How does Linux calculate hash values?

1 year ago
Benjamin Taylor
1 minute

In Linux, the commonly used hashing algorithms for calculating hash values typically include the following:

  1. MD5 (Message Digest Algorithm 5) is a widely-used hash function that generates a 128-bit (16-byte) hash value. You can use the command md5sum to calculate the MD5 hash value of a file.
  2. SHA-1, or Secure Hash Algorithm 1, is a high-security hash function that generates a 160-bit (20-byte) hash value. You can use the command sha1sum to calculate the SHA-1 hash value of a file.
  3. SHA-256, which stands for Secure Hash Algorithm 256, is one of the most commonly used hash functions in the SHA-2 series. It produces a 256-bit (32-byte) hash value. To calculate the SHA-256 hash value of a file, you can use the command sha256sum.
  4. SHA-512 is a type of hashing function in the SHA-2 series that generates a 512-bit (64-byte) hash value. You can use the command sha512sum to calculate the SHA-512 hash value of a file.

These hash algorithms can be used to calculate the hash value of files or data, playing a crucial role in data verification, integrity validation, and other aspects.

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