menuconfig ASYMMETRIC_KEY_TYPE tristate "Asymmetric (public-key cryptographic) key type" depends on KEYS help 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. if ASYMMETRIC_KEY_TYPE config ASYMMETRIC_PUBLIC_KEY_SUBTYPE tristate "Asymmetric public-key crypto algorithm subtype" select MPILIB select PUBLIC_KEY_ALGO_RSA select CRYPTO_HASH_INFO help This option provides support for asymmetric public key type handling. If signature generation and/or verification are to be used, appropriate hash algorithms (such as SHA-1) must be available. ENOPKG will be reported if the requisite algorithm is unavailable. config PUBLIC_KEY_ALGO_RSA tristate "RSA public-key algorithm" select MPILIB help This option enables support for the RSA algorithm (PKCS#1, RFC3447). config X509_CERTIFICATE_PARSER tristate "X.509 certificate parser" depends on ASYMMETRIC_PUBLIC_KEY_SUBTYPE select ASN1 select OID_REGISTRY help This option provides support for parsing X.509 format blobs for key data and provides the ability to instantiate a crypto key from a public key packet found inside the certificate. config PKCS7_MESSAGE_PARSER tristate "PKCS#7 message parser" depends on X509_CERTIFICATE_PARSER select ASN1 select OID_REGISTRY help This option provides support for parsing PKCS#7 format messages for signature data and provides the ability to verify the signature. config PKCS7_TEST_KEY tristate "PKCS#7 testing key type" depends on PKCS7_MESSAGE_PARSER select SYSTEM_TRUSTED_KEYRING help This option provides a type of key that can be loaded up from a PKCS#7 message - provided the message is signed by a trusted key. If it is, the PKCS#7 wrapper is discarded and reading the key returns just the payload. If it isn't, adding the key will fail with an error. This is intended for testing the PKCS#7 parser. config SIGNED_PE_FILE_VERIFICATION bool "Support for PE file signature verification" depends on PKCS7_MESSAGE_PARSER=y select ASN1 select OID_REGISTRY help This option provides support for verifying the signature(s) on a signed PE binary. endif # ASYMMETRIC_KEY_TYPE