crypto: Add SipHash MAC support#11242
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Add the siphash and siphash128 MAC types, available through the
crypto:mac/3,4, crypto:macN/4,5 and the streaming crypto:mac_init/2,3
functions:
siphash - SipHash-2-4, 64-bit MAC
siphash128 - SipHash-2-4, 128-bit MAC
SipHash is a fast keyed MAC widely used for hash-table keying and for
authenticating short messages. Both variants take a 16 byte key and go
through the cryptolib EVP_MAC interface, like the other MACs.
The output size is selected with the EVP_MAC "size" parameter. As
siphash128 is not a truncation of siphash (they differ in finalization),
the two are exposed as separate algorithms rather than derived from each
other with macN.
Requires OpenSSL 3.0.
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CT Test Results 2 files 14 suites 5m 5s ⏱️ Results for commit f504609. ♻️ This comment has been updated with latest results. To speed up review, make sure that you have read Contributing to Erlang/OTP and that all checks pass. See the TESTING and DEVELOPMENT HowTo guides for details about how to run test locally. Artifacts// Erlang/OTP Github Action Bot |
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Summary
Adds SipHash as a MAC in the
cryptoapplication, exposed through the existingMAC API (
crypto:mac/3,4,crypto:macN/4,5, and the streamingcrypto:mac_init/2,3+mac_update/2+mac_final/1).Two algorithm atoms are added, following crypto's size-in-the-name convention
and the SipHash reference implementation's own naming:
siphashsiphash128Design
EVP_MACinterface, like the otherMACs.
poly1305is the closest analog: a key-only MAC with noSubType.EVP_MAC"size"parameter.siphash128isnot a truncation of
siphash(they differ in finalization), so the two areexposed as separate algorithms rather than derived from each other with
macN.crypto:supports(macs)and returnnotsup.Testing
New
crypto_SUITEgroupssiphashandsiphash128check one-shot andstreaming computation against the SipHash-2-4 reference vectors, with FIPS
negative groups. The existing MACs are unaffected, and
Build and check Erlang/OTPpasses.