diff --git a/crypto/Kconfig b/crypto/Kconfig
index eb0aca4..d6b2a8b 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -100,6 +100,14 @@
 	select CRYPTO_AKCIPHER2
 	select CRYPTO_ALGAPI
 
+config CRYPTO_RSA
+	tristate "RSA algorithm"
+	select AKCIPHER
+	select MPILIB
+	select ASN1
+	help
+	  Generic implementation of the RSA public key algorithm.
+
 config CRYPTO_MANAGER
 	tristate "Cryptographic algorithm manager"
 	select CRYPTO_MANAGER2