First message block becomes an input to the second hast operation
Avalanche effect of hashing
Different hash values for two messages
Avalanche effect
Is a process for using the hash function
Hashing algorithm
Schematic of hashing algorithm illustration
If a hash function is collision resistant then it is?
second pre-image resistance
This property makes it very difficult for an attacker to find two input values
Collision resistance
Collision resistance is also called?
Collision free hash function
This property means it should be hard to find two different inputs
Collision resistance
This property means it’s should be hard to find a different input with the same hash
Second pre
This property protects against attacker who has an input value and its hash
Second pre
This property means it should be computationally hard to reverse
Pre-image
This property protects against an attacker who only has a hash value
Pre-image
What are the properties of hash function
Converts data of arbitary length
Hash function
Hash function converts data to arbitrary length to a fixed length this process is called?
Hashing the data
The hash is much smaller than the input data; hence hash functions are sometimes called?
Compression function
Hash is a smaller representation of larger data it is also referred to as?
Digest
Hash function with n bit output is called?
N-bit hash function
Features of hash function
Most common application of hash function
data integrity check
Used to generate checksums on data files
Data integrity check
Consist of table pairs
Password file
Applications of hash function
Passwords storage
Data integrity check
Three versions of whirlpool
