Asymmetric (public-key cryptographic) key type

depends

is selected by

CONFIG_ASYMMETRIC_PUBLIC_KEY_SUBTYPE
CONFIG_ASYMMETRIC_TPM_KEY_SUBTYPE
CONFIG_X509_CERTIFICATE_PARSER
CONFIG_PKCS8_PRIVATE_KEY_PARSER
CONFIG_TPM_KEY_PARSER
CONFIG_PKCS7_MESSAGE_PARSER
CONFIG_SIGNED_PE_FILE_VERIFICATION

is depended by

CONFIG_INTEGRITY_ASYMMETRIC_KEYS

modulename: asymmetric_keys.ko

and/or

keyctl_pkey.ko
configname: CONFIG_ASYMMETRIC_KEY_TYPE

Linux Kernel Configuration

└─> Cryptographic API

└─> Asymmetric (public-key cryptographic) key type

This option provides support for a key type that holds the data for
the asymmetric keys used for public key cryptographic operations such
as encryption, decryption, signature generation and signature
verification.

source code:

crypto/asymmetric_keys/