aboutsummaryrefslogtreecommitdiffstats
path: root/crypto/hmac/hm_pmeth.c
diff options
context:
space:
mode:
Diffstat (limited to 'crypto/hmac/hm_pmeth.c')
-rw-r--r--crypto/hmac/hm_pmeth.c373
1 files changed, 182 insertions, 191 deletions
diff --git a/crypto/hmac/hm_pmeth.c b/crypto/hmac/hm_pmeth.c
index 0daa44511d24..0ffff79cc450 100644
--- a/crypto/hmac/hm_pmeth.c
+++ b/crypto/hmac/hm_pmeth.c
@@ -1,5 +1,6 @@
-/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
- * project 2007.
+/*
+ * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
+ * 2007.
*/
/* ====================================================================
* Copyright (c) 2007 The OpenSSL Project. All rights reserved.
@@ -9,7 +10,7 @@
* are met:
*
* 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
+ * notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
@@ -65,207 +66,197 @@
/* HMAC pkey context structure */
-typedef struct
- {
- const EVP_MD *md; /* MD for HMAC use */
- ASN1_OCTET_STRING ktmp; /* Temp storage for key */
- HMAC_CTX ctx;
- } HMAC_PKEY_CTX;
+typedef struct {
+ const EVP_MD *md; /* MD for HMAC use */
+ ASN1_OCTET_STRING ktmp; /* Temp storage for key */
+ HMAC_CTX ctx;
+} HMAC_PKEY_CTX;
static int pkey_hmac_init(EVP_PKEY_CTX *ctx)
- {
- HMAC_PKEY_CTX *hctx;
- hctx = OPENSSL_malloc(sizeof(HMAC_PKEY_CTX));
- if (!hctx)
- return 0;
- hctx->md = NULL;
- hctx->ktmp.data = NULL;
- hctx->ktmp.length = 0;
- hctx->ktmp.flags = 0;
- hctx->ktmp.type = V_ASN1_OCTET_STRING;
- HMAC_CTX_init(&hctx->ctx);
-
- ctx->data = hctx;
- ctx->keygen_info_count = 0;
-
- return 1;
- }
+{
+ HMAC_PKEY_CTX *hctx;
+ hctx = OPENSSL_malloc(sizeof(HMAC_PKEY_CTX));
+ if (!hctx)
+ return 0;
+ hctx->md = NULL;
+ hctx->ktmp.data = NULL;
+ hctx->ktmp.length = 0;
+ hctx->ktmp.flags = 0;
+ hctx->ktmp.type = V_ASN1_OCTET_STRING;
+ HMAC_CTX_init(&hctx->ctx);
+
+ ctx->data = hctx;
+ ctx->keygen_info_count = 0;
+
+ return 1;
+}
static int pkey_hmac_copy(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src)
- {
- HMAC_PKEY_CTX *sctx, *dctx;
- if (!pkey_hmac_init(dst))
- return 0;
- sctx = src->data;
- dctx = dst->data;
- dctx->md = sctx->md;
- HMAC_CTX_init(&dctx->ctx);
- if (!HMAC_CTX_copy(&dctx->ctx, &sctx->ctx))
- return 0;
- if (sctx->ktmp.data)
- {
- if (!ASN1_OCTET_STRING_set(&dctx->ktmp,
- sctx->ktmp.data, sctx->ktmp.length))
- return 0;
- }
- return 1;
- }
+{
+ HMAC_PKEY_CTX *sctx, *dctx;
+ if (!pkey_hmac_init(dst))
+ return 0;
+ sctx = src->data;
+ dctx = dst->data;
+ dctx->md = sctx->md;
+ HMAC_CTX_init(&dctx->ctx);
+ if (!HMAC_CTX_copy(&dctx->ctx, &sctx->ctx))
+ return 0;
+ if (sctx->ktmp.data) {
+ if (!ASN1_OCTET_STRING_set(&dctx->ktmp,
+ sctx->ktmp.data, sctx->ktmp.length))
+ return 0;
+ }
+ return 1;
+}
static void pkey_hmac_cleanup(EVP_PKEY_CTX *ctx)
- {
- HMAC_PKEY_CTX *hctx = ctx->data;
- HMAC_CTX_cleanup(&hctx->ctx);
- if (hctx->ktmp.data)
- {
- if (hctx->ktmp.length)
- OPENSSL_cleanse(hctx->ktmp.data, hctx->ktmp.length);
- OPENSSL_free(hctx->ktmp.data);
- hctx->ktmp.data = NULL;
- }
- OPENSSL_free(hctx);
- }
+{
+ HMAC_PKEY_CTX *hctx = ctx->data;
+ HMAC_CTX_cleanup(&hctx->ctx);
+ if (hctx->ktmp.data) {
+ if (hctx->ktmp.length)
+ OPENSSL_cleanse(hctx->ktmp.data, hctx->ktmp.length);
+ OPENSSL_free(hctx->ktmp.data);
+ hctx->ktmp.data = NULL;
+ }
+ OPENSSL_free(hctx);
+}
static int pkey_hmac_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
- {
- ASN1_OCTET_STRING *hkey = NULL;
- HMAC_PKEY_CTX *hctx = ctx->data;
- if (!hctx->ktmp.data)
- return 0;
- hkey = ASN1_OCTET_STRING_dup(&hctx->ktmp);
- if (!hkey)
- return 0;
- EVP_PKEY_assign(pkey, EVP_PKEY_HMAC, hkey);
-
- return 1;
- }
-
-static int int_update(EVP_MD_CTX *ctx,const void *data,size_t count)
- {
- HMAC_PKEY_CTX *hctx = ctx->pctx->data;
- if (!HMAC_Update(&hctx->ctx, data, count))
- return 0;
- return 1;
- }
+{
+ ASN1_OCTET_STRING *hkey = NULL;
+ HMAC_PKEY_CTX *hctx = ctx->data;
+ if (!hctx->ktmp.data)
+ return 0;
+ hkey = ASN1_OCTET_STRING_dup(&hctx->ktmp);
+ if (!hkey)
+ return 0;
+ EVP_PKEY_assign(pkey, EVP_PKEY_HMAC, hkey);
+
+ return 1;
+}
+
+static int int_update(EVP_MD_CTX *ctx, const void *data, size_t count)
+{
+ HMAC_PKEY_CTX *hctx = ctx->pctx->data;
+ if (!HMAC_Update(&hctx->ctx, data, count))
+ return 0;
+ return 1;
+}
static int hmac_signctx_init(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx)
- {
- HMAC_PKEY_CTX *hctx = ctx->data;
- HMAC_CTX_set_flags(&hctx->ctx, mctx->flags & ~EVP_MD_CTX_FLAG_NO_INIT);
- EVP_MD_CTX_set_flags(mctx, EVP_MD_CTX_FLAG_NO_INIT);
- mctx->update = int_update;
- return 1;
- }
+{
+ HMAC_PKEY_CTX *hctx = ctx->data;
+ HMAC_CTX_set_flags(&hctx->ctx, mctx->flags & ~EVP_MD_CTX_FLAG_NO_INIT);
+ EVP_MD_CTX_set_flags(mctx, EVP_MD_CTX_FLAG_NO_INIT);
+ mctx->update = int_update;
+ return 1;
+}
static int hmac_signctx(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
- EVP_MD_CTX *mctx)
- {
- unsigned int hlen;
- HMAC_PKEY_CTX *hctx = ctx->data;
- int l = EVP_MD_CTX_size(mctx);
-
- if (l < 0)
- return 0;
- *siglen = l;
- if (!sig)
- return 1;
-
- if (!HMAC_Final(&hctx->ctx, sig, &hlen))
- return 0;
- *siglen = (size_t)hlen;
- return 1;
- }
+ EVP_MD_CTX *mctx)
+{
+ unsigned int hlen;
+ HMAC_PKEY_CTX *hctx = ctx->data;
+ int l = EVP_MD_CTX_size(mctx);
+
+ if (l < 0)
+ return 0;
+ *siglen = l;
+ if (!sig)
+ return 1;
+
+ if (!HMAC_Final(&hctx->ctx, sig, &hlen))
+ return 0;
+ *siglen = (size_t)hlen;
+ return 1;
+}
static int pkey_hmac_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2)
- {
- HMAC_PKEY_CTX *hctx = ctx->data;
- ASN1_OCTET_STRING *key;
- switch (type)
- {
-
- case EVP_PKEY_CTRL_SET_MAC_KEY:
- if ((!p2 && p1 > 0) || (p1 < -1))
- return 0;
- if (!ASN1_OCTET_STRING_set(&hctx->ktmp, p2, p1))
- return 0;
- break;
-
- case EVP_PKEY_CTRL_MD:
- hctx->md = p2;
- break;
-
- case EVP_PKEY_CTRL_DIGESTINIT:
- key = (ASN1_OCTET_STRING *)ctx->pkey->pkey.ptr;
- if (!HMAC_Init_ex(&hctx->ctx, key->data, key->length, hctx->md,
- ctx->engine))
- return 0;
- break;
-
- default:
- return -2;
-
- }
- return 1;
- }
+{
+ HMAC_PKEY_CTX *hctx = ctx->data;
+ ASN1_OCTET_STRING *key;
+ switch (type) {
+
+ case EVP_PKEY_CTRL_SET_MAC_KEY:
+ if ((!p2 && p1 > 0) || (p1 < -1))
+ return 0;
+ if (!ASN1_OCTET_STRING_set(&hctx->ktmp, p2, p1))
+ return 0;
+ break;
+
+ case EVP_PKEY_CTRL_MD:
+ hctx->md = p2;
+ break;
+
+ case EVP_PKEY_CTRL_DIGESTINIT:
+ key = (ASN1_OCTET_STRING *)ctx->pkey->pkey.ptr;
+ if (!HMAC_Init_ex(&hctx->ctx, key->data, key->length, hctx->md,
+ ctx->engine))
+ return 0;
+ break;
+
+ default:
+ return -2;
+
+ }
+ return 1;
+}
static int pkey_hmac_ctrl_str(EVP_PKEY_CTX *ctx,
- const char *type, const char *value)
- {
- if (!value)
- {
- return 0;
- }
- if (!strcmp(type, "key"))
- {
- void *p = (void *)value;
- return pkey_hmac_ctrl(ctx, EVP_PKEY_CTRL_SET_MAC_KEY,
- -1, p);
- }
- if (!strcmp(type, "hexkey"))
- {
- unsigned char *key;
- int r;
- long keylen;
- key = string_to_hex(value, &keylen);
- if (!key)
- return 0;
- r = pkey_hmac_ctrl(ctx, EVP_PKEY_CTRL_SET_MAC_KEY, keylen, key);
- OPENSSL_free(key);
- return r;
- }
- return -2;
- }
-
-const EVP_PKEY_METHOD hmac_pkey_meth =
- {
- EVP_PKEY_HMAC,
- 0,
- pkey_hmac_init,
- pkey_hmac_copy,
- pkey_hmac_cleanup,
-
- 0, 0,
-
- 0,
- pkey_hmac_keygen,
-
- 0, 0,
-
- 0, 0,
-
- 0,0,
-
- hmac_signctx_init,
- hmac_signctx,
-
- 0,0,
-
- 0,0,
-
- 0,0,
-
- 0,0,
-
- pkey_hmac_ctrl,
- pkey_hmac_ctrl_str
-
- };
+ const char *type, const char *value)
+{
+ if (!value) {
+ return 0;
+ }
+ if (!strcmp(type, "key")) {
+ void *p = (void *)value;
+ return pkey_hmac_ctrl(ctx, EVP_PKEY_CTRL_SET_MAC_KEY, -1, p);
+ }
+ if (!strcmp(type, "hexkey")) {
+ unsigned char *key;
+ int r;
+ long keylen;
+ key = string_to_hex(value, &keylen);
+ if (!key)
+ return 0;
+ r = pkey_hmac_ctrl(ctx, EVP_PKEY_CTRL_SET_MAC_KEY, keylen, key);
+ OPENSSL_free(key);
+ return r;
+ }
+ return -2;
+}
+
+const EVP_PKEY_METHOD hmac_pkey_meth = {
+ EVP_PKEY_HMAC,
+ 0,
+ pkey_hmac_init,
+ pkey_hmac_copy,
+ pkey_hmac_cleanup,
+
+ 0, 0,
+
+ 0,
+ pkey_hmac_keygen,
+
+ 0, 0,
+
+ 0, 0,
+
+ 0, 0,
+
+ hmac_signctx_init,
+ hmac_signctx,
+
+ 0, 0,
+
+ 0, 0,
+
+ 0, 0,
+
+ 0, 0,
+
+ pkey_hmac_ctrl,
+ pkey_hmac_ctrl_str
+};