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@@ -0,0 +1,122 @@
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+package asign
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+
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+import (
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+ "crypto"
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+ "crypto/md5"
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+ "crypto/rand"
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+ "crypto/rsa"
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+ "crypto/sha1"
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+ "crypto/x509"
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+ "encoding/base64"
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+ "encoding/hex"
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+ "encoding/pem"
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+ "fmt"
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+ "sort"
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+)
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+
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+func HttpPost(url string, bizData map[string]interface{}) (rspBody []byte, err error) {
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+
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+ // 签名
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+ // timestamp := int64(time.Now().Unix())
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+
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+ return
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+}
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+
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+// 签名规范：
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+// 1、表单提交方式：form-data
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+// 示例：1B2M2Y8AsgTpgAmY7PhCfg==
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+// 2、请求头部参数
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+// 参数1：sign（签名值，具体算法参考一下的前面算法）
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+// 参数2：timestamp（时间戳，13位）
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+// 3、请求体参数：
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+// 参数1：appId（appId值，每个接入者唯一一个）
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+// 参数2：timestamp（时间戳，13位，与上述一致）
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+// 参数3：bizData（json字符串，举个例子，比方说要传合同编号如：{"contractNo":"0001"}）
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+// 4、签名算法：
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+// 4.1、将上述3所属的bizData（json字符串），按照阿拉伯字母排序(如：{"ba":1,"ac":2}--->{"ac":2,"ba":1})，
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+// 4.2、将4.1排序后的字符串，将【bizData+md5（bizData）+ appId + timestatmp】拼接后利用RSA非对称加密算法（SHA1withRSA），计算出最后的签名sign，对其base64编码，放入head的key（sign）中。
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+//
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+// String sign ;
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+// String rsaSuffix = jsonStr + DigestUtils.md5Hex ( jsonStr ) + appId + timestatmp ;
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+// byte [] bytes = RSAUtils.generateSHA1withRSASignature ( rsaSuffix, privateKey ) ;
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+// try {
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+// sign = Base64Utils.encode ( bytes ) ;
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+// sign = sign.replaceAll ( " \r\n" , "" ) ;
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+// } catch ( Exception e ) {
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+// log.error( "sdk异常", e ) ;
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+// return ApiRespBody.create ( ApiResponseInfo. _ERROR ) ;
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+// }
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+func getSignature(bizData map[string]interface{}, appId, timestamp, privateKey string) (signature string, err error) {
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+ pem10, _ := pem.Decode([]byte(privateKey))
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+ privateKey10I, _ := x509.ParsePKCS8PrivateKey(pem10.Bytes)
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+ privateKey10 := privateKey10I.(*rsa.PrivateKey)
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+
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+ // sort by key
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+ sortedData := sortMapByKey(bizData)
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+
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+ // md5（bizData）
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+ m := md5.New()
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+ m.Write([]byte(sortedData))
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+ bdMd5Hx := hex.EncodeToString(m.Sum(nil))
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+
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+ // 待签内容
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+ message := sortedData + bdMd5Hx + appId + timestamp
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+ h := sha1.New()
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+ h.Write([]byte(message))
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+ sum := h.Sum(nil)
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+
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+ // 使用私钥进行签名
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+ sign, err := rsa.SignPKCS1v15(rand.Reader, privateKey10, crypto.SHA1, sum)
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+ if err != nil {
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+ fmt.Println("Error signing:", err)
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+ return
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+ }
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+
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+ // fmt.Println(signature)
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+ signature = base64.StdEncoding.EncodeToString(sign)
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+
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+ return
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+}
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+
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+// sortMapByKey 按key排序map返回string
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+func sortMapByKey(data map[string]interface{}) (sortedData string) {
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+ keys := make([]string, 0, len(data))
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+ for k := range data {
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+ keys = append(keys, k)
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+ }
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+ sort.Strings(keys)
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+ for i, k := range keys {
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+ if i > 0 {
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+ sortedData += ","
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+ }
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+ switch data[k].(type) {
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+ case string:
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+ sortedData += fmt.Sprintf(`"%s":"%s"`, k, data[k].(string))
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+ case map[string]interface{}:
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+ sortedData += fmt.Sprintf(`"%s":%s`, k, sortMapByKey(data[k].(map[string]interface{})))
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+ case []interface{}:
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+ list := data[k].([]interface{})
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+ sortedData += fmt.Sprintf(`"%s":[`, k)
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+ for j, item := range list {
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+ if j > 0 {
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+ sortedData += ","
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+ }
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+ sortedData += sortMapByKey(item.(map[string]interface{}))
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+ }
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+ sortedData += "]"
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+ default:
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+ sortedData += fmt.Sprintf(`"%s":%v`, k, data[k])
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+ }
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+ }
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+
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+ return fmt.Sprintf("{%s}", sortedData)
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+}
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+
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+// func main() {
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+// datas := make(map[string]interface{})
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+// json.Unmarshal([]byte(`{"account":"12345","name":"张三","map":{"ccc":"adfasd","aaa":34355},"list":[{"ccc":"adfasd","aaa":34355},{"dddd":"8ghg","kkkk":12.55}]}`), &datas)
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+// getSignature(datas, "290912417", "1701866011940",
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+// `-----BEGIN PRIVATE KEY-----
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+// MIIBUwIBADANBgkqhkiG9w0BAQEFAASCAT0wggE5AgEAAkEAkMD+72J6iAF0ZNV+3t628lsRHfJ80nKZWK5/C7Pg+AZmOIzJlwHsKhRzCvxoxqYHQprhiFzW9l73v9vD9l1JYwIDAQABAkBVijccr01JYdKuY5t9iI8D2NzcnZc1pZMI3NUmzT18Uyg7b9CUvGHlLeg/gdT4QtVd7wIzHYCY4letEcEMh54BAiEAwzNWusj5XiLmty7PI0Hbakx4HtcND1+P0UHLEWqWOuECIQC91zQuL7nStgGzT3HvaeBB5Ouapa39fHRm2nCjHaxwwwIgRR2XdvmUOj23XWMomr5F14SN/7V7fVcD0D8wjNElsmECIDYavV5kb7tj7/wgqkInlKhzC8rZaUsTS0F9BBkY/eptAiAQJ8Saz8YlMIESdHMxANGSog01fECbcZqLFMuNf8SorA==
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+// -----END PRIVATE KEY-----`)
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+// }
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