我曾经在Ruby中生成数字签名,如下所示:
def generate_signature
data = "Databeingpassed"
secret_key = "Somesecretkey"
digest = OpenSSL::Digest::Digest.new('sha256')
Base64.encode64(OpenSSL::HMAC.digest(digest, secret_key, data)).strip
end
Output: 2XBK7UXA9oDsfJj1TBE2maptpB6i1MJ4uadY1AXlQOQ=
如何使用 php 实现相同的目的,我在 php 中使用以下代码,但输出不同
function generate_signature() {
$data = "Databeingpassed"
$secret_key = "Somesecretkey"
$message = hash('sha256', $secret_key, $data);
return base64_encode($message);
}
Output: hgy/KMG3zTSgjUrzA/3nNvN+vApna6A7JqtZwx+r9Ng=
有什么想法吗?
我已经找到了一种方法,以防有人需要:
function generate_signature() {
$data = "Databeingpassed"
$secret_key = "Somesecretkey"
return base64_encode(hash_hmac('sha256', $data, $secret_key, true));
}
输出:
2XBK7UXA9oDsfJj1TBE2maptpB6i1MJ4uadY1AXlQOQ=
我有解决你的问题的方法
$("#btnSaveSign").click(function(e){
html2canvas([document.getElementById('sign-pad')], {
onrendered: function (canvas) {
var canvas_img_data = canvas.toDataURL('image/png');
var img_data = canvas_img_data.replace(/^data:image'/(png|jpg);base64,/, "");
//ajax call to save image inside folder
$.ajax({
url: 'save_sign.php',
data: { img_data:img_data },
type: 'post',
dataType: 'json',
success: function (response) {
window.location.reload();
}
});
}
});
});
j查询数字签名