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29 lines
642 B
29 lines
642 B
// +build amd64
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package sha512
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// #include <stdint.h>
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// void sha512_transform_avx(const void* M, void* D, uint64_t L);
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// void sha512_transform_ssse3(const void* M, void* D, uint64_t L);
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// void sha512_transform_rorx(const void* M, void* D, uint64_t L);
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import "C"
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import (
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gosha512 "crypto/sha512"
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"io"
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)
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func Sum(reader io.Reader) ([]byte, error) {
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hash := gosha512.New()
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var err error
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for err == nil {
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length := 0
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byteBuffer := make([]byte, 1024*1024)
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length, err = reader.Read(byteBuffer)
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byteBuffer = byteBuffer[0:length]
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hash.Write(byteBuffer)
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}
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if err != io.EOF {
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return nil, err
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}
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return hash.Sum(nil), nil
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}
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