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Change signature of mbedtls_rsa_deduce_private

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Make input arguments constant and adapt the implementation to use a temporary instead of in-place operations.
This commit is contained in:
Hanno Becker 2017-10-02 09:57:50 +01:00
parent ba5b755f1a
commit bdefff1dde
3 changed files with 19 additions and 26 deletions
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13
include/mbedtls/rsa.h
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@ -122,18 +122,11 @@ int mbedtls_rsa_deduce_moduli( mbedtls_mpi const *N, mbedtls_mpi const *D,
* \return
* - 0 if successful. In this case, D is set to a simultaneous
* modular inverse of E modulo both P-1 and Q-1.
* - A non-zero error code otherwise. In this case, the values
* of P, Q, E are undefined.
* - A non-zero error code otherwise.
*
* \note The input MPI's are deliberately not declared as constant
* and may therefore be used for in-place calculations by
* the implementation. In particular, their values can be
* corrupted when the function fails. If the user cannot
* tolerate this, he has to make copies of the MPI's prior
* to calling this function. See \c mbedtls_mpi_copy for this.
*/
int mbedtls_rsa_deduce_private( mbedtls_mpi *P, mbedtls_mpi *Q, mbedtls_mpi *E,
mbedtls_mpi *D );
int mbedtls_rsa_deduce_private( mbedtls_mpi const *P, mbedtls_mpi const *Q,
mbedtls_mpi const *E, mbedtls_mpi *D );
/**