LM And MD5 Hash Safety And Cracking

LM And MD5 Hash Safety And Cracking

On this paper I'll focus on Encryption and learn how to Crack encrypted hashes with out the decryption key. Let’s begin with a proof or the concept behind encryption. Encryption is used to secure or disguise information from unauthorized personal and has been around from about 1800 BC and isn't going away. There may be always going to be a have to secure knowledge and keep it out of unauthorized hands. Now with that said there is always going to be new methods to break the encryption and with computers getting faster. Crackers will learn to break the encryption quicker than ever. We're going to look at encryption algorithms for passwords LM & MD5.

LAN Man Hash (LM)

LAN Man Hash (LM) is a Microsoft Encryption Algorithm used to Encrypt Passwords for Windows NT, ninety five, ninety eight, ME 2000, XP, and 2003 Server. All though within the latest versions of windows (XP, 2003, Vista) Microsoft has now switched to NTLM for most encryption however LM is still extensively used. LM is made by taking the customers password and changing it to all uppercase and them splitting the password into seven character halves. Every seven character half is transformed to a sixteen bit hash and them each half’s are combined to make a thirty-two bit hash witch is the complete LM Hash.

LM Hash Example:

ED39C160E34521DCBF02B3DFE230653A = CERT276ROSENVA

ED39C160E34521DC BF02B3DFE230653A = CERT276 ROSENVA

1st 7 upper Encrypted 2nd 7 Upper encrypted pass

^ pass^

Message Digest 5 (md5 online decryption)

MD5 hash is a 128-bit (sixteen-byte) hash and are typically represented as 32-digit hexadecimal numbers. The MD5 (Message-Digest algorithm 5) was designed by Ronald Rivest in 1991 and was made to switch old algorithms. As we speak the MD5 hash is extensively used and for the most half is secure. The most effective factor to recollect is that with any password it's good to make it complex and long. The perfect passwords are 15 characters or longer containing each upper and lower case letter with numbers and other particular characters too.

MD5 Hash Example:

16d2c02aad8d116bc403f73454a5eeb1 = emocan

32-Digit Hash pass^

Cracking Password Hashes

Cracking password hashes could be easy if you have time and patience. What I imply by that is that with most elementary cracking strategies you might be running the hash thought a dictionary and hoping the password is within the dictionary you're using. This may take time and you might be just shooting the hash right into a list. The opposite most common cracking method is to make use of Burteforce cracking. Burteforce cracking is the technique of throwing all doable characters on the password until you find the match. This is essentially the most time consuming methodology of cracking and may take years to crack a posh password. The final method we will discus is Rainbow Crack. Rainbow Crack is a Hash cracking utility made by Zhu Shuanglei. Zhu’s Utility is predicated on Philippe Oechslin's faster time-memory trade-off technique. Rainbow Crack is a pre-compulated Burteforce attack and the assault data is stored in an information base called a rainbow table. With Rainbow Tables it's potential to crack complex passwords one hundred’s or 1,000’s of time quick them with an ordinary Burteforce attack. The downside to rainbow tables is that it takes a number of time to make the tables sets. On the other side of this as soon as a table set is made it may be saved and reused as many time as you need. To make the tables you need rcrak.exe and it is reconvened to have a group or massive number of computer systems available to make the tables. There are numerous places online theses days selling table sets or memberships to used online tables submission services.

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