crypto:crypto_open_hash

Documentation
- Reference manual
- Packages
  - SWI-Prolog SSL Interface
    - library(crypto): Cryptography and authentication library
      - Hashes
        
        Hashing incrementally
        
        crypto_context_new/2
        
        crypto_data_context/3
        
        crypto_context_hash/2
        
        crypto_open_hash_stream/3
        
        crypto_stream_hash/2

Availability::- use_module(library(crypto)).(can be autoloaded)

[det]crypto_open_hash_stream(+OrgStream, -HashStream, +Options)

Open a filter stream on OrgStream that maintains a hash. The hash can be retrieved at any time using crypto_stream_hash/2. Available Options in addition to those of crypto_data_hash/3 are:

close_parent(+Bool): If true (default), closing the filter stream also closes the original (parent) stream.