mirror of
https://github.com/dnote/dnote
synced 2026-03-15 23:15:50 +01:00
45 lines
1.3 KiB
Go
45 lines
1.3 KiB
Go
/* Copyright 2025 Dnote Authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package crypt
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import (
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"crypto/rand"
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"encoding/base64"
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"github.com/pkg/errors"
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)
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// getRandomBytes generates a cryptographically secure pseudorandom numbers of the
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// given size in byte
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func getRandomBytes(numBytes int) ([]byte, error) {
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b := make([]byte, numBytes)
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if _, err := rand.Read(b); err != nil {
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return nil, errors.Wrap(err, "reading random bits")
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}
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return b, nil
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}
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// GetRandomStr generates a cryptographically secure pseudorandom numbers of the
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// given size in byte
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func GetRandomStr(numBytes int) (string, error) {
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b, err := getRandomBytes(numBytes)
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if err != nil {
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return "", errors.Wrap(err, "generating random bits")
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}
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return base64.StdEncoding.EncodeToString(b), nil
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}
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