What function allows conversion md5 in text

Hello,

What function allows conversion md5 in text?

Thanks in advance

Thierry

Re: What function allows conversion md5 in text

What function reverse md5 result in original form?


"Ziggy" a écrit dans le message de news:
47510e9c$1$11771$426a74cc@news.free.fr...
> Hello,
>
> What function allows conversion md5 in text?
>
> Thanks in advance
>
> Thierry
>
>
>

Re: What function allows conversion md5 in text

Ziggy;106343 Wrote:
> Hello,
>
> What function allows conversion md5 in text?
>
> Thanks in advance
>
> Thierry

I am not sure I understand, MD5 returns a string

http://www.php.net/md5
string md5 ( string $str [, bool $raw_output ] )

What are you trying to do?

FFMG


--

'webmaster forum' (http://www.httppoint.com) | 'Free Blogs'
(http://www.journalhome.com/) | 'webmaster Directory'
(http://www.webhostshunter.com/)
'Recreation Vehicle insurance'
(http://www.insurance-owl.com/other/car_rec.php) | 'Free URL
redirection service' (http://urlkick.com/)
------------------------------------------------------------ ------------
FFMG's Profile: http://www.httppoint.com/member.php?userid=580
View this thread: http://www.httppoint.com/showthread.php?t=22775

Message Posted via the webmaster forum http://www.httppoint.com, (Ad revenue sharing).

Re: What function allows conversion md5 in text

Ziggy;106344 Wrote:
>
> "Ziggy" a écrit dans le message de
> news:
> 47510e9c$1$11771$426a74cc@news.free.fr...
> > Hello,
> >
> > What function allows conversion md5 in text?
> >
> > Thanks in advance
> >
> > Thierry
> >
> >
> >
>
> What function reverse md5 result in original form?
>

[top post fixed]

There are no functions to do that, (well they might be one or two but
1) they don't guaranty to be the same, original, form, 2) they can
takes days to run.

Otherwise what would be the point of MD5?

FFMG


--

'webmaster forum' (http://www.httppoint.com) | 'Free Blogs'
(http://www.journalhome.com/) | 'webmaster Directory'
(http://www.webhostshunter.com/)
'Recreation Vehicle insurance'
(http://www.insurance-owl.com/other/car_rec.php) | 'Free URL
redirection service' (http://urlkick.com/)
------------------------------------------------------------ ------------
FFMG's Profile: http://www.httppoint.com/member.php?userid=580
View this thread: http://www.httppoint.com/showthread.php?t=22775

Message Posted via the webmaster forum http://www.httppoint.com, (Ad revenue sharing).

Re: What function allows conversion md5 in text

Thank you for your answer, it was a translation error
I want reverse md5 result in original form but I think it's not possible.
"FFMG" a écrit dans le message de news:
FFMG.30wl2i@no-mx.httppoint.com...
>
> Ziggy;106343 Wrote:
>> Hello,
>>
>> What function allows conversion md5 in text?
>>
>> Thanks in advance
>>
>> Thierry
>
> I am not sure I understand, MD5 returns a string
>
> http://www.php.net/md5
> string md5 ( string $str [, bool $raw_output ] )
>
> What are you trying to do?
>
> FFMG
>
>
> --
>
> 'webmaster forum' (http://www.httppoint.com) | 'Free Blogs'
> (http://www.journalhome.com/) | 'webmaster Directory'
> (http://www.webhostshunter.com/)
> 'Recreation Vehicle insurance'
> (http://www.insurance-owl.com/other/car_rec.php) | 'Free URL
> redirection service' (http://urlkick.com/)
> ------------------------------------------------------------ ------------
> FFMG's Profile: http://www.httppoint.com/member.php?userid=580
> View this thread: http://www.httppoint.com/showthread.php?t=22775
>
> Message Posted via the webmaster forum http://www.httppoint.com, (Ad
> revenue sharing).
>

Re: What function allows conversion md5 in text

Ziggy;106351 Wrote:
>
> >
> > http://www.php.net/md5
> > string md5 ( string $str [, bool $raw_output ] )
> >
>
> Thank you for your answer, it was a translation error
> I want reverse md5 result in original form but I think it's not
> possible.
>
>

[top post fixed, again]

It is not possible. Otherwise MD5 would be useless.

FFMG


--

'webmaster forum' (http://www.httppoint.com) | 'Free Blogs'
(http://www.journalhome.com/) | 'webmaster Directory'
(http://www.webhostshunter.com/)
'Recreation Vehicle insurance'
(http://www.insurance-owl.com/other/car_rec.php) | 'Free URL
redirection service' (http://urlkick.com/)
------------------------------------------------------------ ------------
FFMG's Profile: http://www.httppoint.com/member.php?userid=580
View this thread: http://www.httppoint.com/showthread.php?t=22775

Message Posted via the webmaster forum http://www.httppoint.com, (Ad revenue sharing).

Re: What function allows conversion md5 in text

Hello,

Try Google
http://www.google.com/search?hl=en&q=md5+reverse

But as others have said, it is hard to derive the exact text

--
Singapore Web Design
http://www.bootstrike.com/Webdesign/
Singapore Web Hosting
http://www.bootstrike.com/WinXP/faq.html
Windows XP FAQ

"Ziggy" wrote in message
news:47510e9c$1$11771$426a74cc@news.free.fr...
> Hello,
>
> What function allows conversion md5 in text?
>
> Thanks in advance
>
> Thierry
>
>
>

Re: What function allows conversion md5 in text

Ziggy schrieb:
> Thank you for your answer, it was a translation error
> I want reverse md5 result in original form but I think it's not possible.

If the text is short then there MIGHT be a solution for your paticular
problem. There are MD5 databases that have really large lists of MD5
input/hash pairs indexed by hash values. Google for "md5 reverse". There
is a small chance to find your input if it was just some characters long.


OLLi

--
The publicity is worth its weight in clients!
[Laura Holt, RS]

Re: What function allows conversion md5 in text

Oliver Grätz wrote:
> Ziggy schrieb:
>> Thank you for your answer, it was a translation error
>> I want reverse md5 result in original form but I think it's not possible.
>
> If the text is short then there MIGHT be a solution for your paticular
> problem. There are MD5 databases that have really large lists of MD5
> input/hash pairs indexed by hash values. Google for "md5 reverse". There
> is a small chance to find your input if it was just some characters long.
>
>
> OLLi
>

Nope. There are a huge number of strings which can generate the same
MD5. Which one do you want?

Those MD5 databases are only good for duplicating a specific MD5 hash.
They can't tell you what the original was.

--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
jstucklex@attglobal.net
==================

Re: What function allows conversion md5 in text

Jerry Stuckle schrieb:
> Oliver Grätz wrote:
>> Ziggy schrieb:
>>> I want reverse md5 result in original form but I think it's not possi=
ble.
>> If the text is short then there MIGHT be a solution for your paticular=

>> problem. There are MD5 databases that have really large lists of MD5
>> input/hash pairs indexed by hash values. Google for "md5 reverse". The=
re
>> is a small chance to find your input if it was just some characters lo=
ng.
>=20
> Nope. There are a huge number of strings which can generate the same=20
> MD5. Which one do you want?
>=20
> Those MD5 databases are only good for duplicating a specific MD5 hash. =

> They can't tell you what the original was.

Ziggy didn't tell us for what application he needed to revert MD5. If it
was about password restoration, then reverse MD5 lookup databases ARE a
possible solution. I precisely narrowed the usability of my answer down
to "short strings" and "a small chance to find _your_ input".

OLLi

--=20
It's 106 miles to Chicago, we've got a full tank of gas,
half a pack of cigarettes, it's dark and we're wearing sunglasses.
[Blues Brothers]

Re: What function allows conversion md5 in text

Oliver Grätz wrote:
> Jerry Stuckle schrieb:
>> Oliver Grätz wrote:
>>> Ziggy schrieb:
>>>> I want reverse md5 result in original form but I think it's not possible.
>>> If the text is short then there MIGHT be a solution for your paticular
>>> problem. There are MD5 databases that have really large lists of MD5
>>> input/hash pairs indexed by hash values. Google for "md5 reverse". There
>>> is a small chance to find your input if it was just some characters long.
>> Nope. There are a huge number of strings which can generate the same
>> MD5. Which one do you want?
>>
>> Those MD5 databases are only good for duplicating a specific MD5 hash.
>> They can't tell you what the original was.
>
> Ziggy didn't tell us for what application he needed to revert MD5. If it
> was about password restoration, then reverse MD5 lookup databases ARE a
> possible solution. I precisely narrowed the usability of my answer down
> to "short strings" and "a small chance to find _your_ input".
>
> OLLi
>

And I still stand by my statement. They are not valid for finding an
original string. Even a string of 5 characters may have a duplicate
hash. And the longer you get, the more likely you are to have a
duplicate. Or a password of 'ksfjlksahoh3ndskjvcn' just might have the
same hash as 'abc', for instance.

There is no way you can tell what the original text was. But you can
find one or more values which will generate the same has as you have.

--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
jstucklex@attglobal.net
==================

Re: What function allows conversion md5 in text

Jerry Stuckle schrieb:
> And I still stand by my statement. They are not valid for finding an
> original string. Even a string of 5 characters may have a duplicate
> hash. And the longer you get, the more likely you are to have a
> duplicate. Or a password of 'ksfjlksahoh3ndskjvcn' just might have the
> same hash as 'abc', for instance.

No it might not, MD5 is not THAT unstable. You need 2.6 x 10^18 input
messages to achieve a collision probability of 1%. The collision
probability for *two* *short* inputs (that's BOTH of them being SHORT)
is EXTREMELY (no, really !) low. And, to use your example, I guess Ziggy
will recall if "ksfjlksahoh3ndskjvcn" or "abc" was his password or - if
he tried to recover the password for someone else, then that person will
be able to tell them apart. The other way round, if someone wants to
find an input to reproduce a certain hash in order to get into a system
where only the encoded password is known and cannot be changed, then ANY
of the inputs will work so IT DOESN'T MATTER if he gets "abc" or
"ksfjlksahoh3ndskjvcn" as an answer.

OLLi

--
Hoshi: "Shouldn't we try to help them?"
T'Pol: "They don't want our help."
Hoshi: "How do you know?"
T'Pol: "They're Klingons."
[Enterprise]

Re: What function allows conversion md5 in text

Greetings, Ziggy.
In reply to Your message dated Saturday, December 1, 2007, 11:20:42,

> Thank you for your answer, it was a translation error
> I want reverse md5 result in original form but I think it's not possible.

There is NO original form. MD5 is a checksum, not a chipher or something
other.

And PLEASE DO NOT top-post.


--
Sincerely Yours, AnrDaemon

Re: What function allows conversion md5 in text

Greetings, Jerry Stuckle.
In reply to Your message dated Saturday, December 1, 2007, 16:36:05,

> Nope. There are a huge number of strings which can generate the same
> MD5. Which one do you want?

Any, if that generates the needed MD5 hash.
/whispering: password



--
Sincerely Yours, AnrDaemon

Re: What function allows conversion md5 in text

Oliver Grätz wrote:
> Jerry Stuckle schrieb:
>> And I still stand by my statement. They are not valid for finding an
>> original string. Even a string of 5 characters may have a duplicate
>> hash. And the longer you get, the more likely you are to have a
>> duplicate. Or a password of 'ksfjlksahoh3ndskjvcn' just might have the
>> same hash as 'abc', for instance.
>
> No it might not, MD5 is not THAT unstable. You need 2.6 x 10^18 input
> messages to achieve a collision probability of 1%. The collision
> probability for *two* *short* inputs (that's BOTH of them being SHORT)
> is EXTREMELY (no, really !) low. And, to use your example, I guess Ziggy
> will recall if "ksfjlksahoh3ndskjvcn" or "abc" was his password or - if
> he tried to recover the password for someone else, then that person will
> be able to tell them apart. The other way round, if someone wants to
> find an input to reproduce a certain hash in order to get into a system
> where only the encoded password is known and cannot be changed, then ANY
> of the inputs will work so IT DOESN'T MATTER if he gets "abc" or
> "ksfjlksahoh3ndskjvcn" as an answer.
>
> OLLi
>

Extremely low is not the same as nonexistent. And I'm not sure where
you got that figure, but it's nowhere near the figures I've heard.

Also, while my example was meant to be very simple and obvious, the
password owner may not be able to tell which is is - at least if he's
using secure passwords.

And no, it doesn't matter which one the user uses to get into the
system. Which is why my comment that it is only useful for recreating
known hash values.

--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
jstucklex@attglobal.net
==================

Re: What function allows conversion md5 in text

Jerry Stuckle schrieb:
>> The other way round, if someone wants to
>> find an input to reproduce a certain hash in order to get into a system
>> where only the encoded password is known and cannot be changed, then ANY
>> of the inputs will work so IT DOESN'T MATTER if he gets "abc" or
>> "ksfjlksahoh3ndskjvcn" as an answer.
>
> And no, it doesn't matter which one the user uses to get into the
> system. Which is why my comment that it is only useful for recreating
> known hash values.

Then don't respond to ME who suggested the reverse lookup approach for
the already stated applications but to THE ORIGINAL POSTER.

OLLi

--
"It's another simulation gone mad, so... murder and mayhem, standard
procedure."
[Futurama 401]

Re: What function allows conversion md5 in text

Oliver Grätz wrote:
> Jerry Stuckle schrieb:
>>> The other way round, if someone wants to
>>> find an input to reproduce a certain hash in order to get into a system
>>> where only the encoded password is known and cannot be changed, then ANY
>>> of the inputs will work so IT DOESN'T MATTER if he gets "abc" or
>>> "ksfjlksahoh3ndskjvcn" as an answer.
>> And no, it doesn't matter which one the user uses to get into the
>> system. Which is why my comment that it is only useful for recreating
>> known hash values.
>
> Then don't respond to ME who suggested the reverse lookup approach for
> the already stated applications but to THE ORIGINAL POSTER.
>
> OLLi
>

You're the one who suggested a reverse lookup was valid for recreating
the original values, not the poster. That's why I responded to you -
because it's not useful for that.

--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
jstucklex@attglobal.net
==================