CoCalc -- crc.cpp

GitHub Repository: folium-app/Folium
Path: blob/a-new-beginning/SharedDependencies/Sources/cryptopp/crc.cpp
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// crc.cpp - originally written and placed in the public domain by Wei Dai
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#include "pch.h"
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#include "config.h"
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#include "crc.h"
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#include "misc.h"
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#include "cpu.h"
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NAMESPACE_BEGIN(CryptoPP)
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// crc_simd.cpp
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#if (CRYPTOPP_ARM_CRC32_AVAILABLE)
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extern void CRC32_Update_ARMV8(const byte *s, size_t n, word32& c);
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extern void CRC32C_Update_ARMV8(const byte *s, size_t n, word32& c);
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#endif
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// crc_simd.cpp
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#if (CRYPTOPP_SSE42_AVAILABLE)
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extern void CRC32C_Update_SSE42(const byte *s, size_t n, word32& c);
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#endif
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/* Table of CRC-32's of all single byte values (made by makecrc.c) */
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const word32 CRC32::m_tab[] = {
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#if (CRYPTOPP_LITTLE_ENDIAN)
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	0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL, 0x076dc419L,
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	0x706af48fL, 0xe963a535L, 0x9e6495a3L, 0x0edb8832L, 0x79dcb8a4L,
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	0xe0d5e91eL, 0x97d2d988L, 0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d07L,
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	0x90bf1d91L, 0x1db71064L, 0x6ab020f2L, 0xf3b97148L, 0x84be41deL,
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	0x1adad47dL, 0x6ddde4ebL, 0xf4d4b551L, 0x83d385c7L, 0x136c9856L,
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	0x646ba8c0L, 0xfd62f97aL, 0x8a65c9ecL, 0x14015c4fL, 0x63066cd9L,
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	0xfa0f3d63L, 0x8d080df5L, 0x3b6e20c8L, 0x4c69105eL, 0xd56041e4L,
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	0xa2677172L, 0x3c03e4d1L, 0x4b04d447L, 0xd20d85fdL, 0xa50ab56bL,
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	0x35b5a8faL, 0x42b2986cL, 0xdbbbc9d6L, 0xacbcf940L, 0x32d86ce3L,
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	0x45df5c75L, 0xdcd60dcfL, 0xabd13d59L, 0x26d930acL, 0x51de003aL,
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	0xc8d75180L, 0xbfd06116L, 0x21b4f4b5L, 0x56b3c423L, 0xcfba9599L,
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	0xb8bda50fL, 0x2802b89eL, 0x5f058808L, 0xc60cd9b2L, 0xb10be924L,
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	0x2f6f7c87L, 0x58684c11L, 0xc1611dabL, 0xb6662d3dL, 0x76dc4190L,
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	0x01db7106L, 0x98d220bcL, 0xefd5102aL, 0x71b18589L, 0x06b6b51fL,
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	0x9fbfe4a5L, 0xe8b8d433L, 0x7807c9a2L, 0x0f00f934L, 0x9609a88eL,
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	0xe10e9818L, 0x7f6a0dbbL, 0x086d3d2dL, 0x91646c97L, 0xe6635c01L,
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	0x6b6b51f4L, 0x1c6c6162L, 0x856530d8L, 0xf262004eL, 0x6c0695edL,
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	0x1b01a57bL, 0x8208f4c1L, 0xf50fc457L, 0x65b0d9c6L, 0x12b7e950L,
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	0x8bbeb8eaL, 0xfcb9887cL, 0x62dd1ddfL, 0x15da2d49L, 0x8cd37cf3L,
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	0xfbd44c65L, 0x4db26158L, 0x3ab551ceL, 0xa3bc0074L, 0xd4bb30e2L,
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	0x4adfa541L, 0x3dd895d7L, 0xa4d1c46dL, 0xd3d6f4fbL, 0x4369e96aL,
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	0x346ed9fcL, 0xad678846L, 0xda60b8d0L, 0x44042d73L, 0x33031de5L,
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	0xaa0a4c5fL, 0xdd0d7cc9L, 0x5005713cL, 0x270241aaL, 0xbe0b1010L,
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	0xc90c2086L, 0x5768b525L, 0x206f85b3L, 0xb966d409L, 0xce61e49fL,
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	0x5edef90eL, 0x29d9c998L, 0xb0d09822L, 0xc7d7a8b4L, 0x59b33d17L,
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	0x2eb40d81L, 0xb7bd5c3bL, 0xc0ba6cadL, 0xedb88320L, 0x9abfb3b6L,
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	0x03b6e20cL, 0x74b1d29aL, 0xead54739L, 0x9dd277afL, 0x04db2615L,
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	0x73dc1683L, 0xe3630b12L, 0x94643b84L, 0x0d6d6a3eL, 0x7a6a5aa8L,
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	0xe40ecf0bL, 0x9309ff9dL, 0x0a00ae27L, 0x7d079eb1L, 0xf00f9344L,
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	0x8708a3d2L, 0x1e01f268L, 0x6906c2feL, 0xf762575dL, 0x806567cbL,
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	0x196c3671L, 0x6e6b06e7L, 0xfed41b76L, 0x89d32be0L, 0x10da7a5aL,
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	0x67dd4accL, 0xf9b9df6fL, 0x8ebeeff9L, 0x17b7be43L, 0x60b08ed5L,
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	0xd6d6a3e8L, 0xa1d1937eL, 0x38d8c2c4L, 0x4fdff252L, 0xd1bb67f1L,
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	0xa6bc5767L, 0x3fb506ddL, 0x48b2364bL, 0xd80d2bdaL, 0xaf0a1b4cL,
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	0x36034af6L, 0x41047a60L, 0xdf60efc3L, 0xa867df55L, 0x316e8eefL,
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	0x4669be79L, 0xcb61b38cL, 0xbc66831aL, 0x256fd2a0L, 0x5268e236L,
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	0xcc0c7795L, 0xbb0b4703L, 0x220216b9L, 0x5505262fL, 0xc5ba3bbeL,
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	0xb2bd0b28L, 0x2bb45a92L, 0x5cb36a04L, 0xc2d7ffa7L, 0xb5d0cf31L,
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	0x2cd99e8bL, 0x5bdeae1dL, 0x9b64c2b0L, 0xec63f226L, 0x756aa39cL,
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	0x026d930aL, 0x9c0906a9L, 0xeb0e363fL, 0x72076785L, 0x05005713L,
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	0x95bf4a82L, 0xe2b87a14L, 0x7bb12baeL, 0x0cb61b38L, 0x92d28e9bL,
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	0xe5d5be0dL, 0x7cdcefb7L, 0x0bdbdf21L, 0x86d3d2d4L, 0xf1d4e242L,
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	0x68ddb3f8L, 0x1fda836eL, 0x81be16cdL, 0xf6b9265bL, 0x6fb077e1L,
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	0x18b74777L, 0x88085ae6L, 0xff0f6a70L, 0x66063bcaL, 0x11010b5cL,
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	0x8f659effL, 0xf862ae69L, 0x616bffd3L, 0x166ccf45L, 0xa00ae278L,
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	0xd70dd2eeL, 0x4e048354L, 0x3903b3c2L, 0xa7672661L, 0xd06016f7L,
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	0x4969474dL, 0x3e6e77dbL, 0xaed16a4aL, 0xd9d65adcL, 0x40df0b66L,
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	0x37d83bf0L, 0xa9bcae53L, 0xdebb9ec5L, 0x47b2cf7fL, 0x30b5ffe9L,
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	0xbdbdf21cL, 0xcabac28aL, 0x53b39330L, 0x24b4a3a6L, 0xbad03605L,
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	0xcdd70693L, 0x54de5729L, 0x23d967bfL, 0xb3667a2eL, 0xc4614ab8L,
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	0x5d681b02L, 0x2a6f2b94L, 0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL,
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	0x2d02ef8dL
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#else
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	0x00000000L, 0x96300777L, 0x2c610eeeL, 0xba510999L, 0x19c46d07L,
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	0x8ff46a70L, 0x35a563e9L, 0xa395649eL, 0x3288db0eL, 0xa4b8dc79L,
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	0x1ee9d5e0L, 0x88d9d297L, 0x2b4cb609L, 0xbd7cb17eL, 0x072db8e7L,
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	0x911dbf90L, 0x6410b71dL, 0xf220b06aL, 0x4871b9f3L, 0xde41be84L,
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	0x7dd4da1aL, 0xebe4dd6dL, 0x51b5d4f4L, 0xc785d383L, 0x56986c13L,
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	0xc0a86b64L, 0x7af962fdL, 0xecc9658aL, 0x4f5c0114L, 0xd96c0663L,
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	0x633d0ffaL, 0xf50d088dL, 0xc8206e3bL, 0x5e10694cL, 0xe44160d5L,
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	0x727167a2L, 0xd1e4033cL, 0x47d4044bL, 0xfd850dd2L, 0x6bb50aa5L,
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	0xfaa8b535L, 0x6c98b242L, 0xd6c9bbdbL, 0x40f9bcacL, 0xe36cd832L,
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	0x755cdf45L, 0xcf0dd6dcL, 0x593dd1abL, 0xac30d926L, 0x3a00de51L,
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	0x8051d7c8L, 0x1661d0bfL, 0xb5f4b421L, 0x23c4b356L, 0x9995bacfL,
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	0x0fa5bdb8L, 0x9eb80228L, 0x0888055fL, 0xb2d90cc6L, 0x24e90bb1L,
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	0x877c6f2fL, 0x114c6858L, 0xab1d61c1L, 0x3d2d66b6L, 0x9041dc76L,
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	0x0671db01L, 0xbc20d298L, 0x2a10d5efL, 0x8985b171L, 0x1fb5b606L,
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	0xa5e4bf9fL, 0x33d4b8e8L, 0xa2c90778L, 0x34f9000fL, 0x8ea80996L,
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	0x18980ee1L, 0xbb0d6a7fL, 0x2d3d6d08L, 0x976c6491L, 0x015c63e6L,
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	0xf4516b6bL, 0x62616c1cL, 0xd8306585L, 0x4e0062f2L, 0xed95066cL,
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	0x7ba5011bL, 0xc1f40882L, 0x57c40ff5L, 0xc6d9b065L, 0x50e9b712L,
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	0xeab8be8bL, 0x7c88b9fcL, 0xdf1ddd62L, 0x492dda15L, 0xf37cd38cL,
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	0x654cd4fbL, 0x5861b24dL, 0xce51b53aL, 0x7400bca3L, 0xe230bbd4L,
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	0x41a5df4aL, 0xd795d83dL, 0x6dc4d1a4L, 0xfbf4d6d3L, 0x6ae96943L,
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	0xfcd96e34L, 0x468867adL, 0xd0b860daL, 0x732d0444L, 0xe51d0333L,
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	0x5f4c0aaaL, 0xc97c0dddL, 0x3c710550L, 0xaa410227L, 0x10100bbeL,
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	0x86200cc9L, 0x25b56857L, 0xb3856f20L, 0x09d466b9L, 0x9fe461ceL,
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	0x0ef9de5eL, 0x98c9d929L, 0x2298d0b0L, 0xb4a8d7c7L, 0x173db359L,
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	0x810db42eL, 0x3b5cbdb7L, 0xad6cbac0L, 0x2083b8edL, 0xb6b3bf9aL,
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	0x0ce2b603L, 0x9ad2b174L, 0x3947d5eaL, 0xaf77d29dL, 0x1526db04L,
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	0x8316dc73L, 0x120b63e3L, 0x843b6494L, 0x3e6a6d0dL, 0xa85a6a7aL,
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	0x0bcf0ee4L, 0x9dff0993L, 0x27ae000aL, 0xb19e077dL, 0x44930ff0L,
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	0xd2a30887L, 0x68f2011eL, 0xfec20669L, 0x5d5762f7L, 0xcb676580L,
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	0x71366c19L, 0xe7066b6eL, 0x761bd4feL, 0xe02bd389L, 0x5a7ada10L,
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	0xcc4add67L, 0x6fdfb9f9L, 0xf9efbe8eL, 0x43beb717L, 0xd58eb060L,
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	0xe8a3d6d6L, 0x7e93d1a1L, 0xc4c2d838L, 0x52f2df4fL, 0xf167bbd1L,
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	0x6757bca6L, 0xdd06b53fL, 0x4b36b248L, 0xda2b0dd8L, 0x4c1b0aafL,
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	0xf64a0336L, 0x607a0441L, 0xc3ef60dfL, 0x55df67a8L, 0xef8e6e31L,
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	0x79be6946L, 0x8cb361cbL, 0x1a8366bcL, 0xa0d26f25L, 0x36e26852L,
114
	0x95770cccL, 0x03470bbbL, 0xb9160222L, 0x2f260555L, 0xbe3bbac5L,
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	0x280bbdb2L, 0x925ab42bL, 0x046ab35cL, 0xa7ffd7c2L, 0x31cfd0b5L,
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	0x8b9ed92cL, 0x1daede5bL, 0xb0c2649bL, 0x26f263ecL, 0x9ca36a75L,
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	0x0a936d02L, 0xa906099cL, 0x3f360eebL, 0x85670772L, 0x13570005L,
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	0x824abf95L, 0x147ab8e2L, 0xae2bb17bL, 0x381bb60cL, 0x9b8ed292L,
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	0x0dbed5e5L, 0xb7efdc7cL, 0x21dfdb0bL, 0xd4d2d386L, 0x42e2d4f1L,
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	0xf8b3dd68L, 0x6e83da1fL, 0xcd16be81L, 0x5b26b9f6L, 0xe177b06fL,
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	0x7747b718L, 0xe65a0888L, 0x706a0fffL, 0xca3b0666L, 0x5c0b0111L,
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	0xff9e658fL, 0x69ae62f8L, 0xd3ff6b61L, 0x45cf6c16L, 0x78e20aa0L,
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	0xeed20dd7L, 0x5483044eL, 0xc2b30339L, 0x612667a7L, 0xf71660d0L,
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	0x4d476949L, 0xdb776e3eL, 0x4a6ad1aeL, 0xdc5ad6d9L, 0x660bdf40L,
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	0xf03bd837L, 0x53aebca9L, 0xc59ebbdeL, 0x7fcfb247L, 0xe9ffb530L,
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	0x1cf2bdbdL, 0x8ac2bacaL, 0x3093b353L, 0xa6a3b424L, 0x0536d0baL,
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	0x9306d7cdL, 0x2957de54L, 0xbf67d923L, 0x2e7a66b3L, 0xb84a61c4L,
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	0x021b685dL, 0x942b6f2aL, 0x37be0bb4L, 0xa18e0cc3L, 0x1bdf055aL,
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	0x8def022dL
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#endif
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};
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std::string CRC32::AlgorithmProvider() const
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{
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#if (CRYPTOPP_ARM_CRC32_AVAILABLE)
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	if (HasCRC32())
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		return "ARMv8";
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#endif
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	return "C++";
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}
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CRC32::CRC32()
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{
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	Reset();
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}
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void CRC32::Update(const byte *s, size_t n)
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{
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#if (CRYPTOPP_ARM_CRC32_AVAILABLE)
150
	if (HasCRC32())
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	{
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		CRC32_Update_ARMV8(s, n, m_crc);
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		return;
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	}
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#endif
156

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	word32 crc = m_crc;
158

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	for(; !IsAligned<word32>(s) && n > 0; n--)
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		crc = m_tab[CRC32_INDEX(crc) ^ *s++] ^ CRC32_SHIFTED(crc);
161

162
	while (n >= 4)
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	{
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		crc ^= *(const word32 *)(void*)s;
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		crc = m_tab[CRC32_INDEX(crc)] ^ CRC32_SHIFTED(crc);
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		crc = m_tab[CRC32_INDEX(crc)] ^ CRC32_SHIFTED(crc);
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		crc = m_tab[CRC32_INDEX(crc)] ^ CRC32_SHIFTED(crc);
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		crc = m_tab[CRC32_INDEX(crc)] ^ CRC32_SHIFTED(crc);
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		n -= 4; s += 4;
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	}
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	while (n--)
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		crc = m_tab[CRC32_INDEX(crc) ^ *s++] ^ CRC32_SHIFTED(crc);
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175
	m_crc = crc;
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}
177

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void CRC32::TruncatedFinal(byte *hash, size_t size)
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{
180
	ThrowIfInvalidTruncatedSize(size);
181

182
	m_crc ^= CRC32_NEGL;
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	for (size_t i=0; i<size; i++)
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		hash[i] = GetCrcByte(i);
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186
	Reset();
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}
188

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// Castagnoli CRC32C (iSCSI)
190

191
const word32 CRC32C::m_tab[] = {
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#if (CRYPTOPP_LITTLE_ENDIAN)
193
    0x00000000L, 0xf26b8303L, 0xe13b70f7L, 0x1350f3f4L, 0xc79a971fL,
194
    0x35f1141cL, 0x26a1e7e8L, 0xd4ca64ebL, 0x8ad958cfL, 0x78b2dbccL,
195
    0x6be22838L, 0x9989ab3bL, 0x4d43cfd0L, 0xbf284cd3L, 0xac78bf27L,
196
    0x5e133c24L, 0x105ec76fL, 0xe235446cL, 0xf165b798L, 0x030e349bL,
197
    0xd7c45070L, 0x25afd373L, 0x36ff2087L, 0xc494a384L, 0x9a879fa0L,
198
    0x68ec1ca3L, 0x7bbcef57L, 0x89d76c54L, 0x5d1d08bfL, 0xaf768bbcL,
199
    0xbc267848L, 0x4e4dfb4bL, 0x20bd8edeL, 0xd2d60dddL, 0xc186fe29L,
200
    0x33ed7d2aL, 0xe72719c1L, 0x154c9ac2L, 0x061c6936L, 0xf477ea35L,
201
    0xaa64d611L, 0x580f5512L, 0x4b5fa6e6L, 0xb93425e5L, 0x6dfe410eL,
202
    0x9f95c20dL, 0x8cc531f9L, 0x7eaeb2faL, 0x30e349b1L, 0xc288cab2L,
203
    0xd1d83946L, 0x23b3ba45L, 0xf779deaeL, 0x05125dadL, 0x1642ae59L,
204
    0xe4292d5aL, 0xba3a117eL, 0x4851927dL, 0x5b016189L, 0xa96ae28aL,
205
    0x7da08661L, 0x8fcb0562L, 0x9c9bf696L, 0x6ef07595L, 0x417b1dbcL,
206
    0xb3109ebfL, 0xa0406d4bL, 0x522bee48L, 0x86e18aa3L, 0x748a09a0L,
207
    0x67dafa54L, 0x95b17957L, 0xcba24573L, 0x39c9c670L, 0x2a993584L,
208
    0xd8f2b687L, 0x0c38d26cL, 0xfe53516fL, 0xed03a29bL, 0x1f682198L,
209
    0x5125dad3L, 0xa34e59d0L, 0xb01eaa24L, 0x42752927L, 0x96bf4dccL,
210
    0x64d4cecfL, 0x77843d3bL, 0x85efbe38L, 0xdbfc821cL, 0x2997011fL,
211
    0x3ac7f2ebL, 0xc8ac71e8L, 0x1c661503L, 0xee0d9600L, 0xfd5d65f4L,
212
    0x0f36e6f7L, 0x61c69362L, 0x93ad1061L, 0x80fde395L, 0x72966096L,
213
    0xa65c047dL, 0x5437877eL, 0x4767748aL, 0xb50cf789L, 0xeb1fcbadL,
214
    0x197448aeL, 0x0a24bb5aL, 0xf84f3859L, 0x2c855cb2L, 0xdeeedfb1L,
215
    0xcdbe2c45L, 0x3fd5af46L, 0x7198540dL, 0x83f3d70eL, 0x90a324faL,
216
    0x62c8a7f9L, 0xb602c312L, 0x44694011L, 0x5739b3e5L, 0xa55230e6L,
217
    0xfb410cc2L, 0x092a8fc1L, 0x1a7a7c35L, 0xe811ff36L, 0x3cdb9bddL,
218
    0xceb018deL, 0xdde0eb2aL, 0x2f8b6829L, 0x82f63b78L, 0x709db87bL,
219
    0x63cd4b8fL, 0x91a6c88cL, 0x456cac67L, 0xb7072f64L, 0xa457dc90L,
220
    0x563c5f93L, 0x082f63b7L, 0xfa44e0b4L, 0xe9141340L, 0x1b7f9043L,
221
    0xcfb5f4a8L, 0x3dde77abL, 0x2e8e845fL, 0xdce5075cL, 0x92a8fc17L,
222
    0x60c37f14L, 0x73938ce0L, 0x81f80fe3L, 0x55326b08L, 0xa759e80bL,
223
    0xb4091bffL, 0x466298fcL, 0x1871a4d8L, 0xea1a27dbL, 0xf94ad42fL,
224
    0x0b21572cL, 0xdfeb33c7L, 0x2d80b0c4L, 0x3ed04330L, 0xccbbc033L,
225
    0xa24bb5a6L, 0x502036a5L, 0x4370c551L, 0xb11b4652L, 0x65d122b9L,
226
    0x97baa1baL, 0x84ea524eL, 0x7681d14dL, 0x2892ed69L, 0xdaf96e6aL,
227
    0xc9a99d9eL, 0x3bc21e9dL, 0xef087a76L, 0x1d63f975L, 0x0e330a81L,
228
    0xfc588982L, 0xb21572c9L, 0x407ef1caL, 0x532e023eL, 0xa145813dL,
229
    0x758fe5d6L, 0x87e466d5L, 0x94b49521L, 0x66df1622L, 0x38cc2a06L,
230
    0xcaa7a905L, 0xd9f75af1L, 0x2b9cd9f2L, 0xff56bd19L, 0x0d3d3e1aL,
231
    0x1e6dcdeeL, 0xec064eedL, 0xc38d26c4L, 0x31e6a5c7L, 0x22b65633L,
232
    0xd0ddd530L, 0x0417b1dbL, 0xf67c32d8L, 0xe52cc12cL, 0x1747422fL,
233
    0x49547e0bL, 0xbb3ffd08L, 0xa86f0efcL, 0x5a048dffL, 0x8ecee914L,
234
    0x7ca56a17L, 0x6ff599e3L, 0x9d9e1ae0L, 0xd3d3e1abL, 0x21b862a8L,
235
    0x32e8915cL, 0xc083125fL, 0x144976b4L, 0xe622f5b7L, 0xf5720643L,
236
    0x07198540L, 0x590ab964L, 0xab613a67L, 0xb831c993L, 0x4a5a4a90L,
237
    0x9e902e7bL, 0x6cfbad78L, 0x7fab5e8cL, 0x8dc0dd8fL, 0xe330a81aL,
238
    0x115b2b19L, 0x020bd8edL, 0xf0605beeL, 0x24aa3f05L, 0xd6c1bc06L,
239
    0xc5914ff2L, 0x37faccf1L, 0x69e9f0d5L, 0x9b8273d6L, 0x88d28022L,
240
    0x7ab90321L, 0xae7367caL, 0x5c18e4c9L, 0x4f48173dL, 0xbd23943eL,
241
    0xf36e6f75L, 0x0105ec76L, 0x12551f82L, 0xe03e9c81L, 0x34f4f86aL,
242
    0xc69f7b69L, 0xd5cf889dL, 0x27a40b9eL, 0x79b737baL, 0x8bdcb4b9L,
243
    0x988c474dL, 0x6ae7c44eL, 0xbe2da0a5L, 0x4c4623a6L, 0x5f16d052L,
244
    0xad7d5351L
245
#else
246
    0x00000000L, 0x03836bf2L, 0xf7703be1L, 0xf4f35013L, 0x1f979ac7L,
247
    0x1c14f135L, 0xe8e7a126L, 0xeb64cad4L, 0xcf58d98aL, 0xccdbb278L,
248
    0x3828e26bL, 0x3bab8999L, 0xd0cf434dL, 0xd34c28bfL, 0x27bf78acL,
249
    0x243c135eL, 0x6fc75e10L, 0x6c4435e2L, 0x98b765f1L, 0x9b340e03L,
250
    0x7050c4d7L, 0x73d3af25L, 0x8720ff36L, 0x84a394c4L, 0xa09f879aL,
251
    0xa31cec68L, 0x57efbc7bL, 0x546cd789L, 0xbf081d5dL, 0xbc8b76afL,
252
    0x487826bcL, 0x4bfb4d4eL, 0xde8ebd20L, 0xdd0dd6d2L, 0x29fe86c1L,
253
    0x2a7ded33L, 0xc11927e7L, 0xc29a4c15L, 0x36691c06L, 0x35ea77f4L,
254
    0x11d664aaL, 0x12550f58L, 0xe6a65f4bL, 0xe52534b9L, 0x0e41fe6dL,
255
    0x0dc2959fL, 0xf931c58cL, 0xfab2ae7eL, 0xb149e330L, 0xb2ca88c2L,
256
    0x4639d8d1L, 0x45bab323L, 0xaede79f7L, 0xad5d1205L, 0x59ae4216L,
257
    0x5a2d29e4L, 0x7e113abaL, 0x7d925148L, 0x8961015bL, 0x8ae26aa9L,
258
    0x6186a07dL, 0x6205cb8fL, 0x96f69b9cL, 0x9575f06eL, 0xbc1d7b41L,
259
    0xbf9e10b3L, 0x4b6d40a0L, 0x48ee2b52L, 0xa38ae186L, 0xa0098a74L,
260
    0x54fada67L, 0x5779b195L, 0x7345a2cbL, 0x70c6c939L, 0x8435992aL,
261
    0x87b6f2d8L, 0x6cd2380cL, 0x6f5153feL, 0x9ba203edL, 0x9821681fL,
262
    0xd3da2551L, 0xd0594ea3L, 0x24aa1eb0L, 0x27297542L, 0xcc4dbf96L,
263
    0xcfced464L, 0x3b3d8477L, 0x38beef85L, 0x1c82fcdbL, 0x1f019729L,
264
    0xebf2c73aL, 0xe871acc8L, 0x0315661cL, 0x00960deeL, 0xf4655dfdL,
265
    0xf7e6360fL, 0x6293c661L, 0x6110ad93L, 0x95e3fd80L, 0x96609672L,
266
    0x7d045ca6L, 0x7e873754L, 0x8a746747L, 0x89f70cb5L, 0xadcb1febL,
267
    0xae487419L, 0x5abb240aL, 0x59384ff8L, 0xb25c852cL, 0xb1dfeedeL,
268
    0x452cbecdL, 0x46afd53fL, 0x0d549871L, 0x0ed7f383L, 0xfa24a390L,
269
    0xf9a7c862L, 0x12c302b6L, 0x11406944L, 0xe5b33957L, 0xe63052a5L,
270
    0xc20c41fbL, 0xc18f2a09L, 0x357c7a1aL, 0x36ff11e8L, 0xdd9bdb3cL,
271
    0xde18b0ceL, 0x2aebe0ddL, 0x29688b2fL, 0x783bf682L, 0x7bb89d70L,
272
    0x8f4bcd63L, 0x8cc8a691L, 0x67ac6c45L, 0x642f07b7L, 0x90dc57a4L,
273
    0x935f3c56L, 0xb7632f08L, 0xb4e044faL, 0x401314e9L, 0x43907f1bL,
274
    0xa8f4b5cfL, 0xab77de3dL, 0x5f848e2eL, 0x5c07e5dcL, 0x17fca892L,
275
    0x147fc360L, 0xe08c9373L, 0xe30ff881L, 0x086b3255L, 0x0be859a7L,
276
    0xff1b09b4L, 0xfc986246L, 0xd8a47118L, 0xdb271aeaL, 0x2fd44af9L,
277
    0x2c57210bL, 0xc733ebdfL, 0xc4b0802dL, 0x3043d03eL, 0x33c0bbccL,
278
    0xa6b54ba2L, 0xa5362050L, 0x51c57043L, 0x52461bb1L, 0xb922d165L,
279
    0xbaa1ba97L, 0x4e52ea84L, 0x4dd18176L, 0x69ed9228L, 0x6a6ef9daL,
280
    0x9e9da9c9L, 0x9d1ec23bL, 0x767a08efL, 0x75f9631dL, 0x810a330eL,
281
    0x828958fcL, 0xc97215b2L, 0xcaf17e40L, 0x3e022e53L, 0x3d8145a1L,
282
    0xd6e58f75L, 0xd566e487L, 0x2195b494L, 0x2216df66L, 0x062acc38L,
283
    0x05a9a7caL, 0xf15af7d9L, 0xf2d99c2bL, 0x19bd56ffL, 0x1a3e3d0dL,
284
    0xeecd6d1eL, 0xed4e06ecL, 0xc4268dc3L, 0xc7a5e631L, 0x3356b622L,
285
    0x30d5ddd0L, 0xdbb11704L, 0xd8327cf6L, 0x2cc12ce5L, 0x2f424717L,
286
    0x0b7e5449L, 0x08fd3fbbL, 0xfc0e6fa8L, 0xff8d045aL, 0x14e9ce8eL,
287
    0x176aa57cL, 0xe399f56fL, 0xe01a9e9dL, 0xabe1d3d3L, 0xa862b821L,
288
    0x5c91e832L, 0x5f1283c0L, 0xb4764914L, 0xb7f522e6L, 0x430672f5L,
289
    0x40851907L, 0x64b90a59L, 0x673a61abL, 0x93c931b8L, 0x904a5a4aL,
290
    0x7b2e909eL, 0x78adfb6cL, 0x8c5eab7fL, 0x8fddc08dL, 0x1aa830e3L,
291
    0x192b5b11L, 0xedd80b02L, 0xee5b60f0L, 0x053faa24L, 0x06bcc1d6L,
292
    0xf24f91c5L, 0xf1ccfa37L, 0xd5f0e969L, 0xd673829bL, 0x2280d288L,
293
    0x2103b97aL, 0xca6773aeL, 0xc9e4185cL, 0x3d17484fL, 0x3e9423bdL,
294
    0x756f6ef3L, 0x76ec0501L, 0x821f5512L, 0x819c3ee0L, 0x6af8f434L,
295
    0x697b9fc6L, 0x9d88cfd5L, 0x9e0ba427L, 0xba37b779L, 0xb9b4dc8bL,
296
    0x4d478c98L, 0x4ec4e76aL, 0xa5a02dbeL, 0xa623464cL, 0x52d0165fL,
297
    0x51537dadL
298
#endif
299
};
300

301
std::string CRC32C::AlgorithmProvider() const
302
{
303
#if (CRYPTOPP_ARM_CRC32_AVAILABLE)
304
	if (HasCRC32())
305
		return "ARMv8";
306
#endif
307
#if (CRYPTOPP_SSE42_AVAILABLE)
308
	if (HasSSE42())
309
		return "SSE4.2";
310
#endif
311
	return "C++";
312
}
313

314
CRC32C::CRC32C()
315
{
316
	Reset();
317
}
318

319
void CRC32C::Update(const byte *s, size_t n)
320
{
321
#if (CRYPTOPP_SSE42_AVAILABLE)
322
	if (HasSSE42())
323
	{
324
		CRC32C_Update_SSE42(s, n, m_crc);
325
		return;
326
	}
327
#elif (CRYPTOPP_ARM_CRC32_AVAILABLE)
328
	if (HasCRC32())
329
	{
330
		CRC32C_Update_ARMV8(s, n, m_crc);
331
		return;
332
	}
333
#endif
334

335
	word32 crc = m_crc;
336

337
	for(; !IsAligned<word32>(s) && n > 0; n--)
338
		crc = m_tab[CRC32_INDEX(crc) ^ *s++] ^ CRC32_SHIFTED(crc);
339

340
	while (n >= 4)
341
	{
342
		crc ^= *(const word32 *)(void*)s;
343
		crc = m_tab[CRC32_INDEX(crc)] ^ CRC32_SHIFTED(crc);
344
		crc = m_tab[CRC32_INDEX(crc)] ^ CRC32_SHIFTED(crc);
345
		crc = m_tab[CRC32_INDEX(crc)] ^ CRC32_SHIFTED(crc);
346
		crc = m_tab[CRC32_INDEX(crc)] ^ CRC32_SHIFTED(crc);
347
		n -= 4; s += 4;
348
	}
349

350
	while (n--)
351
		crc = m_tab[CRC32_INDEX(crc) ^ *s++] ^ CRC32_SHIFTED(crc);
352

353
	m_crc = crc;
354
}
355

356
void CRC32C::TruncatedFinal(byte *hash, size_t size)
357
{
358
	ThrowIfInvalidTruncatedSize(size);
359

360
	m_crc ^= CRC32_NEGL;
361
	for (size_t i=0; i<size; i++)
362
		hash[i] = GetCrcByte(i);
363

364
	Reset();
365
}
366

367
NAMESPACE_END
368

369
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