linux-kernel - [PATCH v2 7/7] crypto: add eddsa test vector

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Message-Id: <1622123615-15517-8-git-send-email-herbert.tencent@gmail.com>
Date:   Thu, 27 May 2021 21:53:35 +0800
From:   Hongbo Li <herbert.tencent@...il.com>
To:     keyrings@...r.kernel.org, linux-crypto@...r.kernel.org,
        herbert@...dor.apana.org.au, ebiggers@...nel.org,
        dhowells@...hat.com, jarkko@...nel.org,
        tianjia.zhang@...ux.alibaba.com, herberthbli@...cent.com
Cc:     linux-kernel@...r.kernel.org, linux-integrity@...r.kernel.org
Subject: [PATCH v2 7/7] crypto: add eddsa test vector

From: Hongbo Li <herberthbli@...cent.com>

This patch adds the test vector for ed25519.
The test vector is from RFC8032 section 7.1 [1]

[1]https://datatracker.ietf.org/doc/html/rfc8032#section-7.1

Signed-off-by: Hongbo Li <herberthbli@...cent.com>
---
 crypto/testmgr.c |  6 ++++++
 crypto/testmgr.h | 32 ++++++++++++++++++++++++++++++++
 2 files changed, 38 insertions(+)

diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index 10c5b3b01ec4..498d1866ef77 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -4938,6 +4938,12 @@ static const struct alg_test_desc alg_test_descs[] = {
 		.suite = {
 			.akcipher = __VECS(ecrdsa_tv_template)
 		}
+	}, {
+		.alg = "eddsa-25519",
+		.test = alg_test_akcipher,
+		.suite = {
+			.akcipher = __VECS(eddsa_25519_tv_template)
+		}
 	}, {
 		.alg = "essiv(authenc(hmac(sha256),cbc(aes)),sha256)",
 		.test = alg_test_aead,
diff --git a/crypto/testmgr.h b/crypto/testmgr.h
index 34e4a3db3991..11807a308ef9 100644
--- a/crypto/testmgr.h
+++ b/crypto/testmgr.h
@@ -1144,6 +1144,38 @@ static const struct akcipher_testvec ecrdsa_tv_template[] = {
 	},
 };
 
+/*
+ * EDDSA test vectors.
+ * From RFC8032 section 7.1
+ */
+static const struct akcipher_testvec eddsa_25519_tv_template[] = {
+	{
+	.key =
+	"\x3d\x40\x17\xc3\xe8\x43\x89\x5a\x92\xb7\x0a\xa7\x4d\x1b\x7e\xbc"
+	"\x9c\x98\x2c\xcf\x2e\xc4\x96\x8c\xc0\xcd\x55\xf1\x2a\xf4\x66\x0c",
+	.key_len = 32,
+	/*
+	 * RFC8032 section 5.1.7. m is SHA512(dom2(F, C) || R || A || PH(M))
+	 * M is 0x72
+	 */
+	.m =
+	"\xa2\x71\xdf\x0d\x2b\x0d\x03\xbd\x17\xb4\xed\x9a\x4b\x6a\xfd\xdf"
+	"\x2e\x73\x28\x7f\xd6\x30\xf1\xa1\x37\xd8\x7c\xe8\x73\xa5\x91\xcc"
+	"\x31\xb6\xdd\x85\x2a\x98\xb5\xdd\x12\x26\xfe\x99\x3d\x82\x28\x27"
+	"\x8c\xeb\xa2\x1f\x80\xb8\xfc\x95\x98\x6a\x70\xd7\x1e\xdf\x3f\xaf",
+	.m_size = 64,
+	.c =
+	"\x92\xa0\x09\xa9\xf0\xd4\xca\xb8\x72\x0e\x82\x0b\x5f\x64\x25\x40"
+	"\xa2\xb2\x7b\x54\x16\x50\x3f\x8f\xb3\x76\x22\x23\xeb\xdb\x69\xda"
+	"\x08\x5a\xc1\xe4\x3e\x15\x99\x6e\x45\x8f\x36\x13\xd0\xf1\x1d\x8c"
+	"\x38\x7b\x2e\xae\xb4\x30\x2a\xee\xb0\x0d\x29\x16\x12\xbb\x0c\x00",
+	.c_size = 64,
+	.algo = OID_ed25519,
+	.public_key_vec = true,
+	.siggen_sigver_test = true,
+	}
+};
+
 /*
  * PKCS#1 RSA test vectors. Obtained from CAVS testing.
  */
-- 
2.27.0