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cyclic-32 - npm Package Compare versions
Comparing version 1.0.2 to 1.1.0
128
lib/crc32.js
@@ -9,9 +9,10 @@ 'use strict' | ||
| * @param {Number} [seed=0] | ||
| * @param {Int32Array} [table=crc32.TABLE.DEFAULT] | ||
| * @returns {Number} checksum | ||
| */ | ||
| function crc32( buffer, seed ) { | ||
| function crc32( buffer, seed, table ) { | ||
| var crc = seed ^ -1 | ||
| var length = buffer.length - 15 | ||
| var TABLE = crc32.TABLE | ||
| var TABLE = table || crc32.TABLE.DEFAULT | ||
| var i = 0 | ||
@@ -50,40 +51,87 @@ | ||
| /** | ||
| * CRC32 lookup table | ||
| * @const {Array} | ||
| * CRC32 Lookup tables | ||
| * @enum {Int32Array} | ||
| */ | ||
| crc32.TABLE = [ | ||
| 0, 1996959894, -301047508, -1727442502, 124634137, 1886057615, -379345611, -1637575261, | ||
| 249268274, 2044508324, -522852066, -1747789432, 162941995, 2125561021, -407360249, -1866523247, | ||
| 498536548, 1789927666, -205950648, -2067906082, 450548861, 1843258603, -187386543, -2083289657, | ||
| 325883990, 1684777152, -43845254, -1973040660, 335633487, 1661365465, -99664541, -1928851979, | ||
| 997073096, 1281953886, -715111964, -1570279054, 1006888145, 1258607687, -770865667, -1526024853, | ||
| 901097722, 1119000684, -608450090, -1396901568, 853044451, 1172266101, -589951537, -1412350631, | ||
| 651767980, 1373503546, -925412992, -1076862698, 565507253, 1454621731, -809855591, -1195530993, | ||
| 671266974, 1594198024, -972236366, -1324619484, 795835527, 1483230225, -1050600021, -1234817731, | ||
| 1994146192, 31158534, -1731059524, -271249366, 1907459465, 112637215, -1614814043, -390540237, | ||
| 2013776290, 251722036, -1777751922, -519137256, 2137656763, 141376813, -1855689577, -429695999, | ||
| 1802195444, 476864866, -2056965928, -228458418, 1812370925, 453092731, -2113342271, -183516073, | ||
| 1706088902, 314042704, -1950435094, -54949764, 1658658271, 366619977, -1932296973, -69972891, | ||
| 1303535960, 984961486, -1547960204, -725929758, 1256170817, 1037604311, -1529756563, -740887301, | ||
| 1131014506, 879679996, -1385723834, -631195440, 1141124467, 855842277, -1442165665, -586318647, | ||
| 1342533948, 654459306, -1106571248, -921952122, 1466479909, 544179635, -1184443383, -832445281, | ||
| 1591671054, 702138776, -1328506846, -942167884, 1504918807, 783551873, -1212326853, -1061524307, | ||
| -306674912, -1698712650, 62317068, 1957810842, -355121351, -1647151185, 81470997, 1943803523, | ||
| -480048366, -1805370492, 225274430, 2053790376, -468791541, -1828061283, 167816743, 2097651377, | ||
| -267414716, -2029476910, 503444072, 1762050814, -144550051, -2140837941, 426522225, 1852507879, | ||
| -19653770, -1982649376, 282753626, 1742555852, -105259153, -1900089351, 397917763, 1622183637, | ||
| -690576408, -1580100738, 953729732, 1340076626, -776247311, -1497606297, 1068828381, 1219638859, | ||
| -670225446, -1358292148, 906185462, 1090812512, -547295293, -1469587627, 829329135, 1181335161, | ||
| -882789492, -1134132454, 628085408, 1382605366, -871598187, -1156888829, 570562233, 1426400815, | ||
| -977650754, -1296233688, 733239954, 1555261956, -1026031705, -1244606671, 752459403, 1541320221, | ||
| -1687895376, -328994266, 1969922972, 40735498, -1677130071, -351390145, 1913087877, 83908371, | ||
| -1782625662, -491226604, 2075208622, 213261112, -1831694693, -438977011, 2094854071, 198958881, | ||
| -2032938284, -237706686, 1759359992, 534414190, -2118248755, -155638181, 1873836001, 414664567, | ||
| -2012718362, -15766928, 1711684554, 285281116, -1889165569, -127750551, 1634467795, 376229701, | ||
| -1609899400, -686959890, 1308918612, 956543938, -1486412191, -799009033, 1231636301, 1047427035, | ||
| -1362007478, -640263460, 1088359270, 936918000, -1447252397, -558129467, 1202900863, 817233897, | ||
| -1111625188, -893730166, 1404277552, 615818150, -1160759803, -841546093, 1423857449, 601450431, | ||
| -1285129682, -1000256840, 1567103746, 711928724, -1274298825, -1022587231, 1510334235, 755167117, | ||
| ] | ||
| crc32.TABLE = { | ||
| /** | ||
| * Default CRC-32 Lookup Table | ||
| * @type {Int32Array} | ||
| */ | ||
| DEFAULT: new Int32Array([ | ||
| 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3, | ||
| 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, | ||
| 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, | ||
| 0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5, | ||
| 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, | ||
| 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59, | ||
| 0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f, | ||
| 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, | ||
| 0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433, | ||
| 0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01, | ||
| 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, | ||
| 0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65, | ||
| 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, | ||
| 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, | ||
| 0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f, | ||
| 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, | ||
| 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, | ||
| 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, | ||
| 0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7, | ||
| 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, | ||
| 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b, | ||
| 0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79, | ||
| 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, | ||
| 0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d, | ||
| 0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713, | ||
| 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, | ||
| 0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777, | ||
| 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, | ||
| 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, | ||
| 0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9, | ||
| 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf, | ||
| 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d, | ||
| ]), | ||
| /** | ||
| * CRC-32C (Castagnoli) Lookup Table | ||
| * @type {Int32Array} | ||
| */ | ||
| CASTAGNOLI: new Int32Array([ | ||
| 0x00000000, 0xf26b8303, 0xe13b70f7, 0x1350f3f4, 0xc79a971f, 0x35f1141c, 0x26a1e7e8, 0xd4ca64eb, | ||
| 0x8ad958cf, 0x78b2dbcc, 0x6be22838, 0x9989ab3b, 0x4d43cfd0, 0xbf284cd3, 0xac78bf27, 0x5e133c24, | ||
| 0x105ec76f, 0xe235446c, 0xf165b798, 0x030e349b, 0xd7c45070, 0x25afd373, 0x36ff2087, 0xc494a384, | ||
| 0x9a879fa0, 0x68ec1ca3, 0x7bbcef57, 0x89d76c54, 0x5d1d08bf, 0xaf768bbc, 0xbc267848, 0x4e4dfb4b, | ||
| 0x20bd8ede, 0xd2d60ddd, 0xc186fe29, 0x33ed7d2a, 0xe72719c1, 0x154c9ac2, 0x061c6936, 0xf477ea35, | ||
| 0xaa64d611, 0x580f5512, 0x4b5fa6e6, 0xb93425e5, 0x6dfe410e, 0x9f95c20d, 0x8cc531f9, 0x7eaeb2fa, | ||
| 0x30e349b1, 0xc288cab2, 0xd1d83946, 0x23b3ba45, 0xf779deae, 0x05125dad, 0x1642ae59, 0xe4292d5a, | ||
| 0xba3a117e, 0x4851927d, 0x5b016189, 0xa96ae28a, 0x7da08661, 0x8fcb0562, 0x9c9bf696, 0x6ef07595, | ||
| 0x417b1dbc, 0xb3109ebf, 0xa0406d4b, 0x522bee48, 0x86e18aa3, 0x748a09a0, 0x67dafa54, 0x95b17957, | ||
| 0xcba24573, 0x39c9c670, 0x2a993584, 0xd8f2b687, 0x0c38d26c, 0xfe53516f, 0xed03a29b, 0x1f682198, | ||
| 0x5125dad3, 0xa34e59d0, 0xb01eaa24, 0x42752927, 0x96bf4dcc, 0x64d4cecf, 0x77843d3b, 0x85efbe38, | ||
| 0xdbfc821c, 0x2997011f, 0x3ac7f2eb, 0xc8ac71e8, 0x1c661503, 0xee0d9600, 0xfd5d65f4, 0x0f36e6f7, | ||
| 0x61c69362, 0x93ad1061, 0x80fde395, 0x72966096, 0xa65c047d, 0x5437877e, 0x4767748a, 0xb50cf789, | ||
| 0xeb1fcbad, 0x197448ae, 0x0a24bb5a, 0xf84f3859, 0x2c855cb2, 0xdeeedfb1, 0xcdbe2c45, 0x3fd5af46, | ||
| 0x7198540d, 0x83f3d70e, 0x90a324fa, 0x62c8a7f9, 0xb602c312, 0x44694011, 0x5739b3e5, 0xa55230e6, | ||
| 0xfb410cc2, 0x092a8fc1, 0x1a7a7c35, 0xe811ff36, 0x3cdb9bdd, 0xceb018de, 0xdde0eb2a, 0x2f8b6829, | ||
| 0x82f63b78, 0x709db87b, 0x63cd4b8f, 0x91a6c88c, 0x456cac67, 0xb7072f64, 0xa457dc90, 0x563c5f93, | ||
| 0x082f63b7, 0xfa44e0b4, 0xe9141340, 0x1b7f9043, 0xcfb5f4a8, 0x3dde77ab, 0x2e8e845f, 0xdce5075c, | ||
| 0x92a8fc17, 0x60c37f14, 0x73938ce0, 0x81f80fe3, 0x55326b08, 0xa759e80b, 0xb4091bff, 0x466298fc, | ||
| 0x1871a4d8, 0xea1a27db, 0xf94ad42f, 0x0b21572c, 0xdfeb33c7, 0x2d80b0c4, 0x3ed04330, 0xccbbc033, | ||
| 0xa24bb5a6, 0x502036a5, 0x4370c551, 0xb11b4652, 0x65d122b9, 0x97baa1ba, 0x84ea524e, 0x7681d14d, | ||
| 0x2892ed69, 0xdaf96e6a, 0xc9a99d9e, 0x3bc21e9d, 0xef087a76, 0x1d63f975, 0x0e330a81, 0xfc588982, | ||
| 0xb21572c9, 0x407ef1ca, 0x532e023e, 0xa145813d, 0x758fe5d6, 0x87e466d5, 0x94b49521, 0x66df1622, | ||
| 0x38cc2a06, 0xcaa7a905, 0xd9f75af1, 0x2b9cd9f2, 0xff56bd19, 0x0d3d3e1a, 0x1e6dcdee, 0xec064eed, | ||
| 0xc38d26c4, 0x31e6a5c7, 0x22b65633, 0xd0ddd530, 0x0417b1db, 0xf67c32d8, 0xe52cc12c, 0x1747422f, | ||
| 0x49547e0b, 0xbb3ffd08, 0xa86f0efc, 0x5a048dff, 0x8ecee914, 0x7ca56a17, 0x6ff599e3, 0x9d9e1ae0, | ||
| 0xd3d3e1ab, 0x21b862a8, 0x32e8915c, 0xc083125f, 0x144976b4, 0xe622f5b7, 0xf5720643, 0x07198540, | ||
| 0x590ab964, 0xab613a67, 0xb831c993, 0x4a5a4a90, 0x9e902e7b, 0x6cfbad78, 0x7fab5e8c, 0x8dc0dd8f, | ||
| 0xe330a81a, 0x115b2b19, 0x020bd8ed, 0xf0605bee, 0x24aa3f05, 0xd6c1bc06, 0xc5914ff2, 0x37faccf1, | ||
| 0x69e9f0d5, 0x9b8273d6, 0x88d28022, 0x7ab90321, 0xae7367ca, 0x5c18e4c9, 0x4f48173d, 0xbd23943e, | ||
| 0xf36e6f75, 0x0105ec76, 0x12551f82, 0xe03e9c81, 0x34f4f86a, 0xc69f7b69, 0xd5cf889d, 0x27a40b9e, | ||
| 0x79b737ba, 0x8bdcb4b9, 0x988c474d, 0x6ae7c44e, 0xbe2da0a5, 0x4c4623a6, 0x5f16d052, 0xad7d5351, | ||
| ]), | ||
| } | ||
| /** | ||
@@ -95,2 +143,3 @@ * CRC32 checksum stream | ||
| * @param {Number} [options.seed=0] | ||
| * @param {Int32Array} [options.table=crc32.TABLE.DEFAULT] | ||
| * @returns {CRC32Stream} | ||
@@ -106,2 +155,3 @@ */ | ||
| options.seed : 0 | ||
| this.crcTable = options && ( options.table || crc32.TABLE.DEFAULT ) | ||
| } | ||
@@ -123,3 +173,3 @@ | ||
| this.bytesRead += chunk.length | ||
| this.crc = crc32( chunk, this.crc ) | ||
| this.crc = crc32( chunk, this.crc, this.crcTable ) | ||
| next() | ||
@@ -126,0 +176,0 @@ } |
| { | ||
| "name": "cyclic-32", | ||
| "version": "1.0.2", | ||
| "version": "1.1.0", | ||
| "description": "Tiny, streaming, seedable CRC32 library, compatible with the crypto.Hash API", | ||
@@ -5,0 +5,0 @@ "license": "MIT", |
New alerts
License Policy Violation
LicenseThis package is not allowed per your license policy. Review the package's license to ensure compliance.
Found 1 instance in 1 package
Fixed alerts
License Policy Violation
LicenseThis package is not allowed per your license policy. Review the package's license to ensure compliance.
Found 1 instance in 1 package
Improved metrics
- Total package byte prevSize
- increased by74.45%
18636
- Number of package files
- increased by20%
6
- Lines of code
- increased by79.84%
232
No dependency changes