linux/include/crypto/asym_tpm_subtype.h
Denis Kenzior f8c54e1ac4 KEYS: asym_tpm: extract key size & public key [ver #2]
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 <denkenz@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Marcel Holtmann <marcel@holtmann.org>
Reviewed-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: James Morris <james.morris@microsoft.com>
2018-10-26 09:30:46 +01:00

20 lines
521 B
C

// SPDX-License-Identifier: GPL-2.0
#ifndef _LINUX_ASYM_TPM_SUBTYPE_H
#define _LINUX_ASYM_TPM_SUBTYPE_H
#include <linux/keyctl.h>
struct tpm_key {
void *blob;
u32 blob_len;
uint16_t key_len; /* Size in bits of the key */
const void *pub_key; /* pointer inside blob to the public key bytes */
uint16_t pub_key_len; /* length of the public key */
};
struct tpm_key *tpm_key_create(const void *blob, uint32_t blob_len);
extern struct asymmetric_key_subtype asym_tpm_subtype;
#endif /* _LINUX_ASYM_TPM_SUBTYPE_H */