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Improve type specs

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This commit is contained in:
Hans Svensson
2019-01-28 15:05:21 +01:00
parent c06bbae07d
commit 7c7ad54a6a
8 changed files with 32 additions and 13 deletions
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src/enoise_crypto.erl
+5 -2
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@@ -55,7 +55,7 @@ hkdf(Hash, Key, Data) ->
[Output1, Output2, Output3].
-spec rekey(Cipher :: enoise_cipher_state:noise_cipher(),
Key :: binary()) -> binary().
Key :: binary()) -> binary() | {error, term()}.
rekey(Cipher, K) ->
encrypt(Cipher, K, ?MAX_NONCE, <<>>, <<0:(32*8)>>).
@@ -80,7 +80,10 @@ decrypt('AESGCM', K, N, Ad, CipherText0) ->
CTLen = byte_size(CipherText0) - ?MAC_LEN,
<<CipherText:CTLen/binary, MAC:?MAC_LEN/binary>> = CipherText0,
Nonce = <<0:32, N:64>>,
crypto:block_decrypt(aes_gcm, K, Nonce, {Ad, CipherText, MAC}).
case crypto:block_decrypt(aes_gcm, K, Nonce, {Ad, CipherText, MAC}) of
error -> {error, decrypt_failed};
Data -> Data
end.
-spec hash(Hash :: enoise_sym_state:noise_hash(), Data :: binary()) -> binary().