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  2. Cyclic redundancy check - Wikipedia

    en.wikipedia.org/wiki/Cyclic_redundancy_check

    The ITU-T G.hn standard also uses CRC-32C to detect errors in the payload (although it uses CRC-16-CCITT for PHY headers). CRC-32C computation is implemented in hardware as an operation ( CRC32 ) of SSE4.2 instruction set, first introduced in Intel processors' Nehalem microarchitecture.

  3. Modbus - Wikipedia

    en.wikipedia.org/wiki/Modbus

    The CRC calculation is widely known as CRC-16-MODBUS, whose polynomial is x 16 + x 15 + x 2 + 1 (normal hexadecimal algebraic polynomial being 8005 and reversed A001). [26] Example of a Modbus RTU frame in hexadecimal: 01 04 02 FF FF B8 80 (CRC-16-MODBUS calculation for the 5 bytes from 01 to FF gives 80B8, which is transmitted least ...

  4. Computation of cyclic redundancy checks - Wikipedia

    en.wikipedia.org/wiki/Computation_of_cyclic...

    big_endian_table[0] := 0 crc := 0x8000 // Assuming a 16-bit polynomial i := 1 do { if crc and 0x8000 { crc := (crc leftShift 1) xor 0x1021 // The CRC polynomial} else { crc := crc leftShift 1 } // crc is the value of big_endian_table[i]; let j iterate over the already-initialized entries for j from 0 to i−1 { big_endian_table[i + j] := crc ...

  5. Mathematics of cyclic redundancy checks - Wikipedia

    en.wikipedia.org/wiki/Mathematics_of_cyclic...

    So CRC method can be used to correct single-bit errors as well (within those limits, e.g. 32,767 bits with optimal generator polynomials of degree 16). Since all odd errors leave an odd residual, all even an even residual, 1-bit errors and 2-bit errors can be distinguished.

  6. List of hash functions - Wikipedia

    en.wikipedia.org/wiki/List_of_hash_functions

    Printable version; In other projects Wikidata item; Appearance. move to sidebar hide. This is a list of hash ... CRC-16: 16 bits CRC: CRC-32: 32 bits CRC: CRC-64:

  7. Frame check sequence - Wikipedia

    en.wikipedia.org/wiki/Frame_check_sequence

    By far the most popular FCS algorithm is a cyclic redundancy check (CRC), used in Ethernet and other IEEE 802 protocols with 32 bits, in X.25 with 16 or 32 bits, in HDLC with 16 or 32 bits, in Frame Relay with 16 bits, [3] in Point-to-Point Protocol (PPP) with 16 or 32 bits, and in other data link layer protocols.

  8. 32 highly relatable daily thoughts of a dog owner - AOL

    www.aol.com/32-highly-relatable-daily-thoughts...

    16. I know all dogs are cute, but you are the absolute cutest. Pomeranian. If you own a dog, it's likely because you think they're the best animal in the whole world – which means you probably ...

  9. Fletcher's checksum - Wikipedia

    en.wikipedia.org/wiki/Fletcher's_checksum

    Usually, the second sum will be multiplied by 2 16 and added to the simple checksum, effectively stacking the sums side-by-side in a 32-bit word with the simple checksum at the least significant end. This algorithm is then called the Fletcher-32 checksum. The use of the modulus 2 16 − 1 = 65,535 is also generally implied. The rationale for ...