## Об TIGER128,4 хэш

Tiger128,4 is a cryptographic hash function from the Tiger family, which produces a fixed-size hash of 128 bits (16 bytes). The "4" in Tiger128,4 refers to the number of passes (iterations) the algorithm performs on the input data during hashing.

### Key Characteristics of Tiger128,4:

**Output Size**: 128 bits (16 bytes).**Passes**: Tiger128,4 performs 4 passes (iterations) on the input data during hashing. This iterative approach aims to enhance the security and strength of the hash function.**Algorithm**: Tiger hash functions utilize a stream cipher methodology, involving multiple rounds of mixing operations (passes), which helps in generating the final hash value.**Usage**: Tiger128,4 can be used in applications where a 128-bit hash is adequate for tasks such as data integrity verification, password hashing (though more modern algorithms like bcrypt or Argon2 are generally recommended for passwords), and cryptographic checksums.

### Example Implementation in Python:

To compute the Tiger128,4 hash of a string in Python, you would typically use a library or an implementation that supports Tiger hashing. Here's an example using a hypothetical `tiger`

library (note that such a library would need to be sourced or implemented separately):

```
import tiger
def tiger128_4_hash(data):
# Assuming a hypothetical 'tiger' library with Tiger128,4 implementation
hash_value = tiger.hash128_4(data.encode('utf-8'))
return hash_value
# Example usage
input_data = "Hello, World!"
hash_value = tiger128_4_hash(input_data)
print(f"Tiger128,4 hash for '{input_data}': {hash_value}")
```

### Conclusion:

Tiger128,4 is suitable for applications that require a 128-bit hash output and benefit from the iterative approach of Tiger hashing. It offers moderate cryptographic security for tasks where this hash length is sufficient, though its usage might be less common compared to more widely adopted hash functions like SHA-256 or SHA-512.