projects / apple / security.git / blame
| Commit | Line | Data |
|---|---|---|
| f380ce78 | 1 | /* |
| d8f41ccd | 2 | * Copyright (c) 2005-2011 Apple Inc. All Rights Reserved. |
| f380ce78 A |
3 | * |
| 4 | * @APPLE_LICENSE_HEADER_START@ | |
| 5 | * | |
| 6 | * This file contains Original Code and/or Modifications of Original Code | |
| 7 | * as defined in and that are subject to the Apple Public Source License | |
| 8 | * Version 2.0 (the 'License'). You may not use this file except in | |
| 9 | * compliance with the License. Please obtain a copy of the License at | |
| 10 | * http://www.opensource.apple.com/apsl/ and read it before using this | |
| 11 | * file. | |
| 12 | * | |
| 13 | * The Original Code and all software distributed under the License are | |
| 14 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 15 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
| 16 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 17 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. | |
| 18 | * Please see the License for the specific language governing rights and | |
| 19 | * limitations under the License. | |
| 20 | * | |
| 21 | * @APPLE_LICENSE_HEADER_END@ | |
| 22 | */ | |
| b1ab9ed8 A |
23 | |
| 24 | // | |
| 25 | // Fast hasing support | |
| 26 | // | |
| 27 | #include "hashing.h" | |
| 28 | #include "unix++.h" | |
| 29 | ||
| 30 | ||
| 31 | namespace Security { | |
| 32 | ||
| 33 | ||
| 34 | // | |
| 35 | // Basic DynamicHash infrastructure | |
| 36 | // | |
| 37 | DynamicHash::~DynamicHash() | |
| 38 | { | |
| 39 | // virtual | |
| 40 | } | |
| 41 | ||
| 42 | ||
| 43 | // | |
| 44 | // CommonCrypto-based DynamicHash instances | |
| 45 | // | |
| 5c19dc3a | 46 | CCHashInstance::CCHashInstance(CCDigestAlg alg, size_t truncate) |
| b1ab9ed8 A |
47 | { |
| 48 | if (!(mDigest = CCDigestCreate(alg))) | |
| 49 | UnixError::throwMe(ENOMEM); | |
| 5c19dc3a | 50 | mTruncate = truncate; |
| b1ab9ed8 | 51 | } |
| 5c19dc3a A |
52 | |
| 53 | void CCHashInstance::finish(unsigned char *digest) | |
| 54 | { | |
| 55 | if (mTruncate == 0) { | |
| 56 | CCDigestFinal(mDigest, digest); | |
| 57 | } else { | |
| 58 | unsigned char fullDigest[CCDigestOutputSize(mDigest)]; | |
| 59 | CCDigestFinal(mDigest, fullDigest); | |
| 60 | memcpy(digest, fullDigest, mTruncate); | |
| 61 | } | |
| 62 | } | |
| 63 | ||
| b1ab9ed8 A |
64 | |
| 65 | ||
| 66 | } // Security |