{"id":1985,"date":"2023-06-16T09:01:21","date_gmt":"2023-06-16T00:01:21","guid":{"rendered":"https:\/\/m365jp.xyz\/?p=1985"},"modified":"2023-06-16T09:06:57","modified_gmt":"2023-06-16T00:06:57","slug":"mc590144-microsoft-purview-information-protection-moving-to-aes256-cbc-mode-for-encryption-of-email-and-office-files","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2023-06-16-mc590144-microsoft-purview-information-protection-moving-to-aes256-cbc-mode-for-encryption-of-email-and-office-files","title":{"rendered":"MC590144 | Microsoft Purview Information Protection moving to AES256-CBC mode for encryption of email and Office files."},"content":{"rendered":"
\n
\n
\n\n\n\n
MC590144 | Microsoft Purview Information Protection moving to AES256-CBC mode for encryption of email and Office files.<\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n\n\n\n\n\n\n\n\n
Classification<\/th>\nstayInformed<\/td>\n<\/tr>\n
Last Updated<\/th>\n06\/15\/2023 23:12:49<\/td>\n<\/tr>\n
Start Time<\/th>\n06\/15\/2023 23:12:28<\/td>\n<\/tr>\n
End Time<\/th>\n10\/31\/2023 07:00:00<\/td>\n<\/tr>\n
Message Content<\/th>\n\n

Microsoft Purview Information Protection will begin to use Advanced Encryption Standard (AES) with 256-bit key length in Cipher Block Chaining mode (AES256-CBC) by default for encryption of Office documents and emails. If your organization is part of any of the four groups listed in this post, you must take action to update or opt out of this change. <\/p>\n

You can read about this on our Tech Community blog post<\/a> and learn more in our documentation<\/a>.<\/p>\n

This message is associated with Microsoft 365 Roadmap ID 117576<\/a><\/p>\n

[When this will happen:]<\/p>\n

We will begin rolling out late August 2023 and expect to complete by late September 2023. <\/p>\n

[How this will affect your organization:]<\/p>\n

Today, Microsoft Purview Information Protection uses AES128 in electronic codebook mode (AES128-ECB) for protecting Office files and emails. Starting in late August 2023, we will begin to roll out changes to the default, moving to AES256-CBC for files and emails. <\/p>\n

This change to the default encryption algorithm will roll out to: <\/p>\n

Machine Translation<\/th>\n\n

Microsoft Purview \u60c5\u5831\u4fdd\u8b77\u306f\u3001Office \u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3068\u96fb\u5b50\u30e1\u30fc\u30eb\u306e\u6697\u53f7\u5316\u306b\u65e2\u5b9a\u3067\u3001\u6697\u53f7\u30d6\u30ed\u30c3\u30af\u30c1\u30a7\u30fc\u30f3 \u30e2\u30fc\u30c9 (AES256-CBC) \u3067 256 \u30d3\u30c3\u30c8\u306e\u30ad\u30fc\u9577\u3092\u6301\u3064\u9ad8\u5ea6\u6697\u53f7\u5316\u6a19\u6e96 (AES) \u306e\u4f7f\u7528\u3092\u958b\u59cb\u3057\u307e\u3059\u3002\u7d44\u7e54\u304c\u3053\u306e\u6295\u7a3f\u306b\u8a18\u8f09\u3055\u308c\u3066\u3044\u308b4\u3064\u306e\u30b0\u30eb\u30fc\u30d7\u306e\u3044\u305a\u308c\u304b\u306b\u5c5e\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u3053\u306e\u5909\u66f4\u3092\u66f4\u65b0\u307e\u305f\u306f\u30aa\u30d7\u30c8\u30a2\u30a6\u30c8\u3059\u308b\u305f\u3081\u306e\u30a2\u30af\u30b7\u30e7\u30f3\u3092\u5b9f\u884c\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002 <\/p>\n

\u3053\u308c\u306b\u3064\u3044\u3066\u306f\u3001\u6280\u8853\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u306e\u30d6\u30ed\u30b0\u6295\u7a3f<\/a>\u3092\u8aad\u307f\u3001\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3067\u8a73\u7d30\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/a><\/p>\n

\u3053\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u306f\u3001Microsoft 365 \u30ed\u30fc\u30c9\u30de\u30c3\u30d7 ID \u306b\u95a2\u9023\u4ed8\u3051\u3089\u308c\u3066\u3044\u307e\u3059117576<\/a><\/p>\n

[\u3053\u308c\u304c\u8d77\u3053\u308b\u3068\u304d:]<\/p>\n

2023 \u5e74 8 \u6708\u4e0b\u65ec\u306b\u30ed\u30fc\u30eb\u30a2\u30a6\u30c8\u3092\u958b\u59cb\u3057\u30012023 \u5e74 9 \u6708\u4e0b\u65ec\u307e\u3067\u306b\u5b8c\u4e86\u3059\u308b\u4e88\u5b9a\u3067\u3059\u3002 <\/p>\n

[\u3053\u308c\u304c\u7d44\u7e54\u306b\u4e0e\u3048\u308b\u5f71\u97ff:]<\/p>\n

\u73fe\u5728\u3001Microsoft Purview Information Protection \u306f\u3001Office \u30d5\u30a1\u30a4\u30eb\u3068\u96fb\u5b50\u30e1\u30fc\u30eb\u3092\u4fdd\u8b77\u3059\u308b\u305f\u3081\u306b\u3001\u96fb\u5b50\u30b3\u30fc\u30c9\u30d6\u30c3\u30af \u30e2\u30fc\u30c9 (AES128-ECB) \u306e AES128 \u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u30022023 \u5e74 8 \u6708\u4e0b\u65ec\u304b\u3089\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u5909\u66f4\u306e\u30ed\u30fc\u30eb\u30a2\u30a6\u30c8\u3092\u958b\u59cb\u3057\u3001\u30d5\u30a1\u30a4\u30eb\u3068\u30e1\u30fc\u30eb\u3092 AES256-CBC \u306b\u79fb\u884c\u3057\u307e\u3059\u3002 <\/p>\n

\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u6697\u53f7\u5316\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306b\u5bfe\u3059\u308b\u3053\u306e\u5909\u66f4\u306f\u3001\u6b21\u306e\u3088\u3046\u306b\u5c55\u958b\u3055\u308c\u307e\u3059\u3002<\/p>\n