Adding ELFHash Algorithm (#6731)

* Adding ELFHash Algorithm

Adding a new Hash Algorithm.

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* Update elf.py

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* Update elf.py

* Update elf.py

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* Update elf.py

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Co-authored-by: Caeden <[email protected]>

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Caeden <[email protected]>

Author: 3 people

hashes/elf.py

@@ -0,0 +1,23 @@
+def elf_hash(data: str) -> int:
+    """
+    Implementation of ElfHash Algorithm, a variant of PJW hash function.
+
+    Returns:
+        [int] -- [32 bit binary int]
+    >>> elf_hash('lorem ipsum')
+    253956621
+    """
+    hash = x = 0
+    for letter in data:
+        hash = (hash << 4) + ord(letter)
+        x = hash & 0xF0000000
+        if x != 0:
+            hash ^= x >> 24
+        hash &= ~x
+    return hash
+
+
+if __name__ == "__main__":
+    import doctest
+
+    doctest.testmod()