X-Git-Url: https://git.saurik.com/apple/security.git/blobdiff_plain/72a12576750f52947eb043106ba5c12c0d07decf..b1ab9ed8d0e0f1c3b66d7daa8fd5564444c56195:/libsecurity_apple_csp/lib/pbkdDigest.cpp

diff --git a/libsecurity_apple_csp/lib/pbkdDigest.cpp b/libsecurity_apple_csp/lib/pbkdDigest.cpp
new file mode 100644
index 00000000..06dbea05
--- /dev/null
+++ b/libsecurity_apple_csp/lib/pbkdDigest.cpp
@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 2003 Apple Computer, Inc. All Rights Reserved.
+ * 
+ * The contents of this file constitute Original Code as defined in and are
+ * subject to the Apple Public Source License Version 1.2 (the 'License').
+ * You may not use this file except in compliance with the License. Please 
+ * obtain a copy of the License at http://www.apple.com/publicsource and 
+ * read it before using this file.
+ * 
+ * This Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
+ * Please see the License for the specific language governing rights and 
+ * limitations under the License.
+ */
+/*
+ * pbkdDigest.cpp - SHA1/MD5 digest object for HMAC and PBE routines
+ */
+
+#include "pbkdDigest.h"
+#include <Security/cssmerr.h>
+#include <string.h>
+
+/* the casts are necessary to cover the polymorphous context types */
+DigestOps Md2Ops = { 
+	(DigestInitFcn)CC_MD2_Init, 
+	(DigestUpdateFcn)CC_MD2_Update, 
+	(DigestFinalFcn)CC_MD2_Final
+};
+DigestOps Md5Ops = { 
+	(DigestInitFcn)CC_MD5_Init, 
+	(DigestUpdateFcn)CC_MD5_Update, 
+	(DigestFinalFcn)CC_MD5_Final
+};
+DigestOps Sha1Ops = { 
+	(DigestInitFcn)CC_SHA1_Init, 
+	(DigestUpdateFcn)CC_SHA1_Update, 
+	(DigestFinalFcn)CC_SHA1_Final
+};
+
+/* Ops on a DigestCtx - all return zero on error, like the underlying digests do */
+int DigestCtxInit(
+	DigestCtx 	*ctx,
+	CSSM_ALGORITHMS hashAlg)
+{
+	switch(hashAlg) {
+		case CSSM_ALGID_SHA1:
+			ctx->ops = &Sha1Ops;
+			break;
+		case CSSM_ALGID_MD5:
+			ctx->ops = &Md5Ops;
+			break;
+		case CSSM_ALGID_MD2:
+			ctx->ops = &Md2Ops;
+			break;
+		default:
+			return 0;
+	}
+	ctx->hashAlg = hashAlg;
+	return ctx->ops->init(&ctx->dig);
+}
+
+void DigestCtxFree(
+	DigestCtx 	*ctx)
+{
+	memset(ctx, 0, sizeof(DigestCtx));
+}
+
+int DigestCtxUpdate(
+	DigestCtx 	*ctx,
+	const void *textPtr,
+	uint32 textLen)
+{
+	return ctx->ops->update(&ctx->dig, textPtr, textLen);
+}
+
+int DigestCtxFinal(
+	DigestCtx 	*ctx,
+	void 		*digest)
+{
+	return ctx->ops->final(digest, &ctx->dig);
+}