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mbedtls: Update to upstream version 2.28.2

This commit is contained in:
Rémi Verschelde
2022-12-21 12:05:54 +01:00
parent 63f95c0e58
commit 6e65244b6b
83 changed files with 672 additions and 726 deletions

View File

@@ -182,6 +182,20 @@
#endif /* !MBEDTLS_NO_UDBL_DIVISION */
#endif /* !MBEDTLS_HAVE_INT64 */
/** \typedef mbedtls_mpi_uint
* \brief The type of machine digits in a bignum, called _limbs_.
*
* This is always an unsigned integer type with no padding bits. The size
* is platform-dependent.
*/
/** \typedef mbedtls_mpi_sint
* \brief The signed type corresponding to #mbedtls_mpi_uint.
*
* This is always a signed integer type with no padding bits. The size
* is platform-dependent.
*/
#ifdef __cplusplus
extern "C" {
#endif
@@ -191,9 +205,27 @@ extern "C" {
*/
typedef struct mbedtls_mpi
{
int s; /*!< Sign: -1 if the mpi is negative, 1 otherwise */
size_t n; /*!< total # of limbs */
mbedtls_mpi_uint *p; /*!< pointer to limbs */
/** Sign: -1 if the mpi is negative, 1 otherwise.
*
* The number 0 must be represented with `s = +1`. Although many library
* functions treat all-limbs-zero as equivalent to a valid representation
* of 0 regardless of the sign bit, there are exceptions, so bignum
* functions and external callers must always set \c s to +1 for the
* number zero.
*
* Note that this implies that calloc() or `... = {0}` does not create
* a valid MPI representation. You must call mbedtls_mpi_init().
*/
int s;
/** Total number of limbs in \c p. */
size_t n;
/** Pointer to limbs.
*
* This may be \c NULL if \c n is 0.
*/
mbedtls_mpi_uint *p;
}
mbedtls_mpi;
@@ -280,7 +312,7 @@ void mbedtls_mpi_swap( mbedtls_mpi *X, mbedtls_mpi *Y );
* \param Y The MPI to be assigned from. This must point to an
* initialized MPI.
* \param assign The condition deciding whether to perform the
* assignment or not. Possible values:
* assignment or not. Must be either 0 or 1:
* * \c 1: Perform the assignment `X = Y`.
* * \c 0: Keep the original value of \p X.
*
@@ -291,6 +323,10 @@ void mbedtls_mpi_swap( mbedtls_mpi *X, mbedtls_mpi *Y );
* information through branch prediction and/or memory access
* patterns analysis).
*
* \warning If \p assign is neither 0 nor 1, the result of this function
* is indeterminate, and the resulting value in \p X might be
* neither its original value nor the value in \p Y.
*
* \return \c 0 if successful.
* \return #MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed.
* \return Another negative error code on other kinds of failure.
@@ -303,24 +339,28 @@ int mbedtls_mpi_safe_cond_assign( mbedtls_mpi *X, const mbedtls_mpi *Y, unsigned
*
* \param X The first MPI. This must be initialized.
* \param Y The second MPI. This must be initialized.
* \param assign The condition deciding whether to perform
* the swap or not. Possible values:
* \param swap The condition deciding whether to perform
* the swap or not. Must be either 0 or 1:
* * \c 1: Swap the values of \p X and \p Y.
* * \c 0: Keep the original values of \p X and \p Y.
*
* \note This function is equivalent to
* if( assign ) mbedtls_mpi_swap( X, Y );
* if( swap ) mbedtls_mpi_swap( X, Y );
* except that it avoids leaking any information about whether
* the assignment was done or not (the above code may leak
* the swap was done or not (the above code may leak
* information through branch prediction and/or memory access
* patterns analysis).
*
* \warning If \p swap is neither 0 nor 1, the result of this function
* is indeterminate, and both \p X and \p Y might end up with
* values different to either of the original ones.
*
* \return \c 0 if successful.
* \return #MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed.
* \return Another negative error code on other kinds of failure.
*
*/
int mbedtls_mpi_safe_cond_swap( mbedtls_mpi *X, mbedtls_mpi *Y, unsigned char assign );
int mbedtls_mpi_safe_cond_swap( mbedtls_mpi *X, mbedtls_mpi *Y, unsigned char swap );
/**
* \brief Store integer value in MPI.
@@ -753,11 +793,11 @@ int mbedtls_mpi_mul_int( mbedtls_mpi *X, const mbedtls_mpi *A,
*
* \param Q The destination MPI for the quotient.
* This may be \c NULL if the value of the
* quotient is not needed.
* quotient is not needed. This must not alias A or B.
* \param R The destination MPI for the remainder value.
* This may be \c NULL if the value of the
* remainder is not needed.
* \param A The dividend. This must point to an initialized MPi.
* remainder is not needed. This must not alias A or B.
* \param A The dividend. This must point to an initialized MPI.
* \param B The divisor. This must point to an initialized MPI.
*
* \return \c 0 if successful.
@@ -774,10 +814,10 @@ int mbedtls_mpi_div_mpi( mbedtls_mpi *Q, mbedtls_mpi *R, const mbedtls_mpi *A,
*
* \param Q The destination MPI for the quotient.
* This may be \c NULL if the value of the
* quotient is not needed.
* quotient is not needed. This must not alias A.
* \param R The destination MPI for the remainder value.
* This may be \c NULL if the value of the
* remainder is not needed.
* remainder is not needed. This must not alias A.
* \param A The dividend. This must point to an initialized MPi.
* \param b The divisor.
*
@@ -832,6 +872,7 @@ int mbedtls_mpi_mod_int( mbedtls_mpi_uint *r, const mbedtls_mpi *A,
* \brief Perform a sliding-window exponentiation: X = A^E mod N
*
* \param X The destination MPI. This must point to an initialized MPI.
* This must not alias E or N.
* \param A The base of the exponentiation.
* This must point to an initialized MPI.
* \param E The exponent MPI. This must point to an initialized MPI.