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
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
// package fmtio provides basic utilities to format input and output
package fmtio
import (
"bytes"
"crypto"
"crypto/ed25519"
"fmt"
"io/ioutil"
"os"
"git.sigsum.org/sigsum-go/pkg/hex"
"git.sigsum.org/sigsum-go/pkg/types"
)
func BytesFromStdin() ([]byte, error) {
b, err := ioutil.ReadAll(os.Stdin)
if err != nil {
return nil, err
}
return b, nil
}
// StringFromStdin reads bytes from stdin, parsing them as a string without
// leading and trailing white space
func StringFromStdin() (string, error) {
b, err := ioutil.ReadAll(os.Stdin)
if err != nil {
return "", err
}
return string(bytes.TrimSpace(b)), nil
}
func SignerFromHex(s string) (crypto.Signer, error) {
b, err := hex.Deserialize(s)
if err != nil {
return nil, err
}
if n := len(b); n != ed25519.SeedSize {
return nil, fmt.Errorf("invalid size %d", n)
}
return ed25519.NewKeyFromSeed(b), nil
}
func PublicKeyFromHex(s string) (pub types.PublicKey, err error) {
b, err := hex.Deserialize(s)
if err != nil {
return pub, err
}
if n := len(b); n != types.PublicKeySize {
return pub, fmt.Errorf("invalid size %d", n)
}
copy(pub[:], b)
return
}
func KeyHashFromHex(s string) (h types.Hash, err error) {
b, err := hex.Deserialize(s)
if err != nil {
return h, err
}
if n := len(b); n != types.HashSize {
return h, fmt.Errorf("invalid size %d", n)
}
copy(h[:], b)
return
}
func SignatureFromHex(s string) (sig types.Signature, err error) {
b, err := hex.Deserialize(s)
if err != nil {
return sig, err
}
if n := len(b); n != types.SignatureSize {
return sig, fmt.Errorf("invalid size %d", n)
}
copy(sig[:], b)
return
}
|
