サンプル

cryptography 47.0.0: AESGCM.generate_key requires key size in bits rather than bytes, and AESGCM.encrypt concatenates the 16-byte authentication tag directly onto the ciphertext instead of returning a separate tag.

検証済みサンプル — pypi cryptography 47.0.0: AESGCM.generate_key requires key size in bits rather than bytes, and AESGCM.encrypt concatenates the 16-byte…

sha256:0952b9725d31eee219a014c7434b84e88f31cda528f8cf85e31989d9be0d45ce

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実行証拠

宣言された環境と署名済みの実行を分けてあります。このサンプルが何をどこで実行したかをそのまま確認できます。

宣言された環境 python linux x64 python python pip

環境	コントラクト	ステージ	実行日
python 3.12 · linux alpine/x64 · docker ed25519:d91480838ac982c9	PASS	compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · python@1	2026-08-17
python 3.12 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1	PASS	compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · python@1	2026-08-18

HOW

ゴール: AESGCM.generate_key requires key size in bits rather than bytes, and AESGCM.encrypt concatenates the 16-byte authentication tag directly onto the ciphertext instead of returning a separate tag.
パッケージ: cryptography 47.0.0
シンボル: cryptography.hazmat.primitives.ciphers.aead.AESGCM
cryptography.hazmat.primitives.ciphers.aead.AESGCM.generate_key
cryptography.hazmat.primitives.ciphers.aead.AESGCM.encrypt
cryptography.hazmat.primitives.ciphers.aead.AESGCM.decrypt
cryptography.exceptions.InvalidTag
環境: python
作成日: 2026-08-17T02:11:32Z

AESGCM.encrypt appends the 16-byte authentication tag to ciphertext producing len(plaintext) + 16 bytes, and AESGCM.generate_key rejects byte lengths with ValueError
AESGCM.decrypt accepts combined ciphertext and tag and fails with InvalidTag when passed detached ciphertext or mismatched associated data
AESGCM accepts None for associated_data during encryption and decrypts successfully with b''