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feat: HsmContextSha256KeyDerivationStrategyTest elink-online-common으로 이동

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Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
curry772
2026-05-12 16:37:30 +09:00
parent 547232bb26
commit 1ab36c077b
2 changed files with 1 additions and 180 deletions
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src/test/java/com/eactive/eai/custom/security/keyderiv/HsmContextSha256KeyDerivationStrategyTest.java
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package com.eactive.eai.custom.security.keyderiv;
import static org.junit.jupiter.api.Assertions.*;
import static org.mockito.Mockito.*;
import java.nio.charset.StandardCharsets;
import java.security.MessageDigest;
import java.util.HashMap;
import java.util.Map;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.MethodOrderer;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.TestMethodOrder;
import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.context.support.GenericApplicationContext;
import com.eactive.eai.common.hsm.HsmCryptoService;
import com.eactive.eai.common.security.keyderiv.DerivedKey;
import com.eactive.eai.common.util.ApplicationContextProvider;
import com.eactive.eai.custom.security.keyderiv.strategy.HsmContextSha256KeyDerivationStrategy;
/**
* HsmContextSha256KeyDerivationStrategy 단위 테스트
*/
@TestMethodOrder(MethodOrderer.DisplayName.class)
class HsmContextSha256KeyDerivationStrategyTest {
private static final String HSM_KEY_ALIAS = "MASTER_KEY_AES";
private static final byte[] MASTER_KEY = "0123456789abcdef".getBytes(StandardCharsets.UTF_8);
private static GenericApplicationContext ctx;
private static HsmCryptoService mockHsmCryptoService;
private static HsmContextSha256KeyDerivationStrategy strategy;
private Map<String, String> params;
private Map<String, String> runtimeContext;
@BeforeAll
static void setUpClass() throws Exception {
mockHsmCryptoService = mock(HsmCryptoService.class);
SecretKey mockSecretKey = new SecretKeySpec(MASTER_KEY, "AES");
when(mockHsmCryptoService.getSecretKey(HSM_KEY_ALIAS)).thenReturn(mockSecretKey);
ctx = new GenericApplicationContext();
ctx.getBeanFactory().registerSingleton("hsmCryptoService", mockHsmCryptoService);
ctx.registerBeanDefinition("applicationContextProvider",
BeanDefinitionBuilder.genericBeanDefinition(ApplicationContextProvider.class)
.getBeanDefinition());
ctx.refresh();
strategy = new HsmContextSha256KeyDerivationStrategy();
}
@BeforeEach
void setUpParams() {
params = new HashMap<>();
params.put("hsmKeyAlias", HSM_KEY_ALIAS);
params.put("contextKey", "X-Api-Group-Seq");
runtimeContext = new HashMap<>();
runtimeContext.put("X-Api-Group-Seq", "GROUP_001");
}
// =========================================================================
// 1. deriveKey
// =========================================================================
@Test
@DisplayName("1-1. 정상 파라미터 — DerivedKey 반환, 길이 32바이트(SHA-256 고정 출력)")
void testDeriveKey_validParams_returns32ByteKey() throws Exception {
DerivedKey dk = strategy.deriveKey(params, runtimeContext);
assertNotNull(dk);
assertNotNull(dk.getEncKey());
assertNotNull(dk.getDecKey());
assertEquals(32, dk.getEncKey().length, "SHA-256 출력은 항상 32바이트여야 한다");
}
@Test
@DisplayName("1-2. SHA-256(masterKey || contextValue) 계산 결과 검증")
void testDeriveKey_sha256ResultIsCorrect() throws Exception {
DerivedKey dk = strategy.deriveKey(params, runtimeContext);
byte[] contextBytes = "GROUP_001".getBytes(StandardCharsets.UTF_8);
byte[] combined = new byte[MASTER_KEY.length + contextBytes.length];
System.arraycopy(MASTER_KEY, 0, combined, 0, MASTER_KEY.length);
System.arraycopy(contextBytes, 0, combined, MASTER_KEY.length, contextBytes.length);
byte[] expected = MessageDigest.getInstance("SHA-256").digest(combined);
assertArrayEquals(expected, dk.getEncKey(), "SHA-256 해싱 결과가 일치해야 한다");
}
@Test
@DisplayName("1-3. 대칭 알고리즘 — encKey == decKey")
void testDeriveKey_encKeyEqualsDecKey() throws Exception {
DerivedKey dk = strategy.deriveKey(params, runtimeContext);
assertArrayEquals(dk.getEncKey(), dk.getDecKey(), "대칭 방식이므로 encKey와 decKey가 동일해야 한다");
}
@Test
@DisplayName("1-4. runtimeContext 값 없음 — 빈 문자열로 처리")
void testDeriveKey_missingContextValue_emptyStringUsed() throws Exception {
runtimeContext.remove("X-Api-Group-Seq");
DerivedKey dk = strategy.deriveKey(params, runtimeContext);
byte[] expected = MessageDigest.getInstance("SHA-256").digest(MASTER_KEY);
assertArrayEquals(expected, dk.getEncKey(), "컨텍스트 값 없으면 masterKey만 해싱해야 한다");
}
@Test
@DisplayName("1-5. 다른 runtimeContext 값 — 다른 DerivedKey 생성")
void testDeriveKey_differentContextValue_differentKey() throws Exception {
DerivedKey dk1 = strategy.deriveKey(params, runtimeContext);
runtimeContext.put("X-Api-Group-Seq", "GROUP_002");
DerivedKey dk2 = strategy.deriveKey(params, runtimeContext);
assertFalse(java.util.Arrays.equals(dk1.getEncKey(), dk2.getEncKey()),
"컨텍스트 값이 다르면 도출된 키도 달라야 한다");
}
@Test
@DisplayName("1-6. 필수 파라미터 누락(hsmKeyAlias) — IllegalArgumentException")
void testDeriveKey_missingHsmKeyAlias_throwsException() {
params.remove("hsmKeyAlias");
assertThrows(IllegalArgumentException.class,
() -> strategy.deriveKey(params, runtimeContext),
"hsmKeyAlias 누락 시 IllegalArgumentException이 발생해야 한다");
}
@Test
@DisplayName("1-7. 필수 파라미터 누락(contextKey) — IllegalArgumentException")
void testDeriveKey_missingContextKey_throwsException() {
params.remove("contextKey");
assertThrows(IllegalArgumentException.class,
() -> strategy.deriveKey(params, runtimeContext),
"contextKey 누락 시 IllegalArgumentException이 발생해야 한다");
}
// =========================================================================
// 2. buildCacheKey
// =========================================================================
@Test
@DisplayName("2-1. buildCacheKey — cryptoName:contextValue 형식")
void testBuildCacheKey_format() {
String cacheKey = strategy.buildCacheKey("CRYPTO_A", params, runtimeContext);
assertEquals("CRYPTO_A:GROUP_001", cacheKey);
}
@Test
@DisplayName("2-2. buildCacheKey — contextKey 값 없으면 빈 문자열")
void testBuildCacheKey_missingContextValue_emptyString() {
runtimeContext.remove("X-Api-Group-Seq");
String cacheKey = strategy.buildCacheKey("CRYPTO_A", params, runtimeContext);
assertEquals("CRYPTO_A:", cacheKey);
}
@Test
@DisplayName("2-3. buildCacheKey — 다른 cryptoName은 다른 캐시 키")
void testBuildCacheKey_differentCryptoName_differentKey() {
String key1 = strategy.buildCacheKey("CRYPTO_A", params, runtimeContext);
String key2 = strategy.buildCacheKey("CRYPTO_B", params, runtimeContext);
assertNotEquals(key1, key2);
}
}