1 files changed, 440 insertions, 0 deletions
diff --git a/src/crypto/evp/evp.c b/src/crypto/evp/evp.c
new file mode 100644
index 0000000..8a1d513
--- /dev/null
+++ b/src/crypto/evp/evp.c
@@ -0,0 +1,440 @@
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    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 the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young (eay@cryptsoft.com)"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#include <openssl/evp.h>
+
+#include <assert.h>
+#include <string.h>
+
+#include <openssl/bio.h>
+#include <openssl/dh.h>
+#include <openssl/dsa.h>
+#include <openssl/ec.h>
+#include <openssl/err.h>
+#include <openssl/mem.h>
+#include <openssl/obj.h>
+#include <openssl/rsa.h>
+
+#include "internal.h"
+
+
+extern const EVP_PKEY_ASN1_METHOD ec_asn1_meth;
+extern const EVP_PKEY_ASN1_METHOD hmac_asn1_meth;
+extern const EVP_PKEY_ASN1_METHOD rsa_asn1_meth;
+
+EVP_PKEY *EVP_PKEY_new(void) {
+  EVP_PKEY *ret;
+
+  ret = OPENSSL_malloc(sizeof(EVP_PKEY));
+  if (ret == NULL) {
+    OPENSSL_PUT_ERROR(EVP, EVP_PKEY_new, ERR_R_MALLOC_FAILURE);
+    return NULL;
+  }
+
+  memset(ret, 0, sizeof(EVP_PKEY));
+  ret->type = EVP_PKEY_NONE;
+  ret->references = 1;
+
+  return ret;
+}
+
+static void free_it(EVP_PKEY *pkey) {
+  if (pkey->ameth && pkey->ameth->pkey_free) {
+    pkey->ameth->pkey_free(pkey);
+    pkey->pkey.ptr = NULL;
+    pkey->type = EVP_PKEY_NONE;
+  }
+}
+
+void EVP_PKEY_free(EVP_PKEY *pkey) {
+  if (pkey == NULL) {
+    return;
+  }
+
+  if (CRYPTO_add(&pkey->references, -1, CRYPTO_LOCK_EVP_PKEY)) {
+    return;
+  }
+
+  free_it(pkey);
+  if (pkey->attributes) {
+    /* TODO(fork): layering: X509_ATTRIBUTE_free is an X.509 function. In
+     * practice this path isn't called but should be removed in the future. */
+    /*sk_X509_ATTRIBUTE_pop_free(pkey->attributes, X509_ATTRIBUTE_free);*/
+    assert(0);
+  }
+  OPENSSL_free(pkey);
+}
+
+int EVP_PKEY_is_opaque(const EVP_PKEY *pkey) {
+  if (pkey->ameth && pkey->ameth->pkey_opaque) {
+    return pkey->ameth->pkey_opaque(pkey);
+  }
+  return 0;
+}
+
+int EVP_PKEY_supports_digest(const EVP_PKEY *pkey, const EVP_MD *md) {
+  if (pkey->ameth && pkey->ameth->pkey_supports_digest) {
+    return pkey->ameth->pkey_supports_digest(pkey, md);
+  }
+  return 1;
+}
+
+int EVP_PKEY_cmp(const EVP_PKEY *a, const EVP_PKEY *b) {
+  if (a->type != b->type) {
+    return -1;
+  }
+
+  if (a->ameth) {
+    int ret;
+    /* Compare parameters if the algorithm has them */
+    if (a->ameth->param_cmp) {
+      ret = a->ameth->param_cmp(a, b);
+      if (ret <= 0)
+        return ret;
+    }
+
+    if (a->ameth->pub_cmp) {
+      return a->ameth->pub_cmp(a, b);
+    }
+  }
+
+  return -2;
+}
+
+EVP_PKEY *EVP_PKEY_dup(EVP_PKEY *pkey) {
+  CRYPTO_add(&pkey->references, 1, CRYPTO_LOCK_EVP_PKEY);
+  return pkey;
+}
+
+int EVP_PKEY_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from) {
+  if (to->type != from->type) {
+    OPENSSL_PUT_ERROR(EVP, EVP_PKEY_copy_parameters, EVP_R_DIFFERENT_KEY_TYPES);
+    goto err;
+  }
+
+  if (EVP_PKEY_missing_parameters(from)) {
+    OPENSSL_PUT_ERROR(EVP, EVP_PKEY_copy_parameters, EVP_R_MISSING_PARAMETERS);
+    goto err;
+  }
+
+  if (from->ameth && from->ameth->param_copy) {
+    return from->ameth->param_copy(to, from);
+  }
+
+err:
+  return 0;
+}
+
+int EVP_PKEY_missing_parameters(const EVP_PKEY *pkey) {
+  if (pkey->ameth && pkey->ameth->param_missing) {
+    return pkey->ameth->param_missing(pkey);
+  }
+  return 0;
+}
+
+int EVP_PKEY_size(const EVP_PKEY *pkey) {
+  if (pkey && pkey->ameth && pkey->ameth->pkey_size) {
+    return pkey->ameth->pkey_size(pkey);
+  }
+  return 0;
+}
+
+int EVP_PKEY_bits(EVP_PKEY *pkey) {
+  if (pkey && pkey->ameth && pkey->ameth->pkey_bits) {
+    return pkey->ameth->pkey_bits(pkey);
+  }
+  return 0;
+}
+
+int EVP_PKEY_id(const EVP_PKEY *pkey) {
+  return pkey->type;
+}
+
+/* TODO(fork): remove the first argument. */
+const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find(ENGINE **pengine, int nid) {
+  switch (nid) {
+    case EVP_PKEY_RSA:
+    case EVP_PKEY_RSA2:
+      return &rsa_asn1_meth;
+    case EVP_PKEY_HMAC:
+      return &hmac_asn1_meth;
+    case EVP_PKEY_EC:
+      return &ec_asn1_meth;
+    default:
+      return NULL;
+  }
+}
+
+int EVP_PKEY_type(int nid) {
+  const EVP_PKEY_ASN1_METHOD *meth = EVP_PKEY_asn1_find(NULL, nid);
+  if (meth == NULL) {
+    return NID_undef;
+  }
+  return meth->pkey_id;
+}
+
+EVP_PKEY *EVP_PKEY_new_mac_key(int type, ENGINE *e, const uint8_t *mac_key,
+                               size_t mac_key_len) {
+  EVP_PKEY_CTX *mac_ctx = NULL;
+  EVP_PKEY *ret = NULL;
+
+  mac_ctx = EVP_PKEY_CTX_new_id(type, e);
+  if (!mac_ctx) {
+    return NULL;
+  }
+
+  if (EVP_PKEY_keygen_init(mac_ctx) <= 0 ||
+      EVP_PKEY_CTX_ctrl(mac_ctx, -1, EVP_PKEY_OP_KEYGEN,
+                        EVP_PKEY_CTRL_SET_MAC_KEY, mac_key_len,
+                        (uint8_t *)mac_key) <= 0 ||
+      EVP_PKEY_keygen(mac_ctx, &ret) <= 0) {
+    ret = NULL;
+    goto merr;
+  }
+
+merr:
+  if (mac_ctx)
+    EVP_PKEY_CTX_free(mac_ctx);
+  return ret;
+}
+
+int EVP_PKEY_set1_RSA(EVP_PKEY *pkey, RSA *key) {
+  if (EVP_PKEY_assign_RSA(pkey, key)) {
+    RSA_up_ref(key);
+    return 1;
+  }
+  return 0;
+}
+
+int EVP_PKEY_assign_RSA(EVP_PKEY *pkey, RSA *key) {
+  return EVP_PKEY_assign(pkey, EVP_PKEY_RSA, key);
+}
+
+RSA *EVP_PKEY_get1_RSA(EVP_PKEY *pkey) {
+  if (pkey->type != EVP_PKEY_RSA) {
+    OPENSSL_PUT_ERROR(EVP, EVP_PKEY_get1_RSA, EVP_R_EXPECTING_AN_RSA_KEY);
+    return NULL;
+  }
+  RSA_up_ref(pkey->pkey.rsa);
+  return pkey->pkey.rsa;
+}
+
+int EVP_PKEY_set1_DSA(EVP_PKEY *pkey, DSA *key) {
+  if (EVP_PKEY_assign_DSA(pkey, key)) {
+    DSA_up_ref(key);
+    return 1;
+  }
+  return 0;
+}
+
+int EVP_PKEY_assign_DSA(EVP_PKEY *pkey, DSA *key) {
+  return EVP_PKEY_assign(pkey, EVP_PKEY_DSA, key);
+}
+
+DSA *EVP_PKEY_get1_DSA(EVP_PKEY *pkey) {
+  if (pkey->type != EVP_PKEY_DSA) {
+    OPENSSL_PUT_ERROR(EVP, EVP_PKEY_get1_DSA, EVP_R_EXPECTING_A_DSA_KEY);
+    return NULL;
+  }
+  DSA_up_ref(pkey->pkey.dsa);
+  return pkey->pkey.dsa;
+}
+
+int EVP_PKEY_set1_EC_KEY(EVP_PKEY *pkey, EC_KEY *key) {
+  if (EVP_PKEY_assign_EC_KEY(pkey, key)) {
+    EC_KEY_up_ref(key);
+    return 1;
+  }
+  return 0;
+}
+
+int EVP_PKEY_assign_EC_KEY(EVP_PKEY *pkey, EC_KEY *key) {
+  return EVP_PKEY_assign(pkey, EVP_PKEY_EC, key);
+}
+
+EC_KEY *EVP_PKEY_get1_EC_KEY(EVP_PKEY *pkey) {
+  if (pkey->type != EVP_PKEY_EC) {
+    OPENSSL_PUT_ERROR(EVP, EVP_PKEY_get1_EC_KEY, EVP_R_EXPECTING_AN_EC_KEY_KEY);
+    return NULL;
+  }
+  EC_KEY_up_ref(pkey->pkey.ec);
+  return pkey->pkey.ec;
+}
+
+int EVP_PKEY_set1_DH(EVP_PKEY *pkey, DH *key) {
+  if (EVP_PKEY_assign_DH(pkey, key)) {
+    DH_up_ref(key);
+    return 1;
+  }
+  return 0;
+}
+
+int EVP_PKEY_assign_DH(EVP_PKEY *pkey, DH *key) {
+  return EVP_PKEY_assign(pkey, EVP_PKEY_EC, key);
+}
+
+DH *EVP_PKEY_get1_DH(EVP_PKEY *pkey) {
+  if (pkey->type != EVP_PKEY_DH) {
+    OPENSSL_PUT_ERROR(EVP, EVP_PKEY_get1_DH, EVP_R_EXPECTING_A_DH_KEY);
+    return NULL;
+  }
+  DH_up_ref(pkey->pkey.dh);
+  return pkey->pkey.dh;
+}
+
+int EVP_PKEY_assign(EVP_PKEY *pkey, int type, void *key) {
+  if (!EVP_PKEY_set_type(pkey, type)) {
+    return 0;
+  }
+  pkey->pkey.ptr = key;
+  return key != NULL;
+}
+
+const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find_str(ENGINE **pengine,
+                                                   const char *name,
+                                                   size_t len) {
+  if (len == 3 && memcmp(name, "RSA", 3) == 0) {
+    return &rsa_asn1_meth;
+  } else if (len == 4 && memcmp(name, "HMAC", 4) == 0) {
+    return &hmac_asn1_meth;
+  } if (len == 2 && memcmp(name, "EC", 2) == 0) {
+    return &ec_asn1_meth;
+  }
+  return NULL;
+}
+
+int EVP_PKEY_set_type(EVP_PKEY *pkey, int type) {
+  const EVP_PKEY_ASN1_METHOD *ameth;
+
+  if (pkey && pkey->pkey.ptr) {
+    free_it(pkey);
+  }
+
+  ameth = EVP_PKEY_asn1_find(NULL, type);
+  if (ameth == NULL) {
+    OPENSSL_PUT_ERROR(EVP, EVP_PKEY_set_type, EVP_R_UNSUPPORTED_ALGORITHM);
+    ERR_add_error_dataf("algorithm %d (%s)", type, OBJ_nid2sn(type));
+    return 0;
+  }
+
+  if (pkey) {
+    pkey->ameth = ameth;
+    pkey->type = pkey->ameth->pkey_id;
+  }
+
+  return 1;
+}
+
+
+
+int EVP_PKEY_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b) {
+  if (a->type != b->type) {
+    return -1;
+  }
+  if (a->ameth && a->ameth->param_cmp) {
+    return a->ameth->param_cmp(a, b);
+  }
+  return -2;
+}
+
+static int print_unsupported(BIO *out, const EVP_PKEY *pkey, int indent,
+                             const char *kstr) {
+  BIO_indent(out, indent, 128);
+  BIO_printf(out, "%s algorithm \"%s\" unsupported\n", kstr,
+             OBJ_nid2ln(pkey->type));
+  return 1;
+}
+
+int EVP_PKEY_print_public(BIO *out, const EVP_PKEY *pkey, int indent,
+                          ASN1_PCTX *pctx) {
+  if (pkey->ameth && pkey->ameth->pub_print) {
+    return pkey->ameth->pub_print(out, pkey, indent, pctx);
+  }
+
+  return print_unsupported(out, pkey, indent, "Public Key");
+}
+
+int EVP_PKEY_print_private(BIO *out, const EVP_PKEY *pkey, int indent,
+                           ASN1_PCTX *pctx) {
+  if (pkey->ameth && pkey->ameth->priv_print) {
+    return pkey->ameth->priv_print(out, pkey, indent, pctx);
+  }
+
+  return print_unsupported(out, pkey, indent, "Private Key");
+}
+
+int EVP_PKEY_print_params(BIO *out, const EVP_PKEY *pkey, int indent,
+                          ASN1_PCTX *pctx) {
+  if (pkey->ameth && pkey->ameth->param_print) {
+    return pkey->ameth->param_print(out, pkey, indent, pctx);
+  }
+
+  return print_unsupported(out, pkey, indent, "Parameters");
+}
+
+int EVP_PKEY_CTX_set_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD *md) {
+  return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG, EVP_PKEY_CTRL_MD, 0,
+                           (void *)md);
+}
+
+int EVP_PKEY_CTX_get_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD **out_md) {
+  return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG, EVP_PKEY_CTRL_GET_MD,
+                           0, (void *)out_md);
+}
+
+void OpenSSL_add_all_algorithms(void) {}
+
+void EVP_cleanup(void) {}