Nofuture.go - Post-Quantum Cryptographic System
MemGuard Initialization & Configuration:
memguard.CatchInterrupt()
memguard.Purge()
unix.Mlockall(unix.MCL_CURRENT | unix.MCL_FUTURE)
- Secure Memory Locking: Prevents swapping sensitive data to disk
- Interrupt Handling: Automatic memory purge on SIGINT/SIGTERM
- Deep Memory Purge: Secure wiping of allocated buffers
MemGuard in Key Lifecycle Management:
passphrase, _ := memguard.NewImmutableRandom(32)
defer passphrase.Destroy()
- Immutable Buffers: Write-protected memory regions
- Ephemeral Storage: Keys exist only in protected memory
- Automatic Destruction: Guaranteed wipe with defer
Enclave-Based Cryptography:
func deriveEnclaveKey(passphrase *memguard.Enclave) {
passBuf, _ := passphrase.Open()
defer passBuf.Destroy()
}
- Double-Layer Protection: Enclave wrapping + locked buffers
- Controlled Exposure: Temporary buffer access patterns
- Zero-Copy Architecture: Minimize memory exposure
Quantum-Safe Key Exchange:
pubKey, secKey, _ := quantumKEMKeyPair()
defer pubKey.Destroy()
defer secKey.Destroy()
- MemGuard-Protected Keys:
- Public Key: Immutable locked buffer
- Private Key: Enclave-wrapped storage
- Zeroization on Completion: Guaranteed key destruction
Secure Session Management:
type QuantumSession struct {
sessionKey *memguard.Enclave
remotePubKey *memguard.Enclave
}
- Enclave-Wrapped Session Keys: Encrypted memory storage
- Forward Secrecy: Ephemeral session keys
- Compartmentalization: Isolated memory regions per session
Memory-Hardened Cryptography:
lockedKey, _ := memguard.NewImmutableFromBytes(key)
defer lockedKey.Destroy()
- Argon2 in Protected Memory:
- Memory-hard derivation in locked buffers
- Secure salt handling
- Multi-Layer Protection:
- mlock() system calls
- MADV_DONTDUMP flags
- Guard pages
MemGuard Best Practices
- ๐ Always use
defer .Destroy() with LockedBuffers
- ๐ก๏ธ Prefer
NewImmutable for long-lived secrets
- โ ๏ธ Never expose Enclave contents to logging
- ๐ Use rolling buffers for repeated operations
- ๐งน Explicit
Purge() after critical operations