subtle import "crypto/internal/fips140/alias" // XORBytes sets dst[i] = x[i] ^ y[i] for all i < n = min(len(x), len(y)), // returning n, the number of bytes written to dst. // // If dst does not have length at least n, // XORBytes panics without writing anything to dst. // // dst and x or y may overlap exactly or not at all, // otherwise XORBytes may panic. func XORBytes(dst, x, y []byte) int { n := min(len(x), len(y)) if n == 0 { return 0 } if n > len(dst) { panic("subtle.XORBytes: dst too short")...