Golang Aes Encryption Example

This is a creation in Article, where the information may have evolved or changed.

An example of AES encryption. For members ' reference.

package mainimport  (     "Crypto/aes"      "Crypto/cipher"      "FMT") Func main ()  {    aesenc := aesencrypt{}     arrencrypt, err := aesenc.encrypt ("ABCDE")     if  err != nil {        fmt. Println (Arrencrypt)         return    }     strmsg, err := aesenc.decrypt (Arrencrypt)     if err ! = nil {        fmt. Println (Arrencrypt)         return    }     fmt. Println (STRMSG)}type aesencrypt struct {}func  (this *aesencrypt)  getkey ()  [ ]byte {    strkey :=  "1234567890123456 "    keylen := len (strkey)     if keyLen <  16 {        panic ("res key  length cannot be less than")      }    arrkey := []byte (strkey)     if keylen  >= 32 {        //fetch the first 32 bytes of          return arrkey[:32]    }    if keylen  >= 24 {        //fetch the first 24 bytes of          return arrkey[:24]    }    //take the first 16 bytes     return arrkey[:16]}//Encrypted string func  (This *aesencrypt)  Encrypt (STRMESG  string)   ([]byte, error)  {    key := this.getkey ()      var iv = []byte (Key) [: AES. Blocksize]    encrypted := make ([]byte, len (STRMESG))      aesblockencrypter, err := aes. Newcipher (Key)     if err != nil {         return nil, err    }    aesencrypter :=  cipher. Newcfbencrypter (AESBLOCKENCRYPTER,&NBSP;IV)     aesencrypter.xorkeystream (encrypted, [ ]byte (STRMESG))     return encrypted, nil}//Decrypt string func  (This *AesEncrypt )  decrypt (src []byte)   (strdesc string, err error)  {     Defer func ()  {        //error handling          if e := recover (); e != nil {              err = e. (Error)         }    } ()     key := this.getkey ()     var iv = []byte ( Key) [: AES. Blocksize]    decrypted := make ([]byte, len (SRC))      Var aesblockdecrypter cipher. Block    aesblockdecrypter, err = aes. Newcipher ([]byte (key))     if err != nil {         return  "",  err    }    aesdecrypter  := cipher. Newcfbdecrypter (AESBLOCKDECRYPTER,&NBSP;IV)     aesdecrypter.xorkeystream (decrypted,  SRC)     return string (decrypted),  nil}