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| author | Mimi Zohar <zohar@linux.vnet.ibm.com> | 2010-11-23 18:55:35 -0500 |
|---|---|---|
| committer | James Morris <jmorris@namei.org> | 2010-11-29 08:55:29 +1100 |
| commit | 7e70cb4978507cf31d76b90e4cfb4c28cad87f0c (patch) | |
| tree | c5df493eef8d30dcb40d647b0528970eb4a391c6 /security/keys/Makefile | |
| parent | d00a1c72f7f4661212299e6cb132dfa58030bcdb (diff) | |
| download | linux-7e70cb4978507cf31d76b90e4cfb4c28cad87f0c.tar.gz linux-7e70cb4978507cf31d76b90e4cfb4c28cad87f0c.tar.bz2 linux-7e70cb4978507cf31d76b90e4cfb4c28cad87f0c.zip | |
keys: add new key-type encrypted
Define a new kernel key-type called 'encrypted'. Encrypted keys are kernel
generated random numbers, which are encrypted/decrypted with a 'trusted'
symmetric key. Encrypted keys are created/encrypted/decrypted in the kernel.
Userspace only ever sees/stores encrypted blobs.
Changelog:
- bug fix: replaced master-key rcu based locking with semaphore
(reported by David Howells)
- Removed memset of crypto_shash_digest() digest output
- Replaced verification of 'key-type:key-desc' using strcspn(), with
one based on string constants.
- Moved documentation to Documentation/keys-trusted-encrypted.txt
- Replace hash with shash (based on comments by David Howells)
- Make lengths/counts size_t where possible (based on comments by David Howells)
Could not convert most lengths, as crypto expects 'unsigned int'
(size_t: on 32 bit is defined as unsigned int, but on 64 bit is unsigned long)
- Add 'const' where possible (based on comments by David Howells)
- allocate derived_buf dynamically to support arbitrary length master key
(fixed by Roberto Sassu)
- wait until late_initcall for crypto libraries to be registered
- cleanup security/Kconfig
- Add missing 'update' keyword (reported/fixed by Roberto Sassu)
- Free epayload on failure to create key (reported/fixed by Roberto Sassu)
- Increase the data size limit (requested by Roberto Sassu)
- Crypto return codes are always 0 on success and negative on failure,
remove unnecessary tests.
- Replaced kzalloc() with kmalloc()
Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
Signed-off-by: David Safford <safford@watson.ibm.com>
Reviewed-by: Roberto Sassu <roberto.sassu@polito.it>
Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'security/keys/Makefile')
| -rw-r--r-- | security/keys/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/security/keys/Makefile b/security/keys/Makefile index fcb107020b4a..6c941050f573 100644 --- a/security/keys/Makefile +++ b/security/keys/Makefile @@ -14,6 +14,7 @@ obj-y := \ user_defined.o obj-$(CONFIG_TRUSTED_KEYS) += trusted_defined.o +obj-$(CONFIG_ENCRYPTED_KEYS) += encrypted_defined.o obj-$(CONFIG_KEYS_COMPAT) += compat.o obj-$(CONFIG_PROC_FS) += proc.o obj-$(CONFIG_SYSCTL) += sysctl.o |