Search results for: "SHA 256 HEX"

What are the potential security risks of using custom session handlers in PHP, like generating md5 hashes for session IDs?

Using custom session handlers in PHP, such as generating md5 hashes for session IDs, can pose security risks as md5 hashes are considered weak and vul...

What considerations should be taken into account when encoding passwords using the crypt() function in PHP, especially for Apache authentication?

When encoding passwords using the crypt() function in PHP for Apache authentication, it is important to use a strong hashing algorithm such as SHA-256...

How can one handle the limitation of 256 columns in the old Excel format when using PHPExcel?

The limitation of 256 columns in the old Excel format can be handled by using the PHPExcel library to write data to the newer Excel format (.xlsx) whi...

What are the potential pitfalls of converting a Java encryption script to PHP for AES 256 encryption?

One potential pitfall of converting a Java encryption script to PHP for AES 256 encryption is the difference in padding schemes used by default. Java...

Are regular expressions or ctype_xdigit more efficient for validating HEX content in PHP?

Regular expressions are typically more efficient for validating HEX content in PHP compared to using ctype_xdigit. Regular expressions offer more flex...