/
sign.go
53 lines (47 loc) · 938 Bytes
/
sign.go
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package dsafe
import (
"crypto/hmac"
"crypto/md5"
"crypto/sha1"
"io"
"mime/multipart"
)
func FileMD5Check(file multipart.File, sign string) (bool, error) {
if m, err := FileMD5(file); err != nil {
return false, err
} else {
if string(m) != sign {
return false, nil
}
return true, nil
}
}
func DataMD5Check(data []byte, sign string) (bool, error) {
if m, err := DataMD5(data); err != nil {
return false, err
} else {
if string(m) != sign {
return false, nil
}
return true, nil
}
}
func FileMD5(file multipart.File) ([]byte, error) {
h := md5.New()
if _, err := io.Copy(h, file); err != nil {
return nil, err
}
return h.Sum(nil), nil
}
func DataMD5(data []byte) ([]byte, error) {
h := md5.New()
if _, err := h.Write(data); err != nil {
return nil, err
}
return h.Sum(nil), nil
}
func HmacSha1(k []byte, v []byte) []byte {
mac := hmac.New(sha1.New, k)
mac.Write(v)
return mac.Sum(nil)
}