---

Class ::ns_crypto::HashFunctions

::ns_crypto::HashFunctions create ... \
           [ -ctx ctx ] \
           [ -digest (default "sha256") ]

Defined in

Class Relations

• class: ::nx::Class
• superclass: ::nx::Object
• subclass: ::ns_hmac, ::ns_md

::nx::Class create ::ns_crypto::HashFunctions \
     -superclass ::nx::Object

Methods (to be applied on instances)

• readfile (scripted, public)

   <instance of ns_crypto::HashFunctions> readfile \
      [ -encoding encoding ] filename

  Read a file blockwise and call the incremental crypto function on every block.

  Switches:

  -encoding (optional, defaults to "hex")

  Parameters:

  filename (required)

  Testcases:

  No testcase defined.

  set F [open $filename]
  fconfigure $F -translation binary
  while (1) {
      set block [read $F 32768]
      :add $block
      if {[string length $block] < 32768} {
          break
      }
  }
  close $F
  #
  # Return the hash sum
  #
  return [:get -encoding $encoding]

---