package crypto/aes
NewCipher creates and returns a new cipher.Block. The key argument should be the AES key, either 16, 24, or 32 bytes to select AES-128, AES-192, or AES-256.
Golang crypto/aes.NewCipher() function usage example
package main
import (
"fmt"
"crypto/aes"
)
func main() {
//The key argument should be the AES key, either 16, 24, or 32 bytes to select AES-128, AES-192, or AES-256.
key := "opensesame123456" // 16 bytes!
block,err := aes.NewCipher([]byte(key))
if err != nil {
fmt.Println(err)
}
fmt.Printf("%d bytes NewCipher key with block size of %d bytes\n", len(key), block.BlockSize)
}
Output :
16 bytes NewCipher key with block size of 8752 bytes
See also : https://www.socketloop.com/tutorials/golang-how-to-encrypt-with-aes-crypto
Reference :
http://golang.org/pkg/crypto/aes/#NewCipher
