diff --git a/library/pk.c b/library/pk.c
index 8d13bc5..b5081f9 100644
--- a/library/pk.c
+++ b/library/pk.c
@@ -176,12 +176,16 @@
 }
 
 /*
- * Verify a signature
+ * Verify a signature (restartable)
  */
-int mbedtls_pk_verify( mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg,
+int mbedtls_pk_verify_restartable( mbedtls_pk_context *ctx,
+               mbedtls_md_type_t md_alg,
                const unsigned char *hash, size_t hash_len,
-               const unsigned char *sig, size_t sig_len )
+               const unsigned char *sig, size_t sig_len,
+               void *rs_ctx )
 {
+    (void) rs_ctx; // XXX temporary
+
     if( ctx == NULL || ctx->pk_info == NULL ||
         pk_hashlen_helper( md_alg, &hash_len ) != 0 )
         return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
@@ -194,6 +198,17 @@
 }
 
 /*
+ * Verify a signature
+ */
+int mbedtls_pk_verify( mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg,
+               const unsigned char *hash, size_t hash_len,
+               const unsigned char *sig, size_t sig_len )
+{
+    return( mbedtls_pk_verify_restartable( ctx, md_alg, hash, hash_len,
+                                           sig, sig_len, NULL ) );
+}
+
+/*
  * Verify a signature with options
  */
 int mbedtls_pk_verify_ext( mbedtls_pk_type_t type, const void *options,
@@ -252,13 +267,17 @@
 }
 
 /*
- * Make a signature
+ * Make a signature (restartable)
  */
-int mbedtls_pk_sign( mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg,
+int mbedtls_pk_sign_restartable( mbedtls_pk_context *ctx,
+             mbedtls_md_type_t md_alg,
              const unsigned char *hash, size_t hash_len,
              unsigned char *sig, size_t *sig_len,
-             int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
+             int (*f_rng)(void *, unsigned char *, size_t), void *p_rng,
+             void *rs_ctx )
 {
+    (void) rs_ctx; // XXX temporary
+
     if( ctx == NULL || ctx->pk_info == NULL ||
         pk_hashlen_helper( md_alg, &hash_len ) != 0 )
         return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
@@ -271,6 +290,18 @@
 }
 
 /*
+ * Make a signature
+ */
+int mbedtls_pk_sign( mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg,
+             const unsigned char *hash, size_t hash_len,
+             unsigned char *sig, size_t *sig_len,
+             int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
+{
+    return( mbedtls_pk_sign_restartable( ctx, md_alg, hash, hash_len,
+                                         sig, sig_len, f_rng, p_rng, NULL ) );
+}
+
+/*
  * Decrypt message
  */
 int mbedtls_pk_decrypt( mbedtls_pk_context *ctx,