mirror of https://github.com/mindoc-org/mindoc.git
71 lines
2.0 KiB
Go
71 lines
2.0 KiB
Go
package cryptil
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import (
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"crypto/hmac"
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"crypto/md5"
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"crypto/sha1"
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"encoding/base64"
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"fmt"
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"strconv"
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"strings"
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"time"
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)
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//对称加密与解密之加密【从Beego中提取出来的】
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//@param value 需要加密的字符串
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//@param secret 加密密钥
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//@return encrypt 返回的加密后的字符串
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func Encrypt(value, secret string) (encrypt string) {
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vs := base64.URLEncoding.EncodeToString([]byte(value))
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timestamp := strconv.FormatInt(time.Now().UnixNano(), 10)
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h := hmac.New(sha1.New, []byte(secret))
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fmt.Fprintf(h, "%s%s", vs, timestamp)
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sig := fmt.Sprintf("%02x", h.Sum(nil))
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return strings.Join([]string{vs, timestamp, sig}, ".")
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}
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//对称加密与解密之解密【从Beego中提取出来的】
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//@param value 需要解密的字符串
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//@param secret 密钥
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//@return decrypt 返回解密后的字符串
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func Decrypt(value, secret string) (decrypt string) {
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parts := strings.SplitN(value, ".", 3)
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if len(parts) != 3 {
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return ""
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}
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vs := parts[0]
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timestamp := parts[1]
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sig := parts[2]
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h := hmac.New(sha1.New, []byte(secret))
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fmt.Fprintf(h, "%s%s", vs, timestamp)
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if fmt.Sprintf("%02x", h.Sum(nil)) != sig {
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return ""
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}
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res, _ := base64.URLEncoding.DecodeString(vs)
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return string(res)
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}
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//MD5加密
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//@param str 需要加密的字符串
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//@param salt 盐值
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//@return CryptStr 加密后返回的字符串
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func Md5Crypt(str string, salt ...interface{}) (CryptStr string) {
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if l := len(salt); l > 0 {
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slice := make([]string, l+1)
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str = fmt.Sprintf(str+strings.Join(slice, "%v"), salt...)
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}
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return fmt.Sprintf("%x", md5.Sum([]byte(str)))
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}
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//SHA1加密
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//@param str 需要加密的字符串
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//@param salt 盐值
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//@return CryptStr 加密后返回的字符串
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func Sha1Crypt(str string, salt ...interface{}) (CryptStr string) {
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if l := len(salt); l > 0 {
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slice := make([]string, l+1)
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str = fmt.Sprintf(str+strings.Join(slice, "%v"), salt...)
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}
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return fmt.Sprintf("%x", sha1.Sum([]byte(str)))
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}
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