The difference between SSL & TLS

Answered Question
Jan 21st, 2010

dear experts,

i need to know The difference between SSL & TLS and in which situations i should i have to use them.

thanks

Labib Makar

I have this problem too.
0 votes
Correct Answer by Steven Ochmanski about 6 years 10 months ago

Labib,

At a 10,000 foot level v3.0 was superceded by . v1.0.

TLSv1.0 (RFC 4346) was an upgrade to SSL v3.0 (but they don't interoperate)

This "Cisco.com document" describes the workings of both in some detail:  SSL: Foundation for Web Security

it states this as some basic differences:

...

TLS uses slightly different cryptographic algorithms for such things as the MAC function generation of secret keys. TLS also includes more alert codes.

...

Also See: Wikipedia TLS

As far as which to use, it would depend on if both sides (server/client) support each?  TLS v1.0 or v1.1 is newer.

Most modern Browsers tend to support both.

i.e.

  • Firefox 3.5.7 supported both SSL v3.0 and TLS v1.0
  • Internet Explorer v6 supported both SSLv2, SSLv3, TLS v1.0
  • etc.

Hope that helps.

Steve Ochmanski

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Correct Answer
Steven Ochmanski Fri, 01/22/2010 - 11:58

Labib,

At a 10,000 foot level v3.0 was superceded by . v1.0.

TLSv1.0 (RFC 4346) was an upgrade to SSL v3.0 (but they don't interoperate)

This "Cisco.com document" describes the workings of both in some detail:  SSL: Foundation for Web Security

it states this as some basic differences:

...

TLS uses slightly different cryptographic algorithms for such things as the MAC function generation of secret keys. TLS also includes more alert codes.

...

Also See: Wikipedia TLS

As far as which to use, it would depend on if both sides (server/client) support each?  TLS v1.0 or v1.1 is newer.

Most modern Browsers tend to support both.

i.e.

  • Firefox 3.5.7 supported both SSL v3.0 and TLS v1.0
  • Internet Explorer v6 supported both SSLv2, SSLv3, TLS v1.0
  • etc.

Hope that helps.

Steve Ochmanski

ptamakuw Tue, 11/23/2010 - 10:23

Did you find proper answer of your question? I am still looking for right answer... and also what is the header difference between SSL and TLS ?

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