minio/pkg/hash/sha256_fips.go
Andreas Auernhammer c1a49be639
use crypto/sha256 for FIPS 140-2 compliance (#11623)
This commit replaces the usage of
github.com/minio/sha256-simd with crypto/sha256
of the standard library in all non-performance
critical paths.

This is necessary for FIPS 140-2 compliance which
requires that all crypto. primitives are implemented
by a FIPS-validated module.

Go can use the Google FIPS module. The boringcrypto
branch of the Go standard library uses the BoringSSL
FIPS module to implement crypto. primitives like AES
or SHA256.

We only keep github.com/minio/sha256-simd when computing
the content-SHA256 of an object. Therefore, this commit
relies on a build tag `fips`.

When MinIO is compiled without the `fips` flag it will
use github.com/minio/sha256-simd. When MinIO is compiled
with the fips flag (go build --tags "fips") then MinIO
uses crypto/sha256 to compute the content-SHA256.
2021-02-24 09:00:15 -08:00

29 lines
949 B
Go

// MinIO Cloud Storage, (C) 2021 MinIO, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build fips
package hash
import (
"crypto/sha256"
"hash"
)
// newSHA256 returns a new hash.Hash computing the SHA256 checksum.
// The SHA256 implementation is FIPS 140-2 compliant when the
// boringcrypto branch of Go is used.
// Ref: https://github.com/golang/go/tree/dev.boringcrypto
func newSHA256() hash.Hash { return sha256.New() }