Built motion from commit 6a09e18b.|2.6.11

[motion2.git] / legacy-libs / grpc-cloned / deps / grpc / third_party / boringssl / crypto / evp / p_ed25519.c

diff --git a/legacy-libs/grpc-cloned/deps/grpc/third_party/boringssl/crypto/evp/p_ed25519.c b/legacy-libs/grpc-cloned/deps/grpc/third_party/boringssl/crypto/evp/p_ed25519.c
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+++ b/legacy-libs/grpc-cloned/deps/grpc/third_party/boringssl/crypto/evp/p_ed25519.c
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+/* Copyright (c) 2017, Google Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
+
+#include <openssl/evp.h>
+
+#include <openssl/curve25519.h>
+#include <openssl/err.h>
+
+#include "internal.h"
+
+
+// Ed25519 has no parameters to copy.
+static int pkey_ed25519_copy(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src) { return 1; }
+
+static int pkey_ed25519_sign_message(EVP_PKEY_CTX *ctx, uint8_t *sig,
+                                     size_t *siglen, const uint8_t *tbs,
+                                     size_t tbslen) {
+  ED25519_KEY *key = ctx->pkey->pkey.ptr;
+  if (!key->has_private) {
+    OPENSSL_PUT_ERROR(EVP, EVP_R_NOT_A_PRIVATE_KEY);
+    return 0;
+  }
+
+  *siglen = 64;
+  if (sig == NULL) {
+    return 1;
+  }
+
+  return ED25519_sign(sig, tbs, tbslen, key->key.priv);
+}
+
+static int pkey_ed25519_verify_message(EVP_PKEY_CTX *ctx, const uint8_t *sig,
+                                       size_t siglen, const uint8_t *tbs,
+                                       size_t tbslen) {
+  ED25519_KEY *key = ctx->pkey->pkey.ptr;
+  if (siglen != 64 ||
+      !ED25519_verify(tbs, tbslen, sig, key->key.pub.value)) {
+    OPENSSL_PUT_ERROR(EVP, EVP_R_INVALID_SIGNATURE);
+    return 0;
+  }
+
+  return 1;
+}
+
+const EVP_PKEY_METHOD ed25519_pkey_meth = {
+    EVP_PKEY_ED25519,
+    NULL /* init */,
+    pkey_ed25519_copy,
+    NULL /* cleanup */,
+    NULL /* keygen */,
+    NULL /* sign */,
+    pkey_ed25519_sign_message,
+    NULL /* verify */,
+    pkey_ed25519_verify_message,
+    NULL /* verify_recover */,
+    NULL /* encrypt */,
+    NULL /* decrypt */,
+    NULL /* derive */,
+    NULL /* ctrl */,
+};