Error de Instalacion Laravel

[pilucho]

hice los pasos de instalacion como indica el video etc.. en wampserver que es lo que uso. primero necesito me ayuden con este error luego investigare como funciona todo esto y que archivos debo subir a un hosting etc.. etc.. pero solucionar el error primero porfavor.


los erroes son:

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1/1
FatalErrorException in Encrypter.php line 73:
Call to undefined function openssl_encrypt()
in Encrypter.php line 73
at FatalErrorException->__construct() in HandleExceptions.php line 133
at HandleExceptions->fatalExceptionFromError() in HandleExceptions.php line 118
at HandleExceptions->handleShutdown() in HandleExceptions.php line 0
at Encrypter->encrypt() in EncryptCookies.php line 131
at EncryptCookies->encrypt() in EncryptCookies.php line 59
at EncryptCookies->handle() in Pipeline.php line 137
at Pipeline->Illuminate\Pipeline\{closure}() in Pipeline.php line 33
at Pipeline->Illuminate\Routing\{closure}() in Pipeline.php line 104
at Pipeline->then() in Router.php line 644
at Router->runRouteWithinStack() in Router.php line 618
at Router->dispatchToRoute() in Router.php line 596
at Router->dispatch() in Kernel.php line 267
at Kernel->Illuminate\Foundation\Http\{closure}() in Pipeline.php line 53
at Pipeline->Illuminate\Routing\{closure}() in CheckForMaintenanceMode.php line 46
at CheckForMaintenanceMode->handle() in Pipeline.php line 137
at Pipeline->Illuminate\Pipeline\{closure}() in Pipeline.php line 33
at Pipeline->Illuminate\Routing\{closure}() in Pipeline.php line 104
at Pipeline->then() in Kernel.php line 149
at Kernel->sendRequestThroughRouter() in Kernel.php line 116
at Kernel->handle() in index.php line 54
at {main}() in index.php line 0