func doWork(proc chanproc, id int) {
start := time.Now()
for {
select {
case pass := <-proc.mdp:
{
tmp := md4.New()
tmp.Write(pass)
tmp.Sum(nil)
}
case <-proc.nomorejob:
{
if len(proc.mdp) != 0 {
for i := 0; i < len(proc.mdp); i++ {
tmp := md4.New()
tmp.Write(<-proc.mdp)
tmp.Sum(nil)
}
}
proc.temps <- time.Since(start)
return
}
}
}
}
func (otp *OTP) hashCalc(algorithm string) ([8]byte, error) {
var hash_algorithm hash.Hash
tmpseq := STAITC_OTP_OTP_REP_COUNT - (otp.seq % STAITC_OTP_OTP_REP_COUNT)
_string_ := strconv.Itoa(otp.seed) + otp.passphrase
switch otp.mAlgorithm {
case "MD4":
hash_algorithm = md4.New()
case "MD5":
hash_algorithm = md5.New()
case "RIPEMD128":
hash_algorithm = ripemd128.New()
case "RIPEMD160":
hash_algorithm = ripemd160.New()
case "SHA1":
hash_algorithm = sha1.New()
default:
return [8]byte{0, 0, 0, 0, 0, 0, 0, 0}, fmt.Errorf("NoSuchAlgorithmException: %s", otp.mAlgorithm)
}
hash_algorithm.Reset()
hash_algorithm.Write(UCS2_to_UTF8([]byte(_string_)))
otp.hash = hashValueTo8(hash_algorithm.Sum(nil))
for tmpseq > 0 {
hash_algorithm.Reset()
hash_algorithm.Write(otp.hash[:])
otp.hash = hashValueTo8(hash_algorithm.Sum(nil))
tmpseq--
}
return otp.hash, nil
}
func (s *descbc) Decrypt(salt []byte, algo, usage int, data []byte) ([]byte, error) {
var h hash.Hash
switch algo {
case cryptDesCbcMd5:
h = md5.New()
case cryptDesCbcMd4:
h = md4.New()
default:
return nil, ErrProtocol
}
if (len(data) & 7) != 0 {
return nil, ErrProtocol
}
iv := [8]byte{}
b, _ := des.NewCipher(s.key)
c := cipher.NewCBCDecrypter(b, iv[:])
c.CryptBlocks(data, data)
chk := make([]byte, h.Size())
h.Write(data[:8])
h.Write(chk) // Just need h.Size() zero bytes instead of the checksum
h.Write(data[8+len(chk):])
h.Sum(chk[:0])
if subtle.ConstantTimeCompare(chk, data[8:8+len(chk)]) != 1 {
return nil, ErrProtocol
}
return data[8+len(chk):], nil
}
func doWork(proc chanproc) {
//i := NBHASH / NBPROC
for {
pass := <-proc.pass
tmp := md4.New()
tmp.Write(pass)
//fmt.Println(proc.id, " pass : "******" len pass ", len(proc.pass))
tmp.Sum(nil)
/*
f, err := os.OpenFile("testlogfile", os.O_RDWR | os.O_CREATE | os.O_APPEND, 0666)
if err != nil {
t.Fatalf("error opening file: %v", err)
}
defer f.Close()
log.SetOutput(f)
log.Println("This is a test log entry")
i--
if i == 0 {
proc.temps <- time.Since(start)
return
}*/
}
}
func doWork(mdp chan []byte, done chan bool) {
for {
tmp := md4.New()
tmp.Write(<-mdp)
tmp.Sum(nil)
done <- true
}
}
func test() {
s1 := "Hello, MD4 test text"
ctx := md4.New()
ctx.Write([]byte(s1))
hash = ctx.Sum(nil)
}
func (s *descbc) Sign(algo, usage int, data ...[]byte) ([]byte, error) {
var h hash.Hash
switch algo {
case signGssDes:
sz := 0
for _, d := range data {
sz += len(d)
}
sz = (sz + 7) &^ 7
u := make([]byte, sz)
v := u[:0]
for _, d := range data {
v = append(v, d...)
}
iv := [8]byte{}
b, _ := des.NewCipher(s.key)
c := cipher.NewCBCEncrypter(b, iv[:])
c.CryptBlocks(u, u)
return u[len(u)-8:], nil
case signGssMd5Des:
h = md5.New()
for _, d := range data {
h.Write(d)
}
return s.Sign(signGssDes, usage, h.Sum(nil))
case signMd5Des:
h = md5.New()
case signMd4Des:
h = md4.New()
default:
return unkeyedSign(algo, usage, data...)
}
var key [8]byte
for i := 0; i < 8; i++ {
key[i] = s.key[i] ^ 0xF0
}
chk := make([]byte, 24)
io.ReadFull(rand.Reader, chk[:8])
h.Write(chk[:8])
for _, d := range data {
h.Write(d)
}
h.Sum(chk[8:])
iv := [8]byte{}
b, _ := des.NewCipher(s.key)
c := cipher.NewCBCEncrypter(b, iv[:])
c.CryptBlocks(chk, chk)
return chk, nil
}
func createWork(work chan hash.Hash, scanner *bufio.Scanner, done chan bool) {
for scanner.Scan() {
tmp2 := []byte(scanner.Text())
//fmt.Println(tmp2, "plop")
tmp := md4.New()
tmp.Write(tmp2)
work <- tmp
}
fmt.Println("CREATION FINI ! ")
done <- true
} /*
func makeHash(name string) hash.Hash {
switch strings.ToLower(name) {
case "ripemd160":
return ripemd160.New()
case "md4":
return md4.New()
case "md5":
return md5.New()
case "sha1":
return sha1.New()
case "sha256":
return sha256.New()
case "sha384":
return sha512.New384()
case "sha3-224":
return sha3.New224()
case "sha3-256":
return sha3.New256()
case "sha3-384":
return sha3.New384()
case "sha3-512":
return sha3.New512()
case "sha512":
return sha512.New()
case "sha512-224":
return sha512.New512_224()
case "sha512-256":
return sha512.New512_256()
case "crc32-ieee":
return crc32.NewIEEE()
case "crc64-iso":
return crc64.New(crc64.MakeTable(crc64.ISO))
case "crc64-ecma":
return crc64.New(crc64.MakeTable(crc64.ECMA))
case "adler32":
return adler32.New()
case "fnv32":
return fnv.New32()
case "fnv32a":
return fnv.New32a()
case "fnv64":
return fnv.New64()
case "fnv64a":
return fnv.New64a()
case "xor8":
return new(xor8)
case "fletch16":
return &fletch16{}
}
return nil
}
func hashChunks(input <-chan Chunk, output chan<- Chunk, wg *sync.WaitGroup) {
defer wg.Done()
hasher := md4.New()
for {
chunk, ok := <-input
if !ok {
return
}
hasher.Reset()
hasher.Write(chunk.bytes)
chunk.hash = hasher.Sum(nil)
output <- chunk
}
}
func doWork(proc chanproc) {
i := NBHASH / NBPROC
start := time.Now()
for {
tmp := md4.New()
tmp.Write(proc.currentPass)
tmp.Sum(nil)
i--
if i == 0 {
proc.temps <- time.Since(start)
return
}
proc.NextPass()
}
}
// rc4HmacKey converts a UTF8 password into a key suitable for use with the
// rc4hmac.
func rc4HmacKey(password string) []byte {
// Convert password from UTF8 to UTF16-LE
s := make([]byte, 0)
for _, r := range password {
if r > 0x10000 {
a, b := utf16.EncodeRune(r)
s = append(s, byte(a), byte(a>>8), byte(b), byte(b>>8))
} else {
s = append(s, byte(r), byte(r>>8))
}
}
h := md4.New()
h.Write(s)
return h.Sum(nil)
}
func unkeyedSign(algo, usage int, data ...[]byte) ([]byte, error) {
var h hash.Hash
switch algo {
case signMd5:
h = md5.New()
case signMd4:
h = md4.New()
default:
return nil, ErrProtocol
}
for _, d := range data {
h.Write(d)
}
return h.Sum(nil), nil
}
func Hash(reader io.Reader, oldMethod bool) (string, error) {
chunks := make(chan Chunk, 50)
hashes := make(chan Chunk, 50)
go readChunksToChannel(reader, chunks)
var wg sync.WaitGroup
for i := 0; i < runtime.NumCPU(); i++ {
wg.Add(1)
go hashChunks(chunks, hashes, &wg)
}
processedChan := make(chan CorrelatedChunks)
go correlateChunksToMap(hashes, processedChan)
wg.Wait()
close(hashes)
correlatedChunks := <-processedChan
hashList := make([]byte, 16*len(correlatedChunks.chunkMap))
for position, hash := range correlatedChunks.chunkMap {
copy(hashList[position*16:(position+1)*16], hash)
}
hasher := md4.New()
if correlatedChunks.totalBytes%BLOCK_SIZE == 0 && oldMethod == true {
hasher.Reset()
hasher.Write([]byte{})
hashList = hasher.Sum(hashList)
}
var finalSum []byte
if len(hashList) > 16 {
hasher.Reset()
hasher.Write(hashList)
finalSum = hasher.Sum(nil)
} else {
finalSum = hashList
}
return hex.EncodeToString(finalSum), nil
}
func (s *descbc) Encrypt(salt []byte, usage int, data ...[]byte) []byte {
var h hash.Hash
switch s.etype {
case cryptDesCbcMd5:
h = md5.New()
case cryptDesCbcMd4:
h = md4.New()
default:
panic("")
}
outsz := 8 + h.Size()
for _, d := range data {
outsz += len(d)
}
outsz = (outsz + 7) &^ 7
out := make([]byte, outsz)
io.ReadFull(rand.Reader, out[:8])
v := out[8+h.Size():]
for _, d := range data {
n := copy(v, d)
v = v[n:]
}
h.Write(out)
h.Sum(out[:8])
iv := [8]byte{}
b, _ := des.NewCipher(s.key)
c := cipher.NewCBCEncrypter(b, iv[:])
c.CryptBlocks(out, out)
return out
}
func getNtlm(password string) []byte {
cipher := md4.New()
cipher.Write(utf16FromString(password))
return cipher.Sum(nil)
}
// MD4 hash the UCS-2 value
func ntPasswordHash(r []byte) []byte {
d := md4.New()
d.Write(r)
return d.Sum(nil)
}
// HashNtPasswordHash
// Hash the MD4 to a hashhash MD4
func hashNtPasswordHash(hash []byte) []byte {
d := md4.New()
d.Write(hash)
return d.Sum(nil)
}
func getNtlmHash(password string) []byte {
hash := md4.New()
hash.Write(toUnicode(password))
return hash.Sum(nil)
}
func New() hash.Hash {
d := new(digest)
d.inner = md4.New()
d.total = md4.New()
return d
}
func ntlmHash(password string) (hash [21]byte) {
h := md4.New()
h.Write(utf16le(password))
h.Sum(hash[:0])
return
}
