216 lines
7.0 KiB
C
216 lines
7.0 KiB
C
#include <sodium.h>
|
|
|
|
#include <erl_nif.h>
|
|
|
|
#include "aead.h"
|
|
#include "enacl.h"
|
|
|
|
/*
|
|
* AEAD ChaCha20 Poly1305
|
|
*/
|
|
ERL_NIF_TERM
|
|
enacl_crypto_aead_chacha20poly1305_KEYBYTES(ErlNifEnv *env, int argc,
|
|
ERL_NIF_TERM const argv[]) {
|
|
return enif_make_int64(env, crypto_aead_chacha20poly1305_ietf_KEYBYTES);
|
|
}
|
|
|
|
ERL_NIF_TERM
|
|
enacl_crypto_aead_chacha20poly1305_NPUBBYTES(ErlNifEnv *env, int argc,
|
|
ERL_NIF_TERM const argv[]) {
|
|
return enif_make_int64(env, crypto_aead_chacha20poly1305_ietf_NPUBBYTES);
|
|
}
|
|
|
|
ERL_NIF_TERM
|
|
enacl_crypto_aead_chacha20poly1305_ABYTES(ErlNifEnv *env, int argc,
|
|
ERL_NIF_TERM const argv[]) {
|
|
return enif_make_int64(env, crypto_aead_chacha20poly1305_ietf_ABYTES);
|
|
}
|
|
|
|
ERL_NIF_TERM
|
|
enacl_crypto_aead_chacha20poly1305_MESSAGEBYTES_MAX(ErlNifEnv *env, int argc,
|
|
ERL_NIF_TERM const argv[]) {
|
|
return enif_make_int64(env,
|
|
crypto_aead_chacha20poly1305_ietf_MESSAGEBYTES_MAX);
|
|
}
|
|
|
|
ERL_NIF_TERM
|
|
enacl_crypto_aead_chacha20poly1305_encrypt(ErlNifEnv *env, int argc,
|
|
ERL_NIF_TERM const argv[]) {
|
|
ERL_NIF_TERM ret;
|
|
ErlNifBinary key, nonce, ad, message, ciphertext;
|
|
|
|
if (argc != 4)
|
|
goto bad_arg;
|
|
if (!enif_inspect_binary(env, argv[0], &key))
|
|
goto bad_arg;
|
|
if (!enif_inspect_binary(env, argv[1], &nonce))
|
|
goto bad_arg;
|
|
if (!enif_inspect_binary(env, argv[2], &ad))
|
|
goto bad_arg;
|
|
if (!enif_inspect_binary(env, argv[3], &message))
|
|
goto bad_arg;
|
|
if (key.size != crypto_aead_chacha20poly1305_ietf_KEYBYTES)
|
|
goto bad_arg;
|
|
if (nonce.size != crypto_aead_chacha20poly1305_ietf_NPUBBYTES)
|
|
goto bad_arg;
|
|
|
|
if (!enif_alloc_binary(message.size +
|
|
crypto_aead_chacha20poly1305_ietf_ABYTES,
|
|
&ciphertext)) {
|
|
ret = nacl_error_tuple(env, "alloc_failed");
|
|
goto done;
|
|
}
|
|
|
|
if (crypto_aead_chacha20poly1305_ietf_encrypt(
|
|
ciphertext.data, NULL, message.data, message.size, ad.data, ad.size,
|
|
NULL, nonce.data, key.data) < 0) {
|
|
ret = nacl_error_tuple(env, "aead_chacha20poly1305_ietf_encrypt_failed");
|
|
goto release;
|
|
}
|
|
|
|
ret = enif_make_binary(env, &ciphertext);
|
|
goto done;
|
|
|
|
bad_arg:
|
|
return enif_make_badarg(env);
|
|
release:
|
|
enif_release_binary(&ciphertext);
|
|
done:
|
|
return ret;
|
|
}
|
|
|
|
ERL_NIF_TERM
|
|
enacl_crypto_aead_chacha20poly1305_decrypt(ErlNifEnv *env, int argc,
|
|
ERL_NIF_TERM const argv[]) {
|
|
ERL_NIF_TERM ret;
|
|
ErlNifBinary key, nonce, ad, message, ciphertext;
|
|
|
|
if (argc != 4)
|
|
goto bad_arg;
|
|
if (!enif_inspect_binary(env, argv[0], &key))
|
|
goto bad_arg;
|
|
if (!enif_inspect_binary(env, argv[1], &nonce))
|
|
goto bad_arg;
|
|
if (!enif_inspect_binary(env, argv[2], &ad))
|
|
goto bad_arg;
|
|
if (!enif_inspect_binary(env, argv[3], &ciphertext))
|
|
goto bad_arg;
|
|
|
|
if (ciphertext.size < crypto_aead_chacha20poly1305_ietf_ABYTES)
|
|
goto bad_arg;
|
|
if (key.size != crypto_aead_chacha20poly1305_ietf_KEYBYTES)
|
|
goto bad_arg;
|
|
if (nonce.size != crypto_aead_chacha20poly1305_ietf_NPUBBYTES)
|
|
goto bad_arg;
|
|
|
|
if (!enif_alloc_binary(ciphertext.size -
|
|
crypto_aead_chacha20poly1305_ietf_ABYTES,
|
|
&message)) {
|
|
ret = nacl_error_tuple(env, "alloc_failed");
|
|
goto done;
|
|
}
|
|
|
|
if (crypto_aead_chacha20poly1305_ietf_decrypt(
|
|
message.data, NULL, NULL, ciphertext.data, ciphertext.size, ad.data,
|
|
ad.size, nonce.data, key.data) < 0) {
|
|
ret = nacl_error_tuple(env, "aead_chacha20poly1305_ietf_decrypt_failed");
|
|
goto release;
|
|
}
|
|
|
|
ret = enif_make_binary(env, &message);
|
|
goto done;
|
|
bad_arg:
|
|
return enif_make_badarg(env);
|
|
release:
|
|
enif_release_binary(&message);
|
|
done:
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* AEAD XChaCha20 Poly1305
|
|
*/
|
|
ERL_NIF_TERM
|
|
enacl_crypto_aead_xchacha20poly1305_KEYBYTES(ErlNifEnv *env, int argc,
|
|
ERL_NIF_TERM const argv[]) {
|
|
return enif_make_int64(env, crypto_aead_xchacha20poly1305_ietf_KEYBYTES);
|
|
}
|
|
|
|
ERL_NIF_TERM
|
|
enacl_crypto_aead_xchacha20poly1305_NPUBBYTES(ErlNifEnv *env, int argc,
|
|
ERL_NIF_TERM const argv[]) {
|
|
return enif_make_int64(env, crypto_aead_xchacha20poly1305_ietf_NPUBBYTES);
|
|
}
|
|
|
|
ERL_NIF_TERM
|
|
enacl_crypto_aead_xchacha20poly1305_ABYTES(ErlNifEnv *env, int argc,
|
|
ERL_NIF_TERM const argv[]) {
|
|
return enif_make_int64(env, crypto_aead_xchacha20poly1305_ietf_ABYTES);
|
|
}
|
|
|
|
ERL_NIF_TERM
|
|
enacl_crypto_aead_xchacha20poly1305_MESSAGEBYTES_MAX(
|
|
ErlNifEnv *env, int argc, ERL_NIF_TERM const argv[]) {
|
|
return enif_make_int64(env,
|
|
crypto_aead_xchacha20poly1305_ietf_MESSAGEBYTES_MAX);
|
|
}
|
|
|
|
ERL_NIF_TERM
|
|
enacl_crypto_aead_xchacha20poly1305_encrypt(ErlNifEnv *env, int argc,
|
|
ERL_NIF_TERM const argv[]) {
|
|
ErlNifBinary key, nonce, ad, message, ciphertext;
|
|
|
|
if ((argc != 4) || (!enif_inspect_binary(env, argv[0], &key)) ||
|
|
(!enif_inspect_binary(env, argv[1], &nonce)) ||
|
|
(!enif_inspect_binary(env, argv[2], &ad)) ||
|
|
(!enif_inspect_binary(env, argv[3], &message)) ||
|
|
(key.size != crypto_aead_xchacha20poly1305_ietf_KEYBYTES) ||
|
|
(nonce.size != crypto_aead_xchacha20poly1305_ietf_NPUBBYTES)) {
|
|
return enif_make_badarg(env);
|
|
}
|
|
|
|
if (!enif_alloc_binary(message.size +
|
|
crypto_aead_xchacha20poly1305_ietf_ABYTES,
|
|
&ciphertext)) {
|
|
return nacl_error_tuple(env, "alloc_failed");
|
|
}
|
|
|
|
if (crypto_aead_xchacha20poly1305_ietf_encrypt(
|
|
ciphertext.data, NULL, message.data, message.size, ad.data, ad.size,
|
|
NULL, nonce.data, key.data) < 0) {
|
|
return nacl_error_tuple(env, "aead_xchacha20poly1305_ietf_encrypt_failed");
|
|
}
|
|
|
|
return enif_make_binary(env, &ciphertext);
|
|
}
|
|
|
|
ERL_NIF_TERM
|
|
enacl_crypto_aead_xchacha20poly1305_decrypt(ErlNifEnv *env, int argc,
|
|
ERL_NIF_TERM const argv[]) {
|
|
ErlNifBinary key, nonce, ad, message, ciphertext;
|
|
|
|
if ((argc != 4) || (!enif_inspect_binary(env, argv[0], &key)) ||
|
|
(!enif_inspect_binary(env, argv[1], &nonce)) ||
|
|
(!enif_inspect_binary(env, argv[2], &ad)) ||
|
|
(!enif_inspect_binary(env, argv[3], &ciphertext)) ||
|
|
(ciphertext.size < crypto_aead_xchacha20poly1305_ietf_ABYTES) ||
|
|
(key.size != crypto_aead_xchacha20poly1305_ietf_KEYBYTES) ||
|
|
(nonce.size != crypto_aead_xchacha20poly1305_ietf_NPUBBYTES)) {
|
|
return enif_make_badarg(env);
|
|
}
|
|
|
|
if (!enif_alloc_binary(ciphertext.size -
|
|
crypto_aead_xchacha20poly1305_ietf_ABYTES,
|
|
&message)) {
|
|
return nacl_error_tuple(env, "alloc_failed");
|
|
}
|
|
|
|
if (crypto_aead_xchacha20poly1305_ietf_decrypt(
|
|
message.data, NULL, NULL, ciphertext.data, ciphertext.size, ad.data,
|
|
ad.size, nonce.data, key.data) < 0) {
|
|
return nacl_error_tuple(env, "aead_xchacha20poly1305_ietf_decrypt_failed");
|
|
}
|
|
|
|
return enif_make_binary(env, &message);
|
|
}
|