55 lines
1.0 KiB
Go
55 lines
1.0 KiB
Go
package privacy
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import (
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"encoding/json"
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"errors"
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"golang.org/x/crypto/argon2"
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)
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type argon2Params struct {
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Time uint32
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Memory uint32
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Threads uint8
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Name string
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}
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var ErrInvalidParameter = errors.New("invalid parameter")
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const argon2KeyGenName = "argon2"
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func (a argon2Params) GenerateKey(password, salt []byte) []byte {
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return argon2.IDKey(password, salt, a.Time, a.Memory, a.Threads, 32)
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}
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func NewArgon2() KeyGen {
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return argon2Params{
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Time: 1,
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Memory: 64 * 1024,
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Threads: 4,
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Name: argon2KeyGenName,
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}
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}
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func NewArgon2WithParams(time, memory uint32, threads uint8) (k KeyGen, err error) {
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if time == 0 || memory == 0 || threads == 0 {
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return nil, ErrInvalidParameter
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}
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return argon2Params{
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Time: time,
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Memory: memory,
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Threads: threads,
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Name: argon2KeyGenName,
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}, nil
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}
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func (a argon2Params) MarshalJSON() ([]byte, error) {
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m := map[string]any{
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"name": a.Name,
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"memory": a.Memory,
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"threads": a.Threads,
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"time": a.Time,
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}
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return json.Marshal(&m)
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}
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