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
|
package sha1crypt
import (
"fmt"
"github.com/go-crypt/crypt/algorithm"
)
// Opt describes the functional option pattern for the sha1crypt.Hasher.
type Opt func(h *Hasher) (err error)
// WithIterations sets the iterations parameter of the resulting sha1crypt.Digest.
// Minimum is 0, Maximum is 4294967295. Default is 480000.
func WithIterations(iterations uint32) Opt {
return func(h *Hasher) (err error) {
if iterations < IterationsMin || iterations > IterationsMax {
return fmt.Errorf(algorithm.ErrFmtHasherValidation, AlgName, fmt.Errorf(algorithm.ErrFmtInvalidIntParameter, algorithm.ErrParameterInvalid, "iterations", IterationsMin, "", IterationsMax, iterations))
}
h.i = true
h.iterations = iterations
return nil
}
}
// WithRounds is an alias for sha1crypt.WithIterations.
func WithRounds(rounds uint32) Opt {
return WithIterations(rounds)
}
// WithSaltLength adjusts the salt size (in bytes) of the resulting sha1crypt.Digest.
// Minimum is 1, Maximum is 64. Default is 8.
func WithSaltLength(bytes int) Opt {
return func(h *Hasher) (err error) {
if bytes < SaltLengthMin || bytes > SaltLengthMax {
return fmt.Errorf(algorithm.ErrFmtHasherValidation, AlgName, fmt.Errorf(algorithm.ErrFmtInvalidIntParameter, algorithm.ErrParameterInvalid, "salt length", SaltLengthMin, "", SaltLengthMax, bytes))
}
h.bytesSalt = bytes
return nil
}
}
|
