Added .crc32() term under binascii module

content/python/concepts/binascii-module/terms/crc32/crc32.md

@@ -0,0 +1,72 @@
+---
+Title: '.crc32()'
+Description: 'Computes the CRC-32 checksum of binary data using a cyclic redundancy check algorithm.'
+Subjects:
+  - 'Computer Science'
+  - 'Data Science'
+Tags:
+  - 'Encoding'
+  - 'Error Handling'
+  - 'Functions'
+CatalogContent:
+  - 'learn-python-3'
+  - 'paths/computer-science'
+---
+
+The **`.crc32()`** function computes a CRC-32 checksum of the given data using a cyclic redundancy check algorithm. It is commonly used to detect accidental changes in raw data.
+
+## Syntax
+
+```pseudo
+binascii.crc32(data, value=0)
+```
+
+**Parameters:**
+
+- `data`: A bytes-like object containing the binary data whose CRC-32 checksum is to be computed.
+- `value` (optional): An initial CRC value. This can be used to compute cumulative CRCs across multiple data blocks. Default is `0`.
+
+**Return value:**
+
+Returns an integer representing the CRC-32 checksum of the input data.
+
+## Example
+
+In this example, the CRC-32 checksum of a single string of binary data is computed:
+
+```py
+import binascii
+
+# Create binary data
+binary_data = b"hello world"
+
+# Compute the CRC-32 checksum
+checksum = binascii.crc32(binary_data)
+
+print(checksum)
+```
+
+This produces the following output :
+
+```shell
+222957957
+```
+
+The output value is an unsigned 32-bit integer representing the checksum of the input data.
+
+## Codebyte Example
+
+In this example, the CRC-32 checksum is computed incrementally for multiple chunks of data, simulating a real-world file integrity check:
+
+```codebyte/python
+import binascii
+
+chunks = [b"Hello ", b"World!", b" CRC32"]
+crc = 0  # initial CRC
+
+# Compute CRC incrementally
+for chunk in chunks:
+  crc = binascii.crc32(chunk, crc)
+
+print("Incremental CRC-32 Checksum:", crc)
+```