| // Copyright 2024 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 fips140only | |
| import ( | |
| "crypto/fips140" | |
| "crypto/internal/fips140/drbg" | |
| "crypto/internal/fips140/sha256" | |
| "crypto/internal/fips140/sha3" | |
| "crypto/internal/fips140/sha512" | |
| "hash" | |
| "io" | |
| ) | |
| // Enforced reports whether FIPS 140-only mode is enabled and enforced, in which non-approved | |
| // cryptography returns an error or panics. | |
| func Enforced() bool { | |
| return fips140.Enforced() | |
| } | |
| func ApprovedHash(h hash.Hash) bool { | |
| switch h.(type) { | |
| case *sha256.Digest, *sha512.Digest, *sha3.Digest: | |
| return true | |
| default: | |
| return false | |
| } | |
| } | |
| func ApprovedRandomReader(r io.Reader) bool { | |
| _, ok := r.(drbg.DefaultReader) | |
| return ok | |
| } | |