From 4e9762633f173b98c83fc2728bbad5951cc1dd70 Mon Sep 17 00:00:00 2001 From: Dimitri Sokolyuk Date: Tue, 2 May 2017 16:57:52 +0200 Subject: Split files --- gen.go | 70 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 gen.go (limited to 'gen.go') diff --git a/gen.go b/gen.go new file mode 100644 index 0000000..d3d2933 --- /dev/null +++ b/gen.go @@ -0,0 +1,70 @@ +package main + +import ( + "fmt" + + "dim13.org/signify/ask" + "dim13.org/signify/bhash" + "dim13.org/signify/file" + "dim13.org/signify/key" +) + +func Generate(pubFile, encFile, comment string, nopass bool) error { + if err := file.Names(pubFile, encFile); err != nil { + return err + } + + pubKey, encKey, err := key.NewKey() + if err != nil { + return err + } + + if nopass { + encKey.KDFRounds = 0 + } + if err := Kdf(encKey, ask.Confirmed); err != nil { + return err + } + + encRaw, err := key.Marshal(encKey) + if err != nil { + return err + } + + block := &file.Block{ + Comment: fmt.Sprintf("%s secret key", comment), + Bytes: encRaw, + } + if err := file.EncodeFile(encFile, file.EncMode, block); err != nil { + return err + } + + pubRaw, err := key.Marshal(pubKey) + if err != nil { + return err + } + block = &file.Block{ + Comment: fmt.Sprintf("%s public key", comment), + Bytes: pubRaw, + } + if err := file.EncodeFile(pubFile, file.PubMode, block); err != nil { + return err + } + + return nil +} + +func Kdf(enc *key.Enc, ask func() (string, error)) error { + if enc.KDFRounds == 0 { + return nil + } + pass, err := ask() + if err != nil { + return err + } + xor := bhash.Pbkdf([]byte(pass), enc.Salt[:], int(enc.KDFRounds), len(enc.Key)) + for i := range xor { + enc.Key[i] ^= xor[i] + } + return nil +} -- cgit v1.2.3