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seedgenerator.go
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seedgenerator.go
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// Copyright 2020 Insolar Network Ltd.
//
// 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 seedmanager
import (
"github.com/insolar/x-crypto/rand"
"github.com/pkg/errors"
)
// SeedSize is size of seed
const SeedSize uint = 32
// Seed is a type of seed
type Seed = [SeedSize]byte
// SeedGenerator holds logic with seed generation
type SeedGenerator struct {
}
// Next returns next random seed
func (sg *SeedGenerator) Next() (*Seed, error) {
seed := Seed{}
_, err := rand.Read(seed[:])
if err != nil {
return nil, errors.Wrap(err, "failed to get next seed")
}
return &seed, nil
}