github.com/unionj-cloud/go-doudou/v2@v2.3.5/toolkit/memberlist/security_test.go (about)

     1  package memberlist
     2  
     3  import (
     4  	"bytes"
     5  	"reflect"
     6  	"testing"
     7  )
     8  
     9  func TestPKCS7(t *testing.T) {
    10  	for i := 0; i <= 255; i++ {
    11  		// Make a buffer of size i
    12  		buf := []byte{}
    13  		for j := 0; j < i; j++ {
    14  			buf = append(buf, byte(i))
    15  		}
    16  
    17  		// Copy to bytes buffer
    18  		inp := bytes.NewBuffer(nil)
    19  		inp.Write(buf)
    20  
    21  		// Pad this out
    22  		pkcs7encode(inp, 0, 16)
    23  
    24  		// Unpad
    25  		dec := pkcs7decode(inp.Bytes(), 16)
    26  
    27  		// Ensure equivilence
    28  		if !reflect.DeepEqual(buf, dec) {
    29  			t.Fatalf("mismatch: %v %v", buf, dec)
    30  		}
    31  	}
    32  
    33  }
    34  
    35  func TestEncryptDecrypt_V0(t *testing.T) {
    36  	encryptDecryptVersioned(0, t)
    37  }
    38  
    39  func TestEncryptDecrypt_V1(t *testing.T) {
    40  	encryptDecryptVersioned(1, t)
    41  }
    42  
    43  func encryptDecryptVersioned(vsn encryptionVersion, t *testing.T) {
    44  	k1 := []byte{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}
    45  	plaintext := []byte("this is a plain text message")
    46  	extra := []byte("random data")
    47  
    48  	var buf bytes.Buffer
    49  	err := encryptPayload(vsn, k1, plaintext, extra, &buf)
    50  	if err != nil {
    51  		t.Fatalf("err: %v", err)
    52  	}
    53  
    54  	expLen := encryptedLength(vsn, len(plaintext))
    55  	if buf.Len() != expLen {
    56  		t.Fatalf("output length is unexpected %d %d %d", len(plaintext), buf.Len(), expLen)
    57  	}
    58  
    59  	msg, err := decryptPayload([][]byte{k1}, buf.Bytes(), extra)
    60  	if err != nil {
    61  		t.Fatalf("err: %v", err)
    62  	}
    63  
    64  	cmp := bytes.Compare(msg, plaintext)
    65  	if cmp != 0 {
    66  		t.Errorf("len %d %v", len(msg), msg)
    67  		t.Errorf("len %d %v", len(plaintext), plaintext)
    68  		t.Fatalf("encrypt/decrypt failed! %d '%s' '%s'", cmp, msg, plaintext)
    69  	}
    70  }