te')); return $arr; } /* 遍历用户所有主题 * @param $uid 用户ID * @param int $page 页数 * @param int $pagesize 每页记录条数 * @param bool $desc 排序方式 TRUE降序 FALSE升序 * @param string $key 返回的数组用那一列的值作为 key * @param array $col 查询哪些列 */ function thread_tid_find_by_uid($uid, $page = 1, $pagesize = 1000, $desc = TRUE, $key = 'tid', $col = array()) { if (empty($uid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('uid' => $uid), array('tid' => $orderby), $page, $pagesize, $key, $col); return $arr; } // 遍历栏目下tid 支持数组 $fid = array(1,2,3) function thread_tid_find_by_fid($fid, $page = 1, $pagesize = 1000, $desc = TRUE) { if (empty($fid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('fid' => $fid), array('tid' => $orderby), $page, $pagesize, 'tid', array('tid', 'verify_date')); return $arr; } function thread_tid_delete($tid) { if (empty($tid)) return FALSE; $r = thread_tid__delete(array('tid' => $tid)); return $r; } function thread_tid_count() { $n = thread_tid__count(); return $n; } // 统计用户主题数 大数量下严谨使用非主键统计 function thread_uid_count($uid) { $n = thread_tid__count(array('uid' => $uid)); return $n; } // 统计栏目主题数 大数量下严谨使用非主键统计 function thread_fid_count($fid) { $n = thread_tid__count(array('fid' => $fid)); return $n; } ?>google cloud platform - Widevine encryptionKeys expecting 128-bit hexadecimal string of length 32 - Stack Overflow

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    google cloud platform - Widevine encryptionKeys expecting 128-bit hexadecimal string of length 32 - Stack Overflow

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    Widevine only provided a 64 characters key and 32 character iv. If that is the case, what is the key to be put in encryption[0].key?

    Full error message: Secret config field config.encryption[0].key is invalid, expected a valid 128-bit hexadecimal string of length 32.

    Google cloud video transcoder doc

    Detail of each field in encryptionKeys

    {
  "encryptionKeys": [
    {
      // Key for Widevine configurations.
      "keyId": "44ec248b048c43a6a6ee58a752c6f9f8",
      "key": "f1967daca83e81f38d80aa741e7b32c2",
      "keyUri": "skd://44ec248b048c43a6a6ee58a752c6f9f8",
      "matchers": [
        {
          "muxStreams": [
            "fmp4_widevine_cenc_video",
            "fmp4_widevine_cenc_audio",
            "fmp4_widevine_cbcs_video",
            "fmp4_widevine_cbcs_audio"
          ]
        }
      ]
    },
]

    Widevine only provided a 64 characters key and 32 character iv. If that is the case, what is the key to be put in encryption[0].key?

    Full error message: Secret config field config.encryption[0].key is invalid, expected a valid 128-bit hexadecimal string of length 32.

    Google cloud video transcoder doc

    Detail of each field in encryptionKeys

    {
  "encryptionKeys": [
    {
      // Key for Widevine configurations.
      "keyId": "44ec248b048c43a6a6ee58a752c6f9f8",
      "key": "f1967daca83e81f38d80aa741e7b32c2",
      "keyUri": "skd://44ec248b048c43a6a6ee58a752c6f9f8",
      "matchers": [
        {
          "muxStreams": [
            "fmp4_widevine_cenc_video",
            "fmp4_widevine_cenc_audio",
            "fmp4_widevine_cbcs_video",
            "fmp4_widevine_cbcs_audio"
          ]
        }
      ]
    },
]
    • google-cloud-platform
    • widevine
    Share Improve this question edited 2 days ago HNG asked Feb 18 at 4:21 HNGHNG 3331 gold badge3 silver badges19 bronze badges 1
    • Hi @HNG, I have posted an answer, if you find it helpful, please do consider upvoting and accepting it as per stackoverflow guidelines helping more Stack contributors with their research. If not, let me know so that I can improve my answer. – Sourav Dutta Commented 2 days ago
    Add a comment  | 

    1 Answer 1

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    The error you are getting because Google Cloud Video Transcoder only accepts 128-bit keys for the encryption[0].key field , However Widevine provided both 128-bit (16-byte) and 256-bit (32-byte) encryption keys .

    • So,if somehow Widevine send 256 bits key , you have to convert it to 128 bit. For that you can use Python snippet to truncate a 256-bit key to 128-bit , or you can contact widevine support so that it only sends 128 bit key encryption .

    There is an extra comma in your JSON Structure , at the end of 2nd bracket { (last 2nd line) - which can make it invalid syntax .

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