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authorNiels Möller <nisse@lysator.liu.se>2003-01-23 23:42:04 +0100
committerNiels Möller <nisse@lysator.liu.se>2003-01-23 23:42:04 +0100
commit5e6440f059550340b24509a20ac6e35b3215b1f5 (patch)
tree0fb20f3b9c9e6c4d998897852b8116ef3b9558c0 /rsa-sha1-verify.c
parent97453327a55aeaaebd620a7d1776fba694f6d727 (diff)
downloadnettle-5e6440f059550340b24509a20ac6e35b3215b1f5.tar.gz
* rsa_md5.c, rsa_sha1.c: Deleted files, contents spread over
several files for signing and verification. * rsa-sign.c, rsa-sha1-verify.c, rsa-sha1-sign.c, rsa-md5-verify.c, rsa-md5-sign.c: New files. * rsa-sha1-verify.c (rsa_sha1_verify_digest): New function. * rsa-sha1-sign.c (rsa_sha1_sign_digest): New function. * rsa-md5-verify.c (rsa_md5_verify_digest): New function. * rsa-md5-sign.c (rsa_md5_sign_digest): New function. * rsa-verify.c (_rsa_verify): New file, new function. * rsa.c (_rsa_check_size): Renamed from rsa_check_size, and made non-static. Private key functions moved to rsa-sign.c. Rev: src/nettle/rsa-md5-sign.c:1.1 Rev: src/nettle/rsa-md5-verify.c:1.1 Rev: src/nettle/rsa-sha1-sign.c:1.1 Rev: src/nettle/rsa-sha1-verify.c:1.1 Rev: src/nettle/rsa-sign.c:1.1 Rev: src/nettle/rsa-verify.c:1.1 Rev: src/nettle/rsa.c:1.10 Rev: src/nettle/rsa.h:1.18
Diffstat (limited to 'rsa-sha1-verify.c')
-rw-r--r--rsa-sha1-verify.c77
1 files changed, 77 insertions, 0 deletions
diff --git a/rsa-sha1-verify.c b/rsa-sha1-verify.c
new file mode 100644
index 00000000..717a392d
--- /dev/null
+++ b/rsa-sha1-verify.c
@@ -0,0 +1,77 @@
+/* rsa-sha1-verify.c
+ *
+ * Verifying signatures created with RSA and SHA1.
+ */
+
+/* nettle, low-level cryptographics library
+ *
+ * Copyright (C) 2001, 2003 Niels Möller
+ *
+ * The nettle library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or (at your
+ * option) any later version.
+ *
+ * The nettle library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with the nettle library; see the file COPYING.LIB. If not, write to
+ * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA 02111-1307, USA.
+ */
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#if WITH_PUBLIC_KEY
+
+#include "rsa.h"
+
+#include "bignum.h"
+#include "pkcs1.h"
+
+#include <assert.h>
+
+int
+rsa_sha1_verify(const struct rsa_public_key *key,
+ struct sha1_ctx *hash,
+ const mpz_t s)
+{
+ int res;
+ mpz_t m;
+
+ assert(key->size >= RSA_MINIMUM_N_OCTETS);
+ mpz_init(m);
+
+ pkcs1_rsa_sha1_encode(m, key->size - 1, hash);
+ res = _rsa_verify(key, m, s);
+
+ mpz_clear(m);
+
+ return res;
+}
+
+int
+rsa_sha1_verify_digest(const struct rsa_public_key *key,
+ const uint8_t *digest,
+ const mpz_t s)
+{
+ int res;
+ mpz_t m;
+
+ assert(key->size >= RSA_MINIMUM_N_OCTETS);
+ mpz_init(m);
+
+ pkcs1_rsa_sha1_encode_digest(m, key->size - 1, digest);
+ res = _rsa_verify(key, m, s);
+
+ mpz_clear(m);
+
+ return res;
+}
+
+#endif /* WITH_PUBLIC_KEY */