{
   "Version":"2012-10-17",
   "Id":"PutObjectPolicy",
   "Statement":[{
         "Sid":"DenyObjectsThatAreNotSSEKMS",
         "Effect":"Deny",
         "Principal":"*",
         "Action":"s3:PutObject",
         "Resource":"arn:aws:s3:::multi-key-poc/*",
         "Condition":{
            "Null":{
               "s3:x-amz-server-side-encryption-aws-kms-key-id":"true"
            }
         }
      }
   ]

{
   "Version":"2012-10-17",
   "Id":"PutObjectPolicy1",
   "Statement":[{
         "Sid":"DenyObjectsWithInvalidSSEKMS",
         "Effect":"Deny",
         "Principal":"*",
         "Action":"s3:PutObject",
         "Resource":"arn:aws:s3:::multi-key-poc/*",
         "Condition":{
            "StringNotEquals":{
               "s3:x-amz-server-side-encryption-aws-kms-key-id":"minio-default-key"
            }
         }
      }
   ]

        assertEquals("D2guest", permissionHelper.encode("(deny){group}guest"));
        assertEquals("DRguest", permissionHelper.encode("(deny){role}guest"));

        assertEquals("(deny){user}guest", permissionHelper.decode("D1guest"));
        assertEquals("(deny){group}guest", permissionHelper.decode("D2guest"));
        assertEquals("(deny){role}guest", permissionHelper.decode("DRguest"));

mc admin user add myminio/ minio123 minio123

mc admin policy create myminio/ deny-non-sse-kms-pol ./docs/iam/policies/deny-non-sse-kms-objects.json
mc admin policy create myminio/ deny-invalid-sse-kms-pol ./docs/iam/policies/deny-objects-with-invalid-sse-kms-key-id.json

mc admin policy attach myminio deny-non-sse-kms-pol --user minio123
mc admin policy attach myminio deny-invalid-sse-kms-pol --user minio123

 * the operation and the desired access bits are compared to the SID
 * and access mask of each ACE. If the SID matches, the allow/deny flags
 * and access mask are considered. If the ACE is a "deny"
 * ACE and <i>any</i> of the desired access bits match bits in the access
 * mask of the ACE, the whole access check fails. If the ACE is an "allow"

 * the operation and the desired access bits are compared to the SID
 * and access mask of each ACE. If the SID matches, the allow/deny flags
 * and access mask are considered. If the ACE is a "deny"
 * ACE and <i>any</i> of the desired access bits match bits in the access
 * mask of the ACE, the whole access check fails. If the ACE is an "allow"

        assertNotNull(ace.getSID());
    }

    @Test
    @DisplayName("Test decode with deny ACE")
    void testDecodeDenyACE() throws Exception {
        // Prepare test data - Deny ACE
        testBuffer = new byte[100];
        testBuffer[0] = 0x01; // Deny ACE (non-zero)
        testBuffer[1] = 0x10; // FLAGS_INHERITED
        testBuffer[2] = 0x24; // Size low byte (36)

    protected String userPrefix = "{user}";

    /** Prefix used to identify allow permissions */
    protected String allowPrefix = "(allow)";

    /** Prefix used to identify deny permissions */
    protected String denyPrefix = "(deny)";

    /** System helper for user/group/role search operations */
    @Resource
    protected SystemHelper systemHelper;

    /**
     * Default constructor for PermissionHelper.

 * the operation and the desired access bits are compared to the SID
 * and access mask of each ACE. If the SID matches, the allow/deny flags
 * and access mask are considered. If the ACE is a "deny"
 * ACE and <i>any</i> of the desired access bits match bits in the access
 * mask of the ACE, the whole access check fails. If the ACE is an "allow"

        assertTrue(pattern.match("/test/path"));
    }

    public void test_labelTypePattern_match_multilinePaths() {
        LabelTypePattern pattern = new LabelTypePattern("test", "/test.*\n/another.*", "/exclude.*\n/deny.*");

        // Should match first included path
        assertTrue(pattern.match("/test/path"));

        // Should match second included path
        assertTrue(pattern.match("/another/path"));