函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:security\keys\trusted-keys\trusted_tpm1.c Create Date:2022-07-27 20:04:58
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：Have the TPM seal(encrypt) the symmetric key

函数原型：static int key_seal(struct trusted_key_payload *p, struct trusted_key_options *o)

返回类型：int

参数：

类型参数名称
struct trusted_key_payload *p
struct trusted_key_options *o
662  ret等于tpm_buf_init( & tb, 0, 0)
663  如果ret则返回:ret
667  key[key_len]等于migratable
669  ret等于Have the TPM seal(encrypt) the trusted key, possibly based on* Platform Configuration Registers (PCRs). AUTH1 for sealing key.
672  如果ret小于0则打印信息("trusted_key: srkseal failed (%d)\n", ret)
675  tpm_buf_destroy( & tb)
676  返回:ret
调用者
名称描述
trusted_instantiaterusted_instantiate - create a new trusted key* Unseal an existing trusted blob or, for a new key, get a* random key, then seal and create a trusted key-type key,* adding it to the specified keyring.* On success, return 0. Otherwise return errno.
trusted_updaterusted_update - reseal an existing key with new PCR values