Security-57031.1.35.tar.gz

[apple/security.git] / libsecurity_transform / lib / Digest_block.c

diff --git a/libsecurity_transform/lib/Digest_block.c b/libsecurity_transform/lib/Digest_block.c
deleted file mode 100644 (file)
index cf44469..0000000
--- a/libsecurity_transform/lib/Digest_block.c
+++ /dev/null
@@ -1,85 +0,0 @@
-/*
- *  Digest_block.cpp
- *  libsecurity_transform
- *
- *  Created by JOsborne on 2/20/10.
- *  Copyright 2010 Apple. All rights reserved.
- *
- */
-
-#include "Digest_block.h"
-#include "SecCustomTransform.h"
-#include <CommonCrypto/CommonDigest.h>
-#include "Utilities.h"
-
-extern const CFStringRef kSecDigestMD2, kSecDigestMD4, kSecDigestMD5, kSecDigestSHA1, kSecDigestSHA2;
-extern const CFStringRef kSecDigestTypeAttribute, kSecDigestLengthAttribute;
-
-
-static CFStringRef kCustomDigestTransformName = CFSTR("com.apple.security.digest");
-
-SecTransformRef SecDigestTransformCreate_block(SecProviderRef device, CFTypeRef digestType, CFIndex digestLength, CFErrorRef* error) {
-       static dispatch_once_t inited;
-       __block CFStringRef current_algo;
-       __block CFIndex current_length;
-       
-       dispatch_once(&inited, ^{
-               SecTransformRegister(kCustomDigestTransformName, ^(CFStringRef name, SecTransformRebindActionBlock rebind) {
-                       rebind(kSecTransformActionProcessData, NULL, ^(SecTransformRef tr, CFDataRef d, SecTransformSendAttribute set) {
-                               set(kSecDigestTypeAttribute, kSecDigestSHA2);
-                       });
-                       rebind(SecTransformSetAttributeAction, NULL, ^(SecTransformRef tr, CFStringRef name, CFTypeRef value, SecTransformSendAttribute set) {
-                               Boolean algo_changed = FALSE;
-                               if (name == kSecDigestTypeAttribute || CFStringCompare(kSecDigestTypeAttribute, name, 0) == kCFCompareEqualTo) {
-                                       algo_changed = TRUE;
-                                       current_algo = CFStringCreateCopy(NULL, (CFStringRef)value);
-
-                               } else if (name == kSecDigestLengthAttribute || CFStringCompare(kSecDigestLengthAttribute, name, 0) == kCFCompareEqualTo) {
-                                       algo_changed = TRUE;
-                                       CFNumberGetValue(value, kCFNumberCFIndexType, &current_length);
-                               } else if (CFStringCompare(kSecTransformInputAttributeName, name, 0) == kCFCompareEqualTo) {
-                                       return (CFTypeRef)CreateSecTransformErrorRef(kSecTransformErrorInvalidType, "The type %@ is invalid.", name);
-                               } else {
-                                       return (CFTypeRef)CreateSecTransformErrorRef(kSecTransformErrorInvalidType, "The type %@ is invalid.", name);
-                               }
-                               if (!algo_changed) {
-                                       return value;
-                               }
-                               
-                               if (current_algo == kSecDigestSHA2 || CFStringCompare(current_algo, kSecDigestSHA2, 0) == kCFCompareEqualTo) {
-                                       switch (current_length) {
-                                               case 0:
-                                               case 512: {
-                                                       __block CC_SHA512_CTX cc_context;
-                                                       CC_SHA512_Init(&cc_context);
-                                                       rebind(kSecTransformActionProcessData, NULL, ^(SecTransformRef tr, CFDataRef d, SecTransformSendAttribute set) {
-                                                               if (d) {
-                                                                       CC_SHA512_Update(&cc_context, CFDataGetBytePtr(d), CFDataGetLength(d));
-                                                                       return SecTransformNoData();
-                                                               } else {
-                                                                       u_int8_t digest_buffer[CC_SHA512_DIGEST_LENGTH];
-
-                                                                       CC_SHA512_Final(digest_buffer, &cc_context);
-                                                                       set(kSecTransformOutputAttributeName, CFDataCreate(NULL, digest_buffer, CC_SHA512_DIGEST_LENGTH));
-                                                                       return NULL;
-                                                               }
-                                                       });
-                                                       return value;
-                                               }
-                                       }
-                                       return (CFTypeRef)CreateSecTransformErrorRef(kSecTransformErrorInvalidLength, "Invalid length.");
-                               } else {
-                                       return (CFTypeRef)CreateSecTransformErrorRef(kSecTransformErrorInvalidAlgorithm, "Invalid algorithm.");
-                               }
-                       });
-               }, NULL);
-       });
-       
-       SecTransformRef dt = SecTransformCreate(kCustomDigestTransformName, NULL);
-       SecTransformSetAttribute(dt, kSecDigestTypeAttribute, digestType, error);
-       CFNumberRef dlen = CFNumberCreate(NULL, kCFNumberCFIndexType, &digestLength);
-       SecTransformSetAttribute(dt, kSecDigestLengthAttribute, dlen, error);
-       CFRelease(dlen);
-       
-       return dt;
-}