From 51d617e70f90a972185917ea0096c1ecef2bfa8b Mon Sep 17 00:00:00 2001 From: Bitflash-sh Date: Fri, 24 Jul 2026 11:18:11 -0300 Subject: Bitflash: fair-launch release Satoshi's bitcoin-0.1.0 reborn with RandomX CPU proof of work, anonymous .btf addressing over Nostr with CGNAT rendezvous, automatic peer discovery, a headless Linux node, and Windows GUI wallet. Fair launch, no premine, 21M cap. --- src/sha.h | 177 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 177 insertions(+) create mode 100644 src/sha.h (limited to 'src/sha.h') diff --git a/src/sha.h b/src/sha.h new file mode 100644 index 0000000..e3af7b4 --- /dev/null +++ b/src/sha.h @@ -0,0 +1,177 @@ +// This file is public domain +// SHA routines extracted as a standalone file from: +// Crypto++: a C++ Class Library of Cryptographic Schemes +// Version 5.5.2 (9/24/2007) +// http://www.cryptopp.com +#ifndef CRYPTOPP_SHA_H +#define CRYPTOPP_SHA_H +#include + +namespace CryptoPP +{ + +// +// Dependencies +// + +typedef unsigned char byte; +typedef unsigned short word16; +typedef unsigned int word32; +#if defined(_MSC_VER) || defined(__BORLANDC__) +typedef unsigned __int64 word64; +#else +typedef unsigned long long word64; +#endif + +template inline T rotlFixed(T x, unsigned int y) +{ + assert(y < sizeof(T)*8); + return T((x<>(sizeof(T)*8-y))); +} + +template inline T rotrFixed(T x, unsigned int y) +{ + assert(y < sizeof(T)*8); + return T((x>>y) | (x<<(sizeof(T)*8-y))); +} + +// ************** endian reversal *************** + +#ifdef _MSC_VER + #if _MSC_VER >= 1400 + #define CRYPTOPP_FAST_ROTATE(x) 1 + #elif _MSC_VER >= 1300 + #define CRYPTOPP_FAST_ROTATE(x) ((x) == 32 | (x) == 64) + #else + #define CRYPTOPP_FAST_ROTATE(x) ((x) == 32) + #endif +#elif (defined(__MWERKS__) && TARGET_CPU_PPC) || \ + (defined(__GNUC__) && (defined(_ARCH_PWR2) || defined(_ARCH_PWR) || defined(_ARCH_PPC) || defined(_ARCH_PPC64) || defined(_ARCH_COM))) + #define CRYPTOPP_FAST_ROTATE(x) ((x) == 32) +#elif defined(__GNUC__) && (CRYPTOPP_BOOL_X64 || CRYPTOPP_BOOL_X86) // depend on GCC's peephole optimization to generate rotate instructions + #define CRYPTOPP_FAST_ROTATE(x) 1 +#else + #define CRYPTOPP_FAST_ROTATE(x) 0 +#endif + +inline byte ByteReverse(byte value) +{ + return value; +} + +inline word16 ByteReverse(word16 value) +{ +#ifdef CRYPTOPP_BYTESWAP_AVAILABLE + return bswap_16(value); +#elif defined(_MSC_VER) && _MSC_VER >= 1300 + return _byteswap_ushort(value); +#else + return rotlFixed(value, 8U); +#endif +} + +inline word32 ByteReverse(word32 value) +{ +#if defined(__GNUC__) + __asm__ ("bswap %0" : "=r" (value) : "0" (value)); + return value; +#elif defined(CRYPTOPP_BYTESWAP_AVAILABLE) + return bswap_32(value); +#elif defined(__MWERKS__) && TARGET_CPU_PPC + return (word32)__lwbrx(&value,0); +#elif _MSC_VER >= 1400 || (_MSC_VER >= 1300 && !defined(_DLL)) + return _byteswap_ulong(value); +#elif CRYPTOPP_FAST_ROTATE(32) + // 5 instructions with rotate instruction, 9 without + return (rotrFixed(value, 8U) & 0xff00ff00) | (rotlFixed(value, 8U) & 0x00ff00ff); +#else + // 6 instructions with rotate instruction, 8 without + value = ((value & 0xFF00FF00) >> 8) | ((value & 0x00FF00FF) << 8); + return rotlFixed(value, 16U); +#endif +} + +#ifdef WORD64_AVAILABLE +inline word64 ByteReverse(word64 value) +{ +#if defined(__GNUC__) && defined(__x86_64__) + __asm__ ("bswap %0" : "=r" (value) : "0" (value)); + return value; +#elif defined(CRYPTOPP_BYTESWAP_AVAILABLE) + return bswap_64(value); +#elif defined(_MSC_VER) && _MSC_VER >= 1300 + return _byteswap_uint64(value); +#elif defined(CRYPTOPP_SLOW_WORD64) + return (word64(ByteReverse(word32(value))) << 32) | ByteReverse(word32(value>>32)); +#else + value = ((value & W64LIT(0xFF00FF00FF00FF00)) >> 8) | ((value & W64LIT(0x00FF00FF00FF00FF)) << 8); + value = ((value & W64LIT(0xFFFF0000FFFF0000)) >> 16) | ((value & W64LIT(0x0000FFFF0000FFFF)) << 16); + return rotlFixed(value, 32U); +#endif +} +#endif + + +// +// SHA +// + +// http://www.weidai.com/scan-mirror/md.html#SHA-1 +class SHA1 +{ +public: + typedef word32 HashWordType; + static void InitState(word32 *state); + static void Transform(word32 *digest, const word32 *data); + static const char * StaticAlgorithmName() {return "SHA-1";} +}; + +typedef SHA1 SHA; // for backwards compatibility + +// implements the SHA-256 standard +class SHA256 +{ +public: + typedef word32 HashWordType; + static void InitState(word32 *state); + static void Transform(word32 *digest, const word32 *data); + static const char * StaticAlgorithmName() {return "SHA-256";} +}; + +// implements the SHA-224 standard +class SHA224 +{ +public: + typedef word32 HashWordType; + static void InitState(word32 *state); + static void Transform(word32 *digest, const word32 *data) {SHA256::Transform(digest, data);} + static const char * StaticAlgorithmName() {return "SHA-224";} +}; + +#ifdef WORD64_AVAILABLE + +// implements the SHA-512 standard +class SHA512 +{ +public: + typedef word64 HashWordType; + static void InitState(word64 *state); + static void Transform(word64 *digest, const word64 *data); + static const char * StaticAlgorithmName() {return "SHA-512";} +}; + +// implements the SHA-384 standard +class SHA384 +{ +public: + typedef word64 HashWordType; + static void InitState(word64 *state); + static void Transform(word64 *digest, const word64 *data) {SHA512::Transform(digest, data);} + static const char * StaticAlgorithmName() {return "SHA-384";} +}; + +#endif + +} + +#endif -- cgit v1.2.3