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OTP_TS: Encrypt and decrypt data with one time pad cipher

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2008-01-16 (6 years ago) RSS 2.0 feedNot yet rated by the usersTotal: 751 All time: 4,121 This week: 1,319Up
Version License PHP version Categories  
otp_ts 1GNU Lesser General Publ...4.0Cryptography
Description Author  

This class can be used to encrypt and decrypt data with one time pad cipher algorithm implemented in pure PHP.

The class has a single function that takes a password and a string of the data to encrypt.

The password is used to create a cypher that encrypts the data using an XOR operation.

The same function to encrypt can be used to decrypt the encrypted data using the same password.

Innovation Award  
PHP Programming Innovation award nominee
June 2007
Number 8


Prize: One downloadable copy of PhpED Professional
The quality of encryption algorithms depends on how hard they are to break using brute force methods.

Most strong encryption methods also take a lot of CPU resources to encrypt and decrypt data.

One time pad algorithms are much simpler and take less resources when used to encrypt and decrypt data.

This class implements a one-time pad algorithm in pure PHP code. It generates several hashes of the encryption password to compute a random cypher that is used to encrypt and decrypt data.

The actual encryption and decryption is very light because it consists of a simple XOR operation over the data to encrypt or decrypt. The encryption and encryption procedure is the same, making the class very small.

Manuel Lemos
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Name: Jacek Wloka <contact>
Classes: 6 packages by
Country: Poland Poland
Age: 27
All time rank: 3546 in Poland Poland
Week rank: 280 Up10 in Poland Poland Down
Innovation award
Innovation award
Nominee: 1x

Screenshots  
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  Files folder image Files  
File Role Description
Plain text file example_file.php Example Example 1 of file
Plain text file example_form.php Example Example 3
Plain text file example_txt.php Example Text example 1
Plain text file class.OTP_TS.php Class class OTP_TS
Image file linux.bmp Icon img 1

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