Module ssdeep::BlockSize

Utility related to block size part of the fuzzy hash.

See also: “Block Size” section of FuzzyHashData

Incompatibility Notice

This module is renamed from BlockSize to block_size in the version 0.2.2. The old name BlockSize will be removed on the version 0.3.0.

Constants

• MIN
  The minimum block size of a fuzzy hash.
• NUM_VALID
  The number of valid block sizes.

Functions

• cmp
  Compares two base-2 logarithm forms of the block size values for ordering.
• compare_sizes
  Compare two base-2 logarithm forms of the block size values to determine the relation between two block sizes.
• from_log
  Converts base-2 logarithm form of the block size to the actual one.
• from_log_unchecked^⚠unchecked
  Converts base-2 logarithm form of the block size to the actual one without checking validity of the block size.
• is_log_valid
  Checks whether base-2 logarithm form of the block size is valid.
• is_near
  Checks whether two base-2 logarithm forms of the block size values form a near relation (one of the three near cases).
• is_near_eq
  Checks whether two base-2 logarithm forms of the block size values form a BlockSizeRelation::NearEq relation.
• is_near_gt
  Checks whether two base-2 logarithm forms of the block size values form a BlockSizeRelation::NearGt relation.
• is_near_lt
  Checks whether two base-2 logarithm forms of the block size values form a BlockSizeRelation::NearLt relation.
• is_valid
  Checks whether a given block size is valid.
• log_from_valid
  Computes the base-2 logarithm form of a valid block size.
• log_from_valid_unchecked^⚠unchecked
  Computes the base-2 logarithm form of a valid block size but do not check whether the block size is valid.