diff --git a/library/psa_crypto_rsa.c b/library/psa_crypto_rsa.c
index b79ba5d..68f4bf1 100644
--- a/library/psa_crypto_rsa.c
+++ b/library/psa_crypto_rsa.c
@@ -650,4 +650,107 @@
     return status;
 }
 
+psa_status_t mbedtls_psa_asymmetric_decrypt( const psa_key_attributes_t *attributes,
+                                             const uint8_t *key_buffer,
+                                             size_t key_buffer_size,
+                                             psa_algorithm_t alg,
+                                             const uint8_t *input,
+                                             size_t input_length,
+                                             const uint8_t *salt,
+                                             size_t salt_length,
+                                             uint8_t *output,
+                                             size_t output_size,
+                                             size_t *output_length )
+{
+    psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+    (void) key_buffer;
+    (void) key_buffer_size;
+    (void) input;
+    (void) input_length;
+    (void) salt;
+    (void) salt_length;
+    (void) output;
+    (void) output_size;
+    (void) output_length;
+
+    *output_length = 0;
+
+    if( attributes->core.type == PSA_KEY_TYPE_RSA_KEY_PAIR )
+    {
+#if defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_CRYPT) || \
+    defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_OAEP)
+        mbedtls_rsa_context *rsa = NULL;
+        status = mbedtls_psa_rsa_load_representation( attributes->core.type,
+                                                      key_buffer,
+                                                      key_buffer_size,
+                                                      &rsa );
+        if( status != PSA_SUCCESS )
+            goto rsa_exit;
+
+        if( input_length != mbedtls_rsa_get_len( rsa ) )
+        {
+            status = PSA_ERROR_INVALID_ARGUMENT;
+            goto rsa_exit;
+        }
+#endif /* defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_CRYPT) ||
+        * defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_OAEP) */
+
+        if( alg == PSA_ALG_RSA_PKCS1V15_CRYPT )
+        {
+#if defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_CRYPT)
+            status = mbedtls_to_psa_error(
+                mbedtls_rsa_pkcs1_decrypt( rsa,
+                                           mbedtls_psa_get_random,
+                                           MBEDTLS_PSA_RANDOM_STATE,
+                                           output_length,
+                                           input,
+                                           output,
+                                           output_size ) );
+#else
+            status = PSA_ERROR_NOT_SUPPORTED;
+#endif /* MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_CRYPT */
+        }
+        else
+        if( PSA_ALG_IS_RSA_OAEP( alg ) )
+        {
+#if defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_OAEP)
+            status = mbedtls_to_psa_error(
+                         psa_rsa_oaep_set_padding_mode( alg, rsa ) );
+            if( status != PSA_SUCCESS )
+                goto rsa_exit;
+
+            status = mbedtls_to_psa_error(
+                mbedtls_rsa_rsaes_oaep_decrypt( rsa,
+                                                mbedtls_psa_get_random,
+                                                MBEDTLS_PSA_RANDOM_STATE,
+                                                salt, salt_length,
+                                                output_length,
+                                                input,
+                                                output,
+                                                output_size ) );
+#else
+            status = PSA_ERROR_NOT_SUPPORTED;
+#endif /* MBEDTLS_PSA_BUILTIN_ALG_RSA_OAEP */
+        }
+        else
+        {
+            status = PSA_ERROR_INVALID_ARGUMENT;
+        }
+
+#if defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_CRYPT) || \
+    defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_OAEP)
+rsa_exit:
+        mbedtls_rsa_free( rsa );
+        mbedtls_free( rsa );
+#endif /* defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_CRYPT) ||
+        * defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_OAEP) */
+    }
+    else
+    {
+        status = PSA_ERROR_NOT_SUPPORTED;
+    }
+
+    return status;
+}
+
 #endif /* MBEDTLS_PSA_CRYPTO_C */
diff --git a/library/psa_crypto_rsa.h b/library/psa_crypto_rsa.h
index 700770b..197caa8 100644
--- a/library/psa_crypto_rsa.h
+++ b/library/psa_crypto_rsa.h
@@ -212,6 +212,50 @@
     psa_algorithm_t alg, const uint8_t *hash, size_t hash_length,
     const uint8_t *signature, size_t signature_length );
 
+/**
+ * \brief Encrypt a short message with a public key.
+ *
+ * \param attributes            The attributes for the key to import.
+ * \param key_buffer            Buffer where the key data is to be written.
+ * \param key_buffer_size       Size of the \p key_buffer buffer in bytes.
+ * \param input_length          Size of the \p input buffer in bytes.
+ * \param[in] salt              A salt or label, if supported by the
+ *                              encryption algorithm.
+ *                              If the algorithm does not support a
+ *                              salt, pass \c NULL.
+ *                              If the algorithm supports an optional
+ *                              salt and you do not want to pass a salt,
+ *                              pass \c NULL.
+ *
+ *                              - For #PSA_ALG_RSA_PKCS1V15_CRYPT, no salt is
+ *                                supported.
+ * \param salt_length           Size of the \p salt buffer in bytes.
+ *                              If \p salt is \c NULL, pass 0.
+ * \param[out] output           Buffer where the encrypted message is to
+ *                              be written.
+ * \param output_size           Size of the \p output buffer in bytes.
+ * \param[out] output_length    On success, the number of bytes
+ *                              that make up the returned output.
+ *
+ * \retval #PSA_SUCCESS
+ * \retval #PSA_ERROR_BUFFER_TOO_SMALL
+ *         The size of the \p output buffer is too small. You can
+ *         determine a sufficient buffer size by calling
+ *         #PSA_ASYMMETRIC_ENCRYPT_OUTPUT_SIZE(\c key_type, \c key_bits, \p alg)
+ *         where \c key_type and \c key_bits are the type and bit-size
+ *         respectively of \p key.
+ * \retval #PSA_ERROR_NOT_SUPPORTED
+ * \retval #PSA_ERROR_INVALID_ARGUMENT
+ * \retval #PSA_ERROR_INSUFFICIENT_MEMORY
+ * \retval #PSA_ERROR_COMMUNICATION_FAILURE
+ * \retval #PSA_ERROR_HARDWARE_FAILURE
+ * \retval #PSA_ERROR_TAMPERING_DETECTED
+ * \retval #PSA_ERROR_INSUFFICIENT_ENTROPY
+ * \retval #PSA_ERROR_BAD_STATE
+ *         The library has not been previously initialized by psa_crypto_init().
+ *         It is implementation-dependent whether a failure to initialize
+ *         results in this error code.
+ */
 psa_status_t mbedtls_psa_asymmetric_encrypt( const psa_key_attributes_t *attributes,
                                              const uint8_t *key_buffer,
                                              size_t key_buffer_size,
@@ -224,4 +268,62 @@
                                              size_t output_size,
                                              size_t *output_length );
 
+/**
+ * \brief Decrypt a short message with a private key.
+ *
+ * \param attributes            The attributes for the key to import.
+ * \param key_buffer            Buffer where the key data is to be written.
+ * \param key_buffer_size       Size of the \p key_buffer buffer in bytes.
+ * \param[in] input             The message to decrypt.
+ * \param input_length          Size of the \p input buffer in bytes.
+ * \param[in] salt              A salt or label, if supported by the
+ *                              encryption algorithm.
+ *                              If the algorithm does not support a
+ *                              salt, pass \c NULL.
+ *                              If the algorithm supports an optional
+ *                              salt and you do not want to pass a salt,
+ *                              pass \c NULL.
+ *
+ *                              - For #PSA_ALG_RSA_PKCS1V15_CRYPT, no salt is
+ *                                supported.
+ * \param salt_length           Size of the \p salt buffer in bytes.
+ *                              If \p salt is \c NULL, pass 0.
+ * \param[out] output           Buffer where the decrypted message is to
+ *                              be written.
+ * \param output_size           Size of the \c output buffer in bytes.
+ * \param[out] output_length    On success, the number of bytes
+ *                              that make up the returned output.
+ *
+ * \retval #PSA_SUCCESS
+ * \retval #PSA_ERROR_BUFFER_TOO_SMALL
+ *         The size of the \p output buffer is too small. You can
+ *         determine a sufficient buffer size by calling
+ *         #PSA_ASYMMETRIC_DECRYPT_OUTPUT_SIZE(\c key_type, \c key_bits, \p alg)
+ *         where \c key_type and \c key_bits are the type and bit-size
+ *         respectively of \p key.
+ * \retval #PSA_ERROR_NOT_SUPPORTED
+ * \retval #PSA_ERROR_INVALID_ARGUMENT
+ * \retval #PSA_ERROR_INSUFFICIENT_MEMORY
+ * \retval #PSA_ERROR_COMMUNICATION_FAILURE
+ * \retval #PSA_ERROR_HARDWARE_FAILURE
+ * \retval #PSA_ERROR_TAMPERING_DETECTED
+ * \retval #PSA_ERROR_INSUFFICIENT_ENTROPY
+ * \retval #PSA_ERROR_INVALID_PADDING
+ * \retval #PSA_ERROR_BAD_STATE
+ *         The library has not been previously initialized by psa_crypto_init().
+ *         It is implementation-dependent whether a failure to initialize
+ *         results in this error code.
+ */
+psa_status_t mbedtls_psa_asymmetric_decrypt( const psa_key_attributes_t *attributes,
+                                             const uint8_t *key_buffer,
+                                             size_t key_buffer_size,
+                                             psa_algorithm_t alg,
+                                             const uint8_t *input,
+                                             size_t input_length,
+                                             const uint8_t *salt,
+                                             size_t salt_length,
+                                             uint8_t *output,
+                                             size_t output_size,
+                                             size_t *output_length );
+
 #endif /* PSA_CRYPTO_RSA_H */