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/linux/drivers/virt/coco/efi_secret/
H A Defi_secret.c10 * DOC: efi_secret: Allow reading EFI confidential computing (coco) secret area
15 * In it, a file is created for each secret entry. The name of each such file
16 * is the GUID of the secret entry, and its content is the secret data.
39 * Structure of the EFI secret area
44 * 0 16 Secret table header GUID (must be 1e74f542-71dd-4d66-963e-ef4287ff173b)
45 * 16 4 Length of bytes of the entire secret area
47 * 20 16 First secret entry's GUID
48 * 36 4 First secret entry's length in bytes (= 16 + 4 + x)
49 * 40 x First secret entry's data
51 * 40+x 16 Second secret entry's GUID
[all …]
H A DKconfig3 tristate "EFI secret area securityfs support"
8 This is a driver for accessing the EFI secret area via securityfs.
9 The EFI secret area is a memory area designated by the firmware for
10 confidential computing secret injection (for example for AMD SEV
13 a file wipes the secret from memory).
/linux/Documentation/security/secrets/
H A Dcoco.rst7 This document describes how Confidential Computing secret injection is handled
18 secret injection is performed early in the VM launch process, before the
25 Secret data flow
28 The guest firmware may reserve a designated memory area for secret injection,
35 During the VM's launch, the virtual machine manager may inject a secret to that
38 Guest Owner secret data should be a GUIDed table of secret values; the binary
40 "Structure of the EFI secret area".
42 On kernel start, the kernel's EFI driver saves the location of the secret area
44 Later it checks if the secret area is populated: it maps the area and checks
46 (``1e74f542-71dd-4d66-963e-ef4287ff173b``). If the secret area is populated,
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/linux/include/crypto/
H A Dcurve25519.h22 const u8 secret[at_least CURVE25519_KEY_SIZE],
27 const u8 secret[at_least CURVE25519_KEY_SIZE]);
30 curve25519_clamp_secret(u8 secret[at_least CURVE25519_KEY_SIZE]) in curve25519_clamp_secret()
32 secret[0] &= 248; in curve25519_clamp_secret()
33 secret[31] = (secret[31] & 127) | 64; in curve25519_clamp_secret()
37 curve25519_generate_secret(u8 secret[at_least CURVE25519_KEY_SIZE]) in curve25519_generate_secret()
39 get_random_bytes_wait(secret, CURVE25519_KEY_SIZE); in curve25519_generate_secret()
40 curve25519_clamp_secret(secret); in curve25519_generate_secret()
H A Dkpp.h58 * store the secret private key along with parameters.
64 * @compute_shared_secret: Function compute the shared secret as defined by
264 * struct kpp_secret - small header for packing secret buffer
266 * @type: define type of secret. Each kpp type will define its own
267 * @len: specify the len of the secret, include the header, that
319 * Function invokes the specific kpp operation for computing the shared secret
/linux/Documentation/ABI/testing/
H A Dsecurityfs-secrets-coco9 platforms (such as AMD SEV and SEV-ES) for secret injection by
15 secret appears as a file under <securityfs>/secrets/coco,
18 if the EFI secret area is populated.
21 Reading the file returns the content of secret entry.
22 Unlinking the file overwrites the secret data with zeroes and
23 removes the entry from the filesystem. A secret cannot be read
35 Reading the secret data by reading a file::
38 the-content-of-the-secret-data
40 Wiping a secret by unlinking a file::
51 the EFI secret area".
/linux/lib/crypto/
H A Dcurve25519.c26 const u8 secret[CURVE25519_KEY_SIZE], in curve25519_arch()
29 curve25519_generic(mypublic, secret, basepoint); in curve25519_arch()
33 const u8 secret[CURVE25519_KEY_SIZE]) in curve25519_base_arch()
35 curve25519_generic(pub, secret, curve25519_base_point); in curve25519_base_arch()
41 const u8 secret[CURVE25519_KEY_SIZE], in curve25519()
44 curve25519_arch(mypublic, secret, basepoint); in curve25519()
52 const u8 secret[CURVE25519_KEY_SIZE]) in curve25519_generate_public()
54 if (unlikely(!crypto_memneq(secret, curve25519_null_point, in curve25519_generate_public()
57 curve25519_base_arch(pub, secret); in curve25519_generate_public()
/linux/crypto/
H A Decdh_helper.c37 struct kpp_secret secret = { in crypto_ecdh_encode_key() local
48 ptr = ecdh_pack_data(ptr, &secret, sizeof(secret)); in crypto_ecdh_encode_key()
60 struct kpp_secret secret; in crypto_ecdh_decode_key() local
65 ptr = ecdh_unpack_data(&secret, ptr, sizeof(secret)); in crypto_ecdh_decode_key()
66 if (secret.type != CRYPTO_KPP_SECRET_TYPE_ECDH) in crypto_ecdh_decode_key()
69 if (unlikely(len < secret.len)) in crypto_ecdh_decode_key()
73 if (secret.len != crypto_ecdh_key_len(params)) in crypto_ecdh_decode_key()
H A Ddh_helper.c44 struct kpp_secret secret = { in crypto_dh_encode_key() local
52 ptr = dh_pack_data(ptr, end, &secret, sizeof(secret)); in crypto_dh_encode_key()
69 struct kpp_secret secret; in __crypto_dh_decode_key() local
74 ptr = dh_unpack_data(&secret, ptr, sizeof(secret)); in __crypto_dh_decode_key()
75 if (secret.type != CRYPTO_KPP_SECRET_TYPE_DH) in __crypto_dh_decode_key()
81 if (secret.len != crypto_dh_key_len(params)) in __crypto_dh_decode_key()
/linux/fs/crypto/
H A Dkeyring.c43 static void wipe_master_key_secret(struct fscrypt_master_key_secret *secret) in wipe_master_key_secret() argument
45 memzero_explicit(secret, sizeof(*secret)); in wipe_master_key_secret()
60 * The master key secret and any embedded subkeys should have already in fscrypt_free_master_key()
426 * Allocate a new fscrypt_master_key, transfer the given secret over to it, and
430 struct fscrypt_master_key_secret *secret, in add_new_master_key() argument
457 move_master_key_secret(&mk->mk_secret, secret); in add_new_master_key()
475 struct fscrypt_master_key_secret *secret) in add_existing_master_key() argument
508 move_master_key_secret(&mk->mk_secret, secret); in add_existing_master_key()
516 struct fscrypt_master_key_secret *secret, in do_add_master_key() argument
530 err = add_new_master_key(sb, secret, mk_spec); in do_add_master_key()
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/linux/include/net/
H A Dhotdata.h53 #define inet_ehash_secret net_hotdata.tcp_protocol.secret
54 #define udp_ehash_secret net_hotdata.udp_protocol.secret
55 #define inet6_ehash_secret net_hotdata.tcpv6_protocol.secret
56 #define tcp_ipv6_hash_secret net_hotdata.tcpv6_offload.secret
57 #define udp6_ehash_secret net_hotdata.udpv6_protocol.secret
58 #define udp_ipv6_hash_secret net_hotdata.udpv6_offload.secret
H A Dprotocol.h49 u32 secret; member
63 u32 secret; member
73 u32 secret; member
/linux/net/ceph/
H A Dauth_x.c57 static int ceph_x_encrypt(struct ceph_crypto_key *secret, void *buf, in ceph_x_encrypt() argument
67 ret = ceph_crypt(secret, true, buf + sizeof(u32), buf_len - sizeof(u32), in ceph_x_encrypt()
77 static int __ceph_x_decrypt(struct ceph_crypto_key *secret, void *p, in __ceph_x_decrypt() argument
84 ret = ceph_crypt(secret, false, p, ciphertext_len, ciphertext_len, in __ceph_x_decrypt()
97 static int ceph_x_decrypt(struct ceph_crypto_key *secret, void **p, void *end) in ceph_x_decrypt() argument
105 ret = __ceph_x_decrypt(secret, *p, ciphertext_len); in ceph_x_decrypt()
161 struct ceph_crypto_key *secret, in process_one_ticket() argument
197 ret = ceph_x_decrypt(secret, p, end); in process_one_ticket()
271 struct ceph_crypto_key *secret, in ceph_x_proc_ticket_reply() argument
286 ret = process_one_ticket(ac, secret, p, end); in ceph_x_proc_ticket_reply()
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/linux/security/keys/
H A Ddh.c136 uint8_t *secret; in __keyctl_dh_compute() local
201 secret = kmalloc(secretlen, GFP_KERNEL); in __keyctl_dh_compute()
202 if (!secret) { in __keyctl_dh_compute()
206 ret = crypto_dh_encode_key(secret, secretlen, &dh_inputs); in __keyctl_dh_compute()
216 ret = crypto_kpp_set_secret(tfm, secret, secretlen); in __keyctl_dh_compute()
268 * Concatenate SP800-56A otherinfo past DH shared secret -- the in __keyctl_dh_compute()
269 * input to the KDF is (DH shared secret || otherinfo) in __keyctl_dh_compute()
292 kfree_sensitive(secret); in __keyctl_dh_compute()
/linux/net/bluetooth/
H A Decdh_helper.c40 * secret: memory where the ecdh computed shared secret will be saved.
45 u8 secret[32]) in compute_ecdh_secret()
67 sg_init_one(&dst, secret, 32); in compute_ecdh_secret()
75 pr_err("alg: ecdh: compute shared secret failed. err %d\n", in compute_ecdh_secret()
80 swap_digits((u64 *)secret, (u64 *)tmp, 4); in compute_ecdh_secret()
81 memcpy(secret, tmp, 32); in compute_ecdh_secret()
/linux/drivers/s390/char/
H A Duvdevice.c244 * uvio_add_secret() - Perform an Add Secret UVC
248 * uvio_add_secret() performs the Add Secret Ultravisor Call.
256 * The argument has to point to an Add Secret Request Control Block
261 * If the Add Secret UV facility is not present, UV will return
304 * Do the actual secret list creation. Calls the list secrets UVC until there
339 * uvio_list_secrets() - Perform a List Secret UVC
343 * uvio_list_secrets() performs the List Secret Ultravisor Call. It verifies
385 * uvio_lock_secrets() - Perform a Lock Secret Store UVC
389 * uvio_lock_secrets() performs the Lock Secret Store Ultravisor Call. It
391 * After this call was dispatched successfully every following Add Secret UVC
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/linux/lib/crypto/arm/
H A Dcurve25519.h18 const u8 secret[CURVE25519_KEY_SIZE],
36 const u8 secret[CURVE25519_KEY_SIZE]) in curve25519_base_arch()
38 curve25519_arch(pub, secret, curve25519_base_point); in curve25519_base_arch()
/linux/Documentation/security/keys/
H A Decryptfs.rst70 into the '/secret' directory::
73 ecryptfs_cipher=aes,ecryptfs_key_bytes=32 /secret /secret
/linux/drivers/nvme/common/
H A Dauth.c164 struct nvme_dhchap_key *nvme_auth_extract_key(unsigned char *secret, in nvme_auth_extract_key() argument
171 size_t allocated_len = strlen(secret); in nvme_auth_extract_key()
173 /* Secret might be affixed with a ':' */ in nvme_auth_extract_key()
174 p = strrchr(secret, ':'); in nvme_auth_extract_key()
176 allocated_len = p - secret; in nvme_auth_extract_key()
181 key_len = base64_decode(secret, allocated_len, key->key, true, BASE64_STD); in nvme_auth_extract_key()
441 int nvme_auth_generate_key(u8 *secret, struct nvme_dhchap_key **ret_key) in nvme_auth_generate_key() argument
446 if (!secret) { in nvme_auth_generate_key()
451 if (sscanf(secret, "DHHC-1:%hhd:%*s:", &key_hash) != 1) in nvme_auth_generate_key()
454 /* Pass in the secret without the 'DHHC-1:XX:' prefix */ in nvme_auth_generate_key()
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/linux/Documentation/security/tpm/
H A Dtpm-security.rst74 encryption to prevent the loss of secret information.
80 asymmetric secret must be established which must also be unknown to
108 know there's an interposer on your system (and that any secret used
135 authorization secret, but for a lot of kernel operations that is well
173 it's name and the EK public key can be used to encrypt a secret using
175 will only recover the secret if the binding between the TPM, the EK
/linux/lib/crypto/powerpc/
H A Dcurve25519.h176 const u8 secret[CURVE25519_KEY_SIZE], in curve25519_arch()
179 curve25519_fe51(mypublic, secret, basepoint); in curve25519_arch()
183 const u8 secret[CURVE25519_KEY_SIZE]) in curve25519_base_arch()
185 curve25519_fe51(pub, secret, curve25519_base_point); in curve25519_base_arch()
/linux/drivers/net/wireguard/
H A Dnoise.c349 u8 secret[BLAKE2S_HASH_SIZE]; in kdf() local
359 /* Extract entropy from data into secret */ in kdf()
360 hmac(secret, data, chaining_key, data_len, NOISE_HASH_LEN); in kdf()
365 /* Expand first key: key = secret, data = 0x1 */ in kdf()
367 hmac(output, output, secret, 1, BLAKE2S_HASH_SIZE); in kdf()
373 /* Expand second key: key = secret, data = first-key || 0x2 */ in kdf()
375 hmac(output, output, secret, BLAKE2S_HASH_SIZE + 1, BLAKE2S_HASH_SIZE); in kdf()
381 /* Expand third key: key = secret, data = second-key || 0x3 */ in kdf()
383 hmac(output, output, secret, BLAKE2S_HASH_SIZE + 1, BLAKE2S_HASH_SIZE); in kdf()
388 memzero_explicit(secret, BLAKE2S_HASH_SIZE); in kdf()
/linux/include/linux/
H A Dnvme-auth.h28 struct nvme_dhchap_key *nvme_auth_extract_key(unsigned char *secret,
34 int nvme_auth_generate_key(u8 *secret, struct nvme_dhchap_key **ret_key);
/linux/Documentation/translations/zh_CN/process/
H A Dmaintainer-pgp-guide.rst145 运行命令来验证，例如： ``gpg --list-secret-keys``
195 $ gpg --export-secret-key [fpr] | paperkey -o /tmp/key-backup.txt
292 现在，如果你发出命令 ``--list-secret-keys`` ，它将显示证书密钥丢
295 $ gpg --list-secret-keys
412 Secret subkeys are available.
471 如果你现在执行 ``--list-secret-keys`` ，你将看到输出中存在细微的差异::
473 $ gpg --list-secret-keys
514 $ gpg --list-secret-keys
/linux/drivers/gpu/drm/nouveau/nvkm/engine/
H A Dfalcon.c141 falcon->secret = (falcon->addr == 0x087000) ? 1 : 0; in nvkm_falcon_oneinit()
145 falcon->secret = (caps & 0x00000030) >> 4; in nvkm_falcon_oneinit()
153 nvkm_debug(subdev, "secret level: %d\n", falcon->secret); in nvkm_falcon_oneinit()
171 if (falcon->secret && falcon->version < 4) { in nvkm_falcon_init()

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