七牛云存储 - 七牛php SDK 如何对HLS进行加密?
使用的是PHP的SDK,请问如何对视频进行HLS加密处理?
参考如下,hlsKey
为base64_urlsafe,这个好理解,但是hlsKeyUrl
是什么呢?PHP怎么生成以RSA的OAEP加密方式的hlsKeyType
呢?
http://developer.qiniu.com/docs/v6/api/reference/fop/av/segtime.html
hls加密
hls加密是利用AES-128位对每个ts文件进行加密,播放器在取得PlayList文件的时候,会根据里面的#EXT-X-KEY标签请求获得解密的URL,再请求解密秘钥,之后会用秘钥对获取的ts文件解密。用户可以对秘钥的URL做cookie验证等方法来对用户做认证。 例子:PlayList文件 (复制链接,查看文件内容或直接用vlc播放器播放)
参数解释:
hlsKey
base64_urlsafe编码或加密过后的秘钥hlsKeyUrl
指定了秘钥放置的url,经过base64_urlsafe编码,这是生成m3u8 PlayList会使用到的hlsKeyType
指定了传送秘钥的方式
- 不指定或者指定为0,则仅仅是以base64_urlsafe编码的方式传送
- 指定为1.x(1.0, 1.1, …),以RSA的OAEP加密方式,再以编码传送秘钥,x表示秘钥的版本
- 公钥:1.0
回复内容:
使用的是PHP的SDK,请问如何对视频进行HLS加密处理?
参考如下,hlsKey
为base64_urlsafe,这个好理解,但是hlsKeyUrl
是什么呢?PHP怎么生成以RSA的OAEP加密方式的hlsKeyType
呢?
http://developer.qiniu.com/docs/v6/api/reference/fop/av/segtime.html
hls加密
hls加密是利用AES-128位对每个ts文件进行加密,播放器在取得PlayList文件的时候,会根据里面的#EXT-X-KEY标签请求获得解密的URL,再请求解密秘钥,之后会用秘钥对获取的ts文件解密。用户可以对秘钥的URL做cookie验证等方法来对用户做认证。 例子:PlayList文件 (复制链接,查看文件内容或直接用vlc播放器播放)
参数解释:
hlsKey
base64_urlsafe编码或加密过后的秘钥hlsKeyUrl
指定了秘钥放置的url,经过base64_urlsafe编码,这是生成m3u8 PlayList会使用到的hlsKeyType
指定了传送秘钥的方式
- 不指定或者指定为0,则仅仅是以base64_urlsafe编码的方式传送
- 指定为1.x(1.0, 1.1, …),以RSA的OAEP加密方式,再以编码传送秘钥,x表示秘钥的版本
- 公钥:1.0
php中调用持久化处理(音视频处理)的文档可以参考 http://developer.qiniu.com/docs/v6/sdk/php-sdk.html#av-hls
如果要进行切片的加密,只需要修改$fops
的值,修改为譬如avthumb/m3u8/segtime/10/hlsKey/<hlskey>/hlsKeyType/<hlskeytype>/hlsKeyUrl/<hlskeyurl></hlskeyurl></hlskeytype></hlskey>
-
<hlskey></hlskey>
明文为16个字节,用切片文档提供的方法,使用七牛提供的公钥和下面的命令对明文进行加密:
<code>$ echo -n [AES128KEY] | openssl rsautl -encrypt -oaep -inkey [QINIU_PUB_KEY_FILE] -pubin | openssl base64 -A | tr "+/" "-_" </code>
如果
<hlskey></hlskey>
的值为密钥明文的base64编码,那么<hlskeytype></hlskeytype>
值为0;如果<hlskey></hlskey>
的值为七牛公钥加密的密文,那么<hlskeytype></hlskeytype>
值可以写1.0<hlskeyurl></hlskeyurl>
就填写密钥明文存放的地址,一般为你的业务服务器地址,通过业务服务器相关流程控制对这个url的访问权限。

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