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Diffstat (limited to 'NorthstarDedicatedTest/sha256.h')
| -rw-r--r-- | NorthstarDedicatedTest/sha256.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/NorthstarDedicatedTest/sha256.h b/NorthstarDedicatedTest/sha256.h new file mode 100644 index 00000000..dec51173 --- /dev/null +++ b/NorthstarDedicatedTest/sha256.h @@ -0,0 +1,50 @@ +#ifndef SHA256_H +#define SHA256_H + +class SHA256 +{ + protected: + typedef unsigned char uint8; + typedef unsigned int uint32; + typedef unsigned long long uint64; + + const static uint32 sha256_k[]; + static const unsigned int SHA224_256_BLOCK_SIZE = (512 / 8); + + public: + void init(); + void update(const unsigned char* message, unsigned int len); + void final(unsigned char* digest); + static const unsigned int DIGEST_SIZE = (256 / 8); + + protected: + void transform(const unsigned char* message, unsigned int block_nb); + unsigned int m_tot_len; + unsigned int m_len; + unsigned char m_block[2 * SHA224_256_BLOCK_SIZE]; + uint32 m_h[8]; +}; + +std::string sha256(std::string input); + +#define SHA2_SHFR(x, n) (x >> n) +#define SHA2_ROTR(x, n) ((x >> n) | (x << ((sizeof(x) << 3) - n))) +#define SHA2_ROTL(x, n) ((x << n) | (x >> ((sizeof(x) << 3) - n))) +#define SHA2_CH(x, y, z) ((x & y) ^ (~x & z)) +#define SHA2_MAJ(x, y, z) ((x & y) ^ (x & z) ^ (y & z)) +#define SHA256_F1(x) (SHA2_ROTR(x, 2) ^ SHA2_ROTR(x, 13) ^ SHA2_ROTR(x, 22)) +#define SHA256_F2(x) (SHA2_ROTR(x, 6) ^ SHA2_ROTR(x, 11) ^ SHA2_ROTR(x, 25)) +#define SHA256_F3(x) (SHA2_ROTR(x, 7) ^ SHA2_ROTR(x, 18) ^ SHA2_SHFR(x, 3)) +#define SHA256_F4(x) (SHA2_ROTR(x, 17) ^ SHA2_ROTR(x, 19) ^ SHA2_SHFR(x, 10)) +#define SHA2_UNPACK32(x, str) \ + { \ + *((str) + 3) = (uint8)((x)); \ + *((str) + 2) = (uint8)((x) >> 8); \ + *((str) + 1) = (uint8)((x) >> 16); \ + *((str) + 0) = (uint8)((x) >> 24); \ + } +#define SHA2_PACK32(str, x) \ + { \ + *(x) = ((uint32) * ((str) + 3)) | ((uint32) * ((str) + 2) << 8) | ((uint32) * ((str) + 1) << 16) | ((uint32) * ((str) + 0) << 24); \ + } +#endif |