--- /dev/null
+/*
+ * Copyright (C) 2012 Aleksandr Grinberg
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <openssl/evp.h>
+#include <openssl/hmac.h>
+
+#include "openssl_hmac_signer.h"
+
+typedef struct private_openssl_hmac_signer_t private_openssl_hmac_signer_t;
+
+/**
+ * Private data of openssl_hmac_signer_t
+ */
+struct private_openssl_hmac_signer_t {
+
+ /**
+ * Public part of this class.
+ */
+ openssl_hmac_signer_t public;
+
+ /**
+ * Hasher to use
+ */
+ const EVP_MD *hasher;
+
+ /**
+ * Current HMAC context
+ */
+ HMAC_CTX hmac;
+
+ /**
+ * Key stored for reuse
+ */
+ chunk_t key;
+
+ /**
+ * Signature truncation length
+ */
+ size_t trunc;
+};
+
+METHOD(signer_t, get_block_size, size_t,
+ private_openssl_hmac_signer_t *this)
+{
+ return this->trunc;
+}
+
+METHOD(signer_t, get_key_size, size_t,
+ private_openssl_hmac_signer_t *this)
+{
+ return this->key.len;
+}
+
+/**
+ * Resets HMAC context
+ */
+static void reset(private_openssl_hmac_signer_t *this)
+{
+ HMAC_Init_ex(&this->hmac, this->key.ptr, this->key.len, this->hasher, NULL);
+}
+
+static void get_bytes(private_openssl_hmac_signer_t *this, chunk_t seed,
+ u_int8_t *out)
+{
+ if (out == NULL)
+ {
+ HMAC_Update(&this->hmac, seed.ptr, seed.len);
+ }
+ else
+ {
+ HMAC_Update(&this->hmac, seed.ptr, seed.len);
+ HMAC_Final(&this->hmac, out, NULL);
+ reset(this);
+ }
+}
+
+METHOD(signer_t, get_signature, void,
+ private_openssl_hmac_signer_t *this, chunk_t seed, u_int8_t *out)
+{
+ if (out == NULL)
+ {
+ get_bytes(this, seed, NULL);
+ }
+ else
+ {
+ u_int8_t mac[this->key.len];
+
+ get_bytes(this, seed, mac);
+ memcpy(out, mac, this->trunc);
+ }
+}
+
+METHOD(signer_t, allocate_signature,void,
+ private_openssl_hmac_signer_t *this, chunk_t seed, chunk_t *out)
+{
+ if (out == NULL)
+ {
+ get_bytes(this, seed, NULL);
+ }
+ else
+ {
+ u_int8_t mac[this->key.len];
+
+ get_bytes(this, seed, mac);
+ *out = chunk_alloc(this->trunc);
+ memcpy(out->ptr, mac, this->trunc);
+ }
+}
+
+METHOD(signer_t, verify_signature, bool,
+ private_openssl_hmac_signer_t *this, chunk_t seed, chunk_t signature)
+{
+ u_int8_t mac[this->key.len];
+
+ get_bytes(this, seed, mac);
+
+ if (signature.len != this->trunc)
+ {
+ return FALSE;
+ }
+ return memeq(signature.ptr, mac, this->trunc);
+}
+
+METHOD(signer_t, set_key, void,
+ private_openssl_hmac_signer_t *this, chunk_t key)
+{
+ chunk_clear(&this->key);
+ this->key = chunk_clone(key);
+ reset(this);
+}
+
+METHOD(signer_t, destroy, void,
+ private_openssl_hmac_signer_t *this)
+{
+ HMAC_CTX_cleanup(&this->hmac);
+ chunk_clear(&this->key);
+ free(this);
+}
+
+/*
+ * Described in header
+ */
+openssl_hmac_signer_t *openssl_hmac_signer_create(integrity_algorithm_t algo)
+{
+ private_openssl_hmac_signer_t *this;
+
+ INIT(this,
+ .public = {
+ .signer = {
+ .get_signature = _get_signature,
+ .allocate_signature = _allocate_signature,
+ .verify_signature = _verify_signature,
+ .get_block_size = _get_block_size,
+ .get_key_size = _get_key_size,
+ .set_key = _set_key,
+ .destroy = _destroy,
+ },
+ },
+ );
+
+ switch (algo)
+ {
+ case AUTH_HMAC_MD5_96:
+ this->hasher = EVP_get_digestbyname("md5");
+ this->key.len = 16;
+ this->trunc = 12;
+ break;
+ case AUTH_HMAC_MD5_128:
+ this->hasher = EVP_get_digestbyname("md5");
+ this->key.len = 16;
+ this->trunc = 16;
+ break;
+ case AUTH_HMAC_SHA1_96:
+ this->hasher = EVP_get_digestbyname("sha1");
+ this->key.len = 20;
+ this->trunc = 12;
+ break;
+ case AUTH_HMAC_SHA1_128:
+ this->hasher = EVP_get_digestbyname("sha1");
+ this->key.len = 20;
+ this->trunc = 16;
+ break;
+ case AUTH_HMAC_SHA1_160:
+ this->hasher = EVP_get_digestbyname("sha1");
+ this->key.len = 20;
+ this->trunc = 20;
+ break;
+ case AUTH_HMAC_SHA2_256_128:
+ this->hasher = EVP_get_digestbyname("sha256");
+ this->key.len = 32;
+ this->trunc = 16;
+ break;
+ case AUTH_HMAC_SHA2_256_256:
+ this->hasher = EVP_get_digestbyname("sha256");
+ this->key.len = 32;
+ this->trunc = 32;
+ break;
+ case AUTH_HMAC_SHA2_384_192:
+ this->hasher = EVP_get_digestbyname("sha384");
+ this->key.len = 48;
+ this->trunc = 24;
+ break;
+ case AUTH_HMAC_SHA2_384_384:
+ this->hasher = EVP_get_digestbyname("sha384");
+ this->key.len = 48;
+ this->trunc = 48;
+ break;
+ case AUTH_HMAC_SHA2_512_256:
+ this->hasher = EVP_get_digestbyname("sha512");
+ this->key.len = 64;
+ this->trunc = 32;
+ break;
+ default:
+ break;
+ }
+
+ if (!this->hasher)
+ {
+ /* hash is not available */
+ free(this);
+ return NULL;
+ }
+
+ HMAC_CTX_init(&this->hmac);
+
+ return &this->public;
+}
--- /dev/null
+/*
+ * Copyright (C) 2012 Aleksandr Grinberg
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+/**
+ * @defgroup openssl_hmac_signer openssl_hmac_signer
+ * @{ @ingroup openssl_p
+ */
+
+#ifndef OPENSSL_HMAC_SIGNER_H_
+#define OPENSSL_HMAC_SIGNER_H_
+
+typedef struct openssl_hmac_signer_t openssl_hmac_signer_t;
+
+#include <crypto/signers/signer.h>
+
+/**
+ * Implementation of HMAC signature functions using OpenSSL.
+ */
+struct openssl_hmac_signer_t {
+
+ /**
+ * Implements signer_t interface.
+ */
+ signer_t signer;
+};
+
+/**
+ * Constructor to create openssl_hmac_signer_t.
+ *
+ * @param algo algorithm
+ * @return openssl_hmac_signer_t, NULL if not supported
+ */
+openssl_hmac_signer_t *openssl_hmac_signer_create(integrity_algorithm_t algo);
+
+#endif /** OPENSSL_HMAC_SIGNER_H_ @}*/
#include "openssl_crl.h"
#include "openssl_rng.h"
#include "openssl_hmac_prf.h"
+#include "openssl_hmac_signer.h"
typedef struct private_openssl_plugin_t private_openssl_plugin_t;
#ifndef OPENSSL_NO_SHA512
PLUGIN_PROVIDE(PRF, PRF_HMAC_SHA2_384),
PLUGIN_PROVIDE(PRF, PRF_HMAC_SHA2_512),
+#endif
+ PLUGIN_REGISTER(SIGNER, openssl_hmac_signer_create),
+#ifndef OPENSSL_NO_MD5
+ PLUGIN_PROVIDE(SIGNER, AUTH_HMAC_MD5_96),
+ PLUGIN_PROVIDE(SIGNER, AUTH_HMAC_MD5_128),
+#endif
+#ifndef OPENSSL_NO_SHA1
+ PLUGIN_PROVIDE(SIGNER, AUTH_HMAC_SHA1_96),
+ PLUGIN_PROVIDE(SIGNER, AUTH_HMAC_SHA1_128),
+ PLUGIN_PROVIDE(SIGNER, AUTH_HMAC_SHA1_160),
+#endif
+#ifndef OPENSSL_NO_SHA256
+ PLUGIN_PROVIDE(SIGNER, AUTH_HMAC_SHA2_256_128),
+ PLUGIN_PROVIDE(SIGNER, AUTH_HMAC_SHA2_256_256),
+#endif
+#ifndef OPENSSL_NO_SHA512
+ PLUGIN_PROVIDE(SIGNER, AUTH_HMAC_SHA2_384_192),
+ PLUGIN_PROVIDE(SIGNER, AUTH_HMAC_SHA2_384_384),
+ PLUGIN_PROVIDE(SIGNER, AUTH_HMAC_SHA2_512_256),
#endif
#endif /* OPENSSL_NO_HMAC */
#ifndef OPENSSL_NO_DH
projects / people / ms / strongswan.git / commitdiff
