| checkMD5sums {tools} | R Documentation |
Check and Create ‘MD5’ Checksum Files
Description
checkMD5sums checks the files against a file ‘MD5’.
Usage
checkMD5sums(package, dir)
Arguments
package |
the name of an installed package |
dir |
the path to the top-level directory of an installed package. |
Details
The file ‘MD5’ which is created is in a format which can be
checked by md5sum -c MD5 if a suitable command-line version
of md5sum is available. (For Windows, one is supplied in
the bundle at https://cran.r-project.org/bin/windows/Rtools/.)
If dir is missing, an installed package of name package
is searched for.
The private function tools:::.installMD5sums is used to create
‘MD5’ files.
Value
checkMD5sums returns a logical, NA if there is no
‘MD5’ file to be checked.
Note
As from R 4.6.0, the use of ‘MD5’ files has been deprecated in
favor of ‘SHA256’ files checked by checkSHA256sums,
since MD5 hashes are susceptible to hash-collision and length-extension
attacks and therefore are only suitable for integrity checks and not
for verification of authenticity.