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diff --git a/crypto/asymmetric_keys/Kconfig b/crypto/asymmetric_keys/Kconfig
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+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
+        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"
+        depends on ASYMMETRIC_PUBLIC_KEY_SUBTYPE
+        select MPILIB_EXTRA
+        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 procides 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.
+
+endif # ASYMMETRIC_KEY_TYPE