12 ) func (g *GCM) NonceSize() int { return g.nonceSize } func (g *GCM) Overhead() int { return g.tagSize } func (g *GCM) Seal(dst, nonce, plaintext, data []byte) []byte { fips140.RecordNonApproved() return g.sealAfterIndicator(dst, nonce, plaintext, data) } func (g *GCM) sealAfterIndicator(dst, nonce, plaintext, data []byte) []byte { if len(nonce) != g.nonceSize { panic("crypto/cipher: incorrect nonce length given to GCM") } if g.nonceSize == 0 { panic("crypto/cipher: incorrect GCM nonce size")...