LM And MD5 Hash Security And Cracking
On this paper I'll discuss Encryption and easy methods to Crack encrypted hashes with out the decryption key. Let’s start with an explanation or the concept behind encryption. Encryption is used to safe or sha1 decrypt hide data from unauthorized personal and has been round from about 1800 BC and isn't going away. There may be all the time going to be a have to safe data and maintain it out of unauthorized hands. Now with that mentioned there is at all times going to be new methods to break the encryption and with computer systems getting faster. Crackers will learn how to break the encryption faster than ever. We are going to look at two 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 although within the latest versions of windows (XP, 2003, Vista) Microsoft has now switched to NTLM for most encryption but LM continues to be widely used. LM is made by taking the users password and converting it to all uppercase and them splitting the password into two seven character halves. Each seven character half is converted to a sixteen bit hash and them each half’s are mixed to make a thirty-two bit hash witch is the whole LM Hash.

LM Hash Example:

ED39C160E34521DCBF02B3DFE230653A = CERT276ROSENVA

ED39C160E34521DC BF02B3DFE230653A = CERT276 ROSENVA

1st 7 higher Encrypted 2nd 7 Higher encrypted pass

^ pass^

Message Digest Five (MD5)

MD5 hash is a 128-bit (16-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 replace old algorithms. Today the MD5 hash is widely used and for probably the most half is secure. The most effective thing to recollect is that with any password it is advisable to make it advanced and long. The best passwords are 15 characters or longer containing both upper and lower case letter with numbers and other particular characters too.

MD5 Hash Instance:

16d2c02aad8d116bc403f73454a5eeb1 = emocan

32-Digit Hash pass^

Cracking Password Hashes

Cracking password hashes might be easy in case you have time and patience. What I mean by this is that with most elementary cracking methods you might be running the hash thought a dictionary and hoping the password is in the dictionary you might be using. This may take time and you are just shooting the hash into a list. The opposite most typical cracking approach is to use Burteforce cracking. Burteforce cracking is the technique of throwing all doable characters at the password until you find the match. That is essentially the most time consuming methodology of cracking and might take years to crack a posh password. The final technique we'll discus is Rainbow Crack. Rainbow Crack is a Hash cracking utility made by Zhu Shuanglei. Zhu’s Utility relies on Philippe Oechslin's faster time-memory trade-off technique. Rainbow Crack is a pre-compulated Burteforce assault and the assault knowledge is stored in an information base called a rainbow table. With Rainbow Tables it's possible to crack complicated passwords one hundred’s or 1,000’s of time fast them with a typical Burteforce attack. The downside to rainbow tables is that it takes a variety of time to make the tables sets. On the other side of this as soon as a table set is made it can 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 giant number of computer systems available to make the tables. There are various places online theses days selling table sets or memberships to used on-line tables submission services.

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