QPQ-AG/enacl
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Provide a way to get at the typical constants for the public key box.

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This commit is contained in:
Jesper Louis Andersen 2014-11-18 23:35:59 +01:00
parent bb9179f401
commit 3365b3e5af
1 changed files with 23 additions and 0 deletions
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23
c_src/enacl_nif.c
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@ -2,11 +2,14 @@
#include <sodium.h>
/* Errors */
static
ERL_NIF_TERM nacl_error_tuple(ErlNifEnv *env, char *error_atom) {
return enif_make_tuple2(env, enif_make_atom(env, "error"), enif_make_atom(env, error_atom));
}
/* Helper functions (Hashing, String Equality, ...) */
static
ERL_NIF_TERM enif_crypto_hash(ErlNifEnv *env, int argc, ERL_NIF_TERM const argv[]) {
ErlNifBinary input;
@ -25,6 +28,22 @@ ERL_NIF_TERM enif_crypto_hash(ErlNifEnv *env, int argc, ERL_NIF_TERM const argv[
return enif_make_binary(env, &result);
}
/* Public-key cryptography */
static
ERL_NIF_TERM enif_crypto_box_NONCEBYTES(ErlNifEnv *env, int argc, ERL_NIF_TERM const argv[]) {
return enif_make_int64(env, crypto_box_NONCEBYTES);
}
static
ERL_NIF_TERM enif_crypto_box_ZEROBYTES(ErlNifEnv *env, int argc, ERL_NIF_TERM const argv[]) {
return enif_make_int64(env, crypto_box_ZEROBYTES);
}
static
ERL_NIF_TERM enif_crypto_box_BOXZEROBYTES(ErlNifEnv *env, int argc, ERL_NIF_TERM const argv[]) {
return enif_make_int64(env, crypto_box_BOXZEROBYTES);
}
static
ERL_NIF_TERM enif_crypto_box_keypair(ErlNifEnv *env, int argc, ERL_NIF_TERM const argv[]) {
ErlNifBinary pk, sk;
@ -46,7 +65,11 @@ ERL_NIF_TERM enif_crypto_box_keypair(ErlNifEnv *env, int argc, ERL_NIF_TERM cons
return enif_make_tuple3(env, enif_make_atom(env, "ok"), enif_make_binary(env, &pk), enif_make_binary(env, &sk));
}
/* Tie the knot to the Erlang world */
static ErlNifFunc nif_funcs[] = {
{"crypto_box_NONCEBYTES", 0, enif_crypto_box_NONCEBYTES},
{"crypto_box_ZEROBYTES", 0, enif_crypto_box_ZEROBYTES},
{"crypto_box_BOXZEROBYTES", 0, enif_crypto_box_BOXZEROBYTES},
{"crypto_box_keypair", 0, enif_crypto_box_keypair},
{"crypto_hash", 1, enif_crypto_hash, ERL_NIF_DIRTY_JOB_CPU_BOUND}
};