Adding mapbox-gl branch

2015-03-16 18:50:27 +01:00
parent 7985f030fa
commit 57ee7f52fd
3109 changed files with 943365 additions and 0 deletions
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+// Copyright 2014 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview SHA-512/256 cryptographic hash.
+ *
+ * WARNING:  SHA-256 and SHA-512/256 are different members of the SHA-2
+ * family of hashes.  Although both give 32-byte results, the two results
+ * should bear no relationship to each other.
+ *
+ * Please be careful before using this hash function.
+ * <p>
+ * Usage:
+ *   var sha512_256 = new goog.crypt.Sha512_256();
+ *   sha512_256.update(bytes);
+ *   var hash = sha512_256.digest();
+ *
+ * @author fy@google.com (Frank Yellin)
+ */
+
+goog.provide('goog.crypt.Sha512_256');
+
+goog.require('goog.crypt.Sha2_64bit');
+
+
+
+/**
+ * Constructs a SHA-512/256 cryptographic hash.
+ *
+ * @constructor
+ * @extends {goog.crypt.Sha2_64bit}
+ * @final
+ * @struct
+ */
+goog.crypt.Sha512_256 = function() {
+  goog.crypt.Sha512_256.base(this, 'constructor', 4  /* numHashBlocks */,
+      goog.crypt.Sha512_256.INIT_HASH_BLOCK_);
+};
+goog.inherits(goog.crypt.Sha512_256, goog.crypt.Sha2_64bit);
+
+
+/** @private {!Array<number>} */
+goog.crypt.Sha512_256.INIT_HASH_BLOCK_ = [
+  // Section 5.3.6.2 of
+  // csrc.nist.gov/publications/fips/fips180-4/fips-180-4.pdf
+  0x22312194, 0xFC2BF72C,  // H0
+  0x9F555FA3, 0xC84C64C2,  // H1
+  0x2393B86B, 0x6F53B151,  // H2
+  0x96387719, 0x5940EABD,  // H3
+  0x96283EE2, 0xA88EFFE3,  // H4
+  0xBE5E1E25, 0x53863992,  // H5
+  0x2B0199FC, 0x2C85B8AA,  // H6
+  0x0EB72DDC, 0x81C52CA2   // H7
+];