This article demonstrates an example of how the go language USES RC4 encryption. Share with you for your reference. The specific analysis is as follows:

Here we need to use rc4 package to implement rc4 encryption. The core code is as follows:

key := []byte{ 1, 2, 3, 4, 5, 6, 7 }
c, err := rc4.NewCipher(key)
dst := make([]byte, len(src))
c.XORKeyStream(dst, src)

I hope this article has been helpful to you in the programming of Go language.