Hacker Professional Ebook part 135

Tham khảo tài liệu 'hacker professional ebook part 135', công nghệ thông tin, an ninh - bảo mật phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | static inline void crypto_chksum_digest struct crypto_tfm tfm struct scatterlist sg unsigned int nsg u32 out BUG_ON crypto_tfm_alg_type tfm CRYPTO_ALG_TYPE_CHKSUM tfm- tfm sg nsg out HMAC support. -- Clay Haapala chaapala@ Cisco Systems SRBU 1 763-398-1056 6450 Wedgwood Rd Suite 130 Maple Grove MN 55311 PGP C89240AD Funny I didn t think Haliburton was into aerospace. Visual Basic Code Public Class CRC32 This is v2 of the VB CRC32 algorithm provided by Paul wpsjr1@ - much quicker than the nasty original version I posted. Excellent work Private crc32Table As Integer Private Const BUFFER_SIZE As Integer 1024 Public Function GetCrc32 ByRef stream As As Integer Dim crc32Result As Integer crc32Result HFFFFFFFF Dim buffer BUFFER_SIZE As Byte Dim readSize As Integer BUFFER_SIZE Dim count As Integer buffer 0 readSize Dim i As Integer Dim iLookup As Integer Dim tot As Integer 0 Do While count 0 For i 0 To count - 1 iLookup crc32Result And HFF Xor buffer i crc32Result crc32Result And HFFFFFF00 H100 And HFFFFFF nasty shr 8 with vb crc32Result crc32Result Xor crc32Table iLookup Next i count buffer 0 readSize Loop GetCrc32 Not crc32Result End Function Public Sub New This is the official polynomial used by CRC32 in PKZip. Often the polynomial is shown reversed 04C11DB7 . Dim dwPolynomial As Integer HEDB88320 Dim i As Integer j As Integer ReDim crc32Table 256 Dim dwCrc As Integer For i 0 To 255 dwCrc i For j 8 To 1 Step -1 If dwCrc And 1 Then dwCrc dwCrc And HFFFFFFFE 2 And H7FFFFFFF dwCrc dwCrc Xor dwPolynomial Else dwCrc dwCrc And HFFFFFFFE 2 And H7FFFFFFF End If Next j crc32Table i dwCrc Next i End Sub End Class Zombie REA MD5 Algorithm Tác giả Benina thu lượm Đây là bản beta mong ý kiến đóng góp của các bạn. Sau bao ngày ngâm cứu tốn kém bao nhiêu là nước mũi do bị cảm và bao nhiêu là nước mắt do vừa hút thuốc vừa đọc màn hình vi tính hôm nay benina xin trình làng kết quả công trình ngâm cứu .