PHP OpenSSL Encrypt and Decrypt File: Encrypt and decrypt file data using OpenSSL
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It takes a given password and encrypts data read from a file using the OpenSSL extension.
The class can also decrypt previously encrypted files using the same password.
OpenSSL File Encrypt
Simple symmetric file encryption.
Purpose
Provide strong file encryption using OpenSSL, via an easy-to-use PHP wrapper.
One use is to avoid direct OpenSSL interaction, such as:
openssl enc -e -aes-256-cbc -in abc.txt -out abc.enc -k password -S deadbeef
and offer something simpler:
php cmdline_example.php -e abc.txt
Example
Encrypt
php cmdline_example.php -e abc.txt
results in the encrypted file abc.txt.osl
Decrypt
php cmdline_example.php -d abc.txt.osl
results in abc.txt, with the correct password
-- and overwrites the original file abc.txt if it is present in the same directory.
Max File Size
The maximum file size that can be processed is approximately 1.8GB.
This limit is seemingly dictated by the PHP openssl module (OpenSSL itself on the command-line will process 2GB+ files).
Low Memory Systems
A file-chunking version for limited memory availability works with the non-counter (CTR) mode ciphers.
Appending the HMAC to the final file and decrypting successfully is not yet ready.
License
OpenSSL File Encrypt is released under the GPL v.3.
| Classes of Martin Latter | > | PHP OpenSSL Encrypt and Decrypt File | > |  Download .zip .tar.gz |
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| Groups | Applications |  Files |
| Groups |
 PHP 5 |
Classes using PHP 5 specific features | View top rated classes |
| Cryptography |
Encrypting, decrypting and hashing data | View top rated classes |
| Applications that use this package |
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| Files |
| File | Role | Description | ||
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| classes (1 file) |
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| file_examples (1 file) |
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 cmdline_example.php |
Example | Example script | ||
| LICENSE |
Lic. | License text | ||
| README.md |
Doc. | Documentation | ||
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