CRC-32 Calculator
CRC-32 (IEEE 802.3 polynomial)
Client-side computation for analysis, verification, and learning. Do not paste production secrets into untrusted sites; prefer local tooling for key material.
Educational / engineering use. RSA mode uses tiny primes for illustration only—not for real key generation.
CRC-32: 0xCBF43926 (3421780262)
Add CRC-32 Calculator Free On Your Website
Paste this HTML on your site.
What is CRC-32 Calculator?
Cyclic Redundancy Check is an error-detection algorithm that produces a 32-bit hash from input data. Widely used in file integrity checks, network protocols, and storage systems to detect accidental data corruption.
CRC-32 Formula
Where M(x) is the message polynomial, G(x) is the 32-bit generator polynomial, and r = 32.
Standard CRC-32 polynomial:
Step-by-Step
- Convert input to bytes.
- Initialize CRC register.
- Process bytes with polynomial operations.
- Apply final XOR.
- Return 32-bit checksum.
Worked Example
Input: "ABC" (binary bytes: 01000001 01000010 01000011)
Step 1: Append 32 zero bits.
Step 2: Perform polynomial XOR long division by generator G(x).
Step 3: Take remainder as CRC.
Result: CRC-32("ABC") = 0xA3830348.
Where CRC-32 Calculator Is Applied
- ZIP, RAR, and gzip file integrity verification
- Ethernet frame error detection (IEEE 802.3)
- PNG image file chunk validation
- USB protocol data integrity
- SATA/SSD storage error detection
- MPEG-2 transport stream verification in TV broadcasting
Related Cryptography Calculators
Explore similar calculators to streamline your workflow.