Device fingerprinting lets you log the attributes of the shopper device and\u00a0analyze them during repeat visits of the same shopper.<\/p>\n
Using the device fingerprint is optional.<\/p>\n<\/div>\n
The only risk rule that can take the device fingerprint into account as one of the variables is the velocity<\/a> rule Shopper initiated a transaction more than X times within a time period<\/strong>.<\/p>\n If you decide to use the device fingerprint in this risk check, we recommend that you use it in combination with the other variables.<\/p>\n If you just started integrating with Adyen, or if you are already using one of our online payments<\/a> integrations, we recommend that you use one or more of the other variables (shopper email address, shopper IP or persistent cookie) for the risk check Shopper initiated a transaction more than X times within a time period<\/strong>.<\/p>\n Adyen provides the options listed below to submit the device fingerprint for classic integration types.<\/p>\n For\u00a0HTML-based Client-Side Encryption<\/a>\u00a0and\u00a0Hosted Payment Pages<\/a>, the device fingerprint is calculated and submitted automatically.<\/p>\n<\/li>\n For\u00a0JavaScript-only Client-Side Encryption<\/a>\u00a0and\u00a0Classic API<\/a>, you need to manually calculate<\/a> and submit<\/a> the fingerprint.<\/p>\n<\/li>\n<\/ul>\n These instructions apply to JavaScript-only Client-Side Encryption<\/a>\u00a0and\u00a0Classic API<\/a> integrations.<\/p>\n<\/div>\n First, calculate a fingerprint on a client side and submit it to your server, along with other payment details.<\/p>\n Calculating the device fingerprint might take some time varying on the shopper's computer speed and Internet connection.\u00a0Run fingerprinting on page load to ensure that the fingerprint is successfully calculated while a shopper fills out payment details.<\/p>\n<\/div>\n To get the device fingerprint:<\/p>\n Calculate a fingerprint for the hidden field by calling the If you want to calculate the device fingerprint dynamically, for example after the DOM is loaded, use the Below is an example form that calculates the device fingerprint using the These instructions apply to JavaScript-only Client-Side Encryption<\/a>\u00a0and\u00a0Classic API<\/a> integrations.<\/p>\n<\/div>\n After the device fingerprint is calculated and submitted to your server, include this fingerprint into the payment request in the 1342613143.json<\/p>"}}
Integration types<\/h2>\n
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Get the fingerprint<\/h3>\n
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id<\/code>\u00a0to your page.<\/li>\ndfDo<\/code> function with the field's\u00a0id<\/code>\u00a0as a parameter.<\/p>\ndfSet<\/code> function instead of dfDo<\/code>.<\/p>\n<\/div><\/div>\n<\/li>\n<\/ol>\nbar<\/code> hidden field.<\/p>\n <html>\n <head>\n <title>Your Website<\/title>\n <\/head>\n <body><p>Your Checkout page.<\/p>\n <script type=\"text\/javascript\" src=\"https:\/\/live.adyen.com\/hpp\/js\/df.js?v=20171130\"><\/script>\n <form action=\"http:\/\/www.yourdomain.com\/checkout\" method=\"POST\">\n <!--\n Your other payment related fields\n -->\n <input type=\"hidden\" name=\"foo\" id=\"bar\" \/>\n <input type=\"submit\" value=\"Submit\" \/>\n <\/form>\n <script>\n \/\/<![CDATA[\n dfDo(\"bar\");\n \/\/]]>\n <\/script>\n <\/body>\n <\/html><\/code><\/pre>\nSubmit the fingerprint to Adyen<\/h3>\n
deviceFingerprint<\/code> field value. The\u00a0plataforma de pagamentos da Adyen\u00a0then uses this fingerprint for fraud checks on the payment request.<\/p>\n