linux-kernel - [PATCH] crypto: testmgr - fix initialization of 'secret

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Date:   Mon, 10 May 2021 16:54:08 +0800
From:   Hui Tang <tanghui20@...wei.com>
To:     <herbert@...dor.apana.org.au>, <davem@...emloft.net>
CC:     <linux-crypto@...r.kernel.org>, <xuzaibo@...wei.com>,
        <wangzhou1@...ilicon.com>, <linux-kernel@...r.kernel.org>
Subject: [PATCH] crypto: testmgr - fix initialization of 'secret_size'

Actual data length of the 'secret' is not equal to the 'secret_size'.

Since the 'curve_id' has removed in the 'secret', the 'secret_size'
should subtract the length of the 'curve_id'.

Fixes: 6763f5ea2d9a(crypto: ecdh - move curve_id of ECDH from ...)

Signed-off-by: Hui Tang <tanghui20@...wei.com>
---
 crypto/testmgr.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/crypto/testmgr.h b/crypto/testmgr.h
index 34e4a3d..aead75d 100644
--- a/crypto/testmgr.h
+++ b/crypto/testmgr.h
@@ -2719,7 +2719,7 @@ static const struct kpp_testvec ecdh_p192_tv_template[] = {
 	"\xf4\x57\xcc\x4f\x1f\x4e\x31\xcc"
 	"\xe3\x40\x60\xc8\x06\x93\xc6\x2e"
 	"\x99\x80\x81\x28\xaf\xc5\x51\x74",
-	.secret_size = 32,
+	.secret_size = 30,
 	.b_public_size = 48,
 	.expected_a_public_size = 48,
 	.expected_ss_size = 24
@@ -2766,7 +2766,7 @@ static const struct kpp_testvec ecdh_p256_tv_template[] = {
 	"\x9f\x4a\x38\xcc\xc0\x2c\x49\x2f"
 	"\xb1\x32\xbb\xaf\x22\x61\xda\xcb"
 	"\x6f\xdb\xa9\xaa\xfc\x77\x81\xf3",
-	.secret_size = 40,
+	.secret_size = 38,
 	.b_public_size = 64,
 	.expected_a_public_size = 64,
 	.expected_ss_size = 32
@@ -2804,8 +2804,8 @@ static const struct kpp_testvec ecdh_p256_tv_template[] = {
 	"\x37\x08\xcc\x40\x5e\x7a\xfd\x6a"
 	"\x6a\x02\x6e\x41\x87\x68\x38\x77"
 	"\xfa\xa9\x44\x43\x2d\xef\x09\xdf",
-	.secret_size = 8,
-	.b_secret_size = 40,
+	.secret_size = 6,
+	.b_secret_size = 38,
 	.b_public_size = 64,
 	.expected_a_public_size = 64,
 	.expected_ss_size = 32,
--
2.8.1