blob: fa236ab45bec0dd25885ab9bdec2dafd7d1c481b (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
// Copyright 2018 Frédéric Guillot. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
package crypto // import "miniflux.app/crypto"
import (
"crypto/rand"
"crypto/sha256"
"encoding/base64"
"fmt"
)
// HashFromBytes returns a SHA-256 checksum of the input.
func HashFromBytes(value []byte) string {
sum := sha256.Sum256(value)
return fmt.Sprintf("%x", sum)
}
// Hash returns a SHA-256 checksum of a string.
func Hash(value string) string {
return HashFromBytes([]byte(value))
}
// GenerateRandomBytes returns random bytes.
func GenerateRandomBytes(size int) []byte {
b := make([]byte, size)
if _, err := rand.Read(b); err != nil {
panic(err)
}
return b
}
// GenerateRandomString returns a random string.
func GenerateRandomString(size int) string {
return base64.URLEncoding.EncodeToString(GenerateRandomBytes(size))
}
|
