Detailed explanation of using HMAC-SHA1 signature method_PHP tutorial

Encryption algorithm:
Use HMAC-SHA1 signature method

Copy code The code is as follows:

/**
* @brief Use HMAC-SHA1 algorithm to generate oauth_signature signature value
*
* @param $key key
* @param $str source string
*
* @return signature Value
*/
function getSignature($str, $key) {
$signature = "";
if (function_exists('hash_hmac')) {
$signature = base64_encode (hash_hmac("sha1", $str, $key, true));
                                                                                                                            ) > $blocksize) {
                      $key = pack('H*', $hashfunc($key)); );
$ipad = str_repeat(chr(0x36), $blocksize);
$opad = str_repeat(chr(0x5c), $blocksize);
$hmac = pack(
          'H* ', $hashfunc(
($key ^ $opad) . pack(
'H*', $hashfunc(
($key ^ $ipad) . $str
                                         
                                                                              🎜>





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Encryption algorithm: Use HMAC-SHA1 signature method to copy the code The code is as follows: /** * @brief Use HMAC-SHA1 Algorithm generates oauth_signature signature value* * @param $key key* @param $str source string...