34 lines
1.1 KiB
R
34 lines
1.1 KiB
R
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## ----echo = FALSE, message = FALSE--------------------------------------------
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knitr::opts_chunk$set(comment = "")
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library(openssl)
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## -----------------------------------------------------------------------------
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md5("foo")
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md5(charToRaw("foo"))
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## -----------------------------------------------------------------------------
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# Vectorized for strings
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md5(c("foo", "bar", "baz"))
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## -----------------------------------------------------------------------------
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# Stream-hash a file
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myfile <- system.file("CITATION")
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md5(file(myfile))
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## ----eval=FALSE---------------------------------------------------------------
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# # Stream-hash from a network connection
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# as.character(md5(url("https://cran.r-project.org/bin/windows/base/old/4.0.0/R-4.0.0-win.exe")))
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#
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# # Compare
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# readLines('https://cran.r-project.org/bin/windows/base/old/4.0.0/md5sum.txt')
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## -----------------------------------------------------------------------------
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# Compare to digest
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library(digest)
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digest("foo", "md5", serialize = FALSE)
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# Other way around
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digest(cars, skip = 0)
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md5(serialize(cars, NULL))
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