{"id":184,"date":"2014-12-09T08:51:36","date_gmt":"2014-12-09T08:51:36","guid":{"rendered":"http:\/\/hhardsoft.wordpress.com\/?p=184"},"modified":"2014-12-09T08:51:36","modified_gmt":"2014-12-09T08:51:36","slug":"practica-de-cifrar-firmar-y-enviar-datos-de-forma-segura-con-gpg","status":"publish","type":"post","link":"https:\/\/hardsoftsecurity.es\/index.php\/2014\/12\/09\/practica-de-cifrar-firmar-y-enviar-datos-de-forma-segura-con-gpg\/","title":{"rendered":"Practica de cifrar, firmar y enviar datos de forma segura con GPG."},"content":{"rendered":"<p>La practica ha sido realizado en un equipo con Linux Mint.<\/p>\n<p><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\"><b>1.- Realizar un resumen de todos los par\u00e1metros del comando GPG a modo de chuleta.<\/b><\/span><\/span><\/p>\n<p><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\"><b>Comandos:<\/b><\/span><\/span><\/p>\n<p><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\"><b>sudo echo \u201ctexto a introducir dentro del archivo de texto\u201d &gt; nombreDelArchivo.txt<\/b><\/span><\/span><\/p>\n<p><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\"><b>sudo mkdir nombreCarpeta<\/b><\/span><\/span><\/p>\n<p><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">Comandos GnuPG:<\/span><\/span><\/p>\n<p align=\"center\"><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\"><b>Encriptado simetrico.<\/b><\/span><\/span><\/p>\n<p><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">&#8211; gpg -c [Archivo]<\/span><\/span><\/p>\n<p><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">Parametro -c para encriptar clave simetrica el archivo.<\/span><\/span><\/p>\n<p><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">&#8211; gpg -d [Archivo]<\/span><\/span><\/p>\n<p><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">Parametro -d [Archivo] para desencriptar el archivo.<\/span><\/span><\/p>\n<p align=\"center\"><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\"><b>Encriptado asmietrico.<\/b><\/span><\/span><\/p>\n<pre class=\"western\"><code class=\"western\"><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">                                                           - gpg \u2013gen-key<\/span><\/span><\/code><\/pre>\n<p><code class=\"western\"><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">Para generar claves publica y privada.<\/span><\/span><\/code><\/p>\n<p><code class=\"western\"><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">- <\/span><\/span><\/code><code class=\"western\"><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">gpg -k<\/span><\/span><\/code><\/p>\n<p><code class=\"western\"><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">Ver las claves generadas que tenemos en nuestro sistema.<\/span><\/span><\/code><\/p>\n<p><code class=\"western\"><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">- <\/span><\/span><\/code><code class=\"western\"><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">gpg -output [archivo destino] --export [ID de a clave p\u00fablica]<\/span><\/span><\/code><\/p>\n<p><code class=\"western\"><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">Para exportar la clave publica que deseemos.<\/span><\/span><\/code><\/p>\n<p><code class=\"western\"><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">- gpg --import [archivo]<\/span><\/span><\/code><\/p>\n<p><!--more--><\/p>\n<p><code class=\"western\"><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">Importar clave.<\/span><\/span><\/code><\/p>\n<p><code class=\"western\"><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">- gpg --encrypt --recipient [idDeLaClave] [archivo]<\/span><\/span><\/code><\/p>\n<p><code class=\"western\"><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">Para encriptar el archivo que quiero enviar.<\/span><\/span><\/code><\/p>\n<p><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\"><b>2.- Calcula cu\u00e1ntas claves necesitan intercambiar un grupo de cinco personas que se quieran mandar entre ellas correos electr\u00f3nicos cifrados utilizando claves sim\u00e9tricas. Las claves deben ser distintas entre todas las personas.<\/b><\/span><\/span><\/p>\n<p><span style=\"font-family:Liberation Serif, serif;\">Se necesitar\u00edan 20 intercambios teniendo en cuenta que cada persona tuviese su propia clave y la intercambia con todas las personas del grupo.<\/span><\/p>\n<p><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">Lo podemos hacer mediante la f\u00f3rmula (N-1)*N <\/span><\/span><\/p>\n<p><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\"><b>a \u00bfCu\u00e1ntas claves son necesarias si el grupo lo conforman diez personas? Especifica la cantidad de claves de cada usuario.<\/b><\/span><\/span><\/p>\n<p><span style=\"color:#222222;\"><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">Se necesitar\u00edan 90 intercambios teniendo en cuenta que cada persona tuviese su propia clave y la intercambia con todas las personas del grupo.<\/span><\/span><\/span><\/p>\n<p><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\"><b>B <span lang=\"es-ES\">\u00bfQu\u00e9 suceder\u00eda si en vez de diez fuesen cien?. Especifica la cantidad de claves de cada usuario?<\/span><\/b><\/span><\/span><\/p>\n<p><span style=\"color:#222222;\"><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">Se necesitar\u00edan 9900 intercambios teniendo en cuenta que cada persona tuviese su propia clave y la intercambia con todas las personas del grupo.<\/span><\/span><\/span><\/p>\n<p><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\"><b><span lang=\"es-ES\">3.- Contesta a los mismos apartados que anteriormente pero esta vez utilizando el m\u00e9todo de las claves asim\u00e9tricas (p\u00fablica y privada.). <\/span>Las claves deben ser distintas entre todas las personas.<\/b><\/span><\/span><\/p>\n<p><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\"><span style=\"color:#222222;\">Para 5 personas por grupo: Se necesitar\u00edan 20 intercambios.<\/span><\/span><\/span><\/p>\n<p><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\"><span style=\"color:#222222;\">Para 10 personas por grupo: Se necesitar\u00edan 90 intercambios. <\/span><\/span><\/span><\/p>\n<p><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\"><span style=\"color:#222222;\">Para 100 personas por grupo: Se necesitar\u00edan 9900 intercambios.<\/span><\/span><\/span><\/p>\n<p><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\"><span style=\"color:#222222;\">Llegamos a la conclusi\u00f3n que tanto en el sim\u00e9trico como en el asim\u00e9trico necesitamos las mismas claves.<\/span><\/span><\/span><\/p>\n<p><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\"><b>4.- Realiza la encriptaci\u00f3n sim\u00e9trica de un fichero o carpeta cualquiera, ver caso pr\u00e1ctico 2, pag 85<\/b><\/span><\/span><\/p>\n<p><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">Se me deber\u00e1 enviar (mediante enlace) el fichero con la clave, el nombre del fichero ser\u00e1:<\/span><\/span><\/p>\n<p><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\"> Ejer4SIT4NombreApellidoClave<\/span><\/span><\/p>\n<p><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">Enviar tambi\u00e9n el comando para realizar la copia o captura de pantalla.<\/span><\/span><\/p>\n<p><a href=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_001.png?ssl=1\"><img data-recalc-dims=\"1\" decoding=\"async\" data-attachment-id=\"185\" data-permalink=\"https:\/\/hardsoftsecurity.es\/index.php\/2014\/12\/09\/practica-de-cifrar-firmar-y-enviar-datos-de-forma-segura-con-gpg\/seleccion_001\/\" data-orig-file=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_001.png?fit=642%2C52&amp;ssl=1\" data-orig-size=\"642,52\" data-comments-opened=\"1\" data-image-title=\"Selecci\u00f3n_001\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_001.png?fit=642%2C52&amp;ssl=1\" class=\"aligncenter size-full wp-image-185\" src=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_001.png?resize=640%2C52&#038;ssl=1\" alt=\"Selecci\u00f3n_001\" width=\"640\" height=\"52\" srcset=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_001.png?w=642&amp;ssl=1 642w, https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_001.png?resize=300%2C24&amp;ssl=1 300w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p>Enlace del archivo: <a href=\"https:\/\/www.dropbox.com\/s\/c56c7ypgc1bdm6t\/Ejer4SIT4DavidDeMayadavid1234.txt.gpg?dl=0\">https:\/\/www.dropbox.com\/s\/c56c7ypgc1bdm6t\/Ejer4SIT4DavidDeMayadavid1234.txt.gpg?dl=0<\/a><\/p>\n<p><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\"><b>5.- Genera un par de claves para el uso de cifrado asim\u00e9trico usando DSA y ElGamal, elige el tama\u00f1o de la misma y refl\u00e9jalo en este pregunta, elige el tiempo de validez y realiza un listado de claves, escribe el identificador de la clave generada y la contrase\u00f1a para proteger las claves.<\/b><\/span><\/span><\/p>\n<p><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\"><b>Adem\u00e1s, anexa a este ejercicio las capturas de todo el proceso.<\/b><\/span><\/span><\/p>\n<p><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\"><b>Para este ejercicio ver caso pract 3 pag 87<\/b><\/span><\/span><\/p>\n<p><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">&#8211; Para generar el par de claves procedemos a poner el comando:<\/span><\/span><\/p>\n<p align=\"center\"><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">gpg \u2013gen-key<\/span><\/span><\/p>\n<p align=\"center\"><a href=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_002.png?ssl=1\"><img data-recalc-dims=\"1\" fetchpriority=\"high\" decoding=\"async\" data-attachment-id=\"186\" data-permalink=\"https:\/\/hardsoftsecurity.es\/index.php\/2014\/12\/09\/practica-de-cifrar-firmar-y-enviar-datos-de-forma-segura-con-gpg\/seleccion_002\/\" data-orig-file=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_002.png?fit=557%2C189&amp;ssl=1\" data-orig-size=\"557,189\" data-comments-opened=\"1\" data-image-title=\"Selecci\u00f3n_002\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_002.png?fit=557%2C189&amp;ssl=1\" class=\"aligncenter size-full wp-image-186\" src=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_002.png?resize=557%2C189&#038;ssl=1\" alt=\"Selecci\u00f3n_002\" width=\"557\" height=\"189\" srcset=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_002.png?w=557&amp;ssl=1 557w, https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_002.png?resize=300%2C102&amp;ssl=1 300w\" sizes=\"(max-width: 557px) 100vw, 557px\" \/><\/a><\/p>\n<p><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">&#8211; El siguiente paso es elegir el tama\u00f1o de la clave, elegir\u00e9 2048 que es la que viene por defecto.<\/span><\/span><\/p>\n<p><a href=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_003.png?ssl=1\"><img data-recalc-dims=\"1\" decoding=\"async\" data-attachment-id=\"187\" data-permalink=\"https:\/\/hardsoftsecurity.es\/index.php\/2014\/12\/09\/practica-de-cifrar-firmar-y-enviar-datos-de-forma-segura-con-gpg\/seleccion_003\/\" data-orig-file=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_003.png?fit=643%2C53&amp;ssl=1\" data-orig-size=\"643,53\" data-comments-opened=\"1\" data-image-title=\"Selecci\u00f3n_003\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_003.png?fit=643%2C53&amp;ssl=1\" class=\"aligncenter size-full wp-image-187\" src=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_003.png?resize=640%2C53&#038;ssl=1\" alt=\"Selecci\u00f3n_003\" width=\"640\" height=\"53\" srcset=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_003.png?w=643&amp;ssl=1 643w, https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_003.png?resize=300%2C25&amp;ssl=1 300w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">&#8211; Lo pr\u00f3ximo que nos aparecer\u00e1 ser\u00e1, el tiempo de vida de las claves generadas, selecciono que no se caduque.<\/span><\/span><\/p>\n<p><a href=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_004.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"188\" data-permalink=\"https:\/\/hardsoftsecurity.es\/index.php\/2014\/12\/09\/practica-de-cifrar-firmar-y-enviar-datos-de-forma-segura-con-gpg\/seleccion_004\/\" data-orig-file=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_004.png?fit=642%2C123&amp;ssl=1\" data-orig-size=\"642,123\" data-comments-opened=\"1\" data-image-title=\"Selecci\u00f3n_004\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_004.png?fit=642%2C123&amp;ssl=1\" class=\"aligncenter size-full wp-image-188\" src=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_004.png?resize=640%2C123&#038;ssl=1\" alt=\"Selecci\u00f3n_004\" width=\"640\" height=\"123\" srcset=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_004.png?w=642&amp;ssl=1 642w, https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_004.png?resize=300%2C57&amp;ssl=1 300w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">&#8211; El siguiente paso que se nos presenta es, rellenar cierta informaci\u00f3n para guardarla con las claves generadas.<\/span><\/span><\/p>\n<p><a href=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_005.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"189\" data-permalink=\"https:\/\/hardsoftsecurity.es\/index.php\/2014\/12\/09\/practica-de-cifrar-firmar-y-enviar-datos-de-forma-segura-con-gpg\/seleccion_005\/\" data-orig-file=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_005.png?fit=644%2C190&amp;ssl=1\" data-orig-size=\"644,190\" data-comments-opened=\"1\" data-image-title=\"Selecci\u00f3n_005\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_005.png?fit=644%2C190&amp;ssl=1\" class=\"aligncenter size-full wp-image-189\" src=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_005.png?resize=640%2C189&#038;ssl=1\" alt=\"Selecci\u00f3n_005\" width=\"640\" height=\"189\" srcset=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_005.png?w=644&amp;ssl=1 644w, https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_005.png?resize=300%2C89&amp;ssl=1 300w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">&#8211; Despu\u00e9s de aceptar, generar las claves, nos pedir\u00e1 introducir una contrase\u00f1a para las contrase\u00f1as generadas. Contrase\u00f1a utilizada, \u201cdavid1234\u201d.<\/span><\/span><\/p>\n<p><a href=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_006.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"190\" data-permalink=\"https:\/\/hardsoftsecurity.es\/index.php\/2014\/12\/09\/practica-de-cifrar-firmar-y-enviar-datos-de-forma-segura-con-gpg\/seleccion_006\/\" data-orig-file=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_006.png?fit=642%2C19&amp;ssl=1\" data-orig-size=\"642,19\" data-comments-opened=\"1\" data-image-title=\"Selecci\u00f3n_006\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_006.png?fit=642%2C19&amp;ssl=1\" class=\"aligncenter size-full wp-image-190\" src=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_006.png?resize=640%2C19&#038;ssl=1\" alt=\"Selecci\u00f3n_006\" width=\"640\" height=\"19\" srcset=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_006.png?w=642&amp;ssl=1 642w, https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_006.png?resize=300%2C9&amp;ssl=1 300w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><a href=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_007.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"191\" data-permalink=\"https:\/\/hardsoftsecurity.es\/index.php\/2014\/12\/09\/practica-de-cifrar-firmar-y-enviar-datos-de-forma-segura-con-gpg\/seleccion_007\/\" data-orig-file=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_007.png?fit=321%2C179&amp;ssl=1\" data-orig-size=\"321,179\" data-comments-opened=\"1\" data-image-title=\"Selecci\u00f3n_007\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_007.png?fit=321%2C179&amp;ssl=1\" class=\"aligncenter size-full wp-image-191\" src=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_007.png?resize=321%2C179&#038;ssl=1\" alt=\"Selecci\u00f3n_007\" width=\"321\" height=\"179\" srcset=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_007.png?w=321&amp;ssl=1 321w, https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_007.png?resize=300%2C167&amp;ssl=1 300w\" sizes=\"(max-width: 321px) 100vw, 321px\" \/><\/a><\/p>\n<p><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">&#8211; Tras haber rellenado el formulario y haber introducido la clave, se nos genera el par de claves, como resultado siguiente.<\/span><\/span><\/p>\n<p><a href=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_008.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"192\" data-permalink=\"https:\/\/hardsoftsecurity.es\/index.php\/2014\/12\/09\/practica-de-cifrar-firmar-y-enviar-datos-de-forma-segura-con-gpg\/seleccion_008\/\" data-orig-file=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_008.png?fit=641%2C220&amp;ssl=1\" data-orig-size=\"641,220\" data-comments-opened=\"1\" data-image-title=\"Selecci\u00f3n_008\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_008.png?fit=641%2C220&amp;ssl=1\" class=\"aligncenter size-full wp-image-192\" src=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_008.png?resize=640%2C220&#038;ssl=1\" alt=\"Selecci\u00f3n_008\" width=\"640\" height=\"220\" srcset=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_008.png?w=641&amp;ssl=1 641w, https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_008.png?resize=300%2C103&amp;ssl=1 300w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">&#8211; Procedemos a ver las claves que hemos generado, con el comando:<\/span><\/span><\/p>\n<p align=\"center\"><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">gpg -k<\/span><\/span><\/p>\n<p align=\"center\"><a href=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_009.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"193\" data-permalink=\"https:\/\/hardsoftsecurity.es\/index.php\/2014\/12\/09\/practica-de-cifrar-firmar-y-enviar-datos-de-forma-segura-con-gpg\/seleccion_009\/\" data-orig-file=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_009.png?fit=658%2C121&amp;ssl=1\" data-orig-size=\"658,121\" data-comments-opened=\"1\" data-image-title=\"Selecci\u00f3n_009\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_009.png?fit=658%2C121&amp;ssl=1\" class=\"aligncenter size-full wp-image-193\" src=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_009.png?resize=640%2C118&#038;ssl=1\" alt=\"Selecci\u00f3n_009\" width=\"640\" height=\"118\" srcset=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_009.png?w=658&amp;ssl=1 658w, https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_009.png?resize=300%2C55&amp;ssl=1 300w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p align=\"left\"><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\"><b>6.- En grupos de 4. Llegado a este punto cada uno de vosotros tiene una pareja de claves. Se trata de que cada uno env\u00ede a los otros 3 su clave p\u00fablica. Seguidamente cada uno le enviar\u00e1 a los otros tres un fichero de texto encriptado con la p\u00fablica de UNO de ellos (con lo que s\u00f3lo uno de ellos podr\u00e1 desencriptar el fichero). El contenido del fichero de texto ser\u00e1 el nombre de la persona que tiene el poder de desencriptarlo.<\/b><\/span><\/span><\/p>\n<p><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">&#8211; Lo primero que realizare, ser\u00e1 exportar el la clave publica al escritorio, para despu\u00e9s mand\u00e1rsela a los compa\u00f1eros, con el siguiente comando:<\/span><\/span><\/p>\n<p align=\"center\"><code class=\"western\"><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">gpg -output [archivo destino] --export [ID de a clave p\u00fablica]<\/span><\/span><\/code><\/p>\n<p align=\"center\"><a href=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_010.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"194\" data-permalink=\"https:\/\/hardsoftsecurity.es\/index.php\/2014\/12\/09\/practica-de-cifrar-firmar-y-enviar-datos-de-forma-segura-con-gpg\/seleccion_010\/\" data-orig-file=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_010.png?fit=658%2C36&amp;ssl=1\" data-orig-size=\"658,36\" data-comments-opened=\"1\" data-image-title=\"Selecci\u00f3n_010\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_010.png?fit=658%2C36&amp;ssl=1\" class=\"aligncenter size-full wp-image-194\" src=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_010.png?resize=640%2C35&#038;ssl=1\" alt=\"Selecci\u00f3n_010\" width=\"640\" height=\"35\" srcset=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_010.png?w=658&amp;ssl=1 658w, https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_010.png?resize=300%2C16&amp;ssl=1 300w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p align=\"left\"><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">&#8211; El siguiente paso, es importar a nuestras claves la clave publica del compa\u00f1ero que se har\u00e1 con el siguiente comando:<\/span><\/span><\/p>\n<pre class=\"western\"><code class=\"western\"><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">                                                       gpg --import <\/span><\/span><\/code><code class=\"western\"><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">[archivo]\n\n<a href=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_011.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"195\" data-permalink=\"https:\/\/hardsoftsecurity.es\/index.php\/2014\/12\/09\/practica-de-cifrar-firmar-y-enviar-datos-de-forma-segura-con-gpg\/seleccion_011\/\" data-orig-file=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_011.png?fit=660%2C86&amp;ssl=1\" data-orig-size=\"660,86\" data-comments-opened=\"1\" data-image-title=\"Selecci\u00f3n_011\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_011.png?fit=660%2C86&amp;ssl=1\" class=\"aligncenter size-full wp-image-195\" src=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_011.png?resize=640%2C83&#038;ssl=1\" alt=\"Selecci\u00f3n_011\" width=\"640\" height=\"83\" srcset=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_011.png?w=660&amp;ssl=1 660w, https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_011.png?resize=300%2C39&amp;ssl=1 300w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a>\n<\/span><\/span><\/code><\/pre>\n<p><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\"><span lang=\"es-ES\">&#8211;<\/span><span lang=\"es-ES\"> Aqu\u00ed vemos como se ha a\u00f1adido bien la clave p\u00fablica a nuestro anillo de claves.<\/span><\/span><\/span><\/p>\n<p><a href=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_012.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"196\" data-permalink=\"https:\/\/hardsoftsecurity.es\/index.php\/2014\/12\/09\/practica-de-cifrar-firmar-y-enviar-datos-de-forma-segura-con-gpg\/seleccion_012\/\" data-orig-file=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_012.png?fit=658%2C203&amp;ssl=1\" data-orig-size=\"658,203\" data-comments-opened=\"1\" data-image-title=\"Selecci\u00f3n_012\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_012.png?fit=658%2C203&amp;ssl=1\" class=\"aligncenter size-full wp-image-196\" src=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_012.png?resize=640%2C197&#038;ssl=1\" alt=\"Selecci\u00f3n_012\" width=\"640\" height=\"197\" srcset=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_012.png?w=658&amp;ssl=1 658w, https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_012.png?resize=300%2C93&amp;ssl=1 300w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p align=\"left\"><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">&#8211; El siguiente paso, que realizo es crear el archivo a compartir, con el siguiente comando:<\/span><\/span><\/p>\n<p align=\"center\"><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">sudo echo &#8220;Pedro Jose Hernandez Lopez&#8221; &gt; pruebaEncriptado.txt<\/span><\/span><\/p>\n<p align=\"center\"><a href=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_013.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"197\" data-permalink=\"https:\/\/hardsoftsecurity.es\/index.php\/2014\/12\/09\/practica-de-cifrar-firmar-y-enviar-datos-de-forma-segura-con-gpg\/seleccion_013\/\" data-orig-file=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_013.png?fit=658%2C23&amp;ssl=1\" data-orig-size=\"658,23\" data-comments-opened=\"1\" data-image-title=\"Selecci\u00f3n_013\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_013.png?fit=658%2C23&amp;ssl=1\" class=\"aligncenter size-full wp-image-197\" src=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_013.png?resize=640%2C22&#038;ssl=1\" alt=\"Selecci\u00f3n_013\" width=\"640\" height=\"22\" srcset=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_013.png?w=658&amp;ssl=1 658w, https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_013.png?resize=300%2C10&amp;ssl=1 300w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p align=\"left\"><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">&#8211; Lo siguiente es encriptar con la clave publica del compa\u00f1ero para compartir el archivo, con el siguiente comando:<\/span><\/span><\/p>\n<pre class=\"western\"><code class=\"western\"><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">gpg --encrypt --recipient <\/span><\/span><\/code><code class=\"western\"><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">[idDeLaClave]<\/span><\/span><\/code><code class=\"western\">\n<\/code><code class=\"western\"><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">[archivo]\n<a href=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_014.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"198\" data-permalink=\"https:\/\/hardsoftsecurity.es\/index.php\/2014\/12\/09\/practica-de-cifrar-firmar-y-enviar-datos-de-forma-segura-con-gpg\/seleccion_014\/\" data-orig-file=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_014.png?fit=658%2C238&amp;ssl=1\" data-orig-size=\"658,238\" data-comments-opened=\"1\" data-image-title=\"Selecci\u00f3n_014\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_014.png?fit=658%2C238&amp;ssl=1\" class=\"aligncenter size-full wp-image-198\" src=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_014.png?resize=640%2C231&#038;ssl=1\" alt=\"Selecci\u00f3n_014\" width=\"640\" height=\"231\" srcset=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_014.png?w=658&amp;ssl=1 658w, https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_014.png?resize=300%2C109&amp;ssl=1 300w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><\/span><\/span><\/code><\/pre>\n<p align=\"left\"><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">-Ahora para desencriptar el mensaje que me ha enviado el compa\u00f1ero lo haremos con el siguiente comando:<\/span><\/span><\/p>\n<p align=\"center\"><code class=\"western\"><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">gpg -d [Archivo]<\/span><\/span><\/code><\/p>\n<p align=\"center\"><a href=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_015.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"199\" data-permalink=\"https:\/\/hardsoftsecurity.es\/index.php\/2014\/12\/09\/practica-de-cifrar-firmar-y-enviar-datos-de-forma-segura-con-gpg\/seleccion_015\/\" data-orig-file=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_015.png?fit=643%2C21&amp;ssl=1\" data-orig-size=\"643,21\" data-comments-opened=\"1\" data-image-title=\"Selecci\u00f3n_015\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_015.png?fit=643%2C21&amp;ssl=1\" class=\"aligncenter size-full wp-image-199\" src=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_015.png?resize=640%2C21&#038;ssl=1\" alt=\"Selecci\u00f3n_015\" width=\"640\" height=\"21\" srcset=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_015.png?w=643&amp;ssl=1 643w, https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_015.png?resize=300%2C10&amp;ssl=1 300w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p align=\"left\"><code class=\"western\"><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">- <\/span><\/span><\/code><code class=\"western\"><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">Lo siguiente que har\u00e1 sera pedir la contrase\u00f1a de seguridad de nuestra clave privada anteriormente generada.<\/span><\/span><\/code><\/p>\n<p align=\"left\"><a href=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_016.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"200\" data-permalink=\"https:\/\/hardsoftsecurity.es\/index.php\/2014\/12\/09\/practica-de-cifrar-firmar-y-enviar-datos-de-forma-segura-con-gpg\/seleccion_016\/\" data-orig-file=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_016.png?fit=636%2C269&amp;ssl=1\" data-orig-size=\"636,269\" data-comments-opened=\"1\" data-image-title=\"Selecci\u00f3n_016\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_016.png?fit=636%2C269&amp;ssl=1\" class=\"aligncenter size-full wp-image-200\" src=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_016.png?resize=636%2C269&#038;ssl=1\" alt=\"Selecci\u00f3n_016\" width=\"636\" height=\"269\" srcset=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_016.png?w=636&amp;ssl=1 636w, https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_016.png?resize=300%2C127&amp;ssl=1 300w\" sizes=\"(max-width: 636px) 100vw, 636px\" \/><\/a><\/p>\n<p align=\"left\"><span style=\"font-family:Liberation Serif, serif;\"><span style=\"font-size:medium;\">&#8211; Lo siguiente que se nos mostrara ser\u00e1 el contenido del mensaje una vez desencriptado.<\/span><\/span><\/p>\n<p align=\"left\"><a href=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_017.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"201\" data-permalink=\"https:\/\/hardsoftsecurity.es\/index.php\/2014\/12\/09\/practica-de-cifrar-firmar-y-enviar-datos-de-forma-segura-con-gpg\/seleccion_017\/\" data-orig-file=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_017.png?fit=658%2C67&amp;ssl=1\" data-orig-size=\"658,67\" data-comments-opened=\"1\" data-image-title=\"Selecci\u00f3n_017\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_017.png?fit=658%2C67&amp;ssl=1\" class=\"aligncenter size-full wp-image-201\" src=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_017.png?resize=640%2C65&#038;ssl=1\" alt=\"Selecci\u00f3n_017\" width=\"640\" height=\"65\" srcset=\"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_017.png?w=658&amp;ssl=1 658w, https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2014\/12\/seleccic3b3n_017.png?resize=300%2C31&amp;ssl=1 300w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p>Todo el proceso de encriptaci\u00f3n, como las im\u00e1genes han sido comprobados, y capturadas por mi.<\/p>\n<p>Saludos, David De Maya Merras, @DavidDeMaya<\/p>\n","protected":false},"excerpt":{"rendered":"<p>La practica ha sido realizado en un equipo con Linux Mint. 1.- Realizar un resumen de todos los par\u00e1metros del comando GPG a modo de chuleta. Comandos: sudo echo \u201ctexto &#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_hide_featured_image":false,"_jetpack_featured_image_duplicate_dismissed":0,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[3,7],"tags":[],"class_list":["post-184","post","type-post","status-publish","format-standard","hentry","category-guias","category-seguridad-informatica"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Practica de cifrar, firmar y enviar datos de forma segura con GPG. - Hardsoft Security<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/hardsoftsecurity.es\/index.php\/2014\/12\/09\/practica-de-cifrar-firmar-y-enviar-datos-de-forma-segura-con-gpg\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Practica de cifrar, firmar y enviar datos de forma segura con GPG. - Hardsoft Security\" \/>\n<meta property=\"og:description\" content=\"La practica ha sido realizado en un equipo con Linux Mint. 1.- Realizar un resumen de todos los par\u00e1metros del comando GPG a modo de chuleta. 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REINICIO DEL SERVICIO SAMBA Comando: - sudo service smbd start\/stop o restart * Este comando inicia,\u2026","rel":"","context":"En \u00abGu\u00edas\u00bb","block_context":{"text":"Gu\u00edas","link":"https:\/\/hardsoftsecurity.es\/index.php\/category\/guias\/"},"img":{"alt_text":"Logo_Samba","src":"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2015\/01\/logo_samba.png?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2015\/01\/logo_samba.png?resize=350%2C200 1x, https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2015\/01\/logo_samba.png?resize=525%2C300 1.5x"},"classes":[]},{"id":273,"url":"https:\/\/hardsoftsecurity.es\/index.php\/2015\/01\/10\/protege-tu-gestor-de-arranque-en-tu-s-o-basado-en-gnulinux\/","url_meta":{"origin":184,"position":1},"title":"Protege tu gestor de arranque en tu S.O basado en GNU\/Linux","author":"david","date":"enero 10, 2015","format":false,"excerpt":"Antes de empezar a ver cuales son las maneras de proteger tu gestor de arranque, debemos saber que estamos tocando, es decir \u00bfQu\u00e9 es el gestor de arranque?. El gestor de arranque es un men\u00fa, donde puedes seleccionar desde donde quieres iniciar un sistema operativo, como podr\u00eda ser desde el\u2026","rel":"","context":"En \u00abHardening linux\u00bb","block_context":{"text":"Hardening linux","link":"https:\/\/hardsoftsecurity.es\/index.php\/category\/hardening-linux\/"},"img":{"alt_text":"Linux","src":"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2015\/01\/linux.png?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2015\/01\/linux.png?resize=350%2C200 1x, https:\/\/i0.wp.com\/hardsoftsecurity.es\/wp-content\/uploads\/2015\/01\/linux.png?resize=525%2C300 1.5x"},"classes":[]},{"id":310,"url":"https:\/\/hardsoftsecurity.es\/index.php\/2015\/01\/12\/gestion-de-usuarios-y-sus-contrasenas-en-s-o-gnulinux\/","url_meta":{"origin":184,"position":2},"title":"Gesti\u00f3n de usuarios y sus contrase\u00f1as en S.O GNU\/Linux","author":"david","date":"enero 12, 2015","format":false,"excerpt":"Gesti\u00f3n de usuarios y contrase\u00f1as GNU\/Linux Gesti\u00f3n de usuarios y la contrase\u00f1a: Aqu\u00ed mostraremos la manera de gestionar a usuarios y sus contrase\u00f1as de un sistema operativo basado en Linux. 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