PHP code for authentication of three types of authentication: CDNa, B, and c

PHP code for authentication of three types of authentication: CDNa, B, and c A authentication method code

// Http: // DomainName/Filename? Auth_key = timestamp-rand-uid-md5hash

// Sstring = "URI-Timestamp-rand-uid-PrivateKey" (URI is the relative address of the user's request object, such as/Filename)

// HashValue = md5sum (sstring)

Function PrivateKeyA (){

$ Time = strtotime ("+ 8 hours ");

$ Key = "youkey ";

$ Domain = "http://www.a.com ";

$ Filename = "/mulu/1.jpg ";

// $ Sstring = "URI-Timestamp-rand-uid-PrivateKey"

$ Sstring = $ filename. "-". $ time. "-0-0-". $ key;

$ Md5 = md5 ($ sstring );

$ Auth_key = "auth_key =". $ time. "-0-0-". $ md5;

$ Url = $ domain. $ filename ."? ". $ Auth_key;

Echo $ url. "\ n ";

}

B authentication code

// Http: // DomainName/timestamp/md5hash/FileName

// Timestamp: the time when the user accesses the client source server, which is part of the URL and a factor used to calculate the md5hash. the format is YYYYMMDDHHMM and the validity period is 1800 s.

// Md5hash: uses timestamp, FileName, and preset PrivateKey as the MD5 string, that is, md5 (PrivateKey + timestamp + FileName)

Function PrivateKeyB (){

$ Time = date ("YmdHi ");

$ Key = "youkey ";

$ Domain = "http://www.a.com /";

$ Filename = "/mulu/1.jpg ";

// $ Sstring = "PrivateKeytimestampFileName"

$ Sstring = $ key. $ time. $ filename;

$ Md5 = md5 ($ sstring );

$ Url = $ domain. $ time. "/". $ md5. $ filename;

Echo $ url. "\ n ";

}

C authentication code:

// Http: // DomainName/{/}/FileName

// Md5hash = md5sum ()

// Time: The time when the user accesses the source server. the UNIX time is represented by a hexadecimal number.

Function PrivateKeyC (){

$ Time2 = dechex (time ());

$ Key = "youkey ";

$ Domain = "http://ww.a.com /";

$ Filename = "/mulu/1.jpg ";

// $ Sstring = PrivateKeyFileNametime

$ Sstring = $ key. $ filename. $ time2;

$ Md5 = md5 ($ sstring );

$ Url = $ domain. $ md5. "/". $ time2. $ filename;

Echo $ url. "\ n ";

}

403 is returned for all authentication errors.

Md5 calculation error:

X-Tengine-Error: denied by req auth: invalid md5hash = de7bfdc915ced05e171_a149bd760be

Time error:

X-Tengine-Error: denied by req auth: expired timestamp = 1439469547