C.H Scenario 3. func NewGCMWithCounterNon(cipher *aes.Block) (*GCMWithCounterNonce, error) { g, err := newGCM(&GCM{}, cipher, gcmStandardNonceSize, gcmTagSize) if err != nil { return nil, err } return &GCMWithCounterNonce{g: *g}, nil } type GCMWithCounterNonce struct { g GCM ready bool fixedName uint32 start uint64 next uint64 } func (g *GCMWithCounterNonce) NonceSize() int { return gcmStandardNonceSize } func (g *GCMWithCounterNonce) Overhead() int { return gcmTagSize } func (g *GCMWithCounterNonce)...