The digest package provides functions 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. 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.

Dirk Eddelbuettel <edd@debian.org> with contributions by
Antoine Lucas, Jarek Tuszynski, Henrik Bengtsson, Simon Urbanek
and Mario Frasca.
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.

Dirk Eddelbuettel <edd@debian.org> with contributions by
Antoine Lucas, Jarek Tuszynski, Henrik Bengtsson, Simon
Urbanek, Mario Frasca and Bryan Lewis.
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.