Digital Signature
- Non-repudiation
- Authentication
- Integrity
- First, hash the email/message
- Second, the private key digitally signs (encrypts) the hash
This blog is here to help those preparing for CompTIA exams. This is designed to help the exam candidate to understand the concepts, rather than trust a brain dump. CHECK OUT THE BLOG INDEXES!!!
A digitizer is a device that allows users to input drawings,
sketches, and handwritten notes into a computer. It's also a graphics
tablet, drawing tablet, or pen tablet.
A digitizer has a pressure-sensitive flat surface and
a stylus or pen-like instrument that users draw or write with. The digitizer's
sensors detect the stylus's movements and pressure levels and send the data to
the computer. The computer then processes the data and translates it into
visual elements on the screen.
Digitizers are used for many purposes, including:
On a laptop, a touchscreen digitizer is an additional screen
that sits on top of the laptop's LCD screen. There are two types of touchscreen
laptops:
Secure/Multipurpose Internet Mail Extensions (S/MIME) is
an industry standard that encrypts and digitally signs emails to ensure their
integrity and security:
S/MIME is compatible with most enterprise email clients,
including Outlook for iOS and Android. To add or remove a digital signature
from a message in Outlook on the web, you can: