final String encrypted1 = cipher1.encryptText(original);
        final String encrypted2 = cipher2.encryptText(original);

        assertThat(encrypted1, is(not(encrypted2)));
        assertThat(cipher1.decryptText(encrypted1), is(original));
        assertThat(cipher2.decryptText(encrypted2), is(original));
    }

    @Test
    public void testEmptyString() {

        long sessionId = 0x123456789ABCDEF0L;

        // When - Encrypt
        byte[] encrypted = context.encryptMessage(plaintext, sessionId);

        // Then - Verify encrypted message structure
        assertNotNull(encrypted, "Encrypted message should not be null");
        assertTrue(encrypted.length > plaintext.length, "Encrypted message should be larger than plaintext");

        // Encrypt
        byte[] encrypted = storage.encryptCredentials(plaintext);
        assertNotNull(encrypted, "Encrypted data should not be null");
        assertTrue(encrypted.length > 0, "Encrypted data should have content");

        // Verify plaintext is not in encrypted data
        String encryptedStr = new String(encrypted);

### Using `mc encrypt` (recommended)

MinIO automatically encrypts all objects on buckets if KMS is successfully configured and bucket encryption configuration is enabled for each bucket as shown below:

```
mc encrypt set sse-s3 myminio/bucket/
```

Verify if MinIO has `sse-s3` enabled

```
mc encrypt info myminio/bucket/
Auto encryption 'sse-s3' is enabled

        }
    }

    /**
     * Encrypt credentials to a base64 string for storage
     *
     * @param plaintext the credentials to encrypt
     * @return base64 encoded encrypted credentials
     * @throws GeneralSecurityException if encryption fails
     */
    public String encryptToString(char[] plaintext) throws GeneralSecurityException {
        byte[] encrypted = encryptCredentials(plaintext);

        printStream.accept("  init - wizard to configure encryption (interactive only)");
        printStream.accept("  encrypt - encrypts input");
        printStream.accept("  decrypt - decrypts encrypted input");
        printStream.accept("");
    }

    @Override
    protected CommonsCliEncryptOptions copy(

        assertNotNull(cryptographer);

        String plainText = "Hello, World!";
        String encrypted = cryptographer.encrypt(plainText);
        assertNotNull(encrypted);
        assertFalse(plainText.equals(encrypted));

        String decrypted = cryptographer.decrypt(encrypted);
        assertEquals(plainText, decrypted);
    }

    @Test

        final int tagLength = getAuthTagLength();
        final byte[] ciphertext = new byte[encrypted.length - tagLength];
        final byte[] authTag = new byte[tagLength];

        // Use constant-time copy operations
        constantTimeCopy(encrypted, 0, ciphertext, 0, ciphertext.length);
        constantTimeCopy(encrypted, ciphertext.length, authTag, 0, tagLength);

        return new EncryptionResult(ciphertext, authTag);

	for i, test := range decryptObjectMetaTests {
		if encrypted, err := DecryptObjectInfo(&test.info, test.request); err != test.expErr {
			t.Errorf("Test %d: Decryption returned wrong error code: got %d , want %d", i, err, test.expErr)
		} else if _, enc := crypto.IsEncrypted(test.info.UserDefined); encrypted && enc != encrypted {
			t.Errorf("Test %d: Decryption thinks object is encrypted but it is not", i)
		} else if !encrypted && enc != encrypted {

* Nginx
* HAProxy

## Let's Encrypt { #lets-encrypt }

Before Let's Encrypt, these **HTTPS certificates** were sold by trusted third parties.

The process to acquire one of these certificates used to be cumbersome, require quite some paperwork and the certificates were quite expensive.

But then **[Let's Encrypt](https://letsencrypt.org/)** was created.