Merge pull request #264 from harshavardhana/pr_out_clang_lacks_proper_gas_support_implement_stubs_for_sha256_sha512_for_darwin
commit
0658889d33
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package sha256 |
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import ( |
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"io" |
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"crypto/sha256" |
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) |
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// Sum256 - single caller sha256 helper
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func Sum256(data []byte) []byte { |
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d := sha256.New() |
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d.Write(data) |
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return d.Sum(nil) |
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} |
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// Sum - io.Reader based streaming sha256 helper
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func Sum(reader io.Reader) ([]byte, error) { |
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d := sha256.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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d.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 d.Sum(nil), nil |
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} |
@ -0,0 +1,46 @@ |
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package sha512 |
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import ( |
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"io" |
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"crypto/sha512" |
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) |
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const ( |
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Size = sha512.Size |
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) |
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// Sum512 - single caller sha512 helper
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func Sum512(data []byte) []byte { |
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d := sha512.New() |
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d.Write(data) |
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return d.Sum(nil) |
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} |
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// Sum - io.Reader based streaming sha512 helper
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func Sum(reader io.Reader) ([]byte, error) { |
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d := sha512.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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d.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 d.Sum(nil), nil |
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} |
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// SumStream - similar to 'Sum()' but returns a [sha512.Size]byte
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func SumStream(reader io.Reader) ([sha512.Size]byte, error) { |
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var returnValue [sha512.Size]byte |
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sumSlice, err := Sum(reader) |
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if err != nil { |
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return returnValue, err |
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} |
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copy(returnValue[:], sumSlice) |
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return returnValue, err |
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} |
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