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  "Date": "2026-08-12",
  "Title": "Create Compact Hash Digests of R Objects",
  "Description": "Implementation of a function 'digest()' for the creation\nof hash digests of arbitrary R objects (using the 'md5',\n'sha-1', 'sha-256', 'crc32', 'xxhash', 'murmurhash',\n'spookyhash', 'blake3', 'crc32c', 'xxh3_64', 'xxh3_128', and\n'fletcher' algorithms) permitting easy comparison of R language\nobjects, as well as functions such as 'hmac()' to create\nhash-based message authentication code. Please note that this\npackage is not meant to be deployed for cryptographic purposes\nfor which more comprehensive (and widely tested) libraries such\nas 'OpenSSL' should be used.",
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  "Date/Publication": "2026-08-21 11:31:44 UTC",
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    "digest",
    "digest2int",
    "getVDigest",
    "hmac",
    "makeRaw",
    "sha1",
    "sha1_attr_digest",
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      "page": "AES",
      "title": "Create AES block cipher object",
      "topics": [
        "AES"
      ]
    },
    {
      "page": "digest",
      "title": "Create hash function digests for arbitrary R objects or files",
      "topics": [
        "digest"
      ]
    },
    {
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      "title": "hash arbitrary string to integer",
      "topics": [
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      ]
    },
    {
      "page": "vdigest",
      "title": "Set a vectorised function for creating hash function digests",
      "topics": [
        "getVDigest"
      ]
    },
    {
      "page": "hmac",
      "title": "compute a hash-based message authentication code",
      "topics": [
        "hmac"
      ]
    },
    {
      "page": "makeRaw",
      "title": "Create a raw object",
      "topics": [
        "makeRaw",
        "makeRaw.character",
        "makeRaw.default",
        "makeRaw.digest",
        "makeRaw.raw"
      ]
    },
    {
      "page": "sha1",
      "title": "Calculate a SHA1 hash of an object",
      "topics": [
        "sha1",
        "sha1.(",
        "sha1.<-",
        "sha1.anova",
        "sha1.array",
        "sha1.call",
        "sha1.character",
        "sha1.complex",
        "sha1.data.frame",
        "sha1.Date",
        "sha1.environment",
        "sha1.factor",
        "sha1.formula",
        "sha1.function",
        "sha1.integer",
        "sha1.list",
        "sha1.logical",
        "sha1.matrix",
        "sha1.name",
        "sha1.NULL",
        "sha1.numeric",
        "sha1.pairlist",
        "sha1.POSIXct",
        "sha1.POSIXlt",
        "sha1.raw",
        "sha1_attr_digest",
        "sha1_digest"
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  "_vignettes": [
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      "filename": "sha1.html",
      "title": "sha1() versus digest()",
      "engine": "simplermarkdown::mdweave_to_html",
      "headings": [
        "title: \"Calculating SHA1 hashes with digest() and sha1()\"author: \"Thierry Onkelinx and Dirk Eddelbuettel\"date: \"Written Jan 2016, updated Jan 2018 and Oct 2020\"css: \"water.css\"",
        "Short intro on hashes",
        "Difference between digest() and sha1()",
        "Choosing digest() or sha1()",
        "Creating a sha1 method for other classes",
        "How to",
        "summary.lm",
        "lm",
        "Using hashes to track changes in analysis"
      ],
      "created": "2021-11-20 18:55:09",
      "modified": "2025-01-01 14:21:11",
      "commits": 2
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