digest 0.6.3
digest version 0.6.3 is now on CRAN, and I'll upload the Debian package in a minute.

This is a minor bug release regarding just the recently-added sha512 support. Turns out the wrong initial buffer size was used on the R side. Hannes fixed that within hours after we got the bug report; but I was a little swamped with multiple deadlines and failed to upload this right away.

CRANberries provides the usual summary of changes to version 0.6.2. Our package is available via the R-Forge page leading to svn and tarball access, my digest page, the local directory here as well as via Debian and its mirrors.

/code/digest | permanent link

digest 0.6.2
digest version 0.6.2 came out a few days ago as an almost immediate follow-up to release 0.6.1. We used paste0() in a few places, and this is only available with newer versions of R. To not introduce as somewhat unnessecary dependency, we reverted this to plain old paste(). CRANberries provides the usual summary of changes to version 0.6.1.

As usual, our package is available via the R-Forge page leading to svn and tarball access, my digest page, the local directory here as well as via Debian and its mirrors.

/code/digest | permanent link

digest 0.6.1
digest version 0.6.1 is now on CRAN, and I will push the corresponding version into Debian shortly.

Duncan Murdoch added AES support, and helped me fix two issues which (annoyingly) made the Rout.save output differ on another platform.

CRANberries provides the usual summary of changes to version 0.6.0.

As usual, our package is available via the R-Forge page leading to svn and tarball access, my digest page and the local directory here.

/code/digest | permanent link

digest 0.6.0
A new version of the digest package (which generates hash function summaries for arbitrary (and possibly nested) R objects using any of the standard md5, sha-1, sha-256, sha-512 or crc32 algorithms) is now on CRAN, and I will push the corresponding version into Debian in a moment.

For this release, Hannes Muehleisen added support for sha-512 using an older standalone function by Aaron D. Gifford which I had to whip into slightly more portable shape to work on Windows. (Hint: uint32_t from stdint.h, not u_int32_t)

CRANberries provides the usual summary of changes to version 0.5.2.

As usual, our package is available via the R-Forge page leading to svn and tarball access, my digest page and the local directory here.

/code/digest | permanent link

digest 0.5.2
A new version of the digest package (which generates hash function summaries for arbitrary (and possibly nested) R objects using any of the standard md5, sha-1, sha-256 or crc32 algorithms) is now on CRAN.

Murray Stokely noticed a corner case where a file that was inaccessible lead to a segmentation fault. Thanks to his patch, this is now caught and flagged. He even added a test for it and fixed another one of my idioms. Nice work, so keep the patches coming folks :)

CRANberries provides the usual summary of changes to version 0.5.1.

As usual, our package is available via the R-Forge page leading to svn and tarball access, my digest page and the local directory here.

/code/digest | permanent link

digest 0.5.1
A new version of the digest package (which generates hash function summaries for arbitrary (and possibly nested) R objects using any of the standard md5, sha-1, sha-256 or crc32 algorithms) is now on CRAN.

Bryan Lewis, who is doing very stuff with websockets and Html5 as he demoed last week the Chicago R User Group meeting, needed raw support and was kind enough to send a patch. After some more testing, this change set is now in the new version which went onto CRAN earlier today.

CRANberries provides the usual summary of changes to version 0.5.0.

As usual, our package is available via the R-Forge page leading to svn and tarball access, my digest page and the local directory here.

/code/digest | permanent link

digest 0.5.0
A new version of the digest package (which generates hash function summaries for arbitrary (and possibly nested) R objects using any of the standard md5, sha-1, sha-256 or crc32 algorithms) is now on CRAN.

Thanks to a patch by Mario Frasca, digest now contains a second (exported) function hmac() to generate Hash-based Message Authentication Code as defined in RFC 2104. Reference output from RFC 2104 is used to validate this functionality as shown below where we run the example code from the hmac() help page:

R> library(digest)
R> example(hmac)

hmacR> ## Standard RFC 2104 test vectors
hmacR> current <- hmac('Jefe', 'what do ya want for nothing?', "md5")

hmacR> target <- '750c783e6ab0b503eaa86e310a5db738'

hmacR> stopifnot(identical(target, as.character(current)))

hmacR> current <- hmac(rep(0x0b, 16), 'Hi There', "md5")

hmacR> target <- '9294727a3638bb1c13f48ef8158bfc9d'

hmacR> stopifnot(identical(target, as.character(current)))

hmacR> current <- hmac(rep(0xaa, 16), rep(0xdd, 50), "md5")

hmacR> target <- '56be34521d144c88dbb8c733f0e8b3f6'

hmacR> stopifnot(identical(target, as.character(current)))

hmacR> ## SHA1 tests inspired to the RFC 2104 and checked against the python
hmacR> ## hmac implementation.
hmacR> current <- hmac('Jefe', 'what do ya want for nothing?', "sha1")

hmacR> target <- 'effcdf6ae5eb2fa2d27416d5f184df9c259a7c79'

hmacR> stopifnot(identical(target, as.character(current)))

hmacR> current <- hmac(rep(0x0b, 16), 'Hi There', "sha1")

hmacR> target <- '675b0b3a1b4ddf4e124872da6c2f632bfed957e9'

hmacR> stopifnot(identical(target, as.character(current)))

hmacR> current <- hmac(rep(0xaa, 16), rep(0xdd, 50), "sha1")

hmacR> target <- 'd730594d167e35d5956fd8003d0db3d3f46dc7bb'

hmacR> stopifnot(identical(target, as.character(current)))
R> 

Also, CRANberries shows the difference to the previsious release 0.4.2 as follows:

Diff between digest versions 0.4.2 dated 2009-12-06 and 0.5.0 dated 2011-05-30

 digest-0.4.2/digest/INDEX                      |only
 digest-0.4.2/digest/R/zzz.R                    |only
 digest-0.4.2/digest/inst                       |only
 digest-0.5.0/digest/ChangeLog                  |only
 digest-0.5.0/digest/DESCRIPTION                |   33 ++++++++++++-------------
 digest-0.5.0/digest/NAMESPACE                  |    7 +++--
 digest-0.5.0/digest/R/hmac.R                   |only
 digest-0.5.0/digest/man/hmac.Rd                |only
 digest-0.5.0/digest/tests/digestTest.Rout.save |    2 -
 digest-0.5.0/digest/tests/hmacTest.R           |only
 digest-0.5.0/digest/tests/hmacTest.Rout.save   |only
 11 files changed, 22 insertions(+), 20 deletions(-)

With that, special thanks to Mario Frasca for the patch and to Henrik Bengtsson for helpful discussion. We took some care to ensure that the existing interface to the digest() function remains unaffected.

/code/digest | permanent link