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  • How to verify a digital signature with openssl

    - by Aaron Carlino
    I'm using a thirdparty credit card processing service (Paybox) that, after a successful transaction, redirects back to the website with a signature in the URL as a security measure to prevent people from manipulating data. It's supposed to prove that the request originated from this service. So my success URL looks something like this: /success.php?signature=[HUGE HASH] I have no idea where to start with verifying this signature. This service does provide a public key, and I assume I need to create a private key, but I don't know much beyond that. I'm pretty good with linux, and I know I'll have to run some openssl commands. I'm writing the verification script in PHP, which also has native openssl() functions. If anyone could please push me in the right direction with some pseudo code, or even functional code, I'd be very grateful. Thanks.

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  • How to create digital signature that can not be used to reproduce the message twice

    - by freediver
    I am creating a client-server application and I'd like to send data from server to client securely. Using public/private key algorithms makes sense and in PHP we can use openssl_sign and openssl_verify functions to check that the data came by someone who has the private key. Now imagine that one of the actions sent by server to client is destructive in nature. If somebody uses an HTTP sniffer to catch this command (which will be signed properly) how can I further protect the communication to ensure that only commands coming from our server get processed by the client? I was thinking about using current UTC time as part of the encrypted data but client time might be off. Is there a simple solution to the problem?

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  • Hub Forum - Connecting Digital Influencers - Paris 10 & 11 Octobre 2013

    - by Louisa Aggoune
    ORACLE a sponsorisé la 4ème édition du HUB FORUM qui s'est déroulé à l'Espace Pierre Cardin. Les 10,11 oct 2013, plus de 1200 leaders du digital, de la communication, du marketing, de la publicité et de l'innovation se réunissaient pour 2 jours de Conférence lors de la 4ème édition du HUBFORUM Paris, organisé par le HUB Institute.C'est l'évènement qui rassemble les décideurs du monde du digital et leur propose de rencontrer les meilleurs experts en communication du moment mais aussi d’échanger autour des pratiques qui ont fait leurs preuves. Il offre une occasion exceptionnelle de parler du futur du marketing digital, des nouvelles technologies et des médias. Le HUB FORUM en chiffre c'est:- 18 580 mentions- 3 520 vues du live- 80 speakers- 1 200 participants Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";} A cette occasion, Pascal Hary - Directeur du Développement des Ventes eXperience Client & Social Europe, a animé une conférence sur le thème  #Social Trend 2014. Pour découvrir l'album photo: https://www.facebook.com/hubforum

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  • iiR Hospital Digital 2011: Tras la historia digital ¿qué?

    - by Eloy M. Rodríguez
    Como el acceso a la documentación está restringido, sólo voy a comentar por encima algunos temas o planteamientos que me han llamado la atención del VI Foro Hospital Digital 2011, organizado por iiR. Y comienzo destacando la buena moderación de Maribel Grau del Hospital Clínic de Barcelona que estuvo sobria, eficaz y motivadora del debate. Me impresionó el proyecto Hospital Líquido del Hospital San Joan de Deu de Barcelona por el compromiso corporativo con una medicina colaborativa involucrando a los pacientes y a los profesionales, con unas iniciativas de eSalud y Salud2.0 avanzadas y apoyadas en un buen soporte legal, tecnológico, de los profesionales y con procesos bien definidos. Es un tema corporativo y no una prueba, como bien explicó Jorge Juan Fernández y detalló después Júlia Cutillas, cuyo rol, por cierto, es de Community Manager. En el debate salió el tema del retorno de la inversión y ese es un tema inmaduro, ya que es difícil de encontrar métricas adecuadas, pero no dudan de su continuidad ya que forma parte de una estrategia corporativa, en la que siempre hay elementos que forman parte de los costes generales y que se consideran necesarios para prestar el nivel de servicio que se desea ofrecer. Cecilia Pérez desde su posición como Jefe de Implantación de HCE en el Hospital de Móstoles hizo énfasis en la importancia de la gestión efectiva del cambio cuando se implanta un sistema de historia clínica electrónica que pasa por una inicial negación de los usarios al cambio, que luego presentan una resistencia al prinicipio para luego empezar a explorar posibilidades y llegar a un compromiso con el cambio. Santiago Borrás, Jefe de Sistemas del Hospital del Henares, partió de un hospital digital, pero eso no es más que el comienzo. Tras tres años la frustración de los profesionales es no perderse entre demasiada información. La etapa necesaria tras la digitalición es la generación y compartición del cononocimiento. Cristina Ibarrola, Directora de Atención Primaria del SNS-O comentó la experiencia de las interconsultas primaria-especializada que reducen la carga asistencial en primaria al aumentar la resolución. Hay una reserva de tiempos específicos en las agendas de los profesionales de ambos lados para garantizar una respuesta en un máximo de 48 horas. Eso ha llevado a una flexibiliazación de la agenda de los médicos de primaria que tienen un 25% más de tiempo para las consultas presenciales. Parece que aquí la opción tomada es dar más tiempo por paciente en vez de más pacientes, supongo que en parte porque la presión asistencial en Navarra tengo entendido que no es tan fuerte como en otras zonas. Alejandra Cubero comentó la experiencia de identificación de pacientes y de inteoperabilidad en Hospitales de Madrid. Ana Rosa Pulido presentó los logros del SES y su proyecto actual de Imagen Médica No Radiológica. Richard Bernat explicó la experiencia de HCE de Salud de la Mujer Dexeus, indicando que si bien no hay métricas del retorno de la inversión, sí hay una percepción del valor por las diferentes direcciones. Arturo Quesada glosó la experiencia de Jimena en el Hospital de Ávila, Joan Chafer desgranó el arduo proceso de introducción de sucesivas soluciones digitales en el Hospital Clínico San Carlos de Madrid comenzando por “Hogar Digital”, todo ello con financiación externa o recursos propios y cerró el turno de intervenciones no comerciales Pedro A. Bonal que presentó el valor de los eDocs dentro del Complejo (aplicado en sus dos acepciones de conjunto y complicado) Hospitalario de Toledo como tránsito a la HCE plenamente digital. Tweet

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  • Software to clean up photos of whiteboards and documents?

    - by Norman Ramsey
    I take a lot of photos of whiteboards, blackboards, and so on for teaching purposes (examples online through May 2010). I'm interested in cleaning them up for archival purposes, preferably using Linux. Commercial products ClearBoard and PhotoNote are priced a little aggressively for my purposes, plus my students would like to have this capability too. Does anyone know of any good, open source software for Converting photographs to images with just a few colors? Eliminating perspective distortion? Removing unwanted junk from around the edges of an image? or anything like that? I'm imagining that I start out with a picture of my whiteboard using red and black markers, and I end up with a three-color image using just white, red, and black. Or I photograph a laser-printed document and end up with a clean black-and-white image. I have tried standard tools that reduce the number of colors in an image, and they do a terrible job—probably because they are trying to reproduce the uneven illumination of the original image. Command-line Linux tools would be ideal.

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  • Feasible to use a laptop as a Digital Media Receiver/Extender?

    - by philosaur
    Since the price of many dedicated hardware Digital Media Extenders is only slightly lower than that of a cheap laptop, is there any reason you couldn't use a laptop as a Digital Media Extender? I'm looking for specific reasons that might make this unworkable. For instance, would the small screen/low-power video card of the laptop prevent the movie from playing well on the TV?

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  • High Speed Photographs Capture Pellet Gun Destruction

    - by Jason Fitzpatrick
    What do you get when you combine high speed flash photography, a carefully focused camera, and pellet gun? Gloriously detailed pictures of pellets tearing apart fruit, cans, ceramic gnomes, and more. Alan Sailer has a passion; in his garage studio he photographs all manner of objects–bottles, raspberries, candy, soda cans–at the moment a pellet shot from a pellet gun tears them apart. The results are beautiful and reminescent of early high-speed photos by photography pioneer Edgerton Born. Hit up the link below to check out the collection and read more about his process. Alan Sailer’s High Speed Photographs [via FlavorWire] Make Your Own Windows 8 Start Button with Zero Memory Usage Reader Request: How To Repair Blurry Photos HTG Explains: What Can You Find in an Email Header?

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  • Attention NYC Area Marketers: Don't Miss This Executive Breakfast on Brand Building in the Digital Era

    - by Christie Flanagan
    Presenting and Managing Digital Content – A New Approach Reach Your Audiences Where They Are with Multi-Channel Marketing Attention marketers in the greater New York City area! Oracle Platinum Partner, Bluenog, invites you to an executive breakfast seminar on brand building in the digital era. In an age where consumers are spending increasing amounts of their time online, interacting, communicating and being influenced by other brands, you too must go online with a coordinated plan. And, given the hundreds, if not thousands, of places that might be relevant, having the right content and the right tools are critical. This two-part presentation will focus on the growing need for content and connection in building and maintaining your brand, as well as the role of technology in helping you maintain brand consistency, reach and interaction while simplifying delivery to web, tablet, mobile, and social audiences. Location Oracle Offices 520 Madison Ave, 30th Floor New York, NY  10022 Day/Time Thursday, May 3, 2012 9:30 AM to 11:30 AM About the Speakers Agenda: Michelle Pujadas, is an award-winning marketer and communicator, who has worked with more than 125 companies to help them package, launch and expand their brand presence, online and off. Michelle is the Founder and co-CEO of Zer0 to 5ive, a strategic marketing and communications firm that focuses on B2B and B2C technology companies, with offices in NY, Philadelphia and Chicago. Peter Conrad, the E 2.0 Practice Director for Bluenog, focuses on translating exciting visions for user experiences into well executed technical implementations leveraging advanced WebCenter technology from Oracle. Bluenog provides the systems and professional services today's forward-looking marketing organizations need to convert content, business capabilities, and communications into productive interactions with customers and prospects. 09:30am Arrival, Registration & Breakfast 10:00am Brand Building through Content and Connection, presented by Michelle Pujadas, Founder and co-CEO of Zer0 to 5ive 10:30am Leveraging Technology for Brand Reach, Consistency and Interaction, presented by Peter Conrad, E2.0 Practice Director at Bluenog 11:15am Q&A 11:30am Adjourn

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  • digital magazine publishing engine licensing question

    - by nosarious
    I have a publishing engine I have been developing for thirty months but find myself being unable to work on it during my masters degree. I would like to make it open source in the interim to get others to use it and improve how it works. I would like to consider a licensing system that allows for multiple instances of the software for singular users (ie, a newspaper/magazine or zine hosting the code on their own). I would like to limit it from becoming the basis of a larger magazine hosting service right now because it is intended to be an integral part of a much larger publishing ecosystem which allows for the creation, dissemination and collection of publications as a free or very inexpensive service. Right now there is no license associated with it, which is why I am not posting a link here. (This system was developed to counter implied censorship for digital magazines and remove costly and confusing 'barriers to entry' for creators wishing to make interactive digital content. It is intended to be useful for free, but I would like to prevent people taking the code and using it to take advantage of others. It needs a bit of work to separate the content from the page itself to allow the access of multiple which I cannot develop right now) Any help or suggestion on how to handle licensing this code for contributions and use would be appreciated, and if anyone would like to see examples or the github I would be happy to send it.

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  • The Digital Economy bill

    <b>BBC News:</b> "The controversial Digital Economy Bill has been passed into law during the wash-up period, which sees outstanding legislation rushed through before a general election."

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  • The Legend of Digital Zelda [Video]

    - by Jason Fitzpatrick
    This clever animation project combines a real-world set, a great soundtrack, and a novel approach to showcasing the adventure Link goes through to rescue Zelda. The Legend of Digital Zelda [via TUAW] Why Does 64-Bit Windows Need a Separate “Program Files (x86)” Folder? Why Your Android Phone Isn’t Getting Operating System Updates and What You Can Do About It How To Delete, Move, or Rename Locked Files in Windows

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  • A Digital Forensics Student's Linux Workspace

    <b>Tech Source:</b> "Our next entry for the "The $100.00 (USD) Coolest Linux Workspace Contest" was sent all the way from the Netherlands by a digital forensics student named Huseyin. He is also working as an intern at an IT-audit company and described Linux as the best OS to do research on."

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  • Digital Darwinism: How Brands Can Survive the Rapid Evolution of Society and Technology

    - by Michael Hylton
    Do you want to learn how to thrive in an era of connected consumerism and digital disruptions? Come attend this free webinar on December 13th at 10:00 am PST / 1:00 pm EST as Brian Solis, Altimeter Group analyst, shares his thoughts on how our changing society and technology shifts are impacting brands today. Click here to register for this webcast, part of Oracle’s Social Business Thought Leaders Series.

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  • The History of Digital Storage [Infographic]

    - by Jason Fitzpatrick
    From punch cards to hard drives to cloud based storage, how we stash our data away has changed quite a bit in the last century. Courtesy of Mashable, we have an infographic detailing the evolution of storage and comparing storage size, speed, and prices over the decades. Hit up the link below for a higher resolution image. The History of Digital Storage [Mashable] How To Create a Customized Windows 7 Installation Disc With Integrated Updates How to Get Pro Features in Windows Home Versions with Third Party Tools HTG Explains: Is ReadyBoost Worth Using?

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  • Digital "Post It" notes for organizing content of sites/pages

    - by Alex
    We're restructuring our old intranet into a new one and are going through each site to find content and use our new standard structure/look-and-feel. Do you recommend a tool where you can do "digital Post-It" notes? It would provide a way to type some items on a "card" and be able to move it around and organize it quickly. Also, if you know of tools in general for this kind of task, please advise. Thank you.

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  • FocusOPEN Digital Asset Manager

    - by csharp-source.net
    FocusOPEN is a free and open source ASP.NET Digital Asset Management system written in C# and SQL Server (T-SQL). It includes a number of enterprise class features such as a dedicated media processing server, multi-brand support, flexible configurable metadata, faceted and filtered search interfaces (as well as full text indexing) and sophisticated security and user access roles. FocusOPEN is available with an AGPL and Commercial licence.

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  • SEO & Digital Marketing - Social Media Intangibles

    'Social Media' is certainly one of the most often used, yet least understood terms in the marketing space. In terms of purely defining the term, Social Media can be defined as communications among people in the digital space. These communications typically involve the exchange of ideas, experiences, information and insight, along with various media such as images and videos.

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  • Secrets of Creating a Digital Marketing System For a Financial Management Firm

    A Financial Management firm can create a strong web presence by designing and developing a business website on the internet. However, this step alone is not a digital marketing plan. Just putting up a Financial Management firm website on the internet is similar to establishing a physical business like a shop or an office, and then just sitting back and waiting for the customers to flow in. More than likely, it will not happen and your website will resemble a billboard in the desert.

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  • How to digitally sign a message with M2Crypto using the keys within a DER format certificate

    - by Pablo Santos
    Hi everyone. I am working on a project to implement digital signatures of outgoing messages and decided to use M2Crypto for that. I have a certificate (in DER format) from which I extract the keys to sign the message. For some reason I keep getting an ugly segmentation fault error when I call the "sign_update" method. Given the previous examples I have read here, I am clearly missing something. Here is the example I am working on: from M2Crypto.X509 import * cert = load_cert( 'certificate.cer', format=0 ) Pub_key = cert.get_pubkey() Pub_key.reset_context(md='sha1') Pub_key.sign_init() Pub_key.sign_update( "This should be good." ) print Pub_key.sign_final() Thanks in advance for the help, Pablo

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