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Add mbedtls_ecdh_can_do

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All curves can currently do ECDH, but to make the API symmetric and
future-proof, add mbedtls_ecdh_can_do() to go with mbedtls_ecdsa_can_do().
This commit is contained in:
Gilles Peskine 2019-02-11 18:41:27 +01:00 • committed by Janos Follath
parent 1fdf2c2d1c
commit 20b3ef3cad
3 changed files with 25 additions and 0 deletions
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7
library/ecdh.c
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@ -63,6 +63,13 @@ static mbedtls_ecp_group_id mbedtls_ecdh_grp_id(
#endif
}
int mbedtls_ecdh_can_do( mbedtls_ecp_group_id gid )
{
/* At this time, all groups support ECDH. */
(void) gid;
return 1;
}
#if !defined(MBEDTLS_ECDH_GEN_PUBLIC_ALT)
/*
* Generate public key (restartable version)