文件名称：MD5 HASHING FOR VFP
文件大小：30KB
文件格式：ZIP
更新时间：2011-08-01 04:08:29
md5 vfp
MD5 for VFP is derived from the RSA Data Security, Inc. MD5
Message-Digest Algorithm. MD5 is a hashing function that accepts a
string of arbitrary length and generates a 16-byte encrypted
"message digest" that is (a) unique and (b) not reversible. It is
much more reliable than a checksum. Unlike sys(2007), it does not
produce duplicates. (The probability of a duplicate is estimated
at one case in 2^64; i.e., 18 x 10^18, which should be good enough
for most of us.)
The MD5 algorithm is intended for digital signature applications,
where a large file must be "compressed" in a secure manner before
being encrypted with a private (secret) key under a public-key
cryptosystem such as RSA.
MD5 has been implemented for Visual Foxpro by Duke Lotherington, of
Visual Records in San Diego, by wrapping the C++ function into an
FLL library.
【文件预览】：
MD5.FLL
MD5.TXT
SOURCE.ZIP