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type check for length argument in crypto_data_hkdf/4

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Reported by @notoria in #527.
This commit is contained in:
Markus Triska
2020-05-18 11:12:59 +02:00
parent 95ca8a2630
commit 70ad44adfd
1 changed files with 2 additions and 0 deletions
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src/prolog/lib/crypto.pl
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@@ -250,6 +250,8 @@ hash_algorithm(sha512_256).
crypto_data_hkdf(Data0, L, Bytes, Options0) :- crypto_data_hkdf(Data0, L, Bytes, Options0) :-
functor_hash_options(algorithm, Algorithm, Options0, Options), functor_hash_options(algorithm, Algorithm, Options0, Options),
must_be(integer, L),
L >= 0,
option(encoding(Encoding), Options, utf8), option(encoding(Encoding), Options, utf8),
encoding_bytes(Encoding, Data0, Data), encoding_bytes(Encoding, Data0, Data),
option(salt(SaltBytes), Options, []), option(salt(SaltBytes), Options, []),