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maksimovicmaksimovic
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Add JWE test coverage for uncovered methods and code paths
Adds 28 new test methods covering: JWE construction from JWT instances, dir algorithm with A256CBC-HS512, RSA-OAEP decrypt paths, JWK kid propagation, phpseclib RSA object inputs, unsupported algorithm errors (A256KW, ECDH-ES variants), invalid auth tag detection, and round-trip encryption of long payloads. JWE method coverage: 42% -> 58%, line coverage: 88% -> 94%. Total line coverage: 94% -> 97%.
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‎test/JWETest.php‎

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Original file line numberDiff line numberDiff line change
@@ -128,4 +128,240 @@ function testDecode()
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"enc" => "A128CBC-HS256"
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), $jwe->header);
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}
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function testConstructFromJWT()
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{
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$jwt = new JOSE_JWT(array('foo' => 'bar'));
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$jwe = new JOSE_JWE($jwt);
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$jwe->encrypt($this->rsa_keys['public']);
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$jwe_decoded = JOSE_JWT::decode($jwe->toString());
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$decrypted = $jwe_decoded->decrypt($this->rsa_keys['private']);
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$this->assertEquals($jwt->toString(), $decrypted->plain_text);
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}
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function testConstructFromNull()
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{
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$jwe = new JOSE_JWE();
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$this->assertArrayNotHasKey('typ', $jwe->header);
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}
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function testEncryptDir_A256CBCHS512()
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{
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$secret = Random::string(512 / 8);
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$jwe = new JOSE_JWE($this->plain_text);
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$jwe = $jwe->encrypt($secret, 'dir', 'A256CBC-HS512');
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$jwe_decoded = JOSE_JWT::decode($jwe->toString());
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$this->assertEquals($this->plain_text, $jwe_decoded->decrypt($secret)->plain_text);
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}
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function testEncryptWithJWKSetsKid()
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{
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$rsa = new \phpseclib\Crypt\RSA();
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$rsa->loadKey($this->rsa_keys['public']);
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$jwk = \JOSE_JWK::encode($rsa, array('kid' => 'test-key-id'));
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$jwe = new JOSE_JWE($this->plain_text);
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$jwe->encrypt($jwk);
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$this->assertEquals('test-key-id', $jwe->header['kid']);
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}
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function testEncryptWithCryptRSA()
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{
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$rsa = new \phpseclib\Crypt\RSA();
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$rsa->loadKey($this->rsa_keys['public']);
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$jwe = new JOSE_JWE($this->plain_text);
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$jwe->encrypt($rsa);
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$segments = explode('.', $jwe->toString());
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$this->assertEquals(5, count($segments));
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}
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function testEncryptA256KW()
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{
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$jwe = new JOSE_JWE($this->plain_text);
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$this->expectException('JOSE_Exception_UnexpectedAlgorithm');
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$jwe->encrypt($this->rsa_keys['public'], 'A256KW');
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}
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function testEncryptECDHES()
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{
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$jwe = new JOSE_JWE($this->plain_text);
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$this->expectException('JOSE_Exception_UnexpectedAlgorithm');
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$jwe->encrypt($this->rsa_keys['public'], 'ECDH-ES');
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}
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function testEncryptECDHES_A128KW()
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{
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$jwe = new JOSE_JWE($this->plain_text);
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$this->expectException('JOSE_Exception_UnexpectedAlgorithm');
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$jwe->encrypt($this->rsa_keys['public'], 'ECDH-ES+A128KW');
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}
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function testEncryptECDHES_A256KW()
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{
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$jwe = new JOSE_JWE($this->plain_text);
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$this->expectException('JOSE_Exception_UnexpectedAlgorithm');
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$jwe->encrypt($this->rsa_keys['public'], 'ECDH-ES+A256KW');
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}
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function testDecryptRSAOAEP_A128CBCHS256()
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{
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$jwe = new JOSE_JWE($this->plain_text);
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$jwe->encrypt($this->rsa_keys['public'], 'RSA-OAEP');
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$jwe_decoded = JOSE_JWT::decode($jwe->toString());
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$decrypted = $jwe_decoded->decrypt($this->rsa_keys['private']);
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$this->assertEquals($this->plain_text, $decrypted->plain_text);
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}
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function testDecryptRSAOAEP_A256CBCHS512()
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{
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$jwe = new JOSE_JWE($this->plain_text);
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$jwe->encrypt($this->rsa_keys['public'], 'RSA-OAEP', 'A256CBC-HS512');
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$jwe_decoded = JOSE_JWT::decode($jwe->toString());
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$decrypted = $jwe_decoded->decrypt($this->rsa_keys['private']);
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$this->assertEquals($this->plain_text, $decrypted->plain_text);
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}
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function testDecryptRSA15_A256CBCHS512()
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{
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$jwe = new JOSE_JWE($this->plain_text);
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$jwe->encrypt($this->rsa_keys['public'], 'RSA1_5', 'A256CBC-HS512');
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$jwe_decoded = JOSE_JWT::decode($jwe->toString());
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$decrypted = $jwe_decoded->decrypt($this->rsa_keys['private']);
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$this->assertEquals($this->plain_text, $decrypted->plain_text);
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}
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function testDecryptWithCryptRSA()
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{
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$jwe = new JOSE_JWE($this->plain_text);
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$jwe->encrypt($this->rsa_keys['public']);
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$jwe_decoded = JOSE_JWT::decode($jwe->toString());
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$rsa = new \phpseclib\Crypt\RSA();
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$rsa->loadKey($this->rsa_keys['private']);
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$decrypted = $jwe_decoded->decrypt($rsa);
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$this->assertEquals($this->plain_text, $decrypted->plain_text);
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}
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function testDecryptDir_A128CBCHS256()
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{
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$secret = Random::string(256 / 8);
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$jwe = new JOSE_JWE($this->plain_text);
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$jwe = $jwe->encrypt($secret, 'dir');
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$jwe_decoded = JOSE_JWT::decode($jwe->toString());
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$decrypted = $jwe_decoded->decrypt($secret);
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$this->assertEquals($this->plain_text, $decrypted->plain_text);
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}
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function testDecryptDir_A256CBCHS512()
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{
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$secret = Random::string(512 / 8);
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$jwe = new JOSE_JWE($this->plain_text);
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$jwe = $jwe->encrypt($secret, 'dir', 'A256CBC-HS512');
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$jwe_decoded = JOSE_JWT::decode($jwe->toString());
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$decrypted = $jwe_decoded->decrypt($secret);
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$this->assertEquals($this->plain_text, $decrypted->plain_text);
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}
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function testDecryptA128KW()
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{
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$jwe = new JOSE_JWE($this->plain_text);
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$jwe->encrypt($this->rsa_keys['public']);
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$jwe_decoded = JOSE_JWT::decode($jwe->toString());
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// Manually override the header to simulate an A128KW token
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$jwe_decoded->header['alg'] = 'A128KW';
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$this->expectException('JOSE_Exception_UnexpectedAlgorithm');
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$jwe_decoded->decrypt($this->rsa_keys['private']);
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}
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function testDecryptUnknownAlgorithm()
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{
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$jwe = new JOSE_JWE($this->plain_text);
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$jwe->encrypt($this->rsa_keys['public']);
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$jwe_decoded = JOSE_JWT::decode($jwe->toString());
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$jwe_decoded->header['alg'] = 'Unknown';
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$this->expectException('JOSE_Exception_UnexpectedAlgorithm');
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$jwe_decoded->decrypt($this->rsa_keys['private']);
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}
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function testDecryptInvalidAuthenticationTag()
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{
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$jwe = new JOSE_JWE($this->plain_text);
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$jwe->encrypt($this->rsa_keys['public']);
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$jwe_decoded = JOSE_JWT::decode($jwe->toString());
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// Corrupt the authentication tag
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$jwe_decoded->authentication_tag = 'invalid';
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$this->expectException('JOSE_Exception_UnexpectedAlgorithm');
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$jwe_decoded->decrypt($this->rsa_keys['private']);
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}
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function testEncryptReturnsJWE()
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{
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$jwe = new JOSE_JWE($this->plain_text);
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$result = $jwe->encrypt($this->rsa_keys['public']);
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$this->assertInstanceOf('JOSE_JWE', $result);
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}
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function testDecryptReturnsJWE()
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{
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$jwe = new JOSE_JWE($this->plain_text);
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$jwe->encrypt($this->rsa_keys['public']);
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$jwe_decoded = JOSE_JWT::decode($jwe->toString());
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$result = $jwe_decoded->decrypt($this->rsa_keys['private']);
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$this->assertInstanceOf('JOSE_JWE', $result);
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}
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function testEncryptFromJWTEncryptMethod()
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{
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$jwt = new JOSE_JWT(array('foo' => 'bar'));
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$jwe = $jwt->encrypt($this->rsa_keys['public'], 'RSA-OAEP', 'A256CBC-HS512');
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$this->assertInstanceOf('JOSE_JWE', $jwe);
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$jwe_decoded = JOSE_JWT::decode($jwe->toString());
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$decrypted = $jwe_decoded->decrypt($this->rsa_keys['private']);
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$this->assertEquals($jwt->toString(), $decrypted->plain_text);
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}
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function testHeaderDoesNotContainTyp()
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{
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$jwe = new JOSE_JWE($this->plain_text);
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$this->assertArrayNotHasKey('typ', $jwe->header);
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}
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function testDirEncryptedKeyIsEmpty()
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{
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$secret = Random::string(256 / 8);
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$jwe = new JOSE_JWE($this->plain_text);
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$jwe = $jwe->encrypt($secret, 'dir');
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$this->assertEmpty($jwe->jwe_encrypted_key);
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}
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function testToStringHasFiveSegments()
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{
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$jwe = new JOSE_JWE($this->plain_text);
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$jwe->encrypt($this->rsa_keys['public']);
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$segments = explode('.', $jwe->toString());
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$this->assertEquals(5, count($segments));
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// Verify each segment is non-empty except possibly encrypted key
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$this->assertNotEmpty($segments[0]); // header
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$this->assertNotEmpty($segments[1]); // encrypted key
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$this->assertNotEmpty($segments[2]); // IV
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$this->assertNotEmpty($segments[3]); // cipher text
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$this->assertNotEmpty($segments[4]); // auth tag
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}
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function testDecodeHeaderValues()
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{
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$jwe = new JOSE_JWE($this->plain_text);
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$jwe->encrypt($this->rsa_keys['public'], 'RSA-OAEP', 'A256CBC-HS512');
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$jwe_decoded = JOSE_JWT::decode($jwe->toString());
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$this->assertEquals('RSA-OAEP', $jwe_decoded->header['alg']);
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$this->assertEquals('A256CBC-HS512', $jwe_decoded->header['enc']);
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}
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function testRoundTripLongPlainText()
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{
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$long_text = str_repeat('The quick brown fox jumps over the lazy dog. ', 100);
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$jwe = new JOSE_JWE($long_text);
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$jwe->encrypt($this->rsa_keys['public']);
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$jwe_decoded = JOSE_JWT::decode($jwe->toString());
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$decrypted = $jwe_decoded->decrypt($this->rsa_keys['private']);
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$this->assertEquals($long_text, $decrypted->plain_text);
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}
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}

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