Create Compact Hash Digests of R Objects

Implementation of a function 'digest()' for the creation 
 of hash digests of arbitrary R objects (using the 'md5', 'sha-1', 'sha-256', 
 'crc32', 'xxhash', 'murmurhash' and 'spookyhash' algorithms) permitting easy
 comparison of R language objects, as well as functions such as'hmac()' to
 create hash-based message authentication code. Please note that this package
 is not meant to be deployed for cryptographic purposes for which more
 comprehensive (and widely tested) libraries such as 'OpenSSL' should be
 used.

Read Data Stored by 'Minitab', 'S', 'SAS', 'SPSS', 'Stata',
'Systat', 'Weka', 'dBase', ...

c(
   person("R Core Team",
      email = "R-core@R-project.org", role = c("aut", "cph", "cre")),
    person("Roger", "Bivand", role = c("ctb", "cph")),
    person(c("Vincent", "J."), "Carey", role = c("ctb", "cph")),
    person("Saikat", "DebRoy", role = c("ctb", "cph")),
    person("Stephen", "Eglen", role = c("ctb", "cph")),
    person("Rajarshi", "Guha", role = c("ctb", "cph")),
    person("Swetlana", "Herbrandt", role = "ctb"),
    person("Nicholas", "Lewin-Koh", role = c("ctb", "cph")),
    person("Mark", "Myatt", role = c("ctb", "cph")),
    person("Michael", "Nelson", role = "ctb"),
    person("Ben", "Pfaff", role = "ctb"),
    person("Brian", "Quistorff", role = "ctb"),
    person("Frank", "Warmerdam", role = c("ctb", "cph")),
    person("Stephen", "Weigand", role = c("ctb", "cph")),
    person("Free Software Foundation, Inc.", role = "cph"))

Reading and writing data stored by some versions of
	'Epi Info', 'Minitab', 'S', 'SAS', 'SPSS', 'Stata', 'Systat', 'Weka',
	and for reading and writing some 'dBase' files.

R Core Team [aut, cph, cre],
  Roger Bivand [ctb, cph],
  Vincent J. Carey [ctb, cph],
  Saikat DebRoy [ctb, cph],
  Stephen Eglen [ctb, cph],
  Rajarshi Guha [ctb, cph],
  Swetlana Herbrandt [ctb],
  Nicholas Lewin-Koh [ctb, cph],
  Mark Myatt [ctb, cph],
  Michael Nelson [ctb],
  Ben Pfaff [ctb],
  Brian Quistorff [ctb],
  Frank Warmerdam [ctb, cph],
  Stephen Weigand [ctb, cph],
  Free Software Foundation, Inc. [cph]