Data Integrity Checker
Calculate and verify data integrity using CRC32, Adler-32, and other checksum algorithms
Input Text
Verify Checksum
Compare a known checksum with calculated values
About Checksums
CRC32
Cyclic Redundancy Check with 32-bit output. Widely used in networking (Ethernet, ZIP files) for error detection. Provides good error detection for random errors.
Adler-32
Faster than CRC32 but slightly less reliable. Used in zlib compression library. Good balance between speed and error detection for data integrity.
CRC16
16-bit CRC commonly used in embedded systems and serial communications. Smaller size makes it suitable for resource-constrained environments.
Checksum vs Hash
Checksums are designed for error detection, not security. Unlike cryptographic hashes (SHA, MD5), checksums are not collision-resistant and should not be used for security purposes.
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