diff options
Diffstat (limited to 'vendor/github.com/zeebo/blake3/internal/utils/utils.go')
| -rw-r--r-- | vendor/github.com/zeebo/blake3/internal/utils/utils.go | 60 |
1 files changed, 0 insertions, 60 deletions
diff --git a/vendor/github.com/zeebo/blake3/internal/utils/utils.go b/vendor/github.com/zeebo/blake3/internal/utils/utils.go deleted file mode 100644 index 0b36f0f0f..000000000 --- a/vendor/github.com/zeebo/blake3/internal/utils/utils.go +++ /dev/null @@ -1,60 +0,0 @@ -package utils - -import ( - "encoding/binary" - "unsafe" -) - -func SliceToArray32(bytes []byte) *[32]uint8 { return (*[32]uint8)(unsafe.Pointer(&bytes[0])) } -func SliceToArray64(bytes []byte) *[64]uint8 { return (*[64]uint8)(unsafe.Pointer(&bytes[0])) } - -func BytesToWords(bytes *[64]uint8, words *[16]uint32) { - words[0] = binary.LittleEndian.Uint32(bytes[0*4:]) - words[1] = binary.LittleEndian.Uint32(bytes[1*4:]) - words[2] = binary.LittleEndian.Uint32(bytes[2*4:]) - words[3] = binary.LittleEndian.Uint32(bytes[3*4:]) - words[4] = binary.LittleEndian.Uint32(bytes[4*4:]) - words[5] = binary.LittleEndian.Uint32(bytes[5*4:]) - words[6] = binary.LittleEndian.Uint32(bytes[6*4:]) - words[7] = binary.LittleEndian.Uint32(bytes[7*4:]) - words[8] = binary.LittleEndian.Uint32(bytes[8*4:]) - words[9] = binary.LittleEndian.Uint32(bytes[9*4:]) - words[10] = binary.LittleEndian.Uint32(bytes[10*4:]) - words[11] = binary.LittleEndian.Uint32(bytes[11*4:]) - words[12] = binary.LittleEndian.Uint32(bytes[12*4:]) - words[13] = binary.LittleEndian.Uint32(bytes[13*4:]) - words[14] = binary.LittleEndian.Uint32(bytes[14*4:]) - words[15] = binary.LittleEndian.Uint32(bytes[15*4:]) -} - -func WordsToBytes(words *[16]uint32, bytes []byte) { - bytes = bytes[:64] - binary.LittleEndian.PutUint32(bytes[0*4:1*4], words[0]) - binary.LittleEndian.PutUint32(bytes[1*4:2*4], words[1]) - binary.LittleEndian.PutUint32(bytes[2*4:3*4], words[2]) - binary.LittleEndian.PutUint32(bytes[3*4:4*4], words[3]) - binary.LittleEndian.PutUint32(bytes[4*4:5*4], words[4]) - binary.LittleEndian.PutUint32(bytes[5*4:6*4], words[5]) - binary.LittleEndian.PutUint32(bytes[6*4:7*4], words[6]) - binary.LittleEndian.PutUint32(bytes[7*4:8*4], words[7]) - binary.LittleEndian.PutUint32(bytes[8*4:9*4], words[8]) - binary.LittleEndian.PutUint32(bytes[9*4:10*4], words[9]) - binary.LittleEndian.PutUint32(bytes[10*4:11*4], words[10]) - binary.LittleEndian.PutUint32(bytes[11*4:12*4], words[11]) - binary.LittleEndian.PutUint32(bytes[12*4:13*4], words[12]) - binary.LittleEndian.PutUint32(bytes[13*4:14*4], words[13]) - binary.LittleEndian.PutUint32(bytes[14*4:15*4], words[14]) - binary.LittleEndian.PutUint32(bytes[15*4:16*4], words[15]) -} - -func KeyFromBytes(key []byte, out *[8]uint32) { - key = key[:32] - out[0] = binary.LittleEndian.Uint32(key[0:]) - out[1] = binary.LittleEndian.Uint32(key[4:]) - out[2] = binary.LittleEndian.Uint32(key[8:]) - out[3] = binary.LittleEndian.Uint32(key[12:]) - out[4] = binary.LittleEndian.Uint32(key[16:]) - out[5] = binary.LittleEndian.Uint32(key[20:]) - out[6] = binary.LittleEndian.Uint32(key[24:]) - out[7] = binary.LittleEndian.Uint32(key[28:]) -} |