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  2. Simple file verification - Wikipedia

    en.wikipedia.org/wiki/Simple_file_verification

    SFV verification ensures that a file has not been corrupted by comparing the file's CRC hash value to a previously calculated value. [1] Due to the nature of hash functions, hash collisions may result in false positives, but the likelihood of collisions is usually negligible with random corruption. (The number of possible checksums is limited ...

  3. File verification - Wikipedia

    en.wikipedia.org/wiki/File_verification

    A file can become corrupted by a variety of ways: faulty storage media, errors in transmission, write errors during copying or moving, software bugs, and so on. Hash-based verification ensures that a file has not been corrupted by comparing the file's hash value to a previously calculated value. If these values match, the file is presumed to be ...

  4. Checksum - Wikipedia

    en.wikipedia.org/wiki/Checksum

    This greatly increases the chances of slightly different spam emails producing the same checksum. The ISP spam detection software, such as SpamAssassin, of co-operating ISPs, submits checksums of all emails to the centralised service such as DCC. If the count of a submitted fuzzy checksum exceeds a certain threshold, the database notes that ...

  5. File integrity monitoring - Wikipedia

    en.wikipedia.org/wiki/File_integrity_monitoring

    File integrity monitoring (FIM) is an internal control or process that performs the act of validating the integrity of operating system and application software files using a verification method between the current file state and a known, good baseline.

  6. md5sum - Wikipedia

    en.wikipedia.org/wiki/Md5sum

    The MD5 hash functions as a compact digital fingerprint of a file. As with all such hashing algorithms, there is theoretically an unlimited number of files that will have any given MD5 hash. However, it is very unlikely that any two non-identical files in the real world will have the same MD5 hash, unless they have been specifically created to ...

  7. VirusTotal - Wikipedia

    en.wikipedia.org/wiki/VirusTotal

    Anti-virus software vendors can receive copies of files that were flagged by other scans but passed by their own engine, to help improve their software and, by extension, VirusTotal's own capability. Users can also scan suspect URLs and search through the VirusTotal dataset.

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