/
encrypt.go
59 lines (49 loc) · 1.17 KB
/
encrypt.go
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package entity
import (
"io"
"strings"
"github.com/gtank/cryptopasta"
"github.com/torenken/doc-box/pkg/store/doc/domain"
)
func Encrypt(doc domain.Document) (Document, error) {
key, err := newEncryptionKey(doc.Id)
if err != nil {
return Document{}, err
}
encrypt, err := cryptopasta.Encrypt([]byte(doc.Name), key)
if err != nil {
return Document{}, err
}
return Document{
Id: doc.Id,
Type: doc.Type,
Name: encrypt,
LifecycleState: doc.LifecycleState,
CreationDate: doc.CreationDate,
}, nil
}
func Decrypt(doc Document) (domain.Document, error) {
key, err := newEncryptionKey(doc.Id)
if err != nil {
return domain.Document{}, err
}
decrypt, err := cryptopasta.Decrypt(doc.Name, key)
if err != nil {
return domain.Document{}, err
}
return domain.Document{
Id: doc.Id,
Type: doc.Type,
Name: string(decrypt),
LifecycleState: doc.LifecycleState,
CreationDate: doc.CreationDate,
}, nil
}
func newEncryptionKey(value string) (*[32]byte, error) {
key := [32]byte{}
_, err := io.ReadFull(strings.NewReader(value), key[:])
if err != nil {
return nil, err
}
return &key, nil
}