libsodium's roadmap is driven by its user community and new ideas are always welcome.

New features will be gladly implemented provided that they are not redundant and solve common problems.

pre-1.0.0 roadmap

• AEAD construction (ChaCha20Poly1305)

• API to set initial counter value in ChaCha20/Salsa20

• Big-endian compatibility

• BLAKE2

• ChaCha20

• Constant-time comparison

• Cross-compilation support

• Detached authentication for crypto_box() and crypto_secretbox()

• Detached signatures

• Deterministic key generation for crypto_box()

• Deterministic key generation for crypto_sign()

• Documentation

• Ed25519 signatures

• Emscripten support

• FP rounding mode independent poly1305 implementation

• Faster portable curve25519 implementation

• Fix undefined behaviors for C99

• Guarded memory

• HMAC-SHA512, HMAC-SHA256

• Hex codec

• Hide specific implementations, expose wrappers

• Higher-level API for crypto_box

• Higher-level API for crypto_secretbox

• Lift ZEROBYTES requirements

• Make all constants accessible via public functions

• MingW port

• Minimal build mode

• NuGet packages

• Password hashing

• Pluggable random number generator

• Portable memory locking

• Position-independent code

• Replace the build system with autotools/libtool

• Runtime CPU features detection

• Secure memory zeroing

• Seed and public key extraction from an ed25519 secret key

• SipHash

• Streaming support for hashing and authentication

• Streaming support for one-time authentication

• Support for arbitrary HMAC key lengths

• Support for architectures requiring strict alignment

• Visual Studio port

• 100% code coverage, static and dynamic analysis

• arc4random*() compatible API

• Ed25519 to X25519 keys conversion

• iOS/Android compatibility

1.0.x roadmap

• Constant-time bin2hex() [DONE] and hex2bin() [DONE]

• Constant-time base64 codecs [DONE]

• Improve consistency and clarity of function prototypes

• Improve the documentation

• Consider getrandom(2) [DONE]

• Consider Gitian​

• Complete the sodium-validation project

• Optimized implementations for ARM w/NEON

• AVX optimized Curve25119 [DONE]

• Precomputed interface for crypto_box_easy() [DONE]

• First-class support for Javascript [DONE]

• chacha20 and chacha20poly1305 with a 96 bit nonce and a 32 bit counter

  [DONE]

• IETF-compatible chacha20poly1305 implementation [DONE]

• SSE-optimized BLAKE2b implementation [DONE]

• AES-GCM [DONE]

• AES-GCM detached mode [DONE]

• Use Montgomery reduction for GHASH

• ChaCha20-Poly1305 detached mode [DONE]

• Argon2i as crypto_pwhash [DONE]

• Argon2id as crypto_pwhash [DONE]

• Multithreaded crypto_pwhash [on hold]

• Generic subkey derivation API [DONE]

• Nonce-misuse resistant scheme

• BLAKE2 AVX2 implementations [DONE]

• Keyed (hash-then-encrypt) crypto_pwhash

• Consider Yescrypt

• Consider BLAKE2X [on hold]

• Argon2id [DONE]

• Port libhydrogen's key exchange API

• SSSE3 ChaCha20 implementation [DONE]

• SSSE3 Salsa20 implementation [DONE]

• SSSE3 Poly1305 implementation [DONE]

• AVX2 Salsa20 implementation [DONE]

• AVX2 ChaCha20 implementation [DONE]

• AVX2 Poly1305 implementation

• AVX512 implementations [done for Argon2, withold for other operations due to

  throttling concerns]

• key generation API [DONE]

• Nonce/subkey generation API

• Webassembly support [DONE]

• Stream encryption using a CHAIN-like construction [DONE]

• Security audit by a 3rd party [DONE]

• Formally-verified implementations [on hold]

• Padding API [DONE]

• secretstream_inject() for nonce misuse-resistance [on hold]

• Point addition, substraction [DONE]

• Point validation [DONE]

• Hash-to-point (Elligator) [DONE]

• SPAKE2+ [DONE]

• Support server relief in the password hashing API

• Ristretto [DONE]

• Consider a streaming interface for crypto_shorthash_*()

• AEGIS-256 [DONE]

• AEGIS-128L [DONE]

• AEGIS-based secretstream API

• BLAKE3

• HKDF/SHA-512 and HKDF/SHA-256 [DONE]

• Standard hash-to-curve [DONE]

• Consider signcryption​

• Consider HPKE

• High-level AEAD and secretstream APIs

2.0.0 roadmap

• Switch to a new API (libhydrogen/WASI-crypto)

• Session support

• PQC