Encryption
When accessing Online
Banking, Bank Statements, MasterCard
Statements or ScoreCard Rewards the privacy of communications between you (your
browser) and our servers is ensured via encryption.
Encryption scrambles messages exchanged between your browser
and the online server.
How Encryption Works
- When accessing one of our online services the sign-In
page displayed to your internet browser establishes a
secure session with the server.
- A secure session is established using
a protocol called Secure Sockets Layer (SSL) encryption.
This protocol requires the exchange of what are called
public and private keys.
- Keys are random numbers chosen for that session and
are only known between your browser and the server. Once
keys are exchanged, your browser will use the numbers
to scramble (encrypt) the messages sent
between your browser and our server.
- Both sides require the keys because they need to descramble
(decrypt) messages received. The SSL
protocol assures privacy, but also ensures no other website
can "impersonate" your financial institution's website,
nor alter information sent.
- To learn whether your browser is in secure
mode, look for the secured lock symbol at
the bottom right of your browser window.
- Also look out for the secure web server designation
that can be found at the beginning of the browser's address
bar - it should be "https://" rather
than just "http://". The extra "s" indicates
a secure server connection.
Encryption Level
For your protection, our servers require the browser to
connect at 128-bit encryption (versus the less-secure 40-bit
encryption). If your browser is unable to access the online
service in question, this will be because it does not support
at least 128-bit encryption.
To determine if your browser supports 128-bit
encryption
- Click "Help" in the toolbar of your Internet browser
- Click on "About [browser name]"
- A pop-up box or window will appear.
- For Internet Explorer: next to "Cipher strength" you
should see "128-bit"
- For Netscape: you should see "This version supports
high-grade (128-bit) security with RSA Public Key Cryptography"
If your browser does not support 128-bit
encryption, you must upgrade to continue to access the website's
secure pages. Please read below for specific browser information.
Firefox and Safari - Encryption levels
Both browsers recently designated as supported for use with DI
products, Firefox 1.0 and Safari 1.2, use strong 128-bit encryption
when accessing secure sites, to ensure safe and secure transmittal
of private data such as account and payment information.
Firefox and Safari - How end users can determine
which levels of encryption they have
Firefox - In Firefox, this option is not visible
until connected to a site. Negotiation occurs between the
client browser and the server at run-time. To view the
encryption level being used while connected to a specific
secure site, you can do the following:
- Click to the 'Tools' menu
- Select 'Page Info'
- Click the 'Security' tab
Or: double-click the yellow 'lock' icon
in the lower right corner of the screen while connected to
a secure site.
Safari - The Safari browser
displays a 'lock' icon at the top right corner of the browser
window when you're viewing a secure (https://) site. This
symbol is absent when viewing an unsecured (http://) site.
Safari can use both 40-bit and 128-bit "strong" encryption;
the website determines which level of encryption is used
at a given time.
Other browsers that support 128-bit encryption
also may work. More information on some common browsers is
available via these links:
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