| PackageDescription | GNU R package for 'hash digest' of R data structures
This 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 package uses a 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. |