tree 04409b6d741274c8eb92ad84ff7c544d16d85a2b
parent 321adb297c1c19be2d2120658cd43929e5f3faa4
author Gilles Peskine <Gilles.Peskine@arm.com> 1570728072 +0200
committer Gilles Peskine <Gilles.Peskine@arm.com> 1570728072 +0200

ASN1 tests: Match negative INTEGERs with the actual library behavior

mbedtls_asn1_get_int() and mbedtls_asn1_get_mpi() behave differently
on negative INTEGERs (0200). Don't change the library behavior for now
because this might break interoperability in some applications. Change
the test function to the library behavior.

Fix the test data with negative INTEGERs. These test cases were
previously not run (they were introduced but deliberately deactivated
in 27d806fab41a11441d97017158fcb1356ef7e74f). The test data was
actually wrong: ASN.1 uses two's complement, which has no negative 0,
and some encodings were wrong. Now the tests have correct data, and
the test code rectifies the expected data to match the library
behavior.