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Add decryption example

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This commit is contained in:
Paul Schaub 2022-03-15 15:10:23 +01:00
parent 0819592b3a
commit d4d29553ec
Signed by: vanitasvitae
GPG key ID: 62BEE9264BF17311
1 changed files with 76 additions and 1 deletions
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77
pgpainless-core/src/test/java/org/pgpainless/example/DecryptOrVerify.java
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@ -5,6 +5,8 @@
package org.pgpainless.example;
import static org.junit.jupiter.api.Assertions.assertArrayEquals;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertTrue;
import java.io.ByteArrayInputStream;
@ -54,6 +56,11 @@ public class DecryptOrVerify {
"=JHMt\n" +
"-----END PGP PRIVATE KEY BLOCK-----\n";
// The key above is not password protected.
private static final SecretKeyRingProtector keyProtector = SecretKeyRingProtector.unprotectedKeys();
private static final String PLAINTEXT = "Hello, World!\n";
private static final String INBAND_SIGNED = "-----BEGIN PGP MESSAGE-----\n" +
"Version: PGPainless\n" +
"\n" +
@ -76,6 +83,27 @@ public class DecryptOrVerify {
"QUibivG5Slahz8l7PWnGkxbB2naQxgw=\n" +
"=oNIK\n" +
"-----END PGP SIGNATURE-----";
private static final String ENCRYPTED = "-----BEGIN PGP MESSAGE-----\n" +
"Version: PGPainless\n" +
"\n" +
"hF4DwqNy0B3ItTkSAQdArkuJHqPTVX+UaqQtHzppwOZDK0TfH1f/fAjrZaso/DUw\n" +
"ne6Xc1HYG+gTBWEQUw09m5b/f0E7DSeIg/ai/HKnF8mBSIQhphPR4yVAWypOOUmh\n" +
"0kABCiGjaJQyAzF/VtzC+ZVU67DfBl24CEPaRMumxieVUqo/VYWy3zyzE6H1zMqq\n" +
"/lWeVnK7NwtfArlhpRcph0S8\n" +
"=1cyl\n" +
"-----END PGP MESSAGE-----\n";
private static final String ENCRYPTED_AND_SIGNED = "-----BEGIN PGP MESSAGE-----\n" +
"Version: PGPainless\n" +
"\n" +
"hF4DwqNy0B3ItTkSAQdAGqwFJ6SRW6It9w+RBudeGbdUj8OZqwApqyvwbKUzJiYw\n" +
"WAcJOrGIbrK9bKzJdCLbVYkegILb6vqTuamU8iYDCccstV4Y2w0kT5ynHHPVFKfg\n" +
"0r8BUe/Mi8zL0Af6K2r6A9gq/Q8vmscoOB5mI5Yxrk48+rPcp0rZbSu9rC9pHZfs\n" +
"hhvxwGwG8EZm14pseHUZdoKldUD8tCbhkS7wDMOHzA1Fo1m1Yyjhe4kBaCrn9zhP\n" +
"YSeOzHtMxk5JBcrZW+LMMuRGNBzxc0R1yirqk8yymF1qzTTuYqziO0QxbW1gU00F\n" +
"ewdovd7Cx1Il8ONgRzGS3Wyb+iORNuhLpw+w2SV74Kg8XWLD7pDFgOuFZw39b+0X\n" +
"Nw==\n" +
"=9PiO\n" +
"-----END PGP MESSAGE-----";
private static PGPSecretKeyRing secretKey;
private static PGPPublicKeyRing certificate;
@ -86,6 +114,53 @@ public class DecryptOrVerify {
certificate = PGPainless.extractCertificate(secretKey);
}
@Test
public void decryptMessage() throws PGPException, IOException {
ConsumerOptions consumerOptions = new ConsumerOptions()
.addDecryptionKey(secretKey, keyProtector);
ByteArrayOutputStream plaintextOut = new ByteArrayOutputStream();
ByteArrayInputStream ciphertextIn = new ByteArrayInputStream(ENCRYPTED.getBytes(StandardCharsets.UTF_8));
DecryptionStream decryptionStream = PGPainless.decryptAndOrVerify()
.onInputStream(ciphertextIn)
.withOptions(consumerOptions);
Streams.pipeAll(decryptionStream, plaintextOut);
decryptionStream.close();
OpenPgpMetadata metadata = decryptionStream.getResult();
assertTrue(metadata.isEncrypted()); // message was encrypted
assertFalse(metadata.isVerified()); // We did not do any signature verification
assertEquals(PLAINTEXT, plaintextOut.toString());
}
@Test
public void decryptMessageAndVerifySignatures() throws PGPException, IOException {
ConsumerOptions consumerOptions = new ConsumerOptions()
.addDecryptionKey(secretKey, keyProtector)
.addVerificationCert(certificate);
ByteArrayOutputStream plaintextOut = new ByteArrayOutputStream();
ByteArrayInputStream ciphertextIn = new ByteArrayInputStream(ENCRYPTED_AND_SIGNED.getBytes(StandardCharsets.UTF_8));
DecryptionStream decryptionStream = PGPainless.decryptAndOrVerify()
.onInputStream(ciphertextIn)
.withOptions(consumerOptions);
Streams.pipeAll(decryptionStream, plaintextOut);
decryptionStream.close();
OpenPgpMetadata metadata = decryptionStream.getResult();
assertTrue(metadata.isEncrypted());
assertTrue(metadata.isSigned());
assertTrue(metadata.isVerified());
assertTrue(metadata.containsVerifiedSignatureFrom(certificate));
assertEquals(PLAINTEXT, plaintextOut.toString());
}
@Test
public void verifySignatures() throws PGPException, IOException {
ConsumerOptions options = new ConsumerOptions()
@ -104,7 +179,7 @@ public class DecryptOrVerify {
OpenPgpMetadata metadata = verificationStream.getResult();
assertTrue(metadata.isVerified());
assertArrayEquals("Hello, World!\n".getBytes(StandardCharsets.UTF_8), out.toByteArray());
assertEquals(PLAINTEXT, out.toString());
}
}