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-rw-r--r--ext/openssl/ossl_hmac.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/ext/openssl/ossl_hmac.c b/ext/openssl/ossl_hmac.c
index 84d378f..ba85f52 100644
--- a/ext/openssl/ossl_hmac.c
+++ b/ext/openssl/ossl_hmac.c
@@ -174,6 +174,22 @@ ossl_hmac_hexdigest(VALUE self)
/*
* call-seq:
+ * hmac.reset -> self
+ *
+ */
+static VALUE
+ossl_hmac_reset(VALUE self)
+{
+ HMAC_CTX *ctx;
+
+ GetHMAC(self, ctx);
+ HMAC_Init_ex(ctx, NULL, 0, NULL, NULL);
+
+ return self;
+}
+
+/*
+ * call-seq:
* HMAC.digest(digest, key, data) -> aString
*
*/
@@ -237,6 +253,7 @@ Init_ossl_hmac()
rb_define_method(cHMAC, "initialize", ossl_hmac_initialize, 2);
rb_define_copy_func(cHMAC, ossl_hmac_copy);
+ rb_define_method(cHMAC, "reset", ossl_hmac_reset, 0);
rb_define_method(cHMAC, "update", ossl_hmac_update, 1);
rb_define_alias(cHMAC, "<<", "update");
rb_define_method(cHMAC, "digest", ossl_hmac_digest, 0);