From 0fb4bd32b45970d50e0b21b40a5c21fdb4639739 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Niels=20M=C3=B6ller?= <nisse@lysator.liu.se>
Date: Sat, 12 Jan 2002 15:34:53 +0100
Subject: [PATCH] (rsa_init_public_key): New function. (rsa_clear_public_key):
Likewise. (rsa_init_private_key): Likewise. (rsa_clear_private_key):
Likewise.
Rev: src/nettle/rsa.c:1.3
Rev: src/nettle/rsa.h:1.4
---
rsa.c | 45 +++++++++++++++++++++++++++++++++++++++++++++
rsa.h | 20 +++++++++++++++++++-
2 files changed, 64 insertions(+), 1 deletion(-)
diff --git a/rsa.c b/rsa.c
index 6c69eb02..87e81111 100644
--- a/rsa.c
+++ b/rsa.c
@@ -37,6 +37,24 @@
* one can link in the signature functions without also getting the
* verify functions. */
+void
+rsa_init_public_key(struct rsa_public_key *key)
+{
+ mpz_init(key->n);
+ mpz_init(key->e);
+
+ /* Not really necessary, but it seems cleaner to initialize all the
+ * storage. */
+ key->size = 0;
+}
+
+void
+rsa_clear_public_key(struct rsa_public_key *key)
+{
+ mpz_clear(key->n);
+ mpz_clear(key->e);
+}
+
int
rsa_prepare_public_key(struct rsa_public_key *key)
{
@@ -63,12 +81,39 @@ rsa_prepare_public_key(struct rsa_public_key *key)
}
}
+void
+rsa_init_private_key(struct rsa_private_key *key)
+{
+ rsa_init_public_key(&key->pub);
+
+ mpz_init(key->d);
+ mpz_init(key->p);
+ mpz_init(key->q);
+ mpz_init(key->a);
+ mpz_init(key->b);
+ mpz_init(key->c);
+}
+
+void
+rsa_clear_private_key(struct rsa_private_key *key)
+{
+ rsa_clear_public_key(&key->pub);
+
+ mpz_clear(key->d);
+ mpz_clear(key->p);
+ mpz_clear(key->q);
+ mpz_clear(key->a);
+ mpz_clear(key->b);
+ mpz_clear(key->c);
+}
+
int
rsa_prepare_private_key(struct rsa_private_key *key)
{
return rsa_prepare_public_key(&key->pub);
}
+
#ifndef RSA_CRT
#define RSA_CRT 1
#endif
diff --git a/rsa.h b/rsa.h
index 47c56185..08df531d 100644
--- a/rsa.h
+++ b/rsa.h
@@ -84,15 +84,33 @@ struct rsa_private_key
* The signature is represented as a mpz_t bignum. This call also
* resets the hashing context.
*
- * When done with the key, don't forget to call mpz_clear.
+ * When done with the key and signature, don't forget to call
+ * mpz_clear.
*/
+/* Calls mpz_init to initialize bignum storage. */
+void
+rsa_init_public_key(struct rsa_public_key *key);
+
+/* Calls mpz_clear to deallocate bignum storage. */
+void
+rsa_clear_public_key(struct rsa_public_key *key);
+
int
rsa_prepare_public_key(struct rsa_public_key *key);
+/* Calls mpz_init to initialize bignum storage. */
+void
+rsa_init_private_key(struct rsa_private_key *key);
+
+/* Calls mpz_clear to deallocate bignum storage. */
+void
+rsa_clear_private_key(struct rsa_private_key *key);
+
int
rsa_prepare_private_key(struct rsa_private_key *key);
+
/* PKCS#1 style signatures */
void
rsa_md5_sign(struct rsa_private_key *key,
--
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