[PATCH 3/3] add nist_p384 register and unregister to support nist_p384

[Saulo Alessandre <saulo.alessandre@gmail.com>]

From: Saulo Alessandre <saulo.alessandre@tse.jus.br>

* crypto/ecdsa.c
  - add ecdsa_nist_p384_init_tfm
  - register and unregister p384 tfm

* crypto/testmgr.c
  - add test vector for p384 on vector of tests

* crypto/testmgr.h
  - add test vector params for p384(sha1, sha224, sha256, sha384 and sha512)
---
 crypto/asymmetric_keys/x509_cert_parser.c |   2 +-
 crypto/ecc.c                              |   2 +-
 crypto/ecc.h                              |   2 +-
 crypto/ecdsa.c                            |  46 +++++--
 crypto/testmgr.c                          |   6 +
 crypto/testmgr.h                          | 157 ++++++++++++++++++++++
 6 files changed, 204 insertions(+), 11 deletions(-)

diff --git a/crypto/asymmetric_keys/x509_cert_parser.c b/crypto/asymmetric_keys/x509_cert_parser.c
index 03535bd8b8ef..1d94c23e9678 100644
--- a/crypto/asymmetric_keys/x509_cert_parser.c
+++ b/crypto/asymmetric_keys/x509_cert_parser.c
@@ -278,7 +278,7 @@ int x509_note_pkey_algo(void *context, size_t hdrlen,
 ecdsa:
 	ctx->cert->sig->pkey_algo = "ecdsa";
 	ctx->cert->sig->encoding = "x962";
-        pr_info("Found stephan %s(%s) X509 certificate\n", ctx->cert->sig->pkey_algo,
+	pr_info("Found %s(%s) X509 certificate\n", ctx->cert->sig->pkey_algo,
 		ctx->cert->sig->hash_algo);
 	ctx->algo_oid = ctx->last_oid;
 	return 0;
diff --git a/crypto/ecc.c b/crypto/ecc.c
index aab57dcf26c6..0f41ccc10ceb 100644
--- a/crypto/ecc.c
+++ b/crypto/ecc.c
@@ -904,7 +904,7 @@ static bool vli_mmod_fast(u64 *result, u64 *product,
 	const unsigned int ndigits = curve->g.ndigits;
 
 	/* Currently, all NIST have name nist_.* */
-	if (strncmp(curve->name, "nist_", 5) != 0) {
+	if (curve && curve->name && strncmp(curve->name, "nist_", 5) != 0) {
 		/* Try to handle Pseudo-Marsenne primes. */
 		if (curve_prime[ndigits - 1] == -1ull) {
 			vli_mmod_special(result, product, curve_prime,
diff --git a/crypto/ecc.h b/crypto/ecc.h
index 861de67b538f..9a668594012b 100644
--- a/crypto/ecc.h
+++ b/crypto/ecc.h
@@ -30,7 +30,7 @@
 #define ECC_CURVE_NIST_P192_DIGITS  3
 #define ECC_CURVE_NIST_P256_DIGITS  4
 #define ECC_CURVE_NIST_P384_DIGITS  6
-#define ECC_MAX_DIGITS              (ECC_CURVE_NIST_P384_DIGITS)
+#define ECC_MAX_DIGITS				(512/64)
 
 #define ECC_DIGITS_TO_BYTES_SHIFT 3
 
diff --git a/crypto/ecdsa.c b/crypto/ecdsa.c
index 4b45230276b3..4dfbf8f32a0b 100644
--- a/crypto/ecdsa.c
+++ b/crypto/ecdsa.c
@@ -101,7 +101,7 @@ int ecdsa_get_signature_r(void *context, size_t hdrlen, unsigned char tag,
 	struct ecdsa_signature_ctx *sig = context;
 
 	return ecdsa_get_signature_rs(sig->r, hdrlen, tag, value, vlen,
-				      sig->curve->g.ndigits);
+					sig->curve->g.ndigits);
 }
 
 int ecdsa_get_signature_s(void *context, size_t hdrlen, unsigned char tag,
@@ -110,7 +110,7 @@ int ecdsa_get_signature_s(void *context, size_t hdrlen, unsigned char tag,
 	struct ecdsa_signature_ctx *sig = context;
 
 	return ecdsa_get_signature_rs(sig->s, hdrlen, tag, value, vlen,
-				      sig->curve->g.ndigits);
+					sig->curve->g.ndigits);
 }
 
 static int _ecdsa_verify(struct ecc_ctx *ctx, const u64 *hash,
@@ -127,7 +127,7 @@ static int _ecdsa_verify(struct ecc_ctx *ctx, const u64 *hash,
 
 	/* 0 < r < n  and 0 < s < n */
 	if (vli_is_zero(r, ndigits) || vli_cmp(r, curve->n, ndigits) >= 0 ||
-	    vli_is_zero(s, ndigits) || vli_cmp(s, curve->n, ndigits) >= 0)
+		vli_is_zero(s, ndigits) || vli_cmp(s, curve->n, ndigits) >= 0)
 		return -EBADMSG;
 
 	/* hash is given */
@@ -183,7 +183,7 @@ static int ecdsa_verify(struct akcipher_request *req)
 		buffer, req->src_len + req->dst_len, 0);
 
 	ret = asn1_ber_decoder(&ecdsasignature_decoder, &sig_ctx,
-			       buffer, req->src_len);
+					buffer, req->src_len);
 	if (ret < 0)
 		goto error;
 
@@ -233,17 +233,19 @@ static int ecdsa_ecc_ctx_reset(struct ecc_ctx *ctx)
 	ret = ecdsa_ecc_ctx_init(ctx, curve_id);
 	if (ret == 0)
 		ctx->pub_key = ECC_POINT_INIT(ctx->x, ctx->y,
-					      ctx->curve->g.ndigits);
+					ctx->curve->g.ndigits);
 	return ret;
 }
 
+#define UNPACKED_KEY_ID 0x04
+
 /*
  * Set the public key given the raw uncompressed key data from an X509
  * certificate. The key data contain the concatenated X and Y coordinates of
  * the public key.
  */
 static int ecdsa_set_pub_key(struct crypto_akcipher *tfm,
-			     const void *key, unsigned int keylen)
+				const void *key, unsigned int keylen)
 {
 	struct ecc_ctx *ctx = akcipher_tfm_ctx(tfm);
 	const unsigned char *d = key;
@@ -258,7 +260,7 @@ static int ecdsa_set_pub_key(struct crypto_akcipher *tfm,
 	if (keylen < 1 || (((keylen - 1) >> 1) % sizeof(u64)) != 0)
 		return -EINVAL;
 	/* we only accept uncompressed format */
-	if (d[0] != 4)
+	if (d[0] != UNPACKED_KEY_ID)
 		return -EINVAL;
 
 	keylen--;
@@ -289,6 +291,28 @@ static unsigned int ecdsa_max_size(struct crypto_akcipher *tfm)
 	return ctx->pub_key.ndigits << ECC_DIGITS_TO_BYTES_SHIFT;
 }
 
+static int ecdsa_nist_p384_init_tfm(struct crypto_akcipher *tfm)
+{
+	struct ecc_ctx *ctx = akcipher_tfm_ctx(tfm);
+
+	return ecdsa_ecc_ctx_init(ctx, ECC_CURVE_NIST_P384);
+}
+
+static struct akcipher_alg ecdsa_nist_p384 = {
+	.verify = ecdsa_verify,
+	.set_pub_key = ecdsa_set_pub_key,
+	.max_size = ecdsa_max_size,
+	.init = ecdsa_nist_p384_init_tfm,
+	.exit = ecdsa_exit_tfm,
+	.base = {
+		.cra_name = "ecdsa-nist-p384",
+		.cra_driver_name = "ecdsa-nist-p384-generic",
+		.cra_priority = 100,
+		.cra_module = THIS_MODULE,
+		.cra_ctxsize = sizeof(struct ecc_ctx),
+	},
+};
+
 static int ecdsa_nist_p256_init_tfm(struct crypto_akcipher *tfm)
 {
 	struct ecc_ctx *ctx = akcipher_tfm_ctx(tfm);
@@ -342,7 +366,12 @@ static int ecdsa_init(void)
 	ret = crypto_register_akcipher(&ecdsa_nist_p192);
 	ecdsa_nist_p192_registered = ret == 0;
 
-	return crypto_register_akcipher(&ecdsa_nist_p256);
+	ret = crypto_register_akcipher(&ecdsa_nist_p256);
+	if (ret != 0)
+		return ret;
+
+	ret = crypto_register_akcipher(&ecdsa_nist_p384);
+	return ret;
 }
 
 static void ecdsa_exit(void)
@@ -350,6 +379,7 @@ static void ecdsa_exit(void)
 	if (ecdsa_nist_p192_registered)
 		crypto_unregister_akcipher(&ecdsa_nist_p192);
 	crypto_unregister_akcipher(&ecdsa_nist_p256);
+	crypto_unregister_akcipher(&ecdsa_nist_p384);
 }
 
 subsys_initcall(ecdsa_init);
diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index 67c6c229487c..367aba992548 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -4922,6 +4922,12 @@ static const struct alg_test_desc alg_test_descs[] = {
 		.suite = {
 			.akcipher = __VECS(ecdsa_nist_p256_tv_template)
 		}
+	}, {
+		.alg = "ecdsa-nist-p384",
+		.test = alg_test_akcipher,
+		.suite = {
+			.akcipher = __VECS(ecdsa_nist_p384_tv_template)
+		}
 	}, {
 		.alg = "ecrdsa",
 		.test = alg_test_akcipher,
diff --git a/crypto/testmgr.h b/crypto/testmgr.h
index a860b669047c..de9bb4226b8b 100644
--- a/crypto/testmgr.h
+++ b/crypto/testmgr.h
@@ -833,6 +833,163 @@ static const struct akcipher_testvec ecdsa_nist_p256_tv_template[] = {
 	},
 };
 
+static const struct akcipher_testvec ecdsa_nist_p384_tv_template[] = {
+	{
+	.key = /* secp384r1(sha1) */
+	"\x04\x89\x25\xf3\x97\x88\xcb\xb0\x78\xc5\x72\x9a\x14\x6e\x7a\xb1"
+	"\x5a\xa5\x24\xf1\x95\x06\x9e\x28\xfb\xc4\xb9\xbe\x5a\x0d\xd9\x9f"
+	"\xf3\xd1\x4d\x2d\x07\x99\xbd\xda\xa7\x66\xec\xbb\xea\xba\x79\x42"
+	"\xc9\x34\x89\x6a\xe7\x0b\xc3\xf2\xfe\x32\x30\xbe\xba\xf9\xdf\x7e"
+	"\x4b\x6a\x07\x8e\x26\x66\x3f\x1d\xec\xa2\x57\x91\x51\xdd\x17\x0e"
+	"\x0b\x25\xd6\x80\x5c\x3b\xe6\x1a\x98\x48\x91\x45\x7a\x73\xb0\xc3"
+	"\xf1",
+	.key_len = 97,
+	.params =
+	"\x30\x10\x06\x07\x2a\x86\x48\xce\x3d\x02\x01\x06\x05\x2b\x81\x04"
+	"\x00\x22",
+	.param_len = 18,
+	.m =
+	"\x12\x55\x28\xf0\x77\xd5\xb6\x21\x71\x32\x48\xcd\x28\xa8\x25\x22"
+	"\x3a\x69\xc1\x93",
+	.m_size = 20,
+	.algo = OID_id_ecdsa_with_sha1,
+	.c =
+	"\x30\x66\x02\x31\x00\xf5\x0f\x24\x4c\x07\x93\x6f\x21\x57\x55\x07"
+	"\x20\x43\x30\xde\xa0\x8d\x26\x8e\xae\x63\x3f\xbc\x20\x3a\xc6\xf1"
+	"\x32\x3c\xce\x70\x2b\x78\xf1\x4c\x26\xe6\x5b\x86\xcf\xec\x7c\x7e"
+	"\xd0\x87\xd7\xd7\x6e\x02\x31\x00\xcd\xbb\x7e\x81\x5d\x8f\x63\xc0"
+	"\x5f\x63\xb1\xbe\x5e\x4c\x0e\xa1\xdf\x28\x8c\x1b\xfa\xf9\x95\x88"
+	"\x74\xa0\x0f\xbf\xaf\xc3\x36\x76\x4a\xa1\x59\xf1\x1c\xa4\x58\x26"
+	"\x79\x12\x2a\xb7\xc5\x15\x92\xc5",
+	.c_size = 104,
+	.public_key_vec = true,
+	.siggen_sigver_test = true,
+	}, {
+	.key = /* secp384r1(sha224) */
+	"\x04\x69\x6c\xcf\x62\xee\xd0\x0d\xe5\xb5\x2f\x70\x54\xcf\x26\xa0"
+	"\xd9\x98\x8d\x92\x2a\xab\x9b\x11\xcb\x48\x18\xa1\xa9\x0d\xd5\x18"
+	"\x3e\xe8\x29\x6e\xf6\xe4\xb5\x8e\xc7\x4a\xc2\x5f\x37\x13\x99\x05"
+	"\xb6\xa4\x9d\xf9\xfb\x79\x41\xe7\xd7\x96\x9f\x73\x3b\x39\x43\xdc"
+	"\xda\xf4\x06\xb9\xa5\x29\x01\x9d\x3b\xe1\xd8\x68\x77\x2a\xf4\x50"
+	"\x6b\x93\x99\x6c\x66\x4c\x42\x3f\x65\x60\x6c\x1c\x0b\x93\x9b\x9d"
+	"\xe0",
+	.key_len = 97,
+	.params =
+	"\x30\x10\x06\x07\x2a\x86\x48\xce\x3d\x02\x01\x06\x05\x2b\x81\x04"
+	"\x00\x22",
+	.param_len = 18,
+	.m =
+	"\x12\x80\xb6\xeb\x25\xe2\x3d\xf0\x21\x32\x96\x17\x3a\x38\x39\xfd"
+	"\x1f\x05\x34\x7b\xb8\xf9\x71\x66\x03\x4f\xd5\xe5",
+	.m_size = 28,
+	.algo = OID_id_ecdsa_with_sha224,
+	.c =
+	"\x30\x66\x02\x31\x00\x8a\x51\x84\xce\x13\x1e\xd2\xdc\xec\xcb\xe4"
+	"\x89\x47\xb2\xf7\xbc\x97\xf1\xc8\x72\x26\xcf\x5a\x5e\xc5\xda\xb4"
+	"\xe3\x93\x07\xe0\x99\xc9\x9c\x11\xb8\x10\x01\xc5\x41\x3f\xdd\x15"
+	"\x1b\x68\x2b\x9d\x8b\x02\x31\x00\x8b\x03\x2c\xfc\x1f\xd1\xa9\xa4"
+	"\x4b\x00\x08\x31\x6c\xf5\xd5\xf6\xdf\xd8\x68\xa2\x64\x42\x65\xf3"
+	"\x4d\xd0\xc6\x6e\xb0\xe9\xfc\x14\x9f\x19\xd0\x42\x8b\x93\xc2\x11"
+	"\x88\x2b\x82\x26\x5e\x1c\xda\xfb",
+	.c_size = 104,
+	.public_key_vec = true,
+	.siggen_sigver_test = true,
+	}, {
+	.key = /* secp384r1(sha256) */
+	"\x04\xee\xd6\xda\x3e\x94\x90\x00\x27\xed\xf8\x64\x55\xd6\x51\x9a"
+	"\x1f\x52\x00\x63\x78\xf1\xa9\xfd\x75\x4c\x9e\xb2\x20\x1a\x91\x5a"
+	"\xba\x7a\xa3\xe5\x6c\xb6\x25\x68\x4b\xe8\x13\xa6\x54\x87\x2c\x0e"
+	"\xd0\x83\x95\xbc\xbf\xc5\x28\x4f\x77\x1c\x46\xa6\xf0\xbc\xd4\xa4"
+	"\x8d\xc2\x8f\xb3\x32\x37\x40\xd6\xca\xf8\xae\x07\x34\x52\x39\x52"
+	"\x17\xc3\x34\x29\xd6\x40\xea\x5c\xb9\x3f\xfb\x32\x2e\x12\x33\xbc"
+	"\xab",
+	.key_len = 97,
+	.params =
+	"\x30\x10\x06\x07\x2a\x86\x48\xce\x3d\x02\x01\x06\x05\x2b\x81\x04"
+	"\x00\x22",
+	.param_len = 18,
+	.m =
+	"\xaa\xe7\xfd\x03\x26\xcb\x94\x71\xe4\xce\x0f\xc5\xff\xa6\x29\xa3"
+	"\xe1\xcc\x4c\x35\x4e\xde\xca\x80\xab\x26\x0c\x25\xe6\x68\x11\xc2",
+	.m_size = 32,
+	.algo = OID_id_ecdsa_with_sha256,
+	.c =
+	"\x30\x64\x02\x30\x08\x09\x12\x9d\x6e\x96\x64\xa6\x8e\x3f\x7e\xce"
+	"\x0a\x9b\xaa\x59\xcc\x47\x53\x87\xbc\xbd\x83\x3f\xaf\x06\x3f\x84"
+	"\x04\xe2\xf9\x67\xb6\xc6\xfc\x70\x2e\x66\x3c\x77\xc8\x8d\x2c\x79"
+	"\x3a\x8e\x32\xc4\x02\x30\x40\x34\xb8\x90\xa9\x80\xab\x47\x26\xa2"
+	"\xb0\x89\x42\x0a\xda\xd9\xdd\xce\xbc\xb2\x97\xf4\x9c\xf3\x15\x68"
+	"\xc0\x75\x3e\x23\x5e\x36\x4f\x8d\xde\x1e\x93\x8d\x95\xbb\x10\x0e"
+	"\xf4\x1f\x39\xca\x4d\x43",
+	.c_size = 102,
+	.public_key_vec = true,
+	.siggen_sigver_test = true,
+	}, {
+	.key = /* secp384r1(sha384) */
+	"\x04\x3a\x2f\x62\xe7\x1a\xcf\x24\xd0\x0b\x7c\xe0\xed\x46\x0a\x4f"
+	"\x74\x16\x43\xe9\x1a\x25\x7c\x55\xff\xf0\x29\x68\x66\x20\x91\xf9"
+	"\xdb\x2b\xf6\xb3\x6c\x54\x01\xca\xc7\x6a\x5c\x0d\xeb\x68\xd9\x3c"
+	"\xf1\x01\x74\x1f\xf9\x6c\xe5\x5b\x60\xe9\x7f\x5d\xb3\x12\x80\x2a"
+	"\xd8\x67\x92\xc9\x0e\x4c\x4c\x6b\xa1\xb2\xa8\x1e\xac\x1c\x97\xd9"
+	"\x21\x67\xe5\x1b\x5a\x52\x31\x68\xd6\xee\xf0\x19\xb0\x55\xed\x89"
+	"\x9e",
+	.key_len = 97,
+	.params =
+	"\x30\x10\x06\x07\x2a\x86\x48\xce\x3d\x02\x01\x06\x05\x2b\x81\x04"
+	"\x00\x22",
+	.param_len = 18,
+	.m =
+	"\x8d\xf2\xc0\xe9\xa8\xf3\x8e\x44\xc4\x8c\x1a\xa0\xb8\xd7\x17\xdf"
+	"\xf2\x37\x1b\xc6\xe3\xf5\x62\xcc\x68\xf5\xd5\x0b\xbf\x73\x2b\xb1"
+	"\xb0\x4c\x04\x00\x31\xab\xfe\xc8\xd6\x09\xc8\xf2\xea\xd3\x28\xff",
+	.m_size = 48,
+	.algo = OID_id_ecdsa_with_sha384,
+	.c =
+	"\x30\x66\x02\x31\x00\x9b\x28\x68\xc0\xa1\xea\x8c\x50\xee\x2e\x62"
+	"\x35\x46\xfa\x00\xd8\x2d\x7a\x91\x5f\x49\x2d\x22\x08\x29\xe6\xfb"
+	"\xca\x8c\xd6\xb6\xb4\x3b\x1f\x07\x8f\x15\x02\xfe\x1d\xa2\xa4\xc8"
+	"\xf2\xea\x9d\x11\x1f\x02\x31\x00\xfc\x50\xf6\x43\xbd\x50\x82\x0e"
+	"\xbf\xe3\x75\x24\x49\xac\xfb\xc8\x71\xcd\x8f\x18\x99\xf0\x0f\x13"
+	"\x44\x92\x8c\x86\x99\x65\xb3\x97\x96\x17\x04\xc9\x05\x77\xf1\x8e"
+	"\xab\x8d\x4e\xde\xe6\x6d\x9b\x66",
+	.c_size = 104,
+	.public_key_vec = true,
+	.siggen_sigver_test = true,
+	}, {
+	.key = /* secp384r1(sha512) */
+	"\x04\xb4\xe7\xc1\xeb\x64\x25\x22\x46\xc3\x86\x61\x80\xbe\x1e\x46"
+	"\xcb\xf6\x05\xc2\xee\x73\x83\xbc\xea\x30\x61\x4d\x40\x05\x41\xf4"
+	"\x8c\xe3\x0e\x5c\xf0\x50\xf2\x07\x19\xe8\x4f\x25\xbe\xee\x0c\x95"
+	"\x54\x36\x86\xec\xc2\x20\x75\xf3\x89\xb5\x11\xa1\xb7\xf5\xaf\xbe"
+	"\x81\xe4\xc3\x39\x06\xbd\xe4\xfe\x68\x1c\x6d\x99\x2b\x1b\x63\xfa"
+	"\xdf\x42\x5c\xc2\x5a\xc7\x0c\xf4\x15\xf7\x1b\xa3\x2e\xd7\x00\xac"
+	"\xa3",
+	.key_len = 97,
+	.params =
+	"\x30\x10\x06\x07\x2a\x86\x48\xce\x3d\x02\x01\x06\x05\x2b\x81\x04"
+	"\x00\x22",
+	.param_len = 18,
+	.m =
+	"\xe8\xb7\x52\x7d\x1a\x44\x20\x05\x53\x6b\x3a\x68\xf2\xe7\x6c\xa1"
+	"\xae\x9d\x84\xbb\xba\x52\x43\x3e\x2c\x42\x78\x49\xbf\x78\xb2\x71"
+	"\xeb\xe1\xe0\xe8\x42\x7b\x11\xad\x2b\x99\x05\x1d\x36\xe6\xac\xfc"
+	"\x55\x73\xf0\x15\x63\x39\xb8\x6a\x6a\xc5\x91\x5b\xca\x6a\xa8\x0e",
+	.m_size = 64,
+	.algo = OID_id_ecdsa_with_sha512,
+	.c =
+	"\x30\x63\x02\x2f\x1d\x20\x94\x77\xfe\x31\xfa\x4d\xc6\xef\xda\x02"
+	"\xe7\x0f\x52\x9a\x02\xde\x93\xe8\x83\xe4\x84\x4c\xfc\x6f\x80\xe3"
+	"\xaf\xb3\xd9\xdc\x2b\x43\x0e\x6a\xb3\x53\x6f\x3e\xb3\xc7\xa8\xb3"
+	"\x17\x77\xd1\x02\x30\x63\xf6\xf0\x3d\x5f\x5f\x99\x3f\xde\x3a\x3d"
+	"\x16\xaf\xb4\x52\x6a\xec\x63\xe3\x0c\xec\x50\xdc\xcc\xc4\x6a\x03"
+	"\x5f\x8d\x7a\xf9\xfb\x34\xe4\x8b\x80\xa5\xb6\xda\x2c\x4e\x45\xcf"
+	"\x3c\x93\xff\x50\x5d",
+	.c_size = 101,
+	.public_key_vec = true,
+	.siggen_sigver_test = true,
+	},
+};
+
 /*
  * EC-RDSA test vectors are generated by gost-engine.
  */
-- 
2.25.1