When comparing IgorWare Hasher vs Hashdeep, the Slant community recommends Hashdeep for most people. In the question“What are the best file integrity checkers?” Hashdeep is ranked 3rd while IgorWare Hasher is ranked 21st. The most important reason people chose Hashdeep is:
Piecewise mode. It breaks files into chunks before hashing.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Supports SHA-1, MD5, and CRC32 checksum formats
Choose one or more hash types to calculate simultaneously.
Pro Can compare hashes directly against externally verified checksums
Just copy the checksum into a verification field for the particular checksum format.
Pro Can hash plain text (using UTF-8 encoding) pasted into a text field
Pro Portable
Pro Piecewise mode
Piecewise mode. It breaks files into chunks before hashing.
Pro Recursive operations
To get hash values of a directory and output results to a file:
hashdeep -r directory_name/ > hash.txt
To check files against saved has values (audit):
hashdeep -r -a -k hash.txt directory_name
Pro Multiple checksum algorithms
Support for MD5, SHA-1, SHA-256, Tiger, and Whirlpool hashes.
Pro Cross-platform
A pre-built version for Windows is available. For macOS, Linux and BSD versions, built by 3rd parties are available.
Pro Can give time estimate
-e attribute will show ETA.