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authorDamien Miller <djm@mindrot.org>2014-02-04 11:02:42 +1100
committerDamien Miller <djm@mindrot.org>2014-02-04 11:02:42 +1100
commit4e8d937af79ce4e253f77ec93489d098b25becc3 (patch)
tree83b0293313eea8dfebcc7f906c5058f530238e8b /hmac.h
parent69d0d09f76bab5aec86fbf78489169f63bd16475 (diff)
- markus@cvs.openbsd.org 2014/01/27 18:58:14
[Makefile.in digest.c digest.h hostfile.c kex.h mac.c hmac.c hmac.h] replace openssl HMAC with an implementation based on our ssh_digest_* ok and feedback djm@
Diffstat (limited to 'hmac.h')
-rw-r--r--hmac.h37
1 files changed, 37 insertions, 0 deletions
diff --git a/hmac.h b/hmac.h
new file mode 100644
index 00000000..2374a695
--- /dev/null
+++ b/hmac.h
@@ -0,0 +1,37 @@
+/* $OpenBSD: hmac.h,v 1.6 2014/01/27 18:58:14 markus Exp $ */
+/*
+ * Copyright (c) 2014 Markus Friedl. All rights reserved.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _HMAC_H
+#define _HMAC_H
+
+/* Returns the algorithm's digest length in bytes or 0 for invalid algorithm */
+size_t ssh_hmac_bytes(int alg);
+
+struct ssh_hmac_ctx;
+struct ssh_hmac_ctx *ssh_hmac_start(int alg);
+
+/* Sets the state of the HMAC or resets the state if key == NULL */
+int ssh_hmac_init(struct ssh_hmac_ctx *ctx, const void *key, size_t klen)
+ __attribute__((__bounded__(__buffer__, 2, 3)));
+int ssh_hmac_update(struct ssh_hmac_ctx *ctx, const void *m, size_t mlen)
+ __attribute__((__bounded__(__buffer__, 2, 3)));
+int ssh_hmac_update_buffer(struct ssh_hmac_ctx *ctx, const Buffer *b);
+int ssh_hmac_final(struct ssh_hmac_ctx *ctx, u_char *d, size_t dlen)
+ __attribute__((__bounded__(__buffer__, 2, 3)));
+void ssh_hmac_free(struct ssh_hmac_ctx *ctx);
+
+#endif /* _HMAC_H */