projects / apple / security.git / blame
| Commit | Line | Data |
|---|---|---|
| b1ab9ed8 | 1 | /* |
| d8f41ccd | 2 | * Copyright (c) 2003,2011,2014 Apple Inc. All Rights Reserved. |
| b1ab9ed8 A |
3 | * |
| 4 | * The contents of this file constitute Original Code as defined in and are | |
| 5 | * subject to the Apple Public Source License Version 1.2 (the 'License'). | |
| 6 | * You may not use this file except in compliance with the License. Please | |
| 7 | * obtain a copy of the License at http://www.apple.com/publicsource and | |
| 8 | * read it before using this file. | |
| 9 | * | |
| 10 | * This Original Code and all software distributed under the License are | |
| 11 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 12 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
| 13 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 14 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. | |
| 15 | * Please see the License for the specific language governing rights and | |
| 16 | * limitations under the License. | |
| 17 | */ | |
| 18 | /* | |
| 19 | * pbkdDigest.cpp - SHA1/MD5 digest object for HMAC and PBE routines | |
| 20 | */ | |
| 21 | ||
| 22 | #include "pbkdDigest.h" | |
| 23 | #include <Security/cssmerr.h> | |
| 24 | #include <string.h> | |
| 25 | ||
| 26 | /* the casts are necessary to cover the polymorphous context types */ | |
| 27 | DigestOps Md2Ops = { | |
| 28 | (DigestInitFcn)CC_MD2_Init, | |
| 29 | (DigestUpdateFcn)CC_MD2_Update, | |
| 30 | (DigestFinalFcn)CC_MD2_Final | |
| 31 | }; | |
| 32 | DigestOps Md5Ops = { | |
| 33 | (DigestInitFcn)CC_MD5_Init, | |
| 34 | (DigestUpdateFcn)CC_MD5_Update, | |
| 35 | (DigestFinalFcn)CC_MD5_Final | |
| 36 | }; | |
| 37 | DigestOps Sha1Ops = { | |
| 38 | (DigestInitFcn)CC_SHA1_Init, | |
| 39 | (DigestUpdateFcn)CC_SHA1_Update, | |
| 40 | (DigestFinalFcn)CC_SHA1_Final | |
| 41 | }; | |
| 42 | ||
| 43 | /* Ops on a DigestCtx - all return zero on error, like the underlying digests do */ | |
| 44 | int DigestCtxInit( | |
| 45 | DigestCtx *ctx, | |
| 46 | CSSM_ALGORITHMS hashAlg) | |
| 47 | { | |
| 48 | switch(hashAlg) { | |
| 49 | case CSSM_ALGID_SHA1: | |
| 50 | ctx->ops = &Sha1Ops; | |
| 51 | break; | |
| 52 | case CSSM_ALGID_MD5: | |
| 53 | ctx->ops = &Md5Ops; | |
| 54 | break; | |
| 55 | case CSSM_ALGID_MD2: | |
| 56 | ctx->ops = &Md2Ops; | |
| 57 | break; | |
| 58 | default: | |
| 59 | return 0; | |
| 60 | } | |
| 61 | ctx->hashAlg = hashAlg; | |
| 62 | return ctx->ops->init(&ctx->dig); | |
| 63 | } | |
| 64 | ||
| 65 | void DigestCtxFree( | |
| 66 | DigestCtx *ctx) | |
| 67 | { | |
| 68 | memset(ctx, 0, sizeof(DigestCtx)); | |
| 69 | } | |
| 70 | ||
| 71 | int DigestCtxUpdate( | |
| 72 | DigestCtx *ctx, | |
| 73 | const void *textPtr, | |
| 74 | uint32 textLen) | |
| 75 | { | |
| 76 | return ctx->ops->update(&ctx->dig, textPtr, textLen); | |
| 77 | } | |
| 78 | ||
| 79 | int DigestCtxFinal( | |
| 80 | DigestCtx *ctx, | |
| 81 | void *digest) | |
| 82 | { | |
| 83 | return ctx->ops->final(digest, &ctx->dig); | |
| 84 | } |