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author | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2013-11-25 05:57:23 -0200 |
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committer | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2013-11-25 05:57:23 -0200 |
commit | 2d913b33066b19294e6ea3e5caed196751ecf17e (patch) | |
tree | 7b0b2d8571a708b3f036ed99e019264bb19aa4ab /crypto/asymmetric_keys/public_key.c | |
parent | 865ed240c10f285120a40a9d22893531644b71b9 (diff) | |
parent | cc86779540677b99e6adc6ddbe9be3bded3cdd1e (diff) | |
download | linux-crypto-2d913b33066b19294e6ea3e5caed196751ecf17e.tar.gz linux-crypto-2d913b33066b19294e6ea3e5caed196751ecf17e.zip |
Merge tag 'v3.13-rc1' into patchwork
Linux 3.13-rc1
* tag 'v3.13-rc1': (11465 commits)
Linux 3.13-rc1
ALSA: hda - Set current_headset_type to ALC_HEADSET_TYPE_ENUM (janitorial)
ALSA: hda - Provide missing pin configs for VAIO with ALC260
mm: place page->pmd_huge_pte to right union
MAINTAINERS: add keyboard driver to Hyper-V file list
x86, mm: do not leak page->ptl for pmd page tables
ipc,shm: correct error return value in shmctl (SHM_UNLOCK)
mm, mempolicy: silence gcc warning
block/partitions/efi.c: fix bound check
ARM: drivers/rtc/rtc-at91rm9200.c: disable interrupts at shutdown
mm: hugetlbfs: fix hugetlbfs optimization
kernel: remove CONFIG_USE_GENERIC_SMP_HELPERS cleanly
ipc,shm: fix shm_file deletion races
mm: thp: give transparent hugepage code a separate copy_page
checkpatch: fix "Use of uninitialized value" warnings
configfs: fix race between dentry put and lookup
gso: handle new frag_list of frags GRO packets
GFS2: Fix ref count bug relating to atomic_open
genetlink: fix genl_set_err() group ID
genetlink: fix genlmsg_multicast() bug
...
Diffstat (limited to 'crypto/asymmetric_keys/public_key.c')
-rw-r--r-- | crypto/asymmetric_keys/public_key.c | 66 |
1 files changed, 43 insertions, 23 deletions
diff --git a/crypto/asymmetric_keys/public_key.c b/crypto/asymmetric_keys/public_key.c index cb2e2918..97eb0019 100644 --- a/crypto/asymmetric_keys/public_key.c +++ b/crypto/asymmetric_keys/public_key.c @@ -22,29 +22,25 @@ MODULE_LICENSE("GPL"); -const char *const pkey_algo[PKEY_ALGO__LAST] = { +const char *const pkey_algo_name[PKEY_ALGO__LAST] = { [PKEY_ALGO_DSA] = "DSA", [PKEY_ALGO_RSA] = "RSA", }; -EXPORT_SYMBOL_GPL(pkey_algo); +EXPORT_SYMBOL_GPL(pkey_algo_name); -const char *const pkey_hash_algo[PKEY_HASH__LAST] = { - [PKEY_HASH_MD4] = "md4", - [PKEY_HASH_MD5] = "md5", - [PKEY_HASH_SHA1] = "sha1", - [PKEY_HASH_RIPE_MD_160] = "rmd160", - [PKEY_HASH_SHA256] = "sha256", - [PKEY_HASH_SHA384] = "sha384", - [PKEY_HASH_SHA512] = "sha512", - [PKEY_HASH_SHA224] = "sha224", +const struct public_key_algorithm *pkey_algo[PKEY_ALGO__LAST] = { +#if defined(CONFIG_PUBLIC_KEY_ALGO_RSA) || \ + defined(CONFIG_PUBLIC_KEY_ALGO_RSA_MODULE) + [PKEY_ALGO_RSA] = &RSA_public_key_algorithm, +#endif }; -EXPORT_SYMBOL_GPL(pkey_hash_algo); +EXPORT_SYMBOL_GPL(pkey_algo); -const char *const pkey_id_type[PKEY_ID_TYPE__LAST] = { +const char *const pkey_id_type_name[PKEY_ID_TYPE__LAST] = { [PKEY_ID_PGP] = "PGP", [PKEY_ID_X509] = "X509", }; -EXPORT_SYMBOL_GPL(pkey_id_type); +EXPORT_SYMBOL_GPL(pkey_id_type_name); /* * Provide a part of a description of the key for /proc/keys. @@ -56,7 +52,7 @@ static void public_key_describe(const struct key *asymmetric_key, if (key) seq_printf(m, "%s.%s", - pkey_id_type[key->id_type], key->algo->name); + pkey_id_type_name[key->id_type], key->algo->name); } /* @@ -78,21 +74,45 @@ EXPORT_SYMBOL_GPL(public_key_destroy); /* * Verify a signature using a public key. */ -static int public_key_verify_signature(const struct key *key, - const struct public_key_signature *sig) +int public_key_verify_signature(const struct public_key *pk, + const struct public_key_signature *sig) { - const struct public_key *pk = key->payload.data; + const struct public_key_algorithm *algo; + + BUG_ON(!pk); + BUG_ON(!pk->mpi[0]); + BUG_ON(!pk->mpi[1]); + BUG_ON(!sig); + BUG_ON(!sig->digest); + BUG_ON(!sig->mpi[0]); + + algo = pk->algo; + if (!algo) { + if (pk->pkey_algo >= PKEY_ALGO__LAST) + return -ENOPKG; + algo = pkey_algo[pk->pkey_algo]; + if (!algo) + return -ENOPKG; + } - if (!pk->algo->verify_signature) + if (!algo->verify_signature) return -ENOTSUPP; - if (sig->nr_mpi != pk->algo->n_sig_mpi) { + if (sig->nr_mpi != algo->n_sig_mpi) { pr_debug("Signature has %u MPI not %u\n", - sig->nr_mpi, pk->algo->n_sig_mpi); + sig->nr_mpi, algo->n_sig_mpi); return -EINVAL; } - return pk->algo->verify_signature(pk, sig); + return algo->verify_signature(pk, sig); +} +EXPORT_SYMBOL_GPL(public_key_verify_signature); + +static int public_key_verify_signature_2(const struct key *key, + const struct public_key_signature *sig) +{ + const struct public_key *pk = key->payload.data; + return public_key_verify_signature(pk, sig); } /* @@ -103,6 +123,6 @@ struct asymmetric_key_subtype public_key_subtype = { .name = "public_key", .describe = public_key_describe, .destroy = public_key_destroy, - .verify_signature = public_key_verify_signature, + .verify_signature = public_key_verify_signature_2, }; EXPORT_SYMBOL_GPL(public_key_subtype); |