55 lines
1.3 KiB
Go
55 lines
1.3 KiB
Go
package utils
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import (
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"crypto"
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"crypto/rand"
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"crypto/rsa"
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"crypto/sha512"
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"crypto/x509"
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"encoding/pem"
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"github.com/denisbrodbeck/machineid"
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)
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// SignatureRSA rsa私钥签名
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func SignatureRSA(plainText []byte, rsaPrivateKey string) (signed []byte, err error) {
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// 使用pem对读取的内容解码得到block
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block, _ := pem.Decode([]byte(rsaPrivateKey))
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//x509将数据解析得到私钥结构体
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privateKey, err := x509.ParsePKCS1PrivateKey(block.Bytes)
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if err != nil {
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return nil, err
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}
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// 创建一个hash对象
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h := sha512.New()
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_, _ = h.Write(plainText)
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// 计算hash值
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hashText := h.Sum(nil)
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// 使用rsa函数对散列值签名
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signed, err = rsa.SignPKCS1v15(rand.Reader, privateKey, crypto.SHA512, hashText)
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if err != nil {
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return
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}
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return signed, nil
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}
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// VerifyRSA rsa签名认证
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func VerifyRSA(plainText, signText []byte, rsaPublicKey string) bool {
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// pem解码得到block
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block, _ := pem.Decode([]byte(rsaPublicKey))
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// x509解析得到接口
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publicKey, err := x509.ParsePKCS1PublicKey(block.Bytes)
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if err != nil {
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return false
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}
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// 对原始明文进行hash运算得到散列值
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hashText := sha512.Sum512(plainText)
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// 签名认证
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err = rsa.VerifyPKCS1v15(publicKey, crypto.SHA512, hashText[:], signText)
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return err == nil
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}
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func GetMachineId() (string, error) {
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return machineid.ID()
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}
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