Security-57031.1.35.tar.gz

[apple/security.git] / Security / libsecurity_cryptkit / lib / NSMD5Hash.m

diff --git a/Security/libsecurity_cryptkit/lib/NSMD5Hash.m b/Security/libsecurity_cryptkit/lib/NSMD5Hash.m
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+++ b/Security/libsecurity_cryptkit/lib/NSMD5Hash.m
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+/* Copyright (c) 1998,2011,2014 Apple Inc.  All Rights Reserved.
+ *
+ * NOTICE: USE OF THE MATERIALS ACCOMPANYING THIS NOTICE IS SUBJECT
+ * TO THE TERMS OF THE SIGNED "FAST ELLIPTIC ENCRYPTION (FEE) REFERENCE
+ * SOURCE CODE EVALUATION AGREEMENT" BETWEEN APPLE, INC. AND THE
+ * ORIGINAL LICENSEE THAT OBTAINED THESE MATERIALS FROM APPLE,
+ * INC.  ANY USE OF THESE MATERIALS NOT PERMITTED BY SUCH AGREEMENT WILL
+ * EXPOSE YOU TO LIABILITY.
+ ***************************************************************************
+ *
+ * NSMD5Hash.h
+ *
+ * Revision History
+ * ----------------
+ * 28 Mar 97 at Apple
+ *     Created.
+ */
+
+/*
+ * Note: our _priv ivar is actually a feeHash pointer.
+ */
+#import "NSCryptors.h"
+#import "NSMD5Hash.h"
+#import "feeHash.h"
+#import "falloc.h"
+
+@implementation NSMD5Hash
+
++ digester
+{
+       return [[self alloc] init];
+}
+
+- init
+{
+       if(_priv == NULL) {
+               _priv = feeHashAlloc();
+       }
+       else {
+               feeHashReinit(_priv);
+       }
+       return self;
+}
+
+- (void)digestData:(NSData *)data
+{
+       if(_priv == NULL) {
+               return;
+       }
+       feeHashAddData(_priv, [data bytes], [data length]);
+}
+
+- (NSData *)messageDigest
+{
+       unsigned char *cp;
+       NSData *md;
+
+       if(_priv == NULL) {
+               return nil;
+       }
+       cp = feeHashDigest(_priv);
+       md = [NSData dataWithBytes:cp length:feeHashDigestLen()];
+       feeHashReinit(_priv);
+       return md;
+}
+
+- (NSData *)digestData:(NSData *)data withSalt:(NSData *)salt
+{
+       if(_priv == NULL) {
+               return nil;
+       }
+       if(salt != nil) {
+               [self digestData:salt];
+       }
+       [self digestData:data];
+       return [self messageDigest];
+}
+
+@end