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Hashing & Checksums

CRC Checksum Digest Calculator

Calculate or verify a digest with CRC Checksum. Enter the data, choose the digest options, then copy the calculated value.

Tool workspace

Your input stays in this browser.

Add the required input to continue.

Needs input

You can run the tool again after any change.

Options

Your result appears here

Calculate or verify a digest with CRC Checksum. Enter the data, choose the digest options, then copy the calculated value.

This tool runs open-source code from CyberChef by GCHQ (Apache License 2.0). See open-source credits.

CRC Checksum Digest Calculator uses CRC for the supplied input. The operation returns a checksum or check bit for the supplied input and settings. The digest or checksum format is specific to CRC Checksum Digest Calculator.

The operation returns a checksum or check bit for the supplied input and settings. The digest or checksum format is specific to CRC Checksum Digest Calculator. This result runs in the browser for this catalog category. Processing runs in the browser.

Checksums detect selected transmission or entry errors; they do not provide confidentiality or adversarial integrity.

Instructions

  1. Provide text or data for this tool.
  2. Use a short public fixture first. This applies to CRC Checksum Digest Calculator.
  3. Record algorithm width and byte ordering with the result. This applies to CRC Checksum Digest Calculator.
  4. Change one input byte to confirm the expected error-detection behavior. This applies to CRC Checksum Digest Calculator.

Example

Input: Short public bytes "Test message". Algorithm operation: CRC Checksum Digest Calculator.

Settings: CRC Checksum Digest Calculator: Use the input type required by the operation. Select the documented algorithm, width, mode, block size, or delimiter. Use the text or Hex output format expected by the receiving system.

Result: The operation returns a checksum or check bit for the supplied input and settings. The digest or checksum format is specific to CRC Checksum Digest Calculator.

Limits

  • CRC Checksum Digest Calculator: A checksum is not a cryptographic signature.
  • CRC Checksum Digest Calculator: It can miss deliberate changes or collisions.
  • CRC Checksum Digest Calculator: Interoperability depends on width, polynomial, byte order, and formatting settings.

Questions

What input does CRC Checksum Digest Calculator accept?

CRC Checksum Digest Calculator accepts binary data or a selected file.

Which settings does CRC Checksum Digest Calculator provide?

CRC Checksum Digest Calculator provides controls for Algorithm, Custom, CRC-3/GSM, CRC-3/ROHC, CRC-4/G-704, CRC-4/INTERLAKEN, CRC-4/ITU, CRC-5/EPC, CRC-5/EPC-C1G2, CRC-5/G-704, CRC-5/ITU, CRC-5/USB, CRC-6/CDMA2000-A, CRC-6/CDMA2000-B, CRC-6/DARC, CRC-6/G-704, CRC-6/GSM, CRC-6/ITU, CRC-7/MMC, CRC-7/ROHC, CRC-7/UMTS, CRC-8, CRC-8/8H2F, CRC-8/AES, CRC-8/AUTOSAR, CRC-8/BLUETOOTH, CRC-8/CDMA2000, CRC-8/DARC, CRC-8/DVB-S2, CRC-8/EBU, CRC-8/GSM-A, CRC-8/GSM-B, CRC-8/HITAG, CRC-8/I-432-1, CRC-8/I-CODE, CRC-8/ITU, CRC-8/LTE, CRC-8/MAXIM, CRC-8/MAXIM-DOW, CRC-8/MIFARE-MAD, CRC-8/NRSC-5, CRC-8/OPENSAFETY, CRC-8/ROHC, CRC-8/SAE-J1850, CRC-8/SAE-J1850-ZERO, CRC-8/SMBUS, CRC-8/TECH-3250, CRC-8/WCDMA, CRC-10/ATM, CRC-10/CDMA2000, CRC-10/GSM, CRC-10/I-610, CRC-11/FLEXRAY, CRC-11/UMTS, CRC-12/3GPP, CRC-12/CDMA2000, CRC-12/DECT, CRC-12/GSM, CRC-12/UMTS, CRC-13/BBC, CRC-14/DARC, CRC-14/GSM, CRC-15/CAN, CRC-15/MPT1327, CRC-16, CRC-16/A, CRC-16/ACORN, CRC-16/ARC, CRC-16/AUG-CCITT, CRC-16/AUTOSAR, CRC-16/B, CRC-16/BLUETOOTH, CRC-16/BUYPASS, CRC-16/CCITT, CRC-16/CCITT-FALSE, CRC-16/CCITT-TRUE, CRC-16/CCITT-ZERO, CRC-16/CDMA2000, CRC-16/CMS, CRC-16/DARC, CRC-16/DDS-110, CRC-16/DECT-R, CRC-16/DECT-X, CRC-16/DNP, CRC-16/EN-13757, CRC-16/EPC, CRC-16/EPC-C1G2, CRC-16/GENIBUS, CRC-16/GSM, CRC-16/I-CODE, CRC-16/IBM, CRC-16/IBM-3740, CRC-16/IBM-SDLC, CRC-16/IEC-61158-2, CRC-16/ISO-HDLC, CRC-16/ISO-IEC-14443-3-A, CRC-16/ISO-IEC-14443-3-B, CRC-16/KERMIT, CRC-16/LHA, CRC-16/LJ1200, CRC-16/LTE, CRC-16/M17, CRC-16/MAXIM, CRC-16/MAXIM-DOW, CRC-16/MCRF4XX, CRC-16/MODBUS, CRC-16/NRSC-5, CRC-16/OPENSAFETY-A, CRC-16/OPENSAFETY-B, CRC-16/PROFIBUS, CRC-16/RIELLO, CRC-16/SPI-FUJITSU, CRC-16/T10-DIF, CRC-16/TELEDISK, CRC-16/TMS37157, CRC-16/UMTS, CRC-16/USB, CRC-16/V-41-LSB, CRC-16/V-41-MSB, CRC-16/VERIFONE, CRC-16/X-25, CRC-16/XMODEM, CRC-16/ZMODEM, CRC-17/CAN-FD, CRC-21/CAN-FD, CRC-24/BLE, CRC-24/FLEXRAY-A, CRC-24/FLEXRAY-B, CRC-24/INTERLAKEN, CRC-24/LTE-A, CRC-24/LTE-B, CRC-24/OPENPGP, CRC-24/OS-9, CRC-30/CDMA, CRC-31/PHILIPS, CRC-32, CRC-32/AAL5, CRC-32/ADCCP, CRC-32/AIXM, CRC-32/AUTOSAR, CRC-32/BASE91-C, CRC-32/BASE91-D, CRC-32/BZIP2, CRC-32/C, CRC-32/CASTAGNOLI, CRC-32/CD-ROM-EDC, CRC-32/CKSUM, CRC-32/D, CRC-32/DECT-B, CRC-32/INTERLAKEN, CRC-32/ISCSI, CRC-32/ISO-HDLC, CRC-32/JAMCRC, CRC-32/MEF, CRC-32/MPEG-2, CRC-32/NVME, CRC-32/PKZIP, CRC-32/POSIX, CRC-32/Q, CRC-32/SATA, CRC-32/V-42, CRC-32/XFER, CRC-32/XZ, CRC-40/GSM, CRC-64/ECMA-182, CRC-64/GO-ECMA, CRC-64/GO-ISO, CRC-64/MS, CRC-64/NVME, CRC-64/REDIS, CRC-64/WE, CRC-64/XZ, CRC-82/DARC, Width (bits), Polynomial, Initialization, Reflect input, Reflect output, Xor Output.

What does CRC Checksum Digest Calculator return?

CRC Checksum Digest Calculator returns text.