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-rw-r--r--lib/crypto/src/crypto.erl22
1 files changed, 19 insertions, 3 deletions
diff --git a/lib/crypto/src/crypto.erl b/lib/crypto/src/crypto.erl
index 3774f936e7..443e7fc12a 100644
--- a/lib/crypto/src/crypto.erl
+++ b/lib/crypto/src/crypto.erl
@@ -313,7 +313,10 @@ next_iv(Type, Data, _Ivec) ->
next_iv(Type, Data).
stream_init(aes_ctr, Key, Ivec) ->
- {aes_ctr, aes_ctr_stream_init(Key, Ivec)}.
+ {aes_ctr, aes_ctr_stream_init(Key, Ivec)};
+stream_init(chacha20, Key, Ivec) ->
+ {chacha20, chacha20_stream_init(Key,Ivec)}.
+
stream_init(rc4, Key) ->
{rc4, notsup_to_error(rc4_set_key(Key))}.
@@ -1124,14 +1127,20 @@ do_stream_encrypt({aes_ctr, State0}, Data) ->
{{aes_ctr, State}, Cipher};
do_stream_encrypt({rc4, State0}, Data) ->
{State, Cipher} = rc4_encrypt_with_state(State0, Data),
- {{rc4, State}, Cipher}.
+ {{rc4, State}, Cipher};
+do_stream_encrypt({chacha20, State0}, Data) ->
+ {State, Cipher} = chacha20_stream_encrypt(State0, Data),
+ {{chacha20, State}, Cipher}.
do_stream_decrypt({aes_ctr, State0}, Data) ->
{State, Text} = aes_ctr_stream_decrypt(State0, Data),
{{aes_ctr, State}, Text};
do_stream_decrypt({rc4, State0}, Data) ->
{State, Text} = rc4_encrypt_with_state(State0, Data),
- {{rc4, State}, Text}.
+ {{rc4, State}, Text};
+do_stream_decrypt({chacha20, State0}, Data) ->
+ {State, Cipher} = chacha20_stream_decrypt(State0, Data),
+ {{chacha20, State}, Cipher}.
%%
@@ -1155,6 +1164,13 @@ aes_ctr_stream_decrypt(_State, _Cipher) -> ?nif_stub.
rc4_set_key(_Key) -> ?nif_stub.
rc4_encrypt_with_state(_State, _Data) -> ?nif_stub.
+%%
+%% CHACHA20 - stream cipher
+%%
+chacha20_stream_init(_Key, _IVec) -> ?nif_stub.
+chacha20_stream_encrypt(_State, _Data) -> ?nif_stub.
+chacha20_stream_decrypt(_State, _Data) -> ?nif_stub.
+
%% Secure remote password -------------------------------------------------------------------
user_srp_gen_key(Private, Generator, Prime) ->