Function secure_alloc 

pub fn secure_alloc(size: usize) -> Option<*mut u8>

Secure memory allocation with enhanced security features

Allocates memory securely with proper alignment, zeroing, and protection. Implements secure memory allocation best practices including:

• Proper alignment for security-sensitive data
• Memory zeroing to prevent data leakage
• Compiler barriers to prevent optimization
• Memory protection where available

Arguments

• size - Size of memory to allocate
• alignment - Memory alignment (defaults to cache line size for security)

Returns

• Some(ptr) if allocation succeeds, None otherwise

Security

This function allocates memory securely and zeros it to prevent data leakage from previous allocations. Uses cache-line alignment to prevent side-channel attacks through cache timing.