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feat: add chrome decrypt for linux

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This commit is contained in:
ᴍᴏᴏɴD4ʀᴋ
2020-07-10 16:09:23 +08:00
parent 0a4dfb2cbb
commit f4294839f6
6 changed files with 295 additions and 45 deletions
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utils/utils_darwin.go
+32 -9
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@@ -110,6 +110,11 @@ SEQUENCE (2 elem)
OCTET STRING (16 byte)
*/
type NssPBE struct {
SequenceA
Encrypted []byte
}
type MetaPBE struct {
SequenceA
Encrypted []byte
@@ -125,8 +130,9 @@ type SequenceB struct {
Len int
}
func DecodeMeta(decodeItem []byte) (pbe MetaPBE, err error) {
_, err = asn1.Unmarshal(decodeItem, &pbe)
func DecodeMeta(metaBytes []byte) (pbe MetaPBE, err error) {
log.Debug(hex.EncodeToString(metaBytes))
_, err = asn1.Unmarshal(metaBytes, &pbe)
if err != nil {
log.Error(err)
return
@@ -134,7 +140,24 @@ func DecodeMeta(decodeItem []byte) (pbe MetaPBE, err error) {
return
}
func CheckPassword(globalSalt, masterPwd []byte, pbe MetaPBE) ([]byte, error) {
func DecodeNss(nssA11Bytes []byte) (pbe NssPBE, err error) {
log.Debug(hex.EncodeToString(nssA11Bytes))
_, err = asn1.Unmarshal(nssA11Bytes, &pbe)
if err != nil {
log.Error(err)
return
}
return
}
func DecryptMeta(globalSalt, masterPwd []byte, pbe MetaPBE) ([]byte, error) {
return decryptPBE(globalSalt, masterPwd, pbe.EntrySalt, pbe.Encrypted)}
func DecryptNss(globalSalt, masterPwd []byte, pbe NssPBE) ([]byte, error) {
return decryptPBE(globalSalt, masterPwd, pbe.EntrySalt, pbe.Encrypted)
}
func decryptPBE(globalSalt, masterPwd, entrySalt, encrypted []byte) ([]byte, error) {
//byte[] GLMP; // GlobalSalt + MasterPassword
//byte[] HP; // SHA1(GLMP)
//byte[] HPES; // HP + EntrySalt
@@ -147,20 +170,20 @@ func CheckPassword(globalSalt, masterPwd []byte, pbe MetaPBE) ([]byte, error) {
//byte[] k; // final value conytaining key and iv
glmp := append(globalSalt, masterPwd...)
hp := sha1.Sum(glmp)
s := append(hp[:], pbe.EntrySalt...)
s := append(hp[:], entrySalt...)
chp := sha1.Sum(s)
pes := PaddingZero(pbe.EntrySalt, 20)
pes := PaddingZero(entrySalt, 20)
tk := hmac.New(sha1.New, chp[:])
tk.Write(pes)
pes = append(pes, pbe.EntrySalt...)
pes = append(pes, entrySalt...)
k1 := hmac.New(sha1.New, chp[:])
k1.Write(pes)
tkPlus := append(tk.Sum(nil), pbe.EntrySalt...)
tkPlus := append(tk.Sum(nil), entrySalt...)
k2 := hmac.New(sha1.New, chp[:])
k2.Write(tkPlus)
k := append(k1.Sum(nil), k2.Sum(nil)...)
iv := k[len(k)-8:]
key := k[:24]
log.Warn("key=", hex.EncodeToString(key), "iv=", hex.EncodeToString(iv))
return Des3Decrypt(key, iv, pbe.Encrypted)
log.Warnf("key=%s iv=%s", hex.EncodeToString(key), hex.EncodeToString(iv))
return Des3Decrypt(key, iv, encrypted)
}