000..c23d3aebd
--- /dev/null
+++ b/api/src/main/java/fitconnect/api/crypto/JWECryptoService.java
@@ -0,0 +1,53 @@
+package fitconnect.api.crypto;
+
+import com.nimbusds.jose.jwk.RSAKey;
+import fitconnect.api.problems.DecryptionProblem;
+import fitconnect.api.problems.EncryptionProblem;
+
+/**
+ * A service that allows to encrypt and decrypt data and attachments of a submission
+ * via <a href="https://datatracker.ietf.org/doc/html/rfc7516">JSON-Web-Encryption</a>
+ */
+public interface JWECryptoService {
+
+ /**
+ * JWE encrypts a given string payload with the public key
+ *
+ * @param publicKey RSA public key the payload is encrypted with
+ * @param data json or xml data that should be encrypted
+ * @return a string serialization of the encrypted JWE object
+ * @throws EncryptionProblem if the payload cannot be encrypted or there was an issue with the key
+ */
+ String encryptString(final RSAKey publicKey, final String data) throws EncryptionProblem;
+
+ /**
+ * JWE encrypts a given byte[] payload with the public key
+ *
+ * @param publicKey RSA public key the payload is encrypted with
+ * @param bytes byte[] of the data that should be encrypted
+ * @return a string serialization of the encrypted JWE object
+ * @throws EncryptionProblem if the payload cannot be encrypted or there was an issue with the key
+ */
+ String encryptBytes(RSAKey publicKey, byte[] bytes) throws EncryptionProblem;
+
+ /**
+ * Decrypts a JWE encrypted string with the given private key
+ *
+ * @param privateKey RSA private key the encrypted JWE string is decrypted with
+ * @param encryptedData serialized encrypted JWE string that is decrypted
+ * @return a string serialization of the decrypted payload
+ * @throws DecryptionProblem if the payload cannot be decrypted or there was an issue with the key
+ */
+ String decryptString(final RSAKey privateKey, final String encryptedData) throws DecryptionProblem;
+
+ /**
+ * Decrypts a JWE encrypted byte[] with the given private key
+ *
+ * @param privateKey RSA private key the encrypted JWE string is decrypted with
+ * @param encryptedData serialized encrypted JWE string that is decrypted
+ * @return a byte[] of the decrypted string payload
+ * @throws DecryptionProblem if the payload cannot be decrypted or there was an issue with the key
+ */
+ byte[] decryptBytes(RSAKey privateKey, String encryptedData) throws DecryptionProblem;
+
+}
--
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