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author | zhenwei pi <pizhenwei@bytedance.com> | 2022-03-02 11:39:16 +0800 |
---|---|---|
committer | Michael S. Tsirkin <mst@redhat.com> | 2022-03-28 16:52:58 -0400 |
commit | 59ca6c93387d325e96577d8bd4c23c78c1491c11 (patch) | |
tree | 112665281a3302674555c97622fbc8bb717bf962 /drivers/crypto/virtio/virtio_crypto_core.c | |
parent | 24e19590628b58578748eeaec8140bf9c9dc00d9 (diff) |
virtio-crypto: implement RSA algorithm
Support rsa & pkcs1pad(rsa,sha1) with priority 150.
Test with QEMU built-in backend, it works fine.
1, The self-test framework of crypto layer works fine in guest kernel
2, Test with Linux guest(with asym support), the following script
test(note that pkey_XXX is supported only in a newer version of keyutils):
- both public key & private key
- create/close session
- encrypt/decrypt/sign/verify basic driver operation
- also test with kernel crypto layer(pkey add/query)
All the cases work fine.
rm -rf *.der *.pem *.pfx
modprobe pkcs8_key_parser # if CONFIG_PKCS8_PRIVATE_KEY_PARSER=m
rm -rf /tmp/data
dd if=/dev/random of=/tmp/data count=1 bs=226
openssl req -nodes -x509 -newkey rsa:2048 -keyout key.pem -out cert.pem -subj "/C=CN/ST=BJ/L=HD/O=qemu/OU=dev/CN=qemu/emailAddress=qemu@qemu.org"
openssl pkcs8 -in key.pem -topk8 -nocrypt -outform DER -out key.der
openssl x509 -in cert.pem -inform PEM -outform DER -out cert.der
PRIV_KEY_ID=`cat key.der | keyctl padd asymmetric test_priv_key @s`
echo "priv key id = "$PRIV_KEY_ID
PUB_KEY_ID=`cat cert.der | keyctl padd asymmetric test_pub_key @s`
echo "pub key id = "$PUB_KEY_ID
keyctl pkey_query $PRIV_KEY_ID 0
keyctl pkey_query $PUB_KEY_ID 0
echo "Enc with priv key..."
keyctl pkey_encrypt $PRIV_KEY_ID 0 /tmp/data enc=pkcs1 >/tmp/enc.priv
echo "Dec with pub key..."
keyctl pkey_decrypt $PRIV_KEY_ID 0 /tmp/enc.priv enc=pkcs1 >/tmp/dec
cmp /tmp/data /tmp/dec
echo "Sign with priv key..."
keyctl pkey_sign $PRIV_KEY_ID 0 /tmp/data enc=pkcs1 hash=sha1 > /tmp/sig
echo "Verify with pub key..."
keyctl pkey_verify $PRIV_KEY_ID 0 /tmp/data /tmp/sig enc=pkcs1 hash=sha1
echo "Enc with pub key..."
keyctl pkey_encrypt $PUB_KEY_ID 0 /tmp/data enc=pkcs1 >/tmp/enc.pub
echo "Dec with priv key..."
keyctl pkey_decrypt $PRIV_KEY_ID 0 /tmp/enc.pub enc=pkcs1 >/tmp/dec
cmp /tmp/data /tmp/dec
echo "Verify with pub key..."
keyctl pkey_verify $PUB_KEY_ID 0 /tmp/data /tmp/sig enc=pkcs1 hash=sha1
[1 compiling warning during development]
Reported-by: kernel test robot <lkp@intel.com>
Co-developed-by: lei he <helei.sig11@bytedance.com>
Signed-off-by: lei he <helei.sig11@bytedance.com>
Signed-off-by: zhenwei pi <pizhenwei@bytedance.com>
Link: https://lore.kernel.org/r/20220302033917.1295334-4-pizhenwei@bytedance.com
Reviewed-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Nathan Chancellor <nathan@kernel.org> #Kconfig tweaks
Link: https://lore.kernel.org/r/20220308205309.2192502-1-nathan@kernel.org
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers/crypto/virtio/virtio_crypto_core.c')
-rw-r--r-- | drivers/crypto/virtio/virtio_crypto_core.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/crypto/virtio/virtio_crypto_core.c b/drivers/crypto/virtio/virtio_crypto_core.c index 8e977b7627cb..c6f482db0bc0 100644 --- a/drivers/crypto/virtio/virtio_crypto_core.c +++ b/drivers/crypto/virtio/virtio_crypto_core.c @@ -297,6 +297,7 @@ static int virtcrypto_probe(struct virtio_device *vdev) u32 mac_algo_l = 0; u32 mac_algo_h = 0; u32 aead_algo = 0; + u32 akcipher_algo = 0; u32 crypto_services = 0; if (!virtio_has_feature(vdev, VIRTIO_F_VERSION_1)) @@ -348,6 +349,9 @@ static int virtcrypto_probe(struct virtio_device *vdev) mac_algo_h, &mac_algo_h); virtio_cread_le(vdev, struct virtio_crypto_config, aead_algo, &aead_algo); + if (crypto_services & (1 << VIRTIO_CRYPTO_SERVICE_AKCIPHER)) + virtio_cread_le(vdev, struct virtio_crypto_config, + akcipher_algo, &akcipher_algo); /* Add virtio crypto device to global table */ err = virtcrypto_devmgr_add_dev(vcrypto); @@ -374,7 +378,7 @@ static int virtcrypto_probe(struct virtio_device *vdev) vcrypto->mac_algo_h = mac_algo_h; vcrypto->hash_algo = hash_algo; vcrypto->aead_algo = aead_algo; - + vcrypto->akcipher_algo = akcipher_algo; dev_info(&vdev->dev, "max_queues: %u, max_cipher_key_len: %u, max_auth_key_len: %u, max_size 0x%llx\n", |