Description:

The digest package provides a function 'digest()' for the creation of hash
digests of arbitrary R objects (using the md5, sha-1, sha-256 and crc32
algorithms) permitting easy comparison of R language objects, as well as a
function 'hmac()' to create hash-based message authentication code. . The
md5 algorithm by Ron Rivest is specified in RFC 1321, the SHA-1 and
SHA-256 algorithms are specified in FIPS-180-1 and FIPS-180-2, and the
crc32 algorithm is described in
ftp://ftp.rocksoft.com/cliens/rocksoft/papers/crc_v3.txt. For md5, sha-1
and sha-256, this packages uses small standalone implementations that were
provided by Christophe Devine. For crc32, code from the zlib library is
used. . 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.