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What hash algorithm is used in NTLM?
NTLM (NT LAN Manager) uses the MD4 hash algorithm for hashing passwords. When a user sets a password, NTLM computes an MD4 hash of the UTF-16LE encoded password. This hash is then stored in the Security Account Manager (SAM) database. However, due to its vulnerabilities, NTLM is considered weak and has largely been replaced by more secure authentication protocols like Kerberos.
What hash algorithim is used by common implementations of CHAP?
Common implementations of the Challenge Handshake Authentication Protocol (CHAP) typically use the MD5 hash algorithm. CHAP uses a challenge-response mechanism where a server sends a challenge to the client, which then computes a hash of the challenge and its password to respond. Although MD5 is widely used, it is considered less secure by modern standards, and more secure alternatives are recommended for sensitive applications.
What is a hash function?
hash function is technique used in message authentication it is attached to the message for security purpose
What hash algorithm is used by common implementaions of Chap?
MD5
What is the most common form of authentication used?
The most common form of authentication used is username and password authentication. Users are required to enter a unique username and a corresponding password to access their accounts or systems.
How many bits are used in these algorithms hash values?
The number of bits used in hash values varies by algorithm. For example, the MD5 algorithm produces a 128-bit hash, SHA-1 generates a 160-bit hash, and SHA-256 outputs a 256-bit hash. Each algorithm is designed to provide a different level of security and collision resistance, with longer hashes generally offering greater security.
What is algprithm that Linux is used to decode the password?
This really depends on which password you mean. Most user passwords aren't so much decoded as they are hashed through alorithms such as MD5 and the result compared to a stored hash for the password. If the hashes match, Linux concludes the password is correct. Passwords are done this way as checksum hashes can't be reversed. They are assymetrical, meaning running a hash through the same algorithm merely results in another hash, not the password. This is a very secure way to store passwords.
Which hash algorithm is commonly used in networking protocols and systems?
SHA-1
Which two algorithm are used for hash encoding to guarantee the ingerity of data?
MD5 and SHA
What is the highest level of security during login?
During login to any account authentication is used. In authentication the user password is matched with the password in the database.
Is the password database used for authentication always located on the local computer?
no
What data type is suitable for password field?
We never store passwords in a password field. If we did that, anyone with access to the database would have access to all the passwords. Instead, we store the output from a one-way cryptographic hashing function. That is, when a user creates a password, we store the hash value generated from that password via the hashing function. When the user subsequently enters their password in order to log on, the hash value generated by the entered password is compared with the stored hash value. If the two hash values match exactly then the correct password was entered. Being one-way, it is not possible to determine the password from the hash value, even if we know the precise implementation details of the hash function employed to create the hash value. This is the safest way to store passwords; we simply need to ensure that the same hash function that was used to generate the hash is also used to validate the user's password at logon. Cryptographic hashes can vary in length depending on which function was used to generate the hash value. Typical values are 128-bit, 160-bit, 256-bit and 512-bit, thus a fixed-length binary field of the required length would be suitable for storing the hash values.
