{"id":283,"date":"2015-05-22T14:55:03","date_gmt":"2015-05-22T14:55:12","guid":{"rendered":"https:\/\/98701encryp.jpg"},"modified":"2015-07-16T14:25:09","modified_gmt":"2015-07-16T20:25:09","slug":"encriptar-y-desencriptar-cadena-con-php","status":"publish","type":"post","link":"https:\/\/emanuelpaxtian.com\/blog\/encriptar-y-desencriptar-cadena-con-php\/","title":{"rendered":"Encriptar y desencriptar cadena con PHP"},"content":{"rendered":"<p>Muchas veces necesitamos guardar datos encriptados de cierta forma por ello les traigo esta funci\u00f3n que me encontr\u00e9 en la red una es para encriptar los datos y la otra para poderlos recuperar en ellos solo tendremos que pasar los datos.<\/p>\n<pre class=\"brush:php\">function encrypt($string, $key) {\r\n   $result = '';\r\n   for($i=0; $i&lt;strlen($string); $i++) {\r\n      $char = substr($string, $i, 1);\r\n      $keychar = substr($key, ($i % strlen($key))-1, 1);\r\n      $char = chr(ord($char)+ord($keychar));\r\n      $result.=$char;\r\n   }\r\n   return base64_encode($result);\r\n}<\/pre>\n<p>Se utiliza un c\u00f3digo secreto, que es el que se pone en $key y que cuando desencriptemos necesitaremos saberlo para que lo haga correctamente. Para encriptar una cadena escribimos<\/p>\n<pre class=\"brush:php\">function decrypt($string, $key) {\r\n   $result = '';\r\n   $string = base64_decode($string);\r\n   for($i=0; $i&lt;strlen($string); $i++) {\r\n      $char = substr($string, $i, 1);\r\n      $keychar = substr($key, ($i % strlen($key))-1, 1);\r\n      $char = chr(ord($char)-ord($keychar));\r\n      $result.=$char;\r\n   }\r\n   return $result;\r\n}<\/pre>\n<p>Modo de uso<\/p>\n<pre>$cadena_encriptada = encrypt(\"LA CADENA A ENCRIPTAR\",\"LA CLAVE\");<\/pre>\n<p>Encrita<\/p>\n<pre>$cadena_desencriptada = decrypt(\"LA CADENA ENCRIPTADA\",\"LA CLAVE QUE SE US\u00d3 PARA ENCRIPTARLA\");<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Muchas veces necesitamos guardar datos encriptados de cierta forma por ello les traigo esta funci\u00f3n que me encontr\u00e9 en la red una es para encriptar los datos y la otra&hellip;<\/p>\n","protected":false},"author":1,"featured_media":547,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-283","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-php"],"_links":{"self":[{"href":"https:\/\/emanuelpaxtian.com\/blog\/wp-json\/wp\/v2\/posts\/283","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/emanuelpaxtian.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/emanuelpaxtian.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/emanuelpaxtian.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/emanuelpaxtian.com\/blog\/wp-json\/wp\/v2\/comments?post=283"}],"version-history":[{"count":0,"href":"https:\/\/emanuelpaxtian.com\/blog\/wp-json\/wp\/v2\/posts\/283\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/emanuelpaxtian.com\/blog\/wp-json\/wp\/v2\/media\/547"}],"wp:attachment":[{"href":"https:\/\/emanuelpaxtian.com\/blog\/wp-json\/wp\/v2\/media?parent=283"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/emanuelpaxtian.com\/blog\/wp-json\/wp\/v2\/categories?post=283"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/emanuelpaxtian.com\/blog\/wp-json\/wp\/v2\/tags?post=283"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}