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ikev2: Try all RSA signature schemes if none is configured

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This commit is contained in:
Tobias Brunner 2015-03-03 19:32:35 +01:00
parent 1d94b7950b
commit 4e6f102842
1 changed files with 19 additions and 4 deletions
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23
src/libcharon/sa/ikev2/authenticators/pubkey_authenticator.c
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@ -159,11 +159,26 @@ static signature_scheme_t select_signature_scheme(keymat_v2_t *keymat,
} }
enumerator->destroy(enumerator); enumerator->destroy(enumerator);
/* default to the scheme we'd use with classic authentication */ /* for RSA we tried at least SHA-512, also try other schemes down to
if (selected == SIGN_UNKNOWN && key_type == KEY_RSA && * what we'd use with classic authentication */
keymat->hash_algorithm_supported(keymat, HASH_SHA1)) if (selected == SIGN_UNKNOWN && key_type == KEY_RSA)
{ {
selected = SIGN_RSA_EMSA_PKCS1_SHA1; signature_scheme_t schemes[] = {
SIGN_RSA_EMSA_PKCS1_SHA384,
SIGN_RSA_EMSA_PKCS1_SHA256,
SIGN_RSA_EMSA_PKCS1_SHA1,
};
int i;
for (i = 0; i < countof(schemes); i++)
{
if (keymat->hash_algorithm_supported(keymat,
hasher_from_signature_scheme(schemes[i])))
{
selected = scheme;
break;
}
}
} }
} }
return selected; return selected;