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Correct the aliasing requirements in doc for mbedtls_mpi_core_montmul(), and test them

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Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
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Tom Cosgrove
2022-09-29 14:40:21 +01:00
parent 119eae2e51
commit 4386ead662
3 changed files with 24 additions and 10 deletions
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library/bignum_core.c
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@ -439,7 +439,7 @@ void mbedtls_mpi_core_montmul( mbedtls_mpi_uint *X,
* So the correct return value is already in X if (carry ^ borrow) = 0,
* but is in (the lower AN_limbs limbs of) T if (carry ^ borrow) = 1.
*/
mbedtls_ct_mpi_uint_cond_assign( AN_limbs, X, T, (unsigned char) ( carry ^ borrow ) );
mbedtls_ct_mpi_uint_cond_assign( AN_limbs, X, T, (unsigned char) ( carry ^ borrow ) );
}
#endif /* MBEDTLS_BIGNUM_C */