Note that (as usual) for mbedtls_mpi_mod_inv() residues must be associated with the modulus
Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
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@ -196,6 +196,9 @@ int mbedtls_mpi_mod_sub( mbedtls_mpi_mod_residue *X,
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/**
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* \brief Perform modular inversion of an MPI with respect to a modulus \p N.
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*
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* \p A and \p X must be associated with the modulus \p N and will therefore
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* have the same number of limbs as \p N.
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*
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* \p X may be aliased to \p A.
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*
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* \warning Currently only supports prime moduli, but does not check for them.
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