33 lines
1.1 KiB
Go
33 lines
1.1 KiB
Go
// Copyright 2020 The gVisor Authors.
|
|
//
|
|
// 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.
|
|
|
|
package crypto
|
|
|
|
import (
|
|
"crypto/ecdsa"
|
|
"crypto/sha512"
|
|
"math/big"
|
|
)
|
|
|
|
// EcdsaVerify verifies the signature in r, s of hash using ECDSA and the
|
|
// public key, pub. Its return value records whether the signature is valid.
|
|
func EcdsaVerify(pub *ecdsa.PublicKey, hash []byte, r, s *big.Int) bool {
|
|
return ecdsa.Verify(pub, hash, r, s)
|
|
}
|
|
|
|
// SumSha384 returns the SHA384 checksum of the data.
|
|
func SumSha384(data []byte) (sum384 [sha512.Size384]byte) {
|
|
return sha512.Sum384(data)
|
|
}
|