lysann/passforios-gopenpgp
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Add generate key with primes and x25519

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This commit is contained in:
KAYLukas 2018-06-19 11:28:37 +02:00
parent 60d877f35d
commit fd6579114c
1 changed files with 37 additions and 7 deletions
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44
key.go
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@ -11,6 +11,7 @@ import (
"golang.org/x/crypto/openpgp"
"golang.org/x/crypto/openpgp/packet"
"math/big"
)
//EncryptedSplit when encrypt attachemt
@ -141,13 +142,8 @@ func (o *OpenPGP) IsKeyExpired(publicKey string) (bool, error) {
return o.IsKeyExpiredBin(rawPubKey)
}
// GenerateKey ...
// disabled now, will enable later
// #generat new key with email address. Fix the UserID issue in protonmail system. on Feb 28, 17
// #static generate_key_with_email(email : string, passphrase : string, bits : i32) : open_pgp_key;
// # generate new key
// #static generate_new_key(user_id : string, email : string, passphrase : string, bits : i32) : open_pgp_key;
func (o *OpenPGP) GenerateKey(userName string, domain string, passphrase string, keyType string, bits int) (string, error) {
func (o *OpenPGP) generateKey(userName string, domain string, passphrase string, keyType string, bits int,
prime1 []byte, prime2 []byte, prime3 []byte, prime4 []byte) (string, error) {
if len(userName) <= 0 {
return "", errors.New("Invalid user name format")
@ -164,12 +160,31 @@ func (o *OpenPGP) GenerateKey(userName string, domain string, passphrase string,
}
cfg := &packet.Config{
Algorithm: packet.PubKeyAlgoRSA,
RSABits: bits,
Time: timeNow,
DefaultHash: crypto.SHA256,
DefaultCipher: packet.CipherAES256,
}
if keyType == "x25519" {
cfg.Algorithm = packet.PubKeyAlgoEdDSA
}
if prime1 != nil && prime2 != nil && prime3 != nil && prime4 != nil {
var bigPrimes [4]*big.Int
bigPrimes[0] = new(big.Int)
bigPrimes[0].SetBytes(prime1)
bigPrimes[1] = new(big.Int)
bigPrimes[1].SetBytes(prime2)
bigPrimes[2] = new(big.Int)
bigPrimes[2].SetBytes(prime3)
bigPrimes[3] = new(big.Int)
bigPrimes[3].SetBytes(prime4)
cfg.RSAPrimes = bigPrimes[:]
}
newEntity, err := openpgp.NewEntity(email, comments, email, cfg)
if err != nil {
return "", err
@ -179,6 +194,7 @@ func (o *OpenPGP) GenerateKey(userName string, domain string, passphrase string,
return "", err
}
rawPwd := []byte(passphrase)
if newEntity.PrivateKey != nil && !newEntity.PrivateKey.Encrypted {
if err := newEntity.PrivateKey.Encrypt(rawPwd); err != nil {
@ -202,6 +218,20 @@ func (o *OpenPGP) GenerateKey(userName string, domain string, passphrase string,
return ArmorWithType(serialized, pgpPrivateBlockType)
}
func (o *OpenPGP) GenerateRSAKeyWithPrimes(userName string, domain string, passphrase string, bits int,
primeone []byte, primetwo []byte, primethree []byte, primefour []byte) (string, error) {
return o.generateKey(userName, domain, passphrase, "rsa", bits, primeone, primetwo, primethree, primefour)
}
// GenerateKey ...
// disabled now, will enable later
// #generat new key with email address. Fix the UserID issue in protonmail system. on Feb 28, 17
// #static generate_key_with_email(email : string, passphrase : string, bits : i32) : open_pgp_key;
// # generate new key
// #static generate_new_key(user_id : string, email : string, passphrase : string, bits : i32) : open_pgp_key;
func (o *OpenPGP) GenerateKey(userName string, domain string, passphrase string, keyType string, bits int) (string, error) {
return o.generateKey(userName, domain, passphrase, keyType, bits, nil, nil, nil, nil)
}
// UpdatePrivateKeyPassphrase ...
func (o *OpenPGP) UpdatePrivateKeyPassphrase(privateKey string, oldPassphrase string, newPassphrase string) (string, error) {