AES-GCM (Android API 수준 <= 19)
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- 해당 버전
- Tink Android, 모든 버전
- 영향을 받는 키 유형
- AES-GCM
설명
Google Play 서비스가 없는 Android KitKat (API 수준 19)에서는 AES-GCM가 제대로 작동하지 않습니다. KitKat이 updateAAD를 지원하지 않는 Bouncy Castle 1.48을 사용하기 때문입니다.
Google Play 서비스가 있는 경우 AES-GCM이 제대로 작동합니다.
Google Play 서비스에 종속되지 않고 모든 Android 버전을 지원하려면 AEAD에 CHACHA20-POLY1305, AES-EAX 또는 AES-CTR-HMAC-AEAD를 사용합니다.
달리 명시되지 않는 한 이 페이지의 콘텐츠에는 Creative Commons Attribution 4.0 라이선스에 따라 라이선스가 부여되며, 코드 샘플에는 Apache 2.0 라이선스에 따라 라이선스가 부여됩니다. 자세한 내용은 Google Developers 사이트 정책을 참조하세요. 자바는 Oracle 및/또는 Oracle 계열사의 등록 상표입니다.
최종 업데이트: 2025-07-25(UTC)
[null,null,["최종 업데이트: 2025-07-25(UTC)"],[[["\u003cp\u003eAES-GCM encryption may not function correctly on Android KitKat (API level 19) devices without Google Play Services due to limitations in Bouncy Castle 1.48.\u003c/p\u003e\n"],["\u003cp\u003eIf Google Play Services is available on the device, AES-GCM encryption should operate as expected.\u003c/p\u003e\n"],["\u003cp\u003eTo ensure compatibility across all Android versions without relying on Google Play Services, it is recommended to utilize CHACHA20-POLY1305, AES-EAX, or AES-CTR-HMAC-AEAD for authenticated encryption.\u003c/p\u003e\n"],["\u003cp\u003eThis issue impacts all versions of Tink for Android and specifically affects the AES-GCM key type.\u003c/p\u003e\n"]]],["Android KitKat without Google Play Services has a known issue where AES-GCM encryption does not function correctly due to an outdated Bouncy Castle version lacking `updateAAD` support. If Google Play Services is available, AES-GCM functions as expected. For universal Android support without Play Services dependency, utilize CHACHA20-POLY1305, AES-EAX, or AES-CTR-HMAC-AEAD instead of AES-GCM. This affects all versions of Tink Android.\n"],null,["# AES-GCM (Android API Level <= 19)\n\nAffected Versions\n: Tink Android, All Versions\n\nAffected Key Types\n: AES-GCM\n\nDescription\n-----------\n\nOn Android KitKat (API level 19) without [Google Play Services](https://developers.google.com/android/guides/overview), `AES-GCM`\ndoes not work properly. This is because KitKat uses Bouncy Castle 1.48 which\ndoes not support `updateAAD`.\n\nIf Google Play Services is present, `AES-GCM` should work well.\n\nIf you want to support all Android versions without depending on Google Play\nServices, use `CHACHA20-POLY1305`, `AES-EAX`, or `AES-CTR-HMAC-AEAD` for your\nAEAD."]]
