FerryBoot implements multiple layers of security to protect the boot process and ensure system integrity.

FerryBoot supports BIOS password protection:

• Master password for bootloader access
• User password for specific boot entries
• Password hashing with salted SHA-256

UEFI systems use the platform's built-in password features:

• Setup password for firmware settings
• Boot password for OS selection
• Integration with UEFI security protocols

FerryBoot supports UEFI Secure Boot:

• Signed bootloader binaries
• Verification of OS kernel signatures
• Integration with Microsoft UEFI CA
• Support for custom certificate authorities

For BIOS systems, FerryBoot implements its own secure boot mechanism:

• RSA signature verification
• SHA-256 hashing
• Certificate chain validation
• Revocation list support

FerryBoot can unlock LUKS-encrypted volumes:

• Prompt for passphrase
• Support for key files
• Integration with LUKS header parsing
• Support for multiple key slots

FerryBoot supports BitLocker-encrypted volumes:

• TPM integration
• Recovery key support
• Password/PIN authentication
• Compatible with Windows BitLocker

FerryBoot supports VeraCrypt-encrypted volumes:

• Password authentication
• Keyfile support
• Hidden volume detection
• System encryption support

FerryBoot verifies kernel signatures before loading:

• RSA signature checking
• SHA-256/SHA-512 hashing
• Certificate validation
• Certificate revocation checking

For unsigned kernels, FerryBoot can verify file hashes:

• SHA-256 kernel hash verification
• Configuration-stored hash values
• Automatic hash generation tool

FerryBoot implements stack protection:

• Stack canaries
• Stack overflow detection
• Secure stack initialization

Memory allocation protection:

• Bounds checking
• Double-free detection
• Use-after-free prevention

FerryBoot supports TPM for trusted boot:

• PCR extension
• Measured boot
• Attestation support
• Seal/unseal operations

Boot process integrity measurement:

• Component hashing
• Measurement log
• Remote attestation
• Integrity verification

For network boot operations:

• TLS/SSL support
• Certificate validation
• Encrypted PXE boot
• Secure configuration download

Protect bootloader from tampering:

• Self-checksum verification
• Read-only storage
• Hardware-based protection
• Tamper detection alerts

Secure configuration storage:

• Encrypted configuration
• Integrity verification
• Access control
• Audit logging

FerryBoot uses proven cryptographic implementations:

• RSA for asymmetric cryptography
• AES for symmetric encryption
• SHA-256/SHA-512 for hashing
• HMAC for message authentication

Secure key storage and management:

• Hardware key storage (TPM)
• Secure key derivation
• Key rotation support
• Certificate management

// Hash functions
int sha256_hash(const void* data, size_t len, uint8_t* hash);
int sha512_hash(const void* data, size_t len, uint8_t* hash);

// RSA operations
int rsa_verify(const uint8_t* signature, size_t sig_len,
               const uint8_t* data, size_t data_len,
               const rsa_public_key_t* pubkey);

// AES operations
int aes_decrypt(const uint8_t* ciphertext, size_t len,
                const uint8_t* key, size_t key_len,
                const uint8_t* iv, uint8_t* plaintext);

// Security module interface
typedef struct {
    int (*init)(void);
    void (*cleanup)(void);
    int (*verify_signature)(const uint8_t* sig, size_t sig_len,
                           const uint8_t* data, size_t data_len);
    int (*decrypt_volume)(const char* device, const char* passphrase);
} security_module_t;

Regular security testing:

• Static analysis
• Dynamic analysis
• Fuzz testing
• Penetration testing

Security standard compliance:

• NIST guidelines
• FIPS 140-2
• Common Criteria
• ISO 27001

Security-focused development practices:

• Secure coding guidelines
• Code review processes
• Threat modeling
• Security training

Secure deployment practices:

• Secure key management
• Regular updates
• Monitoring and logging
• Incident response