{"id":301,"date":"2017-06-20T06:59:30","date_gmt":"2017-06-20T06:59:30","guid":{"rendered":"https:\/\/sandbox.interswitchng.com\/docbase\/docs\/webpay\/transaction-confirmation-leg\/hash-computation\/"},"modified":"2017-09-08T13:49:38","modified_gmt":"2017-09-08T13:49:38","slug":"hash-computation","status":"publish","type":"docs","link":"https:\/\/sandbox.interswitchng.com\/docbase\/docs\/webpay\/transaction-confirmation-leg\/hash-computation\/","title":{"rendered":"Hash Computation"},"content":{"rendered":"<h4><strong>Hash Computation<\/strong><\/h4>\n<p>After a concluded PAY transaction and the above parameters were sent to your servers as response. Using the above parameters:-<\/p>\n<ul>\n<li><em>productid<\/em> (product id as returned by WebPAY)<\/li>\n<li><em>txn_ref<\/em> (transaction reference as returned by WebPAY)<\/li>\n<li><em>MAC Key<\/em> (MAC Key used for WebPAY)<\/li>\n<\/ul>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone wp-image-304 size-full\" src=\"http:\/\/sandbox.interswitchng.com\/docbase\/wp-content\/uploads\/2017\/06\/requery_hash.png\" alt=\"\" width=\"649\" height=\"68\" srcset=\"https:\/\/sandbox.interswitchng.com\/docbase\/wp-content\/uploads\/2017\/06\/requery_hash.png 649w, https:\/\/sandbox.interswitchng.com\/docbase\/wp-content\/uploads\/2017\/06\/requery_hash-300x31.png 300w\" sizes=\"(max-width: 649px) 100vw, 649px\" \/><\/p>\n<p>where \u2018+\u2019 represents string concatenation of values (i.e., \u201ca\u201d + \u201cb\u201d = \u201cab\u201d).<\/p>\n<p>&nbsp;<\/p>\n<h4>Hash Computation Example<\/h4>\n<p>For example for a transaction with the following field values &#8211;<\/p>\n<p>1) txn_ref \u2013 <span style=\"color: #800000;\">MYC_060616_31<\/span><\/p>\n<p>2) product_id &#8211; <span style=\"color: #ff0000;\">6205<\/span><\/p>\n<p>3) MacKey &#8211;<\/p>\n<p><span style=\"color: #0000ff;\">D3D1D05AFE42AD50818167EAC73C109168A0F108F32645C8B59E897FA930DA44F9230910DAC9E20641823799A107A02068F7BC0F4CC41D2952E249552255710F<\/span><\/p>\n<p>&nbsp;<\/p>\n<p>String to be hashed =<\/p>\n<p><span style=\"color: #ff0000;\">6205<\/span><span style=\"color: #800000;\">MYC_060616_31<\/span><span style=\"color: #0000ff;\">D3D1D05AFE42AD50818167EAC73C109168A0F108F32645C8B59E897FA930DA44F9230910DAC9E20641823799A107A02068F7BC0F4CC41D2952E249552255710F<\/span><\/p>\n<p>&nbsp;<\/p>\n<p>After computing value\u2026<\/p>\n<p>&nbsp;<\/p>\n<p>Hash =<\/p>\n<p><span style=\"color: #993300;\"><em>F3D8F93F03329825F4D46082CF100D4BF35D228B30B6AE951D2103832C2A24EA1B84E336B048E435DDEF0A7C1E75D6E680024A14E220ACA2051DB5EAD105E68A<\/em><\/span><\/p>\n<p>A good resource where you can check the hash you;re generating can be found at the link below-<\/p>\n<p><a href=\"http:\/\/www.convertstring.com\/Hash\/SHA512\">SHA 512 Generator<\/a><\/p>\n<p><a href=\"http:\/\/sandbox.interswitchng.com\/docbase\/wp-content\/uploads\/2017\/06\/hash1.png\"><img decoding=\"async\" loading=\"lazy\" class=\"alignnone wp-image-1829 size-full\" src=\"http:\/\/sandbox.interswitchng.com\/docbase\/wp-content\/uploads\/2017\/06\/hash1.png\" alt=\"\" width=\"750\" height=\"892\" srcset=\"https:\/\/sandbox.interswitchng.com\/docbase\/wp-content\/uploads\/2017\/06\/hash1.png 750w, https:\/\/sandbox.interswitchng.com\/docbase\/wp-content\/uploads\/2017\/06\/hash1-252x300.png 252w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":295,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"doc_tag":[],"_links":{"self":[{"href":"https:\/\/sandbox.interswitchng.com\/docbase\/wp-json\/wp\/v2\/docs\/301"}],"collection":[{"href":"https:\/\/sandbox.interswitchng.com\/docbase\/wp-json\/wp\/v2\/docs"}],"about":[{"href":"https:\/\/sandbox.interswitchng.com\/docbase\/wp-json\/wp\/v2\/types\/docs"}],"author":[{"embeddable":true,"href":"https:\/\/sandbox.interswitchng.com\/docbase\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sandbox.interswitchng.com\/docbase\/wp-json\/wp\/v2\/comments?post=301"}],"version-history":[{"count":4,"href":"https:\/\/sandbox.interswitchng.com\/docbase\/wp-json\/wp\/v2\/docs\/301\/revisions"}],"predecessor-version":[{"id":1830,"href":"https:\/\/sandbox.interswitchng.com\/docbase\/wp-json\/wp\/v2\/docs\/301\/revisions\/1830"}],"up":[{"embeddable":true,"href":"https:\/\/sandbox.interswitchng.com\/docbase\/wp-json\/wp\/v2\/docs\/295"}],"next":[{"title":"Server Response","link":"https:\/\/sandbox.interswitchng.com\/docbase\/docs\/webpay\/transaction-confirmation-leg\/server-response\/","href":"https:\/\/sandbox.interswitchng.com\/docbase\/wp-json\/wp\/v2\/docs\/308"}],"prev":[{"title":"Getting Transaction Status","link":"https:\/\/sandbox.interswitchng.com\/docbase\/docs\/webpay\/transaction-confirmation-leg\/getting-transaction-status\/","href":"https:\/\/sandbox.interswitchng.com\/docbase\/wp-json\/wp\/v2\/docs\/298"}],"wp:attachment":[{"href":"https:\/\/sandbox.interswitchng.com\/docbase\/wp-json\/wp\/v2\/media?parent=301"}],"wp:term":[{"taxonomy":"doc_tag","embeddable":true,"href":"https:\/\/sandbox.interswitchng.com\/docbase\/wp-json\/wp\/v2\/doc_tag?post=301"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}