Cryptography Security Check

Analyze PHP code for cryptographic vulnerabilities.

Detection Patterns

1. Weak Hashing Algorithms

// CRITICAL: Broken for passwords
$hash = md5($password);
$hash = sha1($password);
$hash = hash('sha256', $password);
$hash = crypt($password, '$1$salt$'); // MD5-based

// CRITICAL: No salt
$hash = hash('sha256', $password); // Rainbow table attack