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authorRadu Alexe <radu.alexe@nxp.com>2017-05-03 13:17:13 (GMT)
committerXie Xiaobo <xiaobo.xie@nxp.com>2017-09-25 07:25:36 (GMT)
commitb5d8aefe5f22494dd4f910eb3bfe1791eb578731 (patch)
tree9c81880b9030d355ca141f3f0578dd8607ebac56 /crypto
parent543dd4103bf940af2d88cf9fe2d7f173ea45615e (diff)
downloadlinux-b5d8aefe5f22494dd4f910eb3bfe1791eb578731.tar.xz
crypto: add support for TLS 1.0 record encryption
This patch adds kernel support for encryption/decryption of TLS 1.0 records using block ciphers. Implementation is similar to authenc in the sense that the base algorithms (AES, SHA1) are combined in a template to produce TLS encapsulation frames. The composite algorithm will be called "tls10(hmac(<digest>),cbc(<cipher>))". The cipher and hmac keys are wrapped in the same format used by authenc.c. Signed-off-by: Radu Alexe <radu.alexe@nxp.com> Signed-off-by: Cristian Stoica <cristian.stoica@nxp.com> Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/Kconfig20
-rw-r--r--crypto/Makefile1
-rw-r--r--crypto/tcrypt.c3
-rw-r--r--crypto/testmgr.c244
-rw-r--r--crypto/testmgr.h219
-rw-r--r--crypto/tls.c607
6 files changed, 1094 insertions, 0 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 84d7148..a4ad178 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -296,6 +296,26 @@ config CRYPTO_ECHAINIV
a sequence number xored with a salt. This is the default
algorithm for CBC.
+config CRYPTO_TLS
+ tristate "TLS support"
+ select CRYPTO_AEAD
+ select CRYPTO_BLKCIPHER
+ select CRYPTO_MANAGER
+ select CRYPTO_HASH
+ select CRYPTO_NULL
+ select CRYPTO_AUTHENC
+ help
+ Support for TLS 1.0 record encryption and decryption
+
+ This module adds support for encryption/decryption of TLS 1.0 frames
+ using blockcipher algorithms. The name of the resulting algorithm is
+ "tls10(hmac(<digest>),cbc(<cipher>))". By default, the generic base
+ algorithms are used (e.g. aes-generic, sha1-generic), but hardware
+ accelerated versions will be used automatically if available.
+
+ User-space applications (OpenSSL, GnuTLS) can offload TLS 1.0
+ operations through AF_ALG or cryptodev interfaces
+
comment "Block modes"
config CRYPTO_CBC
diff --git a/crypto/Makefile b/crypto/Makefile
index 9e52b3c..5916e84 100644
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -115,6 +115,7 @@ obj-$(CONFIG_CRYPTO_CRC32C) += crc32c_generic.o
obj-$(CONFIG_CRYPTO_CRC32) += crc32_generic.o
obj-$(CONFIG_CRYPTO_CRCT10DIF) += crct10dif_common.o crct10dif_generic.o
obj-$(CONFIG_CRYPTO_AUTHENC) += authenc.o authencesn.o
+obj-$(CONFIG_CRYPTO_TLS) += tls.o
obj-$(CONFIG_CRYPTO_LZO) += lzo.o
obj-$(CONFIG_CRYPTO_LZ4) += lz4.o
obj-$(CONFIG_CRYPTO_LZ4HC) += lz4hc.o
diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c
index 4ff49d4..03df09f 100644
--- a/crypto/tcrypt.c
+++ b/crypto/tcrypt.c
@@ -1394,6 +1394,9 @@ static int do_test(const char *alg, u32 type, u32 mask, int m)
case 190:
ret += tcrypt_test("authenc(hmac(sha512),cbc(des3_ede))");
break;
+ case 191:
+ ret += tcrypt_test("tls10(hmac(sha1),cbc(aes))");
+ break;
case 200:
test_cipher_speed("ecb(aes)", ENCRYPT, sec, NULL, 0,
speed_template_16_24_32);
diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index cd075c7..73d91fb 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -117,6 +117,13 @@ struct drbg_test_suite {
unsigned int count;
};
+struct tls_test_suite {
+ struct {
+ struct tls_testvec *vecs;
+ unsigned int count;
+ } enc, dec;
+};
+
struct akcipher_test_suite {
const struct akcipher_testvec *vecs;
unsigned int count;
@@ -140,6 +147,7 @@ struct alg_test_desc {
struct hash_test_suite hash;
struct cprng_test_suite cprng;
struct drbg_test_suite drbg;
+ struct tls_test_suite tls;
struct akcipher_test_suite akcipher;
struct kpp_test_suite kpp;
} suite;
@@ -991,6 +999,233 @@ static int test_aead(struct crypto_aead *tfm, int enc,
return 0;
}
+static int __test_tls(struct crypto_aead *tfm, int enc,
+ struct tls_testvec *template, unsigned int tcount,
+ const bool diff_dst)
+{
+ const char *algo = crypto_tfm_alg_driver_name(crypto_aead_tfm(tfm));
+ unsigned int i, k, authsize;
+ char *q;
+ struct aead_request *req;
+ struct scatterlist *sg;
+ struct scatterlist *sgout;
+ const char *e, *d;
+ struct tcrypt_result result;
+ void *input;
+ void *output;
+ void *assoc;
+ char *iv;
+ char *key;
+ char *xbuf[XBUFSIZE];
+ char *xoutbuf[XBUFSIZE];
+ char *axbuf[XBUFSIZE];
+ int ret = -ENOMEM;
+
+ if (testmgr_alloc_buf(xbuf))
+ goto out_noxbuf;
+
+ if (diff_dst && testmgr_alloc_buf(xoutbuf))
+ goto out_nooutbuf;
+
+ if (testmgr_alloc_buf(axbuf))
+ goto out_noaxbuf;
+
+ iv = kzalloc(MAX_IVLEN, GFP_KERNEL);
+ if (!iv)
+ goto out_noiv;
+
+ key = kzalloc(MAX_KEYLEN, GFP_KERNEL);
+ if (!key)
+ goto out_nokey;
+
+ sg = kmalloc(sizeof(*sg) * 8 * (diff_dst ? 2 : 1), GFP_KERNEL);
+ if (!sg)
+ goto out_nosg;
+
+ sgout = sg + 8;
+
+ d = diff_dst ? "-ddst" : "";
+ e = enc ? "encryption" : "decryption";
+
+ init_completion(&result.completion);
+
+ req = aead_request_alloc(tfm, GFP_KERNEL);
+ if (!req) {
+ pr_err("alg: tls%s: Failed to allocate request for %s\n",
+ d, algo);
+ goto out;
+ }
+
+ aead_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
+ tcrypt_complete, &result);
+
+ for (i = 0; i < tcount; i++) {
+ input = xbuf[0];
+ assoc = axbuf[0];
+
+ ret = -EINVAL;
+ if (WARN_ON(template[i].ilen > PAGE_SIZE ||
+ template[i].alen > PAGE_SIZE))
+ goto out;
+
+ memcpy(assoc, template[i].assoc, template[i].alen);
+ memcpy(input, template[i].input, template[i].ilen);
+
+ if (template[i].iv)
+ memcpy(iv, template[i].iv, MAX_IVLEN);
+ else
+ memset(iv, 0, MAX_IVLEN);
+
+ crypto_aead_clear_flags(tfm, ~0);
+
+ if (template[i].klen > MAX_KEYLEN) {
+ pr_err("alg: aead%s: setkey failed on test %d for %s: key size %d > %d\n",
+ d, i, algo, template[i].klen, MAX_KEYLEN);
+ ret = -EINVAL;
+ goto out;
+ }
+ memcpy(key, template[i].key, template[i].klen);
+
+ ret = crypto_aead_setkey(tfm, key, template[i].klen);
+ if (!ret == template[i].fail) {
+ pr_err("alg: tls%s: setkey failed on test %d for %s: flags=%x\n",
+ d, i, algo, crypto_aead_get_flags(tfm));
+ goto out;
+ } else if (ret)
+ continue;
+
+ authsize = 20;
+ ret = crypto_aead_setauthsize(tfm, authsize);
+ if (ret) {
+ pr_err("alg: aead%s: Failed to set authsize to %u on test %d for %s\n",
+ d, authsize, i, algo);
+ goto out;
+ }
+
+ k = !!template[i].alen;
+ sg_init_table(sg, k + 1);
+ sg_set_buf(&sg[0], assoc, template[i].alen);
+ sg_set_buf(&sg[k], input, (enc ? template[i].rlen :
+ template[i].ilen));
+ output = input;
+
+ if (diff_dst) {
+ sg_init_table(sgout, k + 1);
+ sg_set_buf(&sgout[0], assoc, template[i].alen);
+
+ output = xoutbuf[0];
+ sg_set_buf(&sgout[k], output,
+ (enc ? template[i].rlen : template[i].ilen));
+ }
+
+ aead_request_set_crypt(req, sg, (diff_dst) ? sgout : sg,
+ template[i].ilen, iv);
+
+ aead_request_set_ad(req, template[i].alen);
+
+ ret = enc ? crypto_aead_encrypt(req) : crypto_aead_decrypt(req);
+
+ switch (ret) {
+ case 0:
+ if (template[i].novrfy) {
+ /* verification was supposed to fail */
+ pr_err("alg: tls%s: %s failed on test %d for %s: ret was 0, expected -EBADMSG\n",
+ d, e, i, algo);
+ /* so really, we got a bad message */
+ ret = -EBADMSG;
+ goto out;
+ }
+ break;
+ case -EINPROGRESS:
+ case -EBUSY:
+ wait_for_completion(&result.completion);
+ reinit_completion(&result.completion);
+ ret = result.err;
+ if (!ret)
+ break;
+ case -EBADMSG:
+ /* verification failure was expected */
+ if (template[i].novrfy)
+ continue;
+ /* fall through */
+ default:
+ pr_err("alg: tls%s: %s failed on test %d for %s: ret=%d\n",
+ d, e, i, algo, -ret);
+ goto out;
+ }
+
+ q = output;
+ if (memcmp(q, template[i].result, template[i].rlen)) {
+ pr_err("alg: tls%s: Test %d failed on %s for %s\n",
+ d, i, e, algo);
+ hexdump(q, template[i].rlen);
+ pr_err("should be:\n");
+ hexdump(template[i].result, template[i].rlen);
+ ret = -EINVAL;
+ goto out;
+ }
+ }
+
+out:
+ aead_request_free(req);
+
+ kfree(sg);
+out_nosg:
+ kfree(key);
+out_nokey:
+ kfree(iv);
+out_noiv:
+ testmgr_free_buf(axbuf);
+out_noaxbuf:
+ if (diff_dst)
+ testmgr_free_buf(xoutbuf);
+out_nooutbuf:
+ testmgr_free_buf(xbuf);
+out_noxbuf:
+ return ret;
+}
+
+static int test_tls(struct crypto_aead *tfm, int enc,
+ struct tls_testvec *template, unsigned int tcount)
+{
+ int ret;
+ /* test 'dst == src' case */
+ ret = __test_tls(tfm, enc, template, tcount, false);
+ if (ret)
+ return ret;
+ /* test 'dst != src' case */
+ return __test_tls(tfm, enc, template, tcount, true);
+}
+
+static int alg_test_tls(const struct alg_test_desc *desc, const char *driver,
+ u32 type, u32 mask)
+{
+ struct crypto_aead *tfm;
+ int err = 0;
+
+ tfm = crypto_alloc_aead(driver, type, mask);
+ if (IS_ERR(tfm)) {
+ pr_err("alg: aead: Failed to load transform for %s: %ld\n",
+ driver, PTR_ERR(tfm));
+ return PTR_ERR(tfm);
+ }
+
+ if (desc->suite.tls.enc.vecs) {
+ err = test_tls(tfm, ENCRYPT, desc->suite.tls.enc.vecs,
+ desc->suite.tls.enc.count);
+ if (err)
+ goto out;
+ }
+
+ if (!err && desc->suite.tls.dec.vecs)
+ err = test_tls(tfm, DECRYPT, desc->suite.tls.dec.vecs,
+ desc->suite.tls.dec.count);
+
+out:
+ crypto_free_aead(tfm);
+ return err;
+}
+
static int test_cipher(struct crypto_cipher *tfm, int enc,
const struct cipher_testvec *template,
unsigned int tcount)
@@ -3414,6 +3649,15 @@ static const struct alg_test_desc alg_test_descs[] = {
.hash = __VECS(tgr192_tv_template)
}
}, {
+ .alg = "tls10(hmac(sha1),cbc(aes))",
+ .test = alg_test_tls,
+ .suite = {
+ .tls = {
+ .enc = __VECS(tls_enc_tv_template),
+ .dec = __VECS(tls_dec_tv_template)
+ }
+ }
+ }, {
.alg = "vmac(aes)",
.test = alg_test_hash,
.suite = {
diff --git a/crypto/testmgr.h b/crypto/testmgr.h
index 348fb41..ce9f433 100644
--- a/crypto/testmgr.h
+++ b/crypto/testmgr.h
@@ -125,6 +125,20 @@ struct drbg_testvec {
size_t expectedlen;
};
+struct tls_testvec {
+ char *key; /* wrapped keys for encryption and authentication */
+ char *iv; /* initialization vector */
+ char *input; /* input data */
+ char *assoc; /* associated data: seq num, type, version, input len */
+ char *result; /* result data */
+ unsigned char fail; /* the test failure is expected */
+ unsigned char novrfy; /* dec verification failure expected */
+ unsigned char klen; /* key length */
+ unsigned short ilen; /* input data length */
+ unsigned short alen; /* associated data length */
+ unsigned short rlen; /* result length */
+};
+
struct akcipher_testvec {
const unsigned char *key;
const unsigned char *m;
@@ -149,6 +163,211 @@ struct kpp_testvec {
static const char zeroed_string[48];
/*
+ * TLS1.0 synthetic test vectors
+ */
+static struct tls_testvec tls_enc_tv_template[] = {
+ {
+#ifdef __LITTLE_ENDIAN
+ .key = "\x08\x00" /* rta length */
+ "\x01\x00" /* rta type */
+#else
+ .key = "\x00\x08" /* rta length */
+ "\x00\x01" /* rta type */
+#endif
+ "\x00\x00\x00\x10" /* enc key length */
+ "authenticationkey20benckeyis16_bytes",
+ .klen = 8 + 20 + 16,
+ .iv = "iv0123456789abcd",
+ .input = "Single block msg",
+ .ilen = 16,
+ .assoc = "\x00\x01\x02\x03\x04\x05\x06\x07"
+ "\x00\x03\x01\x00\x10",
+ .alen = 13,
+ .result = "\xd5\xac\xb\xd2\xac\xad\x3f\xb1"
+ "\x59\x79\x1e\x91\x5f\x52\x14\x9c"
+ "\xc0\x75\xd8\x4c\x97\x0f\x07\x73"
+ "\xdc\x89\x47\x49\x49\xcb\x30\x6b"
+ "\x1b\x45\x23\xa1\xd0\x51\xcf\x02"
+ "\x2e\xa8\x5d\xa0\xfe\xca\x82\x61",
+ .rlen = 16 + 20 + 12,
+ }, {
+#ifdef __LITTLE_ENDIAN
+ .key = "\x08\x00" /* rta length */
+ "\x01\x00" /* rta type */
+#else
+ .key = "\x00\x08" /* rta length */
+ "\x00\x01" /* rta type */
+#endif
+ "\x00\x00\x00\x10" /* enc key length */
+ "authenticationkey20benckeyis16_bytes",
+ .klen = 8 + 20 + 16,
+ .iv = "iv0123456789abcd",
+ .input = "",
+ .ilen = 0,
+ .assoc = "\x00\x01\x02\x03\x04\x05\x06\x07"
+ "\x00\x03\x01\x00\x00",
+ .alen = 13,
+ .result = "\x58\x2a\x11\xc\x86\x8e\x4b\x67"
+ "\x2d\x16\x26\x1a\xac\x4b\xe2\x1a"
+ "\xe9\x6a\xcc\x4d\x6f\x79\x8a\x45"
+ "\x1f\x4e\x27\xf2\xa7\x59\xb4\x5a",
+ .rlen = 20 + 12,
+ }, {
+#ifdef __LITTLE_ENDIAN
+ .key = "\x08\x00" /* rta length */
+ "\x01\x00" /* rta type */
+#else
+ .key = "\x00\x08" /* rta length */
+ "\x00\x01" /* rta type */
+#endif
+ "\x00\x00\x00\x10" /* enc key length */
+ "authenticationkey20benckeyis16_bytes",
+ .klen = 8 + 20 + 16,
+ .iv = "iv0123456789abcd",
+ .input = "285 bytes plaintext285 bytes plaintext285 bytes"
+ " plaintext285 bytes plaintext285 bytes plaintext285"
+ " bytes plaintext285 bytes plaintext285 bytes"
+ " plaintext285 bytes plaintext285 bytes plaintext285"
+ " bytes plaintext285 bytes plaintext285 bytes"
+ " plaintext285 bytes plaintext285 bytes plaintext285"
+ " bytes plaintext285 bytes plaintext",
+ .ilen = 285,
+ .assoc = "\x00\x01\x02\x03\x04\x05\x06\x07"
+ "\x00\x03\x01\x01\x1d",
+ .alen = 13,
+ .result = "\x80\x23\x82\x44\x14\x2a\x1d\x94\xc\xc2\x1d\xd"
+ "\x3a\x32\x89\x4c\x57\x30\xa8\x89\x76\x46\xcc\x90"
+ "\x1d\x88\xb8\xa6\x1a\x58\xe\x2d\xeb\x2c\xc7\x3a"
+ "\x52\x4e\xdb\xb3\x1e\x83\x11\xf5\x3c\xce\x6e\x94"
+ "\xd3\x26\x6a\x9a\xd\xbd\xc7\x98\xb9\xb3\x3a\x51"
+ "\x1e\x4\x84\x8a\x8f\x54\x9a\x51\x69\x9c\xce\x31"
+ "\x8d\x5d\x8b\xee\x5f\x70\xc\xc9\xb8\x50\x54\xf8"
+ "\xb2\x4a\x7a\xcd\xeb\x7a\x82\x81\xc6\x41\xc8\x50"
+ "\x91\x8d\xc8\xed\xcd\x40\x8f\x55\xd1\xec\xc9\xac"
+ "\x15\x18\xf9\x20\xa0\xed\x18\xa1\xe3\x56\xe3\x14"
+ "\xe5\xe8\x66\x63\x20\xed\xe4\x62\x9d\xa3\xa4\x1d"
+ "\x81\x89\x18\xf2\x36\xae\xc8\x8a\x2b\xbc\xc3\xb8"
+ "\x80\xf\x97\x21\x36\x39\x8\x84\x23\x18\x9e\x9c"
+ "\x72\x32\x75\x2d\x2e\xf9\x60\xb\xe8\xcc\xd9\x74"
+ "\x4\x1b\x8e\x99\xc1\x94\xee\xd0\xac\x4e\xfc\x7e"
+ "\xf1\x96\xb3\xe7\x14\xb8\xf2\xc\x25\x97\x82\x6b"
+ "\xbd\x0\x65\xab\x5c\xe3\x16\xfb\x68\xef\xea\x9d"
+ "\xff\x44\x1d\x2a\x44\xf5\xc8\x56\x77\xb7\xbf\x13"
+ "\xc8\x54\xdb\x92\xfe\x16\x4c\xbe\x18\xe9\xb\x8d"
+ "\xb\xd4\x43\x58\x43\xaa\xf4\x3\x80\x97\x62\xd5"
+ "\xdf\x3c\x28\xaa\xee\x48\x4b\x55\x41\x1b\x31\x2"
+ "\xbe\xa0\x1c\xbd\xb7\x22\x2a\xe5\x53\x72\x73\x20"
+ "\x44\x4f\xe6\x1\x2b\x34\x33\x11\x7d\xfb\x10\xc1"
+ "\x66\x7c\xa6\xf4\x48\x36\x5e\x2\xda\x41\x4b\x3e"
+ "\xe7\x80\x17\x17\xce\xf1\x3e\x6a\x8e\x26\xf3\xb7"
+ "\x2b\x85\xd\x31\x8d\xba\x6c\x22\xb4\x28\x55\x7e"
+ "\x2a\x9e\x26\xf1\x3d\x21\xac\x65",
+ .rlen = 285 + 20 + 15,
+ }
+};
+
+static struct tls_testvec tls_dec_tv_template[] = {
+ {
+#ifdef __LITTLE_ENDIAN
+ .key = "\x08\x00" /* rta length */
+ "\x01\x00" /* rta type */
+#else
+ .key = "\x00\x08" /* rta length */
+ "\x00\x01" /* rta type */
+#endif
+ "\x00\x00\x00\x10" /* enc key length */
+ "authenticationkey20benckeyis16_bytes",
+ .klen = 8 + 20 + 16,
+ .iv = "iv0123456789abcd",
+ .input = "\xd5\xac\xb\xd2\xac\xad\x3f\xb1"
+ "\x59\x79\x1e\x91\x5f\x52\x14\x9c"
+ "\xc0\x75\xd8\x4c\x97\x0f\x07\x73"
+ "\xdc\x89\x47\x49\x49\xcb\x30\x6b"
+ "\x1b\x45\x23\xa1\xd0\x51\xcf\x02"
+ "\x2e\xa8\x5d\xa0\xfe\xca\x82\x61",
+ .ilen = 16 + 20 + 12,
+ .assoc = "\x00\x01\x02\x03\x04\x05\x06\x07"
+ "\x00\x03\x01\x00\x30",
+ .alen = 13,
+ .result = "Single block msg",
+ .rlen = 16,
+ }, {
+#ifdef __LITTLE_ENDIAN
+ .key = "\x08\x00" /* rta length */
+ "\x01\x00" /* rta type */
+#else
+ .key = "\x00\x08" /* rta length */
+ "\x00\x01" /* rta type */
+#endif
+ "\x00\x00\x00\x10" /* enc key length */
+ "authenticationkey20benckeyis16_bytes",
+ .klen = 8 + 20 + 16,
+ .iv = "iv0123456789abcd",
+ .input = "\x58\x2a\x11\xc\x86\x8e\x4b\x67"
+ "\x2d\x16\x26\x1a\xac\x4b\xe2\x1a"
+ "\xe9\x6a\xcc\x4d\x6f\x79\x8a\x45"
+ "\x1f\x4e\x27\xf2\xa7\x59\xb4\x5a",
+ .ilen = 20 + 12,
+ .assoc = "\x00\x01\x02\x03\x04\x05\x06\x07"
+ "\x00\x03\x01\x00\x20",
+ .alen = 13,
+ .result = "",
+ .rlen = 0,
+ }, {
+#ifdef __LITTLE_ENDIAN
+ .key = "\x08\x00" /* rta length */
+ "\x01\x00" /* rta type */
+#else
+ .key = "\x00\x08" /* rta length */
+ "\x00\x01" /* rta type */
+#endif
+ "\x00\x00\x00\x10" /* enc key length */
+ "authenticationkey20benckeyis16_bytes",
+ .klen = 8 + 20 + 16,
+ .iv = "iv0123456789abcd",
+ .input = "\x80\x23\x82\x44\x14\x2a\x1d\x94\xc\xc2\x1d\xd"
+ "\x3a\x32\x89\x4c\x57\x30\xa8\x89\x76\x46\xcc\x90"
+ "\x1d\x88\xb8\xa6\x1a\x58\xe\x2d\xeb\x2c\xc7\x3a"
+ "\x52\x4e\xdb\xb3\x1e\x83\x11\xf5\x3c\xce\x6e\x94"
+ "\xd3\x26\x6a\x9a\xd\xbd\xc7\x98\xb9\xb3\x3a\x51"
+ "\x1e\x4\x84\x8a\x8f\x54\x9a\x51\x69\x9c\xce\x31"
+ "\x8d\x5d\x8b\xee\x5f\x70\xc\xc9\xb8\x50\x54\xf8"
+ "\xb2\x4a\x7a\xcd\xeb\x7a\x82\x81\xc6\x41\xc8\x50"
+ "\x91\x8d\xc8\xed\xcd\x40\x8f\x55\xd1\xec\xc9\xac"
+ "\x15\x18\xf9\x20\xa0\xed\x18\xa1\xe3\x56\xe3\x14"
+ "\xe5\xe8\x66\x63\x20\xed\xe4\x62\x9d\xa3\xa4\x1d"
+ "\x81\x89\x18\xf2\x36\xae\xc8\x8a\x2b\xbc\xc3\xb8"
+ "\x80\xf\x97\x21\x36\x39\x8\x84\x23\x18\x9e\x9c"
+ "\x72\x32\x75\x2d\x2e\xf9\x60\xb\xe8\xcc\xd9\x74"
+ "\x4\x1b\x8e\x99\xc1\x94\xee\xd0\xac\x4e\xfc\x7e"
+ "\xf1\x96\xb3\xe7\x14\xb8\xf2\xc\x25\x97\x82\x6b"
+ "\xbd\x0\x65\xab\x5c\xe3\x16\xfb\x68\xef\xea\x9d"
+ "\xff\x44\x1d\x2a\x44\xf5\xc8\x56\x77\xb7\xbf\x13"
+ "\xc8\x54\xdb\x92\xfe\x16\x4c\xbe\x18\xe9\xb\x8d"
+ "\xb\xd4\x43\x58\x43\xaa\xf4\x3\x80\x97\x62\xd5"
+ "\xdf\x3c\x28\xaa\xee\x48\x4b\x55\x41\x1b\x31\x2"
+ "\xbe\xa0\x1c\xbd\xb7\x22\x2a\xe5\x53\x72\x73\x20"
+ "\x44\x4f\xe6\x1\x2b\x34\x33\x11\x7d\xfb\x10\xc1"
+ "\x66\x7c\xa6\xf4\x48\x36\x5e\x2\xda\x41\x4b\x3e"
+ "\xe7\x80\x17\x17\xce\xf1\x3e\x6a\x8e\x26\xf3\xb7"
+ "\x2b\x85\xd\x31\x8d\xba\x6c\x22\xb4\x28\x55\x7e"
+ "\x2a\x9e\x26\xf1\x3d\x21\xac\x65",
+
+ .ilen = 285 + 20 + 15,
+ .assoc = "\x00\x01\x02\x03\x04\x05\x06\x07"
+ "\x00\x03\x01\x01\x40",
+ .alen = 13,
+ .result = "285 bytes plaintext285 bytes plaintext285 bytes"
+ " plaintext285 bytes plaintext285 bytes plaintext285"
+ " bytes plaintext285 bytes plaintext285 bytes"
+ " plaintext285 bytes plaintext285 bytes plaintext285"
+ " bytes plaintext285 bytes plaintext285 bytes"
+ " plaintext285 bytes plaintext285 bytes plaintext",
+ .rlen = 285,
+ }
+};
+
+/*
* RSA test vectors. Borrowed from openSSL.
*/
static const struct akcipher_testvec rsa_tv_template[] = {
diff --git a/crypto/tls.c b/crypto/tls.c
new file mode 100644
index 0000000..1700fb9
--- /dev/null
+++ b/crypto/tls.c
@@ -0,0 +1,607 @@
+/*
+ * Copyright 2013 Freescale Semiconductor, Inc.
+ * Copyright 2017 NXP
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ */
+
+#include <crypto/internal/aead.h>
+#include <crypto/internal/hash.h>
+#include <crypto/internal/skcipher.h>
+#include <crypto/authenc.h>
+#include <crypto/null.h>
+#include <crypto/scatterwalk.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/rtnetlink.h>
+
+struct tls_instance_ctx {
+ struct crypto_ahash_spawn auth;
+ struct crypto_skcipher_spawn enc;
+};
+
+struct crypto_tls_ctx {
+ unsigned int reqoff;
+ struct crypto_ahash *auth;
+ struct crypto_skcipher *enc;
+ struct crypto_skcipher *null;
+};
+
+struct tls_request_ctx {
+ /*
+ * cryptlen holds the payload length in the case of encryption or
+ * payload_len + icv_len + padding_len in case of decryption
+ */
+ unsigned int cryptlen;
+ /* working space for partial results */
+ struct scatterlist tmp[2];
+ struct scatterlist cipher[2];
+ struct scatterlist dst[2];
+ char tail[];
+};
+
+struct async_op {
+ struct completion completion;
+ int err;
+};
+
+static void tls_async_op_done(struct crypto_async_request *req, int err)
+{
+ struct async_op *areq = req->data;
+
+ if (err == -EINPROGRESS)
+ return;
+
+ areq->err = err;
+ complete(&areq->completion);
+}
+
+static int crypto_tls_setkey(struct crypto_aead *tls, const u8 *key,
+ unsigned int keylen)
+{
+ struct crypto_tls_ctx *ctx = crypto_aead_ctx(tls);
+ struct crypto_ahash *auth = ctx->auth;
+ struct crypto_skcipher *enc = ctx->enc;
+ struct crypto_authenc_keys keys;
+ int err = -EINVAL;
+
+ if (crypto_authenc_extractkeys(&keys, key, keylen) != 0)
+ goto badkey;
+
+ crypto_ahash_clear_flags(auth, CRYPTO_TFM_REQ_MASK);
+ crypto_ahash_set_flags(auth, crypto_aead_get_flags(tls) &
+ CRYPTO_TFM_REQ_MASK);
+ err = crypto_ahash_setkey(auth, keys.authkey, keys.authkeylen);
+ crypto_aead_set_flags(tls, crypto_ahash_get_flags(auth) &
+ CRYPTO_TFM_RES_MASK);
+
+ if (err)
+ goto out;
+
+ crypto_skcipher_clear_flags(enc, CRYPTO_TFM_REQ_MASK);
+ crypto_skcipher_set_flags(enc, crypto_aead_get_flags(tls) &
+ CRYPTO_TFM_REQ_MASK);
+ err = crypto_skcipher_setkey(enc, keys.enckey, keys.enckeylen);
+ crypto_aead_set_flags(tls, crypto_skcipher_get_flags(enc) &
+ CRYPTO_TFM_RES_MASK);
+
+out:
+ return err;
+
+badkey:
+ crypto_aead_set_flags(tls, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ goto out;
+}
+
+/**
+ * crypto_tls_genicv - Calculate hmac digest for a TLS record
+ * @hash: (output) buffer to save the digest into
+ * @src: (input) scatterlist with the assoc and payload data
+ * @srclen: (input) size of the source buffer (assoclen + cryptlen)
+ * @req: (input) aead request
+ **/
+static int crypto_tls_genicv(u8 *hash, struct scatterlist *src,
+ unsigned int srclen, struct aead_request *req)
+{
+ struct crypto_aead *tls = crypto_aead_reqtfm(req);
+ struct crypto_tls_ctx *ctx = crypto_aead_ctx(tls);
+ struct tls_request_ctx *treq_ctx = aead_request_ctx(req);
+ struct async_op ahash_op;
+ struct ahash_request *ahreq = (void *)(treq_ctx->tail + ctx->reqoff);
+ unsigned int flags = CRYPTO_TFM_REQ_MAY_SLEEP;
+ int err = -EBADMSG;
+
+ /* Bail out if the request assoc len is 0 */
+ if (!req->assoclen)
+ return err;
+
+ init_completion(&ahash_op.completion);
+
+ /* the hash transform to be executed comes from the original request */
+ ahash_request_set_tfm(ahreq, ctx->auth);
+ /* prepare the hash request with input data and result pointer */
+ ahash_request_set_crypt(ahreq, src, hash, srclen);
+ /* set the notifier for when the async hash function returns */
+ ahash_request_set_callback(ahreq, aead_request_flags(req) & flags,
+ tls_async_op_done, &ahash_op);
+
+ /* Calculate the digest on the given data. The result is put in hash */
+ err = crypto_ahash_digest(ahreq);
+ if (err == -EINPROGRESS) {
+ err = wait_for_completion_interruptible(&ahash_op.completion);
+ if (!err)
+ err = ahash_op.err;
+ }
+
+ return err;
+}
+
+/**
+ * crypto_tls_gen_padicv - Calculate and pad hmac digest for a TLS record
+ * @hash: (output) buffer to save the digest and padding into
+ * @phashlen: (output) the size of digest + padding
+ * @req: (input) aead request
+ **/
+static int crypto_tls_gen_padicv(u8 *hash, unsigned int *phashlen,
+ struct aead_request *req)
+{
+ struct crypto_aead *tls = crypto_aead_reqtfm(req);
+ unsigned int hash_size = crypto_aead_authsize(tls);
+ unsigned int block_size = crypto_aead_blocksize(tls);
+ unsigned int srclen = req->cryptlen + hash_size;
+ unsigned int icvlen = req->cryptlen + req->assoclen;
+ unsigned int padlen;
+ int err;
+
+ err = crypto_tls_genicv(hash, req->src, icvlen, req);
+ if (err)
+ goto out;
+
+ /* add padding after digest */
+ padlen = block_size - (srclen % block_size);
+ memset(hash + hash_size, padlen - 1, padlen);
+
+ *phashlen = hash_size + padlen;
+out:
+ return err;
+}
+
+static int crypto_tls_copy_data(struct aead_request *req,
+ struct scatterlist *src,
+ struct scatterlist *dst,
+ unsigned int len)
+{
+ struct crypto_aead *tls = crypto_aead_reqtfm(req);
+ struct crypto_tls_ctx *ctx = crypto_aead_ctx(tls);
+ SKCIPHER_REQUEST_ON_STACK(skreq, ctx->null);
+
+ skcipher_request_set_tfm(skreq, ctx->null);
+ skcipher_request_set_callback(skreq, aead_request_flags(req),
+ NULL, NULL);
+ skcipher_request_set_crypt(skreq, src, dst, len, NULL);
+
+ return crypto_skcipher_encrypt(skreq);
+}
+
+static int crypto_tls_encrypt(struct aead_request *req)
+{
+ struct crypto_aead *tls = crypto_aead_reqtfm(req);
+ struct crypto_tls_ctx *ctx = crypto_aead_ctx(tls);
+ struct tls_request_ctx *treq_ctx = aead_request_ctx(req);
+ struct skcipher_request *skreq;
+ struct scatterlist *cipher = treq_ctx->cipher;
+ struct scatterlist *tmp = treq_ctx->tmp;
+ struct scatterlist *sg, *src, *dst;
+ unsigned int cryptlen, phashlen;
+ u8 *hash = treq_ctx->tail;
+ int err;
+
+ /*
+ * The hash result is saved at the beginning of the tls request ctx
+ * and is aligned as required by the hash transform. Enough space was
+ * allocated in crypto_tls_init_tfm to accommodate the difference. The
+ * requests themselves start later at treq_ctx->tail + ctx->reqoff so
+ * the result is not overwritten by the second (cipher) request.
+ */
+ hash = (u8 *)ALIGN((unsigned long)hash +
+ crypto_ahash_alignmask(ctx->auth),
+ crypto_ahash_alignmask(ctx->auth) + 1);
+
+ /*
+ * STEP 1: create ICV together with necessary padding
+ */
+ err = crypto_tls_gen_padicv(hash, &phashlen, req);
+ if (err)
+ return err;
+
+ /*
+ * STEP 2: Hash and padding are combined with the payload
+ * depending on the form it arrives. Scatter tables must have at least
+ * one page of data before chaining with another table and can't have
+ * an empty data page. The following code addresses these requirements.
+ *
+ * If the payload is empty, only the hash is encrypted, otherwise the
+ * payload scatterlist is merged with the hash. A special merging case
+ * is when the payload has only one page of data. In that case the
+ * payload page is moved to another scatterlist and prepared there for
+ * encryption.
+ */
+ if (req->cryptlen) {
+ src = scatterwalk_ffwd(tmp, req->src, req->assoclen);
+
+ sg_init_table(cipher, 2);
+ sg_set_buf(cipher + 1, hash, phashlen);
+
+ if (sg_is_last(src)) {
+ sg_set_page(cipher, sg_page(src), req->cryptlen,
+ src->offset);
+ src = cipher;
+ } else {
+ unsigned int rem_len = req->cryptlen;
+
+ for (sg = src; rem_len > sg->length; sg = sg_next(sg))
+ rem_len -= min(rem_len, sg->length);
+
+ sg_set_page(cipher, sg_page(sg), rem_len, sg->offset);
+ sg_chain(sg, 1, cipher);
+ }
+ } else {
+ sg_init_one(cipher, hash, phashlen);
+ src = cipher;
+ }
+
+ /**
+ * If src != dst copy the associated data from source to destination.
+ * In both cases fast-forward passed the associated data in the dest.
+ */
+ if (req->src != req->dst) {
+ err = crypto_tls_copy_data(req, req->src, req->dst,
+ req->assoclen);
+ if (err)
+ return err;
+ }
+ dst = scatterwalk_ffwd(treq_ctx->dst, req->dst, req->assoclen);
+
+ /*
+ * STEP 3: encrypt the frame and return the result
+ */
+ cryptlen = req->cryptlen + phashlen;
+
+ /*
+ * The hash and the cipher are applied at different times and their
+ * requests can use the same memory space without interference
+ */
+ skreq = (void *)(treq_ctx->tail + ctx->reqoff);
+ skcipher_request_set_tfm(skreq, ctx->enc);
+ skcipher_request_set_crypt(skreq, src, dst, cryptlen, req->iv);
+ skcipher_request_set_callback(skreq, aead_request_flags(req),
+ req->base.complete, req->base.data);
+ /*
+ * Apply the cipher transform. The result will be in req->dst when the
+ * asynchronuous call terminates
+ */
+ err = crypto_skcipher_encrypt(skreq);
+
+ return err;
+}
+
+static int crypto_tls_decrypt(struct aead_request *req)
+{
+ struct crypto_aead *tls = crypto_aead_reqtfm(req);
+ struct crypto_tls_ctx *ctx = crypto_aead_ctx(tls);
+ struct tls_request_ctx *treq_ctx = aead_request_ctx(req);
+ unsigned int cryptlen = req->cryptlen;
+ unsigned int hash_size = crypto_aead_authsize(tls);
+ unsigned int block_size = crypto_aead_blocksize(tls);
+ struct skcipher_request *skreq = (void *)(treq_ctx->tail + ctx->reqoff);
+ struct scatterlist *tmp = treq_ctx->tmp;
+ struct scatterlist *src, *dst;
+
+ u8 padding[255]; /* padding can be 0-255 bytes */
+ u8 pad_size;
+ u16 *len_field;
+ u8 *ihash, *hash = treq_ctx->tail;
+
+ int paderr = 0;
+ int err = -EINVAL;
+ int i;
+ struct async_op ciph_op;
+
+ /*
+ * Rule out bad packets. The input packet length must be at least one
+ * byte more than the hash_size
+ */
+ if (cryptlen <= hash_size || cryptlen % block_size)
+ goto out;
+
+ /*
+ * Step 1 - Decrypt the source. Fast-forward past the associated data
+ * to the encrypted data. The result will be overwritten in place so
+ * that the decrypted data will be adjacent to the associated data. The
+ * last step (computing the hash) will have it's input data already
+ * prepared and ready to be accessed at req->src.
+ */
+ src = scatterwalk_ffwd(tmp, req->src, req->assoclen);
+ dst = src;
+
+ init_completion(&ciph_op.completion);
+ skcipher_request_set_tfm(skreq, ctx->enc);
+ skcipher_request_set_callback(skreq, aead_request_flags(req),
+ tls_async_op_done, &ciph_op);
+ skcipher_request_set_crypt(skreq, src, dst, cryptlen, req->iv);
+ err = crypto_skcipher_decrypt(skreq);
+ if (err == -EINPROGRESS) {
+ err = wait_for_completion_interruptible(&ciph_op.completion);
+ if (!err)
+ err = ciph_op.err;
+ }
+ if (err)
+ goto out;
+
+ /*
+ * Step 2 - Verify padding
+ * Retrieve the last byte of the payload; this is the padding size.
+ */
+ cryptlen -= 1;
+ scatterwalk_map_and_copy(&pad_size, dst, cryptlen, 1, 0);
+
+ /* RFC recommendation for invalid padding size. */
+ if (cryptlen < pad_size + hash_size) {
+ pad_size = 0;
+ paderr = -EBADMSG;
+ }
+ cryptlen -= pad_size;
+ scatterwalk_map_and_copy(padding, dst, cryptlen, pad_size, 0);
+
+ /* Padding content must be equal with pad_size. We verify it all */
+ for (i = 0; i < pad_size; i++)
+ if (padding[i] != pad_size)
+ paderr = -EBADMSG;
+
+ /*
+ * Step 3 - Verify hash
+ * Align the digest result as required by the hash transform. Enough
+ * space was allocated in crypto_tls_init_tfm
+ */
+ hash = (u8 *)ALIGN((unsigned long)hash +
+ crypto_ahash_alignmask(ctx->auth),
+ crypto_ahash_alignmask(ctx->auth) + 1);
+ /*
+ * Two bytes at the end of the associated data make the length field.
+ * It must be updated with the length of the cleartext message before
+ * the hash is calculated.
+ */
+ len_field = sg_virt(req->src) + req->assoclen - 2;
+ cryptlen -= hash_size;
+ *len_field = htons(cryptlen);
+
+ /* This is the hash from the decrypted packet. Save it for later */
+ ihash = hash + hash_size;
+ scatterwalk_map_and_copy(ihash, dst, cryptlen, hash_size, 0);
+
+ /* Now compute and compare our ICV with the one from the packet */
+ err = crypto_tls_genicv(hash, req->src, cryptlen + req->assoclen, req);
+ if (!err)
+ err = memcmp(hash, ihash, hash_size) ? -EBADMSG : 0;
+
+ if (req->src != req->dst) {
+ err = crypto_tls_copy_data(req, req->src, req->dst, cryptlen +
+ req->assoclen);
+ if (err)
+ goto out;
+ }
+
+ /* return the first found error */
+ if (paderr)
+ err = paderr;
+
+out:
+ aead_request_complete(req, err);
+ return err;
+}
+
+static int crypto_tls_init_tfm(struct crypto_aead *tfm)
+{
+ struct aead_instance *inst = aead_alg_instance(tfm);
+ struct tls_instance_ctx *ictx = aead_instance_ctx(inst);
+ struct crypto_tls_ctx *ctx = crypto_aead_ctx(tfm);
+ struct crypto_ahash *auth;
+ struct crypto_skcipher *enc;
+ struct crypto_skcipher *null;
+ int err;
+
+ auth = crypto_spawn_ahash(&ictx->auth);
+ if (IS_ERR(auth))
+ return PTR_ERR(auth);
+
+ enc = crypto_spawn_skcipher(&ictx->enc);
+ err = PTR_ERR(enc);
+ if (IS_ERR(enc))
+ goto err_free_ahash;
+
+ null = crypto_get_default_null_skcipher2();
+ err = PTR_ERR(null);
+ if (IS_ERR(null))
+ goto err_free_skcipher;
+
+ ctx->auth = auth;
+ ctx->enc = enc;
+ ctx->null = null;
+
+ /*
+ * Allow enough space for two digests. The two digests will be compared
+ * during the decryption phase. One will come from the decrypted packet
+ * and the other will be calculated. For encryption, one digest is
+ * padded (up to a cipher blocksize) and chained with the payload
+ */
+ ctx->reqoff = ALIGN(crypto_ahash_digestsize(auth) +
+ crypto_ahash_alignmask(auth),
+ crypto_ahash_alignmask(auth) + 1) +
+ max(crypto_ahash_digestsize(auth),
+ crypto_skcipher_blocksize(enc));
+
+ crypto_aead_set_reqsize(tfm,
+ sizeof(struct tls_request_ctx) +
+ ctx->reqoff +
+ max_t(unsigned int,
+ crypto_ahash_reqsize(auth) +
+ sizeof(struct ahash_request),
+ crypto_skcipher_reqsize(enc) +
+ sizeof(struct skcipher_request)));
+
+ return 0;
+
+err_free_skcipher:
+ crypto_free_skcipher(enc);
+err_free_ahash:
+ crypto_free_ahash(auth);
+ return err;
+}
+
+static void crypto_tls_exit_tfm(struct crypto_aead *tfm)
+{
+ struct crypto_tls_ctx *ctx = crypto_aead_ctx(tfm);
+
+ crypto_free_ahash(ctx->auth);
+ crypto_free_skcipher(ctx->enc);
+ crypto_put_default_null_skcipher2();
+}
+
+static void crypto_tls_free(struct aead_instance *inst)
+{
+ struct tls_instance_ctx *ctx = aead_instance_ctx(inst);
+
+ crypto_drop_skcipher(&ctx->enc);
+ crypto_drop_ahash(&ctx->auth);
+ kfree(inst);
+}
+
+static int crypto_tls_create(struct crypto_template *tmpl, struct rtattr **tb)
+{
+ struct crypto_attr_type *algt;
+ struct aead_instance *inst;
+ struct hash_alg_common *auth;
+ struct crypto_alg *auth_base;
+ struct skcipher_alg *enc;
+ struct tls_instance_ctx *ctx;
+ const char *enc_name;
+ int err;
+
+ algt = crypto_get_attr_type(tb);
+ if (IS_ERR(algt))
+ return PTR_ERR(algt);
+
+ if ((algt->type ^ CRYPTO_ALG_TYPE_AEAD) & algt->mask)
+ return -EINVAL;
+
+ auth = ahash_attr_alg(tb[1], CRYPTO_ALG_TYPE_HASH,
+ CRYPTO_ALG_TYPE_AHASH_MASK |
+ crypto_requires_sync(algt->type, algt->mask));
+ if (IS_ERR(auth))
+ return PTR_ERR(auth);
+
+ auth_base = &auth->base;
+
+ enc_name = crypto_attr_alg_name(tb[2]);
+ err = PTR_ERR(enc_name);
+ if (IS_ERR(enc_name))
+ goto out_put_auth;
+
+ inst = kzalloc(sizeof(*inst) + sizeof(*ctx), GFP_KERNEL);
+ err = -ENOMEM;
+ if (!inst)
+ goto out_put_auth;
+
+ ctx = aead_instance_ctx(inst);
+
+ err = crypto_init_ahash_spawn(&ctx->auth, auth,
+ aead_crypto_instance(inst));
+ if (err)
+ goto err_free_inst;
+
+ crypto_set_skcipher_spawn(&ctx->enc, aead_crypto_instance(inst));
+ err = crypto_grab_skcipher(&ctx->enc, enc_name, 0,
+ crypto_requires_sync(algt->type,
+ algt->mask));
+ if (err)
+ goto err_drop_auth;
+
+ enc = crypto_spawn_skcipher_alg(&ctx->enc);
+
+ err = -ENAMETOOLONG;
+ if (snprintf(inst->alg.base.cra_name, CRYPTO_MAX_ALG_NAME,
+ "tls10(%s,%s)", auth_base->cra_name,
+ enc->base.cra_name) >= CRYPTO_MAX_ALG_NAME)
+ goto err_drop_enc;
+
+ if (snprintf(inst->alg.base.cra_driver_name, CRYPTO_MAX_ALG_NAME,
+ "tls10(%s,%s)", auth_base->cra_driver_name,
+ enc->base.cra_driver_name) >= CRYPTO_MAX_ALG_NAME)
+ goto err_drop_enc;
+
+ inst->alg.base.cra_flags = (auth_base->cra_flags |
+ enc->base.cra_flags) & CRYPTO_ALG_ASYNC;
+ inst->alg.base.cra_priority = enc->base.cra_priority * 10 +
+ auth_base->cra_priority;
+ inst->alg.base.cra_blocksize = enc->base.cra_blocksize;
+ inst->alg.base.cra_alignmask = auth_base->cra_alignmask |
+ enc->base.cra_alignmask;
+ inst->alg.base.cra_ctxsize = sizeof(struct crypto_tls_ctx);
+
+ inst->alg.ivsize = crypto_skcipher_alg_ivsize(enc);
+ inst->alg.chunksize = crypto_skcipher_alg_chunksize(enc);
+ inst->alg.maxauthsize = auth->digestsize;
+
+ inst->alg.init = crypto_tls_init_tfm;
+ inst->alg.exit = crypto_tls_exit_tfm;
+
+ inst->alg.setkey = crypto_tls_setkey;
+ inst->alg.encrypt = crypto_tls_encrypt;
+ inst->alg.decrypt = crypto_tls_decrypt;
+
+ inst->free = crypto_tls_free;
+
+ err = aead_register_instance(tmpl, inst);
+ if (err)
+ goto err_drop_enc;
+
+out:
+ crypto_mod_put(auth_base);
+ return err;
+
+err_drop_enc:
+ crypto_drop_skcipher(&ctx->enc);
+err_drop_auth:
+ crypto_drop_ahash(&ctx->auth);
+err_free_inst:
+ kfree(inst);
+out_put_auth:
+ goto out;
+}
+
+static struct crypto_template crypto_tls_tmpl = {
+ .name = "tls10",
+ .create = crypto_tls_create,
+ .module = THIS_MODULE,
+};
+
+static int __init crypto_tls_module_init(void)
+{
+ return crypto_register_template(&crypto_tls_tmpl);
+}
+
+static void __exit crypto_tls_module_exit(void)
+{
+ crypto_unregister_template(&crypto_tls_tmpl);
+}
+
+module_init(crypto_tls_module_init);
+module_exit(crypto_tls_module_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("TLS 1.0 record encryption");