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Use Intel optimized code (ssse3, avx, avx2) to calculate sha256

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Anis Elleuch
2015-02-21 13:11:15 +01:00
parent 3d70b96ae9
commit e89271b8f5
5 changed files with 331 additions and 51 deletions
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pkg/utils/crypto/sha256/sha256block.go
+23
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// +build amd64
package sha256
// #cgo CFLAGS: -DHAS_SSE41 -DHAS_AVX -DHAS_AVX2
// #include <stdint.h>
// void sha256_transform_ssse3 (const char *input_data, uint32_t *digest, unsigned long num_blks);
// void sha256_transform_avx (const char *input_data, uint32_t *digest, unsigned long num_blks);
// void sha256_transform_rorx (const char *input_data, uint32_t *digest, unsigned long num_blks);
import "C"
import "unsafe"
func blockSSE(dig *digest, p []byte) {
C.sha256_transform_ssse3((*C.char)(unsafe.Pointer(&p[0])), (*C.uint32_t)(unsafe.Pointer(&dig.h[0])), (C.ulong)(len(p)/64))
}
func blockAVX(dig *digest, p []byte) {
C.sha256_transform_avx((*C.char)(unsafe.Pointer(&p[0])), (*C.uint32_t)(unsafe.Pointer(&dig.h[0])), (C.ulong)(len(p)/64))
}
func blockAVX2(dig *digest, p []byte) {
C.sha256_transform_rorx((*C.char)(unsafe.Pointer(&p[0])), (*C.uint32_t)(unsafe.Pointer(&dig.h[0])), (C.ulong)(len(p)/64))
}