QPQ-AG/enacl
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Handle the ED25519 to Curve25519 conversion routines.

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Make sure these either execute on the Dirty Scheduler or execute with bumping
reductions.
This commit is contained in:
Jesper Louis Andersen 2015-08-29 22:08:34 +02:00
parent 2e5163a934
commit 2cad66ac2a
2 changed files with 9 additions and 5 deletions
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2
c_src/enacl_nif.c
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@ -1063,7 +1063,7 @@ static ErlNifFunc nif_funcs[] = {
{"crypto_verify_16", 2, enif_crypto_verify_16},
{"crypto_verify_32", 2, enif_crypto_verify_32},
{"crypto_curve25519_scalarmult", 2, enif_crypto_curve25519_scalarmult},
{"crypto_curve25519_scalarmult", 2, enif_crypto_curve25519_scalarmult, ERL_NIF_DIRTY_JOB_CPU_BOUND},
{"crypto_sign_ed25519_keypair", 0, enif_crypto_sign_ed25519_keypair, ERL_NIF_DIRTY_JOB_CPU_BOUND},
{"crypto_sign_ed25519_public_to_curve25519", 1, enif_crypto_sign_ed25519_public_to_curve25519},

12
src/enacl.erl
View File

@ -112,8 +112,8 @@
-define(AUTH_REDUCTIONS, 17 * 2).
-define(ONETIME_AUTH_SIZE, 16 * 1024).
-define(ONETIME_AUTH_REDUCTIONS, 16 * 2).
-define(RANDOMBYTES_SIZE, 1024).
-define(RANDOMBYTES_REDUCTIONS, 4 * 2).
-define(ED25519_PUBLIC_TO_CURVE_REDS, 20 * 2).
-define(ED25519_SECRET_TO_CURVE_REDS, 20 * 2).
%% Constants used throughout the code base
-define(CRYPTO_BOX_ZEROBYTES, 32).
@ -686,14 +686,18 @@ crypto_sign_ed25519_keypair() ->
%% @end
-spec crypto_sign_ed25519_public_to_curve25519(PublicKey :: binary()) -> binary().
crypto_sign_ed25519_public_to_curve25519(PublicKey) ->
enacl_nif:crypto_sign_ed25519_public_to_curve25519(PublicKey).
R = enacl_nif:crypto_sign_ed25519_public_to_curve25519(PublicKey),
erlang:bump_reductions(?ED25519_PUBLIC_TO_CURVE_REDS),
R.
%% @doc crypto_sign_ed25519_secret_to_curve25519/1 converts a given Ed 25519 secret
%% key to a Curve 25519 secret key.
%% @end
-spec crypto_sign_ed25519_secret_to_curve25519(SecretKey :: binary()) -> binary().
crypto_sign_ed25519_secret_to_curve25519(SecretKey) ->
enacl_nif:crypto_sign_ed25519_secret_to_curve25519(SecretKey).
R = enacl_nif:crypto_sign_ed25519_secret_to_curve25519(SecretKey),
erlang:bump_reductions(?ED25519_SECRET_TO_CURVE_REDS),
R.
-spec crypto_sign_ed25519_public_size() -> pos_integer().
crypto_sign_ed25519_public_size() ->