php Programming Glossary: bits

http://stackoverflow.com/questions/2040240/php-function-to-generate-v4-uuid

return sprintf ' 04x 04x 04x 04x 04x 04x 04x 04x' 32 bits for time_low mt_rand 0 0xffff mt_rand 0 0xffff 16 bits for time_mid.. 32 bits for time_low mt_rand 0 0xffff mt_rand 0 0xffff 16 bits for time_mid mt_rand 0 0xffff 16 bits for time_hi_and_version.. mt_rand 0 0xffff 16 bits for time_mid mt_rand 0 0xffff 16 bits for time_hi_and_version four most significant bits holds version..

How should I ethically approach user password storage for later plaintext retrieval?

http://stackoverflow.com/questions/2283937/how-should-i-ethically-approach-user-password-storage-for-later-plaintext-retrie

a total of 72 valid symbols would have an entropy of 61.7 bits. Using a dictionary of 7776 words as Diceware uses which could.. passphrase the passphrase would have an entropy of 77.4 bits. See the Diceware FAQ for more info. a passphrase with about.. the Diceware FAQ for more info. a passphrase with about 77 bits of entropy admit prose flare table acute flair a password with..

What are the best PHP input sanitizing functions?

http://stackoverflow.com/questions/3126072/what-are-the-best-php-input-sanitizing-functions

data to the user you need to make sure that malicious bits haven't found their way in. Unless you know that the data is..

Secure hash and salt for PHP passwords

http://stackoverflow.com/questions/401656/secure-hash-and-salt-for-php-passwords

at 8 characters for a password is still too low 52.679 bits of entropy for future security. But the good news is longer..

PHP 2-way encryption: I need to store passwords that can be retrieved

http://stackoverflow.com/questions/5089841/php-2-way-encryption-i-need-to-store-passwords-that-can-be-retrieved

configured for true random keys of sufficient strength 128 bits of Cryptographically Secure random at a minimum . If you are.. use a password or non random key or less random then 128 bits of CS random you must increase this parameter. I would suggest..

Headers already sent by PHP

http://stackoverflow.com/questions/8028957/headers-already-sent-by-php

collected headers. Afterwards it can send all the output bits it wants. But sending further headers is impossible from then...

Can PHP read the hash portion of the URL?

http://stackoverflow.com/questions/940905/can-php-read-the-hash-portion-of-the-url

through JavaScript. Anyway you could parse a URL into bits including the fragment part using parse_url but it's obviously..

How to hash long passwords (>72 characters) with blowfish

http://stackoverflow.com/questions/16594613/how-to-hash-long-passwords-72-characters-with-blowfish

The number of bits of entropy per byte are Hex Characters Bits 4 Values 16 Entropy In 72 Chars 288 bits Alpha Numeric Bits.. 4 Values 16 Entropy In 72 Chars 288 bits Alpha Numeric Bits 6 Values 62 Entropy In 72 Chars 432 bits Common Symbols Bits.. 6 Values 62 Entropy In 72 Chars 432 bits Common Symbols Bits 6.5 Values 94 Entropy In 72 Chars 468 bits Full Bytes Bits 8..

Force PHP integer overflow

http://stackoverflow.com/questions/300840/force-php-integer-overflow

Bitmask in PHP for settings?

http://stackoverflow.com/questions/5319475/bitmask-in-php-for-settings

in PHP for settings Bits Bitmask are something I have been struggling to understand for..

RSA Android Encrypt / RSA PHP Decrypt

http://stackoverflow.com/questions/7331684/rsa-android-encrypt-rsa-php-decrypt

input Base64.DEFAULT . For the certificate i use RSA 2048 Bits convert into DER Format for Android. SOLUTION Error are in..