user/sven/linux.git/include/crypto, branch v4.20.12

KEYS: asym_tpm: extract key size & public key [ver #2]

2018-10-26T08:30:46Z

The parsed BER/DER blob obtained from user space contains a TPM_Key structure. This structure has some information about the key as well as the public key portion. This patch extracts this information for future use. Signed-off-by: Denis Kenzior Signed-off-by: David Howells Tested-by: Marcel Holtmann Reviewed-by: Marcel Holtmann Signed-off-by: James Morris

KEYS: asym_tpm: add skeleton for asym_tpm [ver #2]

2018-10-26T08:30:46Z

This patch adds the basic skeleton for the asym_tpm asymmetric key subtype. Signed-off-by: Denis Kenzior Signed-off-by: David Howells Tested-by: Marcel Holtmann Reviewed-by: Marcel Holtmann Signed-off-by: James Morris

KEYS: Allow the public_key struct to hold a private key [ver #2]

2018-10-26T08:30:46Z

Put a flag in the public_key struct to indicate if the structure is holding a private key. The private key must be held ASN.1 encoded in the format specified in RFC 3447 A.1.2. This is the form required by crypto/rsa.c. The software encryption subtype's verification and query functions then need to select the appropriate crypto function to set the key. Signed-off-by: David Howells Tested-by: Marcel Holtmann Reviewed-by: Marcel Holtmann Reviewed-by: Denis Kenzior Tested-by: Denis Kenzior Signed-off-by: James Morris

KEYS: Provide missing asymmetric key subops for new key type ops [ver #2]

2018-10-26T08:30:46Z

Provide the missing asymmetric key subops for new key type ops. This include query, encrypt, decrypt and create signature. Verify signature already exists. Also provided are accessor functions for this: int query_asymmetric_key(const struct key *key, struct kernel_pkey_query *info); int encrypt_blob(struct kernel_pkey_params *params, const void *data, void *enc); int decrypt_blob(struct kernel_pkey_params *params, const void *enc, void *data); int create_signature(struct kernel_pkey_params *params, const void *data, void *enc); The public_key_signature struct gains an encoding field to carry the encoding for verify_signature(). Signed-off-by: David Howells Tested-by: Marcel Holtmann Reviewed-by: Marcel Holtmann Reviewed-by: Denis Kenzior Tested-by: Denis Kenzior Signed-off-by: James Morris

crypto/morus(640,1280) - make crypto_...-algs static

2018-10-05T02:22:48Z

sparse complains thusly: CHECK arch/x86/crypto/morus640-sse2-glue.c arch/x86/crypto/morus640-sse2-glue.c:38:1: warning: symbol 'crypto_morus640_sse2_algs' was not declared. Should it be static? CHECK arch/x86/crypto/morus1280-sse2-glue.c arch/x86/crypto/morus1280-sse2-glue.c:38:1: warning: symbol 'crypto_morus1280_sse2_algs' was not declared. Should it be static? CHECK arch/x86/crypto/morus1280-avx2-glue.c arch/x86/crypto/morus1280-avx2-glue.c:38:1: warning: symbol 'crypto_morus1280_avx2_algs' was not declared. Should it be static? and sparse is correct - these don't need to be global and polluting the namespace. Signed-off-by: Valdis Kletnieks Acked-by: Ondrej Mosnacek Signed-off-by: Herbert Xu

crypto: user - Implement a generic crypto statistics

2018-09-28T04:46:25Z

This patch implement a generic way to get statistics about all crypto usages. Signed-off-by: Corentin Labbe Signed-off-by: Herbert Xu

crypto: skcipher - Remove SKCIPHER_REQUEST_ON_STACK()

2018-09-28T04:46:09Z

Now that all the users of the VLA-generating SKCIPHER_REQUEST_ON_STACK() macro have been moved to SYNC_SKCIPHER_REQUEST_ON_STACK(), we can remove the former. Signed-off-by: Kees Cook Signed-off-by: Herbert Xu

crypto: null - Remove VLA usage of skcipher

2018-09-28T04:46:08Z

In the quest to remove all stack VLA usage from the kernel[1], this replaces struct crypto_skcipher and SKCIPHER_REQUEST_ON_STACK() usage with struct crypto_sync_skcipher and SYNC_SKCIPHER_REQUEST_ON_STACK(), which uses a fixed stack size. [1] https://lkml.kernel.org/r/CA+55aFzCG-zNmZwX4A2FQpadafLfEzK6CC=qPXydAacU1RqZWA@mail.gmail.com Signed-off-by: Kees Cook Signed-off-by: Herbert Xu

crypto: skcipher - Introduce crypto_sync_skcipher

2018-09-28T04:46:06Z

In preparation for removal of VLAs due to skcipher requests on the stack via SKCIPHER_REQUEST_ON_STACK() usage, this introduces the infrastructure for the "sync skcipher" tfm, which is for handling the on-stack cases of skcipher, which are always non-ASYNC and have a known limited request size. The crypto API additions: struct crypto_sync_skcipher (wrapper for struct crypto_skcipher) crypto_alloc_sync_skcipher() crypto_free_sync_skcipher() crypto_sync_skcipher_setkey() crypto_sync_skcipher_get_flags() crypto_sync_skcipher_set_flags() crypto_sync_skcipher_clear_flags() crypto_sync_skcipher_blocksize() crypto_sync_skcipher_ivsize() crypto_sync_skcipher_reqtfm() skcipher_request_set_sync_tfm() SYNC_SKCIPHER_REQUEST_ON_STACK() (with tfm type check) Signed-off-by: Kees Cook Reviewed-by: Ard Biesheuvel Signed-off-by: Herbert Xu

crypto: chacha20 - Fix chacha20_block() keystream alignment (again)

2018-09-21T05:24:50Z

In commit 9f480faec58c ("crypto: chacha20 - Fix keystream alignment for chacha20_block()"), I had missed that chacha20_block() can be called directly on the buffer passed to get_random_bytes(), which can have any alignment. So, while my commit didn't break anything, it didn't fully solve the alignment problems. Revert my solution and just update chacha20_block() to use put_unaligned_le32(), so the output buffer need not be aligned. This is simpler, and on many CPUs it's the same speed. But, I kept the 'tmp' buffers in extract_crng_user() and _get_random_bytes() 4-byte aligned, since that alignment is actually needed for _crng_backtrack_protect() too. Reported-by: Stephan Müller Cc: Theodore Ts'o Signed-off-by: Eric Biggers Signed-off-by: Herbert Xu