golang doc 代码
文件路径：/src/crypto/internal/boring/doc.go
/ Copyright 2017 The Go Authors. All rights reserved.
/ Use of this source code is governed by a BSD-style
/ license that can be found in the LICENSE file.
/ Package boring provides access to BoringCrypto implementation functions.
/ Check the constant Enabled to find out whether BoringCrypto is available.
/ If BoringCrypto is not available, the functions in this package all panic.
package boring
/ Enabled reports whether BoringCrypto is available.
/ When enabled is false, all functions in this package panic.
/
/ BoringCrypto is only available on linux/amd64 systems.
const Enabled = available
/ A BigInt is the raw words from a BigInt.
/ This definition allows us to avoid importing math/big.
/ Conversion between BigInt and *big.Int is in crypto/internal/boring/bbig.
type BigInt []uint