menuconfig ASYMMETRIC_KEY_TYPE bool "Asymmetric (public-key cryptographic) key Support" 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 bool "Asymmetric public-key crypto algorithm subtype" 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 RSA_PUBLIC_KEY_PARSER bool "RSA public key parser" depends on ASYMMETRIC_PUBLIC_KEY_SUBTYPE select ASN1_DECODER select ASN1_COMPILER select OID_REGISTRY help This option provides support for parsing a blob containing RSA public key data and provides the ability to instantiate a public key. config X509_CERTIFICATE_PARSER bool "X.509 certificate parser" depends on ASYMMETRIC_PUBLIC_KEY_SUBTYPE select ASN1_DECODER select ASN1_COMPILER select OID_REGISTRY select LIB_DATE 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 bool "PKCS#7 message parser" depends on X509_CERTIFICATE_PARSER select ASN1_DECODER select ASN1_COMPILER 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. endif # ASYMMETRIC_KEY_TYPE