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Merge pull request #184 from hanno-arm/ecp_restartable_offset

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Fix fragile method for passing from ECDSA to ECP restart contexts
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Gilles Peskine 2019-08-14 15:40:08 +02:00 committed by GitHub
parent 317f940304 80bb77e16d
commit 0ed1df6206
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1 changed files with 2 additions and 2 deletions
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library/ecdsa.c
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@ -172,11 +172,11 @@ static void ecdsa_restart_det_free( mbedtls_ecdsa_restart_det_ctx *ctx )
}
#endif /* MBEDTLS_ECDSA_DETERMINISTIC */
#define ECDSA_RS_ECP &rs_ctx->ecp
#define ECDSA_RS_ECP ( rs_ctx == NULL ? NULL : &rs_ctx->ecp )
/* Utility macro for checking and updating ops budget */
#define ECDSA_BUDGET( ops ) \
MBEDTLS_MPI_CHK( mbedtls_ecp_check_budget( grp, &rs_ctx->ecp, ops ) );
MBEDTLS_MPI_CHK( mbedtls_ecp_check_budget( grp, ECDSA_RS_ECP, ops ) );
/* Call this when entering a function that needs its own sub-context */
#define ECDSA_RS_ENTER( SUB ) do { \