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3DES</p>-</p>CryptoDox

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class="firstHeading">3DES

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CryptoDox,

The

Online

Encyclopedia

on

Cryptography

and

Information

Security

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Triple

DES

or

3DES

is

a

minor

variation

of

href="DES"

title="DES">DES.

Three

64-bit

keys

are

used

instead

of

one,

for

an

overall

key

length

of

192

bits

(the

first

encryption

is

encrypted

with

second

key,

and

the

resulting

cipher

text

is

again

encrypted

with

a

third

key).

It

is

also

three

times

slower

than

regular

DES

but

can

be

more

secure

if

used

properly.

Triple

DES

enjoys

much

wider

use

than

DES

because

DES

is

so

easy

to

break

with

today's

rapidly

advancing

technology.

Triple

DES

was

the

answer

to

many

of

the

shortcomings

of

DES.

Since

it

is

based

on

the

DES

algorithm,

it

is

very

easy

to

modify

existing

software

to

use

Triple

DES.

It

also

has

the

advantage

of

proven

reliability

and

a

longer

key

length

that

eliminates

many

of

the

shortcut

attacks

that

can

be

used

to

reduce

the

amount

of

time

it

takes

to

break

DES.

class="mw-headline"

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Also

  • href="DES"

    title="DES">DES
  • href="Private-key_Cryptography"

    title="Private-key

    Cryptography"

    class="mw-redirect">Private-key

    Cryptography

class="mw-headline"

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    text"

    href="http://en.wikipedia.org/wiki/3DES">3DES

    at

    Wikipedia

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