Hash functions are used in many areas of computer science. They generate hash values that represent digital information in a consistent manner according to defined parameters. They provide additional security (using encryption) during data transmission and allow data to be accessed more quickly. We explain what hash functions are, how they are used and provide some examples.
The internet is not new territory for scammers: Scamming encompasses all tricks that criminals use online in chats, via mail, or over social networks, to get unsuspecting people to give them their money. The criminals play their victims through deceitful methods on almost every platform across the internet: They build up a relationship, and eventually, lead their victims to make advance money...
The “pathway to hell” – this is how Eran Hammer-Lahav once called the security protocol OAuth 2.0, on which he himself had worked for years. Others, however, use the service without issue. It enables users to use data and functions across multiple platforms in multiple services – for example, with the convenient single sign-on – using secure API authorisation. But how exactly does OAuth2 work and...
Passwords are not an ideal way to surf the World Wide Web safely. They are either so complex that they are hard to remember, or so simple that they can be guessed in next to no time. FIDO2 takes a different approach and relies on modern technology. The open standard has the potential to make surfing the net safer and more convenient at the same time.
Organisations restrict access permissions in systems to protect sensitive data from unauthorised access and modification. However, assigning access permissions to users individually is a high-maintenance and error-prone process. In the case of role-based access control (RBAC), permissions are assigned based on previously assigned roles. Here, we explain how role-based access control works.
Quick UDP Internet Connections (QUIC for short), is an experimental network protocol from Google. Further development of the protocol is being driven by IETF, which has set up a dedicated group working towards it. The QUIC protocol is intended to offer a speed-optimized alternative to the current transport standard TCP and builds on the connectionless protocol UDP to achieve this.
Current web browsers are increasingly refusing to accept unencrypted websites and insist that the encrypted version of the Hypertext Transfer Protocol (i.e. HTTPS) be used. Why is this important? What is actually encrypted? What information can my browser provide me with about this? Here you will find the answers to these questions.
Simplifying log-in processes makes websites more user friendly, and also helps to increase the security of user data. One of the most popular solutions for implementing authentication processes is SAML (security assertion mark-up language). Through a variety of components such as special protocols and message formats, this XML-based framework helps to implement internal and cross-company log-on...
Passwords have long ceased to offer sufficient protection when surfing the internet: They are easy to crack, easily tapped, and difficult to remember. Together with the FIDO Alliance, the World Wide Web Consortium has developed a new standard. WebAuthn is intended to make logging into social media or online shopping portals easier and safer. How does it work?
Spoofing attacks encompass a wide range of potential attack scenarios. Besides conventional approaches like IP spoofing and DNS spoofing, they also include particularly dangerous phishing attacks. Read this article to find out how spoofing attacks work and what measures you can take to protect yourself effectively.
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