Security-57031.1.35.tar.gz

[apple/security.git] / Security / libsecurity_apple_csp / lib / pbkdDigest.h

diff --git a/Security/libsecurity_apple_csp/lib/pbkdDigest.h b/Security/libsecurity_apple_csp/lib/pbkdDigest.h
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+/*
+ * Copyright (c) 2003,2011,2014 Apple 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.h - SHA1/MD5 digest object for HMAC and PBE routines
+ */
+ 
+#ifndef        _PBKD_DIGEST_H_
+#define _PBKD_DIGEST_H_
+
+#include <Security/cssmtype.h>
+#include <CommonCrypto/CommonDigest.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define kSHA1DigestSize                CC_SHA1_DIGEST_LENGTH
+#define kSHA1BlockSize                 CC_SHA1_BLOCK_BYTES
+
+#define kMD5DigestSize                 CC_MD5_DIGEST_LENGTH
+#define kMD5BlockSize                          CC_MD5_BLOCK_BYTES
+
+#define kMD2DigestSize                 CC_MD2_DIGEST_LENGTH
+#define kMD2BlockSize                          CC_MD2_BLOCK_BYTES
+
+#define kMaxDigestSize                 kSHA1DigestSize
+
+typedef int (*DigestInitFcn)(void *ctx);
+typedef int (*DigestUpdateFcn)(void *ctx, const void *data, unsigned long len);
+typedef int (*DigestFinalFcn)(void *md, void *c);
+
+/* callouts to eay/libmd implementations */
+typedef struct {
+       DigestInitFcn           init;
+       DigestUpdateFcn         update;
+       DigestFinalFcn          final;
+} DigestOps;
+
+typedef        struct {
+       union {
+               CC_SHA1_CTX     sha1Context;
+               CC_MD5_CTX              md5Context;
+               CC_MD2_CTX              md2Context;
+       } dig;
+       DigestOps               *ops;
+       CSSM_ALGORITHMS hashAlg;
+} DigestCtx;
+
+/* Ops on a DigestCtx - all return zero on error, like the underlying digests do */
+int DigestCtxInit(
+       DigestCtx               *ctx,
+       CSSM_ALGORITHMS hashAlg);
+void DigestCtxFree(
+       DigestCtx       *ctx);
+int DigestCtxUpdate(
+       DigestCtx       *ctx,
+       const void      *textPtr,
+       uint32 textLen);
+int DigestCtxFinal(
+       DigestCtx       *ctx,
+       void            *digest);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _PBKD_DIGEST_H_ */
+