[PATCH v4 5/8] crypto: testmgr - support test with different ciphertext per encryption
From: Tianjia Zhang <hidden>
Date: 2020-07-08 08:28:31
Also in:
keyrings, linux-arm-kernel, linux-crypto, linux-integrity, lkml
Subsystem:
crypto api, the rest · Maintainers:
Herbert Xu, "David S. Miller", Linus Torvalds
Some asymmetric algorithms will get different ciphertext after each encryption, such as SM2, and let testmgr support the testing of such algorithms. In struct akcipher_testvec, set c and c_size to be empty, skip the comparison of the ciphertext, and compare the decrypted plaintext with m to achieve the test purpose. Signed-off-by: Tianjia Zhang <redacted> --- crypto/testmgr.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index 6863f911fcee..0dc94461c437 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c@@ -4025,7 +4025,7 @@ static int test_akcipher_one(struct crypto_akcipher *tfm, pr_err("alg: akcipher: %s test failed. err %d\n", op, err); goto free_all; } - if (!vecs->siggen_sigver_test) { + if (!vecs->siggen_sigver_test && c) { if (req->dst_len != c_size) { pr_err("alg: akcipher: %s test failed. Invalid output len\n", op);
@@ -4056,6 +4056,11 @@ static int test_akcipher_one(struct crypto_akcipher *tfm, goto free_all; } + if (!vecs->siggen_sigver_test && !c) { + c = outbuf_enc; + c_size = req->dst_len; + } + op = vecs->siggen_sigver_test ? "sign" : "decrypt"; if (WARN_ON(c_size > PAGE_SIZE)) goto free_all;
--
2.17.1