Returns the MD5, SHA1, or SHA256 digest (fingerprint) or simple CRC of a binary buffer.
BinaryCheckSum( handle, request )
(i) handle: handle of buffer.
(i) request: specifies the type of digest or CRC to generate. See below.
(s) a hex-value string.
request
Specifies the type of digest or CRC to generate, and can be one of the following values:
|
Request |
Meaning |
Return String Format (x=hex character) |
|
0 |
MD5 digest |
"xxxxxxxx-xxxxxxxx-xxxxxxxx-xxxxxxxx" |
|
1 |
16-bit CRC |
"xxxx" |
|
2 |
32-bit CRC |
"xxxxxxxx" |
|
3 |
SHA1 * |
"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" |
|
4 |
SHA256 * |
"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" |
* Requires Windows Vista/2008 or newer
Note: this function supports binary buffers up to 4GBs when used with 64-bit WinBatch.
fn="C:\testfile.txt"
fs=FileSize(fn)
bb=BinaryAlloc(fs)
BinaryRead(bb,fn)
MD5=BinaryChecksum(bb,0)
BinaryFree(bb)
Message("MD5 Fingerprint",StrCat(fn,@CRLF,MD5))