3.1 Background
Subtopic
Electronic mail, commonly shortened to “email,” is a
communication method that uses electronic devices to deliver messages across
computer networks. "Email" refers to both the delivery system and
individual messages that are sent and received.
Email has existed in some form since the 1970s, when
programmer Ray Tomlinson created a way to transmit messages between computer
systems on the Advanced Research Projects Agency Network (ARPANET). Modern
forms of email became available for widespread public use with the development
of email client software (e.g. Outlook) and web browsers, the latter of which
enables users to send and receive messages over the Internet using web-based
email clients (e.g. Gmail).
Gmail is a free web-based email service provided by
Google. It allows users to send and receive e-mail over the Internet. It
provides 15 GB of storage which is shared across Gmail, Google Drive, and
Google Photos for each Google account. It also automatically organizes
successively related messages into a conversational thread. Gmail, otherwise
known as Google Mail, can be accessed from a personal computer, tablet or any
Android or iOS device easily with internet connection.
3.2
Installation and demo manual
From
Gmail website, click compose to write a new email.
Click
the “Confidential mode” icon below.
Set
the expiration date.
Click
Send Button to send email.
The
recipient can view the message before the expiration date expires.
Options
to copy, paste, download, print, and forward the message text and attachments
will be disabled.
3.3 CIA (Confidentiality, Integrity, and Availability)
Confidentiality
To access emails, users are required to input valid
email and password to login into Gmail. Besides, users can also enable 2-step
verification to strengthen authentication security, users will need to enter a
code that Google will send you via text or voice message upon signing in. This prevents
other people to access our own email. Besides, it can protect Gmail messages
with confidential mode. Confidential mode lets users set a message
expiration date, revoke message access at any time, require a verification code
by text to open messages. Confidential mode helps prevent
recipients from accidentally sharing messages. Confidential mode messages don't
have options to forward, copy, print, or download messages or attachments but it
can't prevent recipients from taking screenshots or photos of messages or
attachments. Recipients can also use malicious software applications to copy or
download messages and attachments.
Integrity
Gmail has two type of encryption which are TLS and S/MIME.
TLS
or Transport Layer Security as an industry standard for email encryption. When users
send an email, users’ browser contact’s Google’s server to establish a secure
connection. User’s message is encrypted (encoded) and then decrypted (decoded)
several times, passing through Google’s servers until it reaches user’s
recipient. S/MIME is end to end encryption but it does not apply to free
account. S/MIME encrypts all outgoing messages if we have the
recipient's public key. Only the recipient with the corresponding private key
can decrypt this message. This prevents encrypted email to be read and modify
by other people including email server Google.
Availability
Gmail is a web-based email service for every user. It is accessible in multiple platforms
including windows, IOS and Android anywhere, anytime with internet connection. Users
can read, respond to, and search Gmail messages even when users aren't
connected to the Internet. When users send emails offline, email goes into a new "Outbox"
folder and gets sent as soon as users go back online.
Comments
Post a Comment