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Move Your Certificates Away from SHA1

Certificates and PKI using SHA-1 are being deprecated

Andrew Walman

18/02/2016

​SHA-1 is the most commonly used hash function for certificates on the internet, and many internal root certificate servers. If your in-house certificate authority has been around since Windows 2003, it's likely it too uses the now insecure SHA-1. Since 2013, Microsoft have been deprecating use of SHA1 certificates within Windows, and from 1st January 2017, all supported versions of Windows will not accept any SHA-1 certificates. Payment processors have already announced they won't deal with SHA-1 from the summer too.

fuse-cert.PNG

A Certificate with SHA-2

The certificate shown above is using the SHA384 signature algorithm, and so is it's root certificate - ensuring it will be accepted by all browsers without warnings through 2017.

At Fuse, we can help you transtition your certificate servers to the latest standards, ensuring your certificates use stronger encryption without breaking your existing systems and preventing access. We can also assist with installing the new certificates onto devices such as VPN gateways, web servers, laptops and phones, and with code/email signing and encryption certificates for files and backups. At the same time, we can harden your Windows Server TLS/SSL protocols so they only support newer protocols and ciphers. You can engage us within the context of a PKI project, or simply on a time and materials/consultancy basis. Either we'll ensure your infrastucture remains secure and compliant in a critical year for PKI.


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Fuse Collaboration Services is a Cloud Solution Provider and Microsoft Gold Partner specialising in delivering SharePoint, Skype for Business, and Azure cloud-based solutions. Based in Northampton, UK.

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New GDPR Analysis Pricing699<p class="lead">​​​Fuse can ease the challenge you are facing with the GDPR by offering a solution that will analyse your data for you quickly and cost effectively.</p><div></div><p>​My <a href="/_layouts/15/FIXUPREDIRECT.ASPX?WebId=4fc45909-2b6d-48b9-bcf9-a446e9d472d6&amp;TermSetId=c98895cd-d37f-4406-9cff-5480b4f829b6&amp;TermId=2b6bb279-9fd6-44bf-b4e7-23100b1f156a">recent blogs​</a> have already mentioned the effect that GDPR is having on UK businesses. The deadline is looming but <strong>don’t panic</strong> if you feel you are running out of time as we have <strong>important news</strong>. </p><p>Our customers are reporting that they are having many calls in response to the GDPR, offering you solutions to help but what you really need is a quick, fixed price solution that you know will do what it claims to. 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We are available to answer any queries you have and our aim is to work alongside your needs and priorities ensuring optimum efficiency of your IT infrastructure.</p></div>l.ozier@fusecollaboration.com | Louise Ozier | 693A30232E777C6675736563735C6C2E6F7A696572 i:0#.w|fusecs\l.ozier22/11/2017 00:00:002017-11-22T00:00:00ZDiscover Personal Identifiable Information & Sensitive information within Documents24/11/2017 23:55:4096htmlFalseaspx

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