x out = out[x:] } return } // Sum appends the current hash to b and returns the resulting slice. // It does not change the underlying hash state. func (d *Digest) Sum(b []byte) []byte { fips140.RecordApproved() return d.sum(b) } func (d *Digest) sumGeneric(b []byte) []byte { if d.state != spongeAbsorbing { panic("sha3: Sum after Read") } // Make a copy of the original hash so that caller can keep writing // and summing. dup := d.Clone() hash := make([]byte, dup.outputLen, 64) // explicit cap to allow...