I need help on changing the codification of a string copied and pasted from clipboard...
The curious string is "español":
$problematicString = "español"; //copied and pasted from a filename$okString = "español"; //typedecho md5($problematicString)."<br>";echo md5($okString)."<br>";
This is the output:
Why are the
md5() outputs different for the same strings?
I've tried changing both strings using:
mb_convert_encoding($string, "ISO-8859-1", "UTF-8") but the output is still different.
i need to fix the problematicString programmatically so that it shows the same hash as the other string
Is there possible to change MD5 to specific MD5 .I am now trying to create a program in VB.net to Change MD5 . It possible to change by addbytes to selected program . But that solution is not a specific MD5:( So i just want to now that is there possible to change md5 to specific md5 like 28d8785d6fd912e5491df0b175df9290 .
Very Thank you .
The following is my code.
@ECHO offSETLOCAL ENABLEDELAYEDEXPANSIONSET targetFile=%1SET targetMD5=%2::read MD5CALL md5.exe -n %targetFile% > md5.txtFOR /f "tokens=* delims=" %%i in (md5.txt) do (SET FileMD5=%%i) ECHO "FileMD5=%FileMD5%"DEL md5.txt::read MD5.txtSET /A row=0FOR /f "tokens=* delims=" %%f in (%targetMD5%) do (SET OrgMD5=%%f) ECHO "OrgMD5=%FileMD5%"::compareIF "%FileMD5%" EQU "%OrgMD5%" (ECHO 1) ELSE (ECHO The target file was modified.ECHO 0)ENDLOCAL
However, the result is:
"FileMD5=468C15F33FC55E6A388D505024ED723A""OrgMD5=468C15F33FC55E6A388D505024ED723A"The target file was modified.0
I think the FileMD5 is the same as OrgMD5. But the EQU operator doesn't think so.
If i remove the quotes, and the code become:
::compareIF %FileMD5% EQU %OrgMD5% (ECHO 1) ELSE (ECHO The target file was modified.ECHO 0)
The result is:
"FileMD5=468C15F33FC55E6A388D505024ED723A""OrgMD5=468C15F33FC55E6A388D505024ED723A"1The target file was modified.0
If i changed the code to:
::compareIF "%FileMD5%" EQU "468C15F33FC55E6A388D505024ED723A" (ECHO 1) ELSE (ECHO The target file was modified.ECHO 0)
The result is what i want, but the MD5 code should not always be 468C15F33FC55E6A388D505024ED723A.
I'm so embarrassing for the wrong code. So I corrected it as below.
::read MD5.txtSET /A row=0FOR /f "tokens=1 delims= " %%f in (%targetMD5%) do (SET OrgMD5=%%fGOTO compare):compareECHO "FileMD5=%FileMD5%"ECHO "OrgMD5=%OrgMD5%"IF "%FileMD5%" EQU %OrgMD5% (GOTO pass) ELSE (GOTO fail):passECHO 1GOTO :eof:failECHO The target file was modified.ECHO 0GOTO :eofENDLOCAL
However, these "compare" always go to "fail".
"FileMD5=468c15f33fc55e6a388d505024ed723a""OrgMD5=468c15f33fc55e6a388d505024ed723a"The target file was modified.0
MessageDigest md = MessageDigest.getInstance("MD5");byte MessageDigest = md.digest(input.getBytes());System.out.println("Byte Representation" +MessageDigest);BigInteger number = new BigInteger(1, MessageDigest);
What does "1" represents in BigInteger constructor in above line..?the program is of MD5.
I'm trying to do a comparison of large strings (5,000 - 80,000 characters) between two tables in an oracle DB and simply determine if there are any differences. I plan on converting the strings into BLOBs before storing them and was looking at two methods for doing the comparison.
What would be the likely differences in performance and accuracy using the DBMS_LOB.compare function vs using the MD5 hash function and generating a checksum to compare two BLOBs?