check out this http://www.netikka.net/tsneti/info/tscmd052.htm @echo off & setlocal enableextensions :: Build a Visual Basic Script set vbs_=%temp%\tmp$$$.vbs set skip= findstr “‘%skip%VBS” “%~f0” > “%vbs_%” :: :: Prompting without linefeed as in Item #15 echo.|set /p=”Password: ” :: Run the script with Microsoft Windows Script Host Version 5.6 for /f “tokens=* delims=” %%a in (‘cscript //nologo … Read more
If your system provides it, getpass is an option: #include <unistd.h> /* … */ char *password = getpass(“Password: “); This will not display anything as characters are typed.
For certain operations on encrypted documents iText(Sharp) requires that the document not merely is opened with the user password but instead with the owner password. This corresponds to the definition of these passwords in the PDF specification: Whether additional operations shall be allowed on a decrypted document depends on which password (if any) was supplied … Read more
A better solution would be mt_rand which uses Mersenne Twister which much more better. As has been pointed out, the str_shuffle method is not equivalent to the code I’m already using and will be less random due to the string’s characters remaining the same as the input, only with their order changed. However I’m still … Read more
Summary The full combinations of 4 to 9 distinctive numbers, minus the combinations which include invalid “jump”s. The Long Version The rule for Android 3×3 password grid: one point for once cannot “jump” over a point The author of the original post used Mathematica to generate all 985824 combinations. Because there is no “jump”, several … Read more
Definition: Hashing is the application of a function f() to a variable sized input to produce a constant sized output. A => f() => X B => f() => Y C => f() => Z A hash is also a one-way function which means that there isn’t a function to reverse or undo a hash. … Read more
Just to learn – would this kind of requirement be possible to implement in pure regex? That’d make it a rather hard to read (and therefor maintain!) solution, but here it is: (?mx) ^ ( (?=.*[a-z])(?=.*[A-Z])(?=.*[0-9]) # must contain a-z, A-Z and 0-9 | # OR (?=.*[a-z])(?=.*[A-Z])(?=.*[!@\#$%&/=?_.,:;\\-]) # must contain a-z, A-Z and special | … Read more
Use expect’s stty command like this: # grab the password stty -echo send_user — “Password for $user@$host: ” expect_user -re “(.*)\n” send_user “\n” stty echo set pass $expect_out(1,string) #… later send — “$pass\r” Note that it’s important to call stty -echo before calling send_user — I’m not sure exactly why: I think it’s a timing … Read more
The sanctified method is to use CryptoAPI and the Data Protection APIs. To encrypt, use something like this (C++): DATA_BLOB blobIn, blobOut; blobIn.pbData=(BYTE*)data; blobIn.cbData=wcslen(data)*sizeof(WCHAR); CryptProtectData(&blobIn, description, NULL, NULL, NULL, CRYPTPROTECT_LOCAL_MACHINE | CRYPTPROTECT_UI_FORBIDDEN, &blobOut); _encrypted=blobOut.pbData; _length=blobOut.cbData; Decryption is the opposite: DATA_BLOB blobIn, blobOut; blobIn.pbData=const_cast<BYTE*>(data); blobIn.cbData=length; CryptUnprotectData(&blobIn, NULL, NULL, NULL, NULL, CRYPTPROTECT_UI_FORBIDDEN, &blobOut); std::wstring _decrypted; _decrypted.assign((LPCWSTR)blobOut.pbData,(LPCWSTR)blobOut.pbData+blobOut.cbData/sizeof(WCHAR)); If … Read more
^\S*(?=\S{8,})(?=\S*[a-z])(?=\S*[A-Z])(?=\S*[\d])\S*$ From the fine folks over at Zorched. ^: anchored to beginning of string \S*: any set of characters (?=\S{8,}): of at least length 8 (?=\S*[a-z]): containing at least one lowercase letter (?=\S*[A-Z]): and at least one uppercase letter (?=\S*[\d]): and at least one number $: anchored to the end of the string To include … Read more