{
    "mode": "perldoc",
    "parameter": "Crypt::Mac::XCBC",
    "section": "",
    "url": "https://www.chedong.com/phpMan.php/perldoc/Crypt%3A%3AMac%3A%3AXCBC/json",
    "generated": "2026-05-30T19:06:06Z",
    "synopsis": "### Functional interface:\nuse Crypt::Mac::XCBC qw( xcbc xcbchex );\n# calculate MAC from string/buffer\n$xcbcraw  = xcbc($ciphername, $key, 'data buffer');\n$xcbchex  = xcbchex($ciphername, $key, 'data buffer');\n$xcbcb64  = xcbcb64($ciphername, $key, 'data buffer');\n$xcbcb64u = xcbcb64u($ciphername, $key, 'data buffer');\n### OO interface:\nuse Crypt::Mac::XCBC;\n$d = Crypt::Mac::XCBC->new($ciphername, $key);\n$d->add('any data');\n$d->addfile('filename.dat');\n$d->addfile(*FILEHANDLE);\n$resultraw  = $d->mac;     # raw bytes\n$resulthex  = $d->hexmac;  # hexadecimal form\n$resultb64  = $d->b64mac;  # Base64 form\n$resultb64u = $d->b64umac; # Base64 URL Safe form",
    "sections": {
        "NAME": {
            "content": "Crypt::Mac::XCBC - Message authentication code XCBC (RFC 3566)\n",
            "subsections": []
        },
        "SYNOPSIS": {
            "content": "### Functional interface:\nuse Crypt::Mac::XCBC qw( xcbc xcbchex );\n\n# calculate MAC from string/buffer\n$xcbcraw  = xcbc($ciphername, $key, 'data buffer');\n$xcbchex  = xcbchex($ciphername, $key, 'data buffer');\n$xcbcb64  = xcbcb64($ciphername, $key, 'data buffer');\n$xcbcb64u = xcbcb64u($ciphername, $key, 'data buffer');\n\n### OO interface:\nuse Crypt::Mac::XCBC;\n\n$d = Crypt::Mac::XCBC->new($ciphername, $key);\n$d->add('any data');\n$d->addfile('filename.dat');\n$d->addfile(*FILEHANDLE);\n$resultraw  = $d->mac;     # raw bytes\n$resulthex  = $d->hexmac;  # hexadecimal form\n$resultb64  = $d->b64mac;  # Base64 form\n$resultb64u = $d->b64umac; # Base64 URL Safe form\n",
            "subsections": []
        },
        "DESCRIPTION": {
            "content": "Provides an interface to the XCBC message authentication code (MAC)\nalgorithm.\n",
            "subsections": []
        },
        "EXPORT": {
            "content": "Nothing is exported by default.\n\nYou can export selected functions:\n\nuse Crypt::Mac::XCBC qw(xcbc xcbchex );\n\nOr all of them at once:\n\nuse Crypt::Mac::XCBC ':all';\n",
            "subsections": []
        },
        "FUNCTIONS": {
            "content": "xcbc\nLogically joins all arguments into a single string, and returns its XCBC\nmessage authentication code encoded as a binary string.\n\n$xcbcraw = xcbc($ciphername, $key, 'data buffer');\n#or\n$xcbcraw = xcbc($ciphername, $key, 'any data', 'more data', 'even more data');\n\nxcbchex\nLogically joins all arguments into a single string, and returns its XCBC\nmessage authentication code encoded as a hexadecimal string.\n\n$xcbchex = xcbchex($ciphername, $key, 'data buffer');\n#or\n$xcbchex = xcbchex($ciphername, $key, 'any data', 'more data', 'even more data');\n\nxcbcb64\nLogically joins all arguments into a single string, and returns its XCBC\nmessage authentication code encoded as a Base64 string.\n\n$xcbcb64 = xcbcb64($ciphername, $key, 'data buffer');\n#or\n$xcbcb64 = xcbcb64($ciphername, $key, 'any data', 'more data', 'even more data');\n\nxcbcb64u\nLogically joins all arguments into a single string, and returns its XCBC\nmessage authentication code encoded as a Base64 URL Safe string (see RFC\n4648 section 5).\n\n$xcbcb64url = xcbcb64u($ciphername, $key, 'data buffer');\n#or\n$xcbcb64url = xcbcb64u($ciphername, $key, 'any data', 'more data', 'even more data');\n",
            "subsections": []
        },
        "METHODS": {
            "content": "new\n$d = Crypt::Mac::XCBC->new($ciphername, $key);\n\nclone\n$d->clone();\n\nreset\n$d->reset();\n\nadd\n$d->add('any data');\n#or\n$d->add('any data', 'more data', 'even more data');\n\naddfile\n$d->addfile('filename.dat');\n#or\n$d->addfile(*FILEHANDLE);\n\nmac\n$resultraw = $d->mac();\n\nhexmac\n$resulthex = $d->hexmac();\n\nb64mac\n$resultb64 = $d->b64mac();\n\nb64umac\n$resultb64url = $d->b64umac();\n",
            "subsections": []
        },
        "SEE ALSO": {
            "content": "*   CryptX\n\n*   <https://www.ietf.org/rfc/rfc3566.txt>\n",
            "subsections": []
        }
    },
    "summary": "Crypt::Mac::XCBC - Message authentication code XCBC (RFC 3566)",
    "flags": [],
    "examples": [],
    "see_also": []
}