Files
bux-lang/lib/crypto/ed25519.bux
T
dimgigov e7e900973f feat: crypto library, Nexus HTTP server, JWT CLI, Boko web framework
- lib/crypto/: 9-module crypto library (Hash, HMAC, Base64/URL, Random, AES, RSA, ECDSA, Ed25519, JWT)
- rt/runtime.c: +346 lines OpenSSL crypto primitives (SHA-1/384/512, HMAC, Base64URL, AES-CBC/GCM, RSA, ECDSA, Ed25519)
- apps/nexus/: multi-threaded HTTP/1.1 + HTTP/2 detect + WebSocket server
- apps/jwt-pitbul/: JWT CLI tool (sign, verify, decode, keygen)
- apps/boko-framework/: FastAPI-inspired async web framework
- test_crypto/: crypto library test suite (23 tests)
2026-06-07 22:15:00 +03:00

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// =============================================================================
// Std::Crypto::Ed25519 — Ed25519 key generation, signing, and verification
// =============================================================================
module Std::Crypto::Ed25519 {
import Std::Mem::{Alloc, Free};
import Std::String::{String_Len, String_Concat};
extern func bux_ed25519_keypair(pubKey: *void, privKey: *void) -> int;
extern func bux_ed25519_sign(privKey: String, data: String, datalen: int, sig: *void) -> int;
extern func bux_ed25519_verify(pubKey: String, sig: String, data: String, datalen: int) -> int;
extern func bux_base64_encode(data: String, len: int) -> String;
extern func bux_base64_decode(data: String, len: int, outlen: *int) -> String;
const ED25519_PUBKEY_SIZE: int = 32;
const ED25519_PRIVKEY_SIZE: int = 32;
const ED25519_SIG_SIZE: int = 64;
// --- Key Generation ---
// Ed25519_Keypair: generates a new keypair.
// Returns true on success. pubKey and privKey receive 32-byte raw keys.
func Ed25519_Keypair(pubKey: *void, privKey: *void) -> bool {
let r: int = bux_ed25519_keypair(pubKey, privKey);
return r == 1;
}
// Convenience: generate and return base64-encoded keypair
func Ed25519_KeypairBase64() -> String {
let pub: *void = Alloc(ED25519_PUBKEY_SIZE as uint);
let priv: *void = Alloc(ED25519_PRIVKEY_SIZE as uint);
if bux_ed25519_keypair(pub, priv) != 1 {
Free(pub);
Free(priv);
return "";
}
// Return "pub_b64:priv_b64"
let pubB64: String = bux_base64_encode(pub as String, ED25519_PUBKEY_SIZE);
let privB64: String = bux_base64_encode(priv as String, ED25519_PRIVKEY_SIZE);
Free(pub);
Free(priv);
let pair: String = String_Concat(pubB64, ":");
return String_Concat(pair, privB64);
}
// --- Sign ---
// Ed25519_Sign: sign data with 32-byte raw private key. Returns 64-byte raw signature.
func Ed25519_Sign(privKey: String, data: String) -> String {
let sig: *void = Alloc(ED25519_SIG_SIZE as uint);
if bux_ed25519_sign(privKey, data, String_Len(data) as int, sig) != 1 {
Free(sig);
return "";
}
return sig as String;
}
// Convenience: sign and return base64-encoded signature
func Ed25519_SignBase64(privKey: String, data: String) -> String {
let sig: String = Ed25519_Sign(privKey, data);
if String_Len(sig) == 0 { return ""; }
return bux_base64_encode(sig, ED25519_SIG_SIZE);
}
// --- Verify ---
// Ed25519_Verify: verify a 64-byte raw signature against data with 32-byte public key.
func Ed25519_Verify(pubKey: String, signature: String, data: String) -> bool {
let r: int = bux_ed25519_verify(pubKey, signature, data, String_Len(data) as int);
return r == 1;
}
// Convenience: verify a base64-encoded signature
func Ed25519_VerifyBase64(pubKey: String, signatureB64: String, data: String) -> bool {
let outlen: int = 0;
let sig: String = bux_base64_decode(signatureB64, String_Len(signatureB64) as int, &outlen);
if outlen != ED25519_SIG_SIZE { return false; }
return Ed25519_Verify(pubKey, sig, data);
}
}