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Check that 1 < D, E < N in mbedtls_rsa_validate_params

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This commit is contained in:
Hanno Becker 2017-10-02 13:01:43 +01:00
parent c6fc878eda
commit b5beaa8995
2 changed files with 26 additions and 11 deletions
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11
include/mbedtls/rsa.h
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@ -174,12 +174,13 @@ int mbedtls_rsa_deduce_crt( const mbedtls_mpi *P, const mbedtls_mpi *Q,
* \param p_rng PRNG context for f_rng, or NULL
*
* \return
* - 0 if the following conditions are satisfied:
* - N = PQ if N,P,Q != NULL
* - 0 if the following conditions are satisfied
* if all relevant parameters are provided:
* - P prime if f_rng != NULL
* - Q prime if f_rng != NULL
* - 1 < N = PQ
* - 1 < D, E < N
* - D and E are modular inverses modulo P-1 and Q-1
* if D,E,P,Q != NULL
* - P prime if f_rng, P != NULL
* - Q prime if f_rng, Q != NULL
* - A non-zero error code otherwise.
*
* \note The function can be used with a restricted set of arguments