[edward]

and tips and programs? i am here to learn thank you

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[Beast99]

MD5, SHA- 1 (widely used, has proven to be vulnerable to collision attacks), LM Hashes, NTLM Hashes (they are somewhat stronger than LM Hashes, but can still be cracked with the right tools and techniques).

Tips:
1. Understand the basics of hash algorithms and how they work.
2. Learn about different cracking techniques such as brute force attacks, dictionary attacks and rainbow table attacks.
3. Become familiar with common password patterns and lists.

Programs:
the well-known Hashcat, John the Ripper, Cain and Abel.

I hope it helps you, good luck!

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[TuringMizar]

MD5 and SHA-1 are easiest to crack, especially if they are not salted. Use Hashcat for cracking

[5kidw4rd]

MD5 and SHA-1 are easiest to crack, especially if they are not salted. Use Hashcat for cracking

Came here to say the same thing so, yes...this is the correct answer

[Darth_Vader]

Yeah, MD5 and SHA-1 definitely.

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[neoco284]

thanks for the explanation

[H4rDw4Y]

and tips and programs? i am here to learn thank you

I'm going to say the same thing as the others but provide some clarification: 

MD5 and SHA1 are considered less secure and easier to crack for several reasons, including their susceptibility to collision attacks and the high speed at which hash values can be generated and compared.

Both MD5 and SHA1 have been proven vulnerable to collision attacks. A collision occurs when two different inputs produce the same output hash. This vulnerability undermines the integrity of these hashing algorithms, as it should be computationally infeasible to find two distinct inputs with the same output and the algorithms were designed for speed to efficiently create hash values for large amounts of data. However, this feature becomes a drawback in the context of password hashing, as it allows attackers to attempt billions of guesses per second with modern hardware, including GPUs and specialized hardware like FPGAs and ASICs.

Below are examples of how to use Hashcat for cracking MD5 and SHA1 hashes :

- Dictionary Attack ( remember that spear dictionnary are the best you can use CUPP for generating good spear dictionnary)

    MD5: hashcat -m 0 -a 0 <hashfile> <dictionary>
    SHA1: hashcat -m 100 -a 0 <hashfile> <dictionary>

Where <hashfile> is the file containing the target hash(es) and <dictionary> is the file containing potential password candidates.

- Mask Attack ( remember that the PC is limited in number possible to count, so you can crack a password of 40 characters.)

    MD5: hashcat -m 0 -a 3 <hashfile> ?d?d?d?d?d?d
    SHA1: hashcat -m 100 -a 3 <hashfile> ?d?d?d?d?d?d

In the mask ?d?d?d?d?d?d, ?d represents a digit (0-9), and the mask specifies a six-digit password. 


You can customize the mask according to the complexity of the password you are attempting to crack, using ?l for lowercase letters, ?u for uppercase letters, ?d for digits, and ?s for special characters.

Additional Options:
    -m: Specifies the hash type. 0 for MD5, 100 for SHA1.
    -a: Specifies the attack mode. 0 for dictionary attack, 3 for mask attack.


hoping this enlightens some people