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auth, pki: Calculate hash internally when signing/verifying

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This makes pki_do_sign() and pki_signature_verify() to receive the
original input instead of the pre-calculated hash.  The hash is then
calculated internally.

The hash to be used inside the signature is decided earlier, when all
the information about the signature to be generated/verified is
available.

Simplify ssh_pki_do_sign() and ssh_srv_pki_do_sign_sessionid().

The tests were modified to use pki_do_sign() instead of
pki_do_sign_hash().

Signed-off-by: Anderson Toshiyuki Sasaki <ansasaki@redhat.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
This commit is contained in:
Anderson Toshiyuki Sasaki
2019-04-29 16:29:16 +02:00
committed by Andreas Schneider
parent 58b3b2696c
commit 76f9808eb2
13 changed files with 264 additions and 277 deletions
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4
tests/unittests/torture_pki_ed25519.c
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@@ -349,7 +349,7 @@ static void torture_pki_ed25519_generate_key(void **state)
rc = ssh_pki_generate(SSH_KEYTYPE_ED25519, 256, &key);
assert_true(rc == SSH_OK);
assert_non_null(key);
sign = pki_do_sign(key, HASH, 20);
sign = pki_do_sign(key, HASH, 20, SSH_DIGEST_AUTO);
assert_non_null(sign);
rc = pki_signature_verify(session,sign,key,HASH,20);
assert_true(rc == SSH_OK);
@@ -389,7 +389,7 @@ static void torture_pki_ed25519_cert_verify(void **state)
assert_true(rc == 0);
assert_non_null(cert);
sign = pki_do_sign(privkey, HASH, 20);
sign = pki_do_sign(privkey, HASH, 20, SSH_DIGEST_AUTO);
assert_non_null(sign);
rc = pki_signature_verify(session, sign, cert, HASH, 20);
assert_true(rc == SSH_OK);