Can MD5 be decrypted ? |
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January 17, 2008, 05:41:55 AM
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Can a message encrypted with MD5 be decrypted ?
I am using some MD5 function to encrypt my imp data. Is it possible to decrupt it again by any hacker ?
Edited to fix title spelling
« Last Edit: January 02, 2009, 11:30:46 AM by polas »
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February 04, 2008, 10:28:07 AM
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February 07, 2008, 09:01:20 AM
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How MD5 can be decrypted and can we prevent it ?
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February 07, 2008, 01:40:19 PM
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If you click on the 'Yes' I posted it links you to a decoding website.
The website works on having a database of alpha numeric passwords and their MD5 equivalents. If you have a totally random password such as "sdhfj213" then no one else would have it - therefore no MD5 equivalent would be available.
If it's other people's passwords, all I can suggest is not to have any chance of the database being stolen or copied.
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February 12, 2008, 09:26:36 AM
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Thanks for your reply.
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February 26, 2008, 04:03:09 AM
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Besides these databases there are other ways of breaking MD5 hashes.
One way would be to Brute-Force it.
Basicly you give the allowed characters to a program and it compares the MD5 hash of every single combination to the hash you gave it.
This is where the password strenght comes into play.
A passwords strenght is depending on two things.
The length and the variety of characters (including capitalisation and stuff like that).
If you have a password with over 8 characters including uppercase letters, lower case letters, numbers and special characters it would give millions of possible combinations and take the Brute-Force program several thousand years to find the right combination.
If you however have six numbers only it will take a few minutes.
So the best way to protect your users data is of course not to let anyone in the database and secondly you can encourage users to have a strong password.
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April 13, 2008, 06:45:08 AM
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anything can be decrypted given enough time
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August 23, 2008, 02:55:15 AM
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i dont think so personally. this is a one way harsh which mean it it is a one way street, you can only go and you can't come back. so you can't decrypt it.
However, you may break the password using like other said: brute force attack BUT not decrypt it!
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September 06, 2008, 12:18:12 PM
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yes it can be decrypted by hackers and non-hackers , google is your friend in this , it can help you find plenty of sites offering this service i personnaly got the opportunity to download before weeks an MD5 decryptor script, then i deleted it here is an example site that can decrypt MD5 : http://md5decryption.com/
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January 02, 2009, 11:00:31 AM
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What is important is the life time of data - it all depends on how long it takes to decrypt the data. For instance, if it takes 200 years to decrypt data then its probably not of much use. This means that, although many encryption algotrithms are not perfect, it in essence does not really matter
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November 02, 2010, 03:43:35 AM
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I don't think so since md5 is a one way hash. It is the reason why most administrators reset passwords directly if you forget it.
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May 31, 2011, 02:26:55 AM
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yes MD5 is decrypted.............
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July 13, 2011, 05:33:03 AM
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Thing is i dont use any bruteforcing method, or some "stored words db". My method is 100% guranteed and i can win a nobel prize for this.
Try giving me some md5 hash and i will decrypt it.
fx The password sad encrypted with the MD5 hash gives:
49f0bad299687c62334182178bfd75d8
So I can reverse that above cycle to sad.
Try giving me some hashes.
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July 13, 2011, 05:33:57 AM
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Thing is i dont use any bruteforcing method, or some "stored words db". My method is 100% guranteed and i can win a nobel prize for this.
Try giving me some md5 hash and i will decrypt it.
fx The password sad encrypted with the MD5 hash gives:
49f0bad299687c62334182178bfd75d8
So I can reverse that above cycle to sad.
Try giving me some hashes.
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July 24, 2011, 11:49:27 PM
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Yes md5 may be decrypted. But i don't no how to do it, I have just heard about it that md5 may be decrypted but i don't know how to do it.
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August 08, 2011, 11:31:30 PM
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had been working on this for years and finally i can do it.
Thing is i dont use any bruteforcing method, or some "stored words db". My method is 100% guranteed and i can win a nobel prize for this.
Try giving me some md5 hash and i will decrypt it.
fx The password sad encrypted with the MD5 hash gives:
49f0bad299687c62334182178bfd75d8
So I can reverse that above cycle to sad.
Try giving me some hashes.
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September 19, 2011, 07:26:43 AM
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If you're THAT confident, I'll believe you. Now i have a question:
Isn't it possible to create an encryption algorithm that cannot be decrypted to a unique string? ever?
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September 21, 2011, 09:29:53 AM
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Can we access MDS without obtaining password?
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September 21, 2011, 06:31:40 PM
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I don't think so since md5 is a one way hash. It is the reason why most administrators reset passwords directly if you forget it.
Ah, That answers my question. My bad for not reading through it.
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November 04, 2011, 11:15:22 PM
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I dont think so we can get MDS without gaining Password.
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Biz
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November 14, 2011, 04:48:30 AM
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Yes it is possibility to hack
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