mirror of
https://github.com/netbirdio/netbird.git
synced 2024-11-21 15:43:12 +01:00
[management] fix legacy decrypting of empty values (#2595)
* allow legacy decrypting on empty values * validate source size and padding limits * added tests --------- Signed-off-by: bcmmbaga <bethuelmbaga12@gmail.com> Co-authored-by: Maycon Santos <mlsmaycon@gmail.com>
This commit is contained in:
Bethuel Mmbaga
GitHub
parent
fa7767e612
commit
82739e2832
@ -7,7 +7,6 @@ import (
|
||||
"crypto/rand"
|
||||
"encoding/base64"
|
||||
"errors"
|
||||
"fmt"
|
||||
)
|
||||
|
||||
var iv = []byte{10, 22, 13, 79, 05, 8, 52, 91, 87, 98, 88, 98, 35, 25, 13, 05}
|
||||
@ -115,12 +114,23 @@ func pkcs5Padding(ciphertext []byte) []byte {
|
||||
padText := bytes.Repeat([]byte{byte(padding)}, padding)
|
||||
return append(ciphertext, padText...)
|
||||
}
|
||||
|
||||
func pkcs5UnPadding(src []byte) ([]byte, error) {
|
||||
srcLen := len(src)
|
||||
paddingLen := int(src[srcLen-1])
|
||||
if paddingLen >= srcLen || paddingLen > aes.BlockSize {
|
||||
return nil, fmt.Errorf("padding size error")
|
||||
if srcLen == 0 {
|
||||
return nil, errors.New("input data is empty")
|
||||
}
|
||||
|
||||
paddingLen := int(src[srcLen-1])
|
||||
if paddingLen == 0 || paddingLen > aes.BlockSize || paddingLen > srcLen {
|
||||
return nil, errors.New("invalid padding size")
|
||||
}
|
||||
|
||||
// Verify that all padding bytes are the same
|
||||
for i := 0; i < paddingLen; i++ {
|
||||
if src[srcLen-1-i] != byte(paddingLen) {
|
||||
return nil, errors.New("invalid padding")
|
||||
}
|
||||
}
|
||||
|
||||
return src[:srcLen-paddingLen], nil
|
||||
}
|
||||
|
||||
@ -1,6 +1,7 @@
|
||||
package sqlite
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"testing"
|
||||
)
|
||||
|
||||
@ -95,3 +96,215 @@ func TestCorruptKey(t *testing.T) {
|
||||
t.Fatalf("incorrect decryption, the result is: %s", res)
|
||||
}
|
||||
}
|
||||
|
||||
func TestEncryptDecrypt(t *testing.T) {
|
||||
// Generate a key for encryption/decryption
|
||||
key, err := GenerateKey()
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to generate key: %v", err)
|
||||
}
|
||||
|
||||
// Initialize the FieldEncrypt with the generated key
|
||||
ec, err := NewFieldEncrypt(key)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to create FieldEncrypt: %v", err)
|
||||
}
|
||||
|
||||
// Test cases
|
||||
testCases := []struct {
|
||||
name string
|
||||
input string
|
||||
}{
|
||||
{
|
||||
name: "Empty String",
|
||||
input: "",
|
||||
},
|
||||
{
|
||||
name: "Short String",
|
||||
input: "Hello",
|
||||
},
|
||||
{
|
||||
name: "String with Spaces",
|
||||
input: "Hello, World!",
|
||||
},
|
||||
{
|
||||
name: "Long String",
|
||||
input: "The quick brown fox jumps over the lazy dog.",
|
||||
},
|
||||
{
|
||||
name: "Unicode Characters",
|
||||
input: "こんにちは世界",
|
||||
},
|
||||
{
|
||||
name: "Special Characters",
|
||||
input: "!@#$%^&*()_+-=[]{}|;':\",./<>?",
|
||||
},
|
||||
{
|
||||
name: "Numeric String",
|
||||
input: "1234567890",
|
||||
},
|
||||
{
|
||||
name: "Repeated Characters",
|
||||
input: "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
|
||||
},
|
||||
{
|
||||
name: "Multi-block String",
|
||||
input: "This is a longer string that will span multiple blocks in the encryption algorithm.",
|
||||
},
|
||||
{
|
||||
name: "Non-ASCII and ASCII Mix",
|
||||
input: "Hello 世界 123",
|
||||
},
|
||||
}
|
||||
|
||||
for _, tc := range testCases {
|
||||
t.Run(tc.name+" - Legacy", func(t *testing.T) {
|
||||
// Legacy Encryption
|
||||
encryptedLegacy := ec.LegacyEncrypt(tc.input)
|
||||
if encryptedLegacy == "" {
|
||||
t.Errorf("LegacyEncrypt returned empty string for input '%s'", tc.input)
|
||||
}
|
||||
|
||||
// Legacy Decryption
|
||||
decryptedLegacy, err := ec.LegacyDecrypt(encryptedLegacy)
|
||||
if err != nil {
|
||||
t.Errorf("LegacyDecrypt failed for input '%s': %v", tc.input, err)
|
||||
}
|
||||
|
||||
// Verify that the decrypted value matches the original input
|
||||
if decryptedLegacy != tc.input {
|
||||
t.Errorf("LegacyDecrypt output '%s' does not match original input '%s'", decryptedLegacy, tc.input)
|
||||
}
|
||||
})
|
||||
|
||||
t.Run(tc.name+" - New", func(t *testing.T) {
|
||||
// New Encryption
|
||||
encryptedNew, err := ec.Encrypt(tc.input)
|
||||
if err != nil {
|
||||
t.Errorf("Encrypt failed for input '%s': %v", tc.input, err)
|
||||
}
|
||||
if encryptedNew == "" {
|
||||
t.Errorf("Encrypt returned empty string for input '%s'", tc.input)
|
||||
}
|
||||
|
||||
// New Decryption
|
||||
decryptedNew, err := ec.Decrypt(encryptedNew)
|
||||
if err != nil {
|
||||
t.Errorf("Decrypt failed for input '%s': %v", tc.input, err)
|
||||
}
|
||||
|
||||
// Verify that the decrypted value matches the original input
|
||||
if decryptedNew != tc.input {
|
||||
t.Errorf("Decrypt output '%s' does not match original input '%s'", decryptedNew, tc.input)
|
||||
}
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
func TestPKCS5UnPadding(t *testing.T) {
|
||||
tests := []struct {
|
||||
name string
|
||||
input []byte
|
||||
expected []byte
|
||||
expectError bool
|
||||
}{
|
||||
{
|
||||
name: "Valid Padding",
|
||||
input: append([]byte("Hello, World!"), bytes.Repeat([]byte{4}, 4)...),
|
||||
expected: []byte("Hello, World!"),
|
||||
},
|
||||
{
|
||||
name: "Empty Input",
|
||||
input: []byte{},
|
||||
expectError: true,
|
||||
},
|
||||
{
|
||||
name: "Padding Length Zero",
|
||||
input: append([]byte("Hello, World!"), bytes.Repeat([]byte{0}, 4)...),
|
||||
expectError: true,
|
||||
},
|
||||
{
|
||||
name: "Padding Length Exceeds Block Size",
|
||||
input: append([]byte("Hello, World!"), bytes.Repeat([]byte{17}, 17)...),
|
||||
expectError: true,
|
||||
},
|
||||
{
|
||||
name: "Padding Length Exceeds Input Length",
|
||||
input: []byte{5, 5, 5},
|
||||
expectError: true,
|
||||
},
|
||||
{
|
||||
name: "Invalid Padding Bytes",
|
||||
input: append([]byte("Hello, World!"), []byte{2, 3, 4, 5}...),
|
||||
expectError: true,
|
||||
},
|
||||
{
|
||||
name: "Valid Single Byte Padding",
|
||||
input: append([]byte("Hello, World!"), byte(1)),
|
||||
expected: []byte("Hello, World!"),
|
||||
},
|
||||
{
|
||||
name: "Invalid Mixed Padding Bytes",
|
||||
input: append([]byte("Hello, World!"), []byte{3, 3, 2}...),
|
||||
expectError: true,
|
||||
},
|
||||
{
|
||||
name: "Valid Full Block Padding",
|
||||
input: append([]byte("Hello, World!"), bytes.Repeat([]byte{16}, 16)...),
|
||||
expected: []byte("Hello, World!"),
|
||||
},
|
||||
{
|
||||
name: "Non-Padding Byte at End",
|
||||
input: append([]byte("Hello, World!"), []byte{4, 4, 4, 5}...),
|
||||
expectError: true,
|
||||
},
|
||||
{
|
||||
name: "Valid Padding with Different Text Length",
|
||||
input: append([]byte("Test"), bytes.Repeat([]byte{12}, 12)...),
|
||||
expected: []byte("Test"),
|
||||
},
|
||||
{
|
||||
name: "Padding Length Equal to Input Length",
|
||||
input: bytes.Repeat([]byte{8}, 8),
|
||||
expected: []byte{},
|
||||
},
|
||||
{
|
||||
name: "Invalid Padding Length Zero (Again)",
|
||||
input: append([]byte("Test"), byte(0)),
|
||||
expectError: true,
|
||||
},
|
||||
{
|
||||
name: "Padding Length Greater Than Input",
|
||||
input: []byte{10},
|
||||
expectError: true,
|
||||
},
|
||||
{
|
||||
name: "Input Length Not Multiple of Block Size",
|
||||
input: append([]byte("Invalid Length"), byte(1)),
|
||||
expected: []byte("Invalid Length"),
|
||||
},
|
||||
{
|
||||
name: "Valid Padding with Non-ASCII Characters",
|
||||
input: append([]byte("こんにちは"), bytes.Repeat([]byte{2}, 2)...),
|
||||
expected: []byte("こんにちは"),
|
||||
},
|
||||
}
|
||||
|
||||
for _, tt := range tests {
|
||||
t.Run(tt.name, func(t *testing.T) {
|
||||
result, err := pkcs5UnPadding(tt.input)
|
||||
if tt.expectError {
|
||||
if err == nil {
|
||||
t.Errorf("Expected error but got nil")
|
||||
}
|
||||
} else {
|
||||
if err != nil {
|
||||
t.Errorf("Did not expect error but got: %v", err)
|
||||
}
|
||||
if !bytes.Equal(result, tt.expected) {
|
||||
t.Errorf("Expected output %v, got %v", tt.expected, result)
|
||||
}
|
||||
}
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user