--- /dev/null
+/*
+ * Copyright (c) 2000-2001,2005-2007,2010-2012 Apple Inc. All Rights Reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ *
+ * The 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.
+ *
+ * @APPLE_LICENSE_HEADER_END@
+ */
+
+/*
+ * sslDigests.c - Interface between SSL and SHA, MD5 digest implementations
+ */
+
+#include "sslContext.h"
+#include "cryptType.h"
+#include "sslMemory.h"
+#include "sslDigests.h"
+#include "sslDebug.h"
+
+#include <CommonCrypto/CommonDigest.h>
+#include <string.h>
+
+#define DIGEST_PRINT 0
+#if DIGEST_PRINT
+#define dgprintf(s) printf s
+#else
+#define dgprintf(s)
+#endif
+
+const UInt8 SSLMACPad1[MAX_MAC_PADDING] =
+{
+ 0x36,0x36,0x36,0x36,0x36,0x36,0x36,0x36,
+ 0x36,0x36,0x36,0x36,0x36,0x36,0x36,0x36,
+ 0x36,0x36,0x36,0x36,0x36,0x36,0x36,0x36,
+ 0x36,0x36,0x36,0x36,0x36,0x36,0x36,0x36,
+ 0x36,0x36,0x36,0x36,0x36,0x36,0x36,0x36,
+ 0x36,0x36,0x36,0x36,0x36,0x36,0x36,0x36
+};
+
+const UInt8 SSLMACPad2[MAX_MAC_PADDING] =
+{
+ 0x5C,0x5C,0x5C,0x5C,0x5C,0x5C,0x5C,0x5C,
+ 0x5C,0x5C,0x5C,0x5C,0x5C,0x5C,0x5C,0x5C,
+ 0x5C,0x5C,0x5C,0x5C,0x5C,0x5C,0x5C,0x5C,
+ 0x5C,0x5C,0x5C,0x5C,0x5C,0x5C,0x5C,0x5C,
+ 0x5C,0x5C,0x5C,0x5C,0x5C,0x5C,0x5C,0x5C,
+ 0x5C,0x5C,0x5C,0x5C,0x5C,0x5C,0x5C,0x5C
+};
+
+/*
+ * Public general hash functions
+ */
+
+/*
+ * A convenience wrapper for HashReference.clone, which has the added benefit of
+ * allocating the state buffer for the caller.
+ */
+OSStatus
+CloneHashState(
+ const HashReference *ref,
+ const SSLBuffer *state,
+ SSLBuffer *newState,
+ SSLContext *ctx)
+{
+ OSStatus err;
+ if ((err = SSLAllocBuffer(newState, ref->contextSize, ctx)) != 0)
+ return err;
+ return ref->clone(state, newState);
+}
+
+/*
+ * Wrapper for HashReference.init.
+ */
+OSStatus
+ReadyHash(const HashReference *ref, SSLBuffer *state, SSLContext *ctx)
+{
+ OSStatus err;
+ if ((err = SSLAllocBuffer(state, ref->contextSize, ctx)) != 0)
+ return err;
+ return ref->init(state, ctx);
+}
+
+/*
+ * Wrapper for HashReference.close. Tolerates NULL state and frees it if it's
+ * there.
+ */
+OSStatus CloseHash(const HashReference *ref, SSLBuffer *state, SSLContext *ctx)
+{
+ OSStatus serr;
+
+ if(state->data == NULL) {
+ return noErr;
+ }
+ serr = ref->close(state, ctx);
+ if(serr) {
+ return serr;
+ }
+ return SSLFreeBuffer(state, ctx);
+}
+
+
+/*** NULL ***/
+static OSStatus HashNullInit(SSLBuffer *digestCtx, SSLContext *sslCtx) {
+ return noErr;
+}
+static OSStatus HashNullUpdate(SSLBuffer *digestCtx, const SSLBuffer *data) {
+ return noErr;
+}
+static OSStatus HashNullFinal(SSLBuffer *digestCtx, SSLBuffer *digest) {
+ return noErr;
+}
+static OSStatus HashNullClose(SSLBuffer *digestCtx, SSLContext *sslCtx) {
+ return noErr;
+}
+static OSStatus HashNullClone(const SSLBuffer *src, SSLBuffer *dest) {
+ return noErr;
+}
+
+/*** MD5 ***/
+static OSStatus HashMD5Init(SSLBuffer *digestCtx, SSLContext *sslCtx)
+{
+ assert(digestCtx->length >= sizeof(CC_MD5_CTX));
+ CC_MD5_CTX *ctx = (CC_MD5_CTX *)digestCtx->data;
+ CC_MD5_Init(ctx);
+ dgprintf(("###HashMD5Init ctx %p\n", ctx));
+ return noErr;
+}
+
+static OSStatus HashMD5Update(SSLBuffer *digestCtx, const SSLBuffer *data)
+{
+ /* 64 bits cast: safe, SSL records are always smaller than 2^32 bytes */
+ assert(digestCtx->length >= sizeof(CC_MD5_CTX));
+ CC_MD5_CTX *ctx = (CC_MD5_CTX *)digestCtx->data;
+ CC_MD5_Update(ctx, data->data, (CC_LONG)data->length);
+ return noErr;
+}
+
+static OSStatus HashMD5Final(SSLBuffer *digestCtx, SSLBuffer *digest)
+{
+ assert(digestCtx->length >= sizeof(CC_MD5_CTX));
+ CC_MD5_CTX *ctx = (CC_MD5_CTX *)digestCtx->data;
+ dgprintf(("###HashMD5Final ctx %p\n", ctx));
+ assert(digest->length >= CC_MD5_DIGEST_LENGTH);
+ //if (digest->length < CC_MD5_DIGEST_LENGTH)
+ // return errSSLCrypto;
+ CC_MD5_Final(digest->data, ctx);
+ digest->length = CC_MD5_DIGEST_LENGTH;
+ return noErr;
+}
+
+static OSStatus HashMD5Close(SSLBuffer *digestCtx, SSLContext *sslCtx)
+{
+ assert(digestCtx->length >= sizeof(CC_MD5_CTX));
+ return noErr;
+}
+
+static OSStatus HashMD5Clone(const SSLBuffer *src, SSLBuffer *dst)
+{
+ CC_MD5_CTX *srcCtx;
+ CC_MD5_CTX *dstCtx;
+
+ assert(src->length >= sizeof(CC_MD5_CTX));
+ assert(dst->length >= sizeof(CC_MD5_CTX));
+
+ srcCtx = (CC_MD5_CTX *)src->data;
+ dstCtx = (CC_MD5_CTX *)dst->data;
+ dgprintf(("###HashMD5Clone srcCtx %p dstCtx %p\n", srcCtx, dstCtx));
+
+ memcpy(dstCtx, srcCtx, sizeof(CC_MD5_CTX));
+ return noErr;
+}
+
+/*** SHA1 ***/
+static OSStatus HashSHA1Init(SSLBuffer *digestCtx, SSLContext *sslCtx)
+{
+ assert(digestCtx->length >= sizeof(CC_SHA1_CTX));
+ CC_SHA1_CTX *ctx = (CC_SHA1_CTX *)digestCtx->data;
+ CC_SHA1_Init(ctx);
+ dgprintf(("###HashSHA1Init ctx %p\n", ctx));
+ return noErr;
+}
+
+static OSStatus HashSHA1Update(SSLBuffer *digestCtx, const SSLBuffer *data)
+{
+ /* 64 bits cast: safe, SSL records are always smaller than 2^32 bytes */
+ assert(digestCtx->length >= sizeof(CC_SHA1_CTX));
+ CC_SHA1_CTX *ctx = (CC_SHA1_CTX *)digestCtx->data;
+ CC_SHA1_Update(ctx, data->data, (CC_LONG)data->length);
+ return noErr;
+}
+
+static OSStatus HashSHA1Final(SSLBuffer *digestCtx, SSLBuffer *digest)
+{
+ assert(digestCtx->length >= sizeof(CC_SHA1_CTX));
+ CC_SHA1_CTX *ctx = (CC_SHA1_CTX *)digestCtx->data;
+ dgprintf(("###HashSHA1Final ctx %p\n", ctx));
+ assert(digest->length >= CC_SHA1_DIGEST_LENGTH);
+ //if (digest->length < CC_SHA1_DIGEST_LENGTH)
+ // return errSSLCrypto;
+ CC_SHA1_Final(digest->data, ctx);
+ digest->length = CC_SHA1_DIGEST_LENGTH;
+ return noErr;
+}
+
+static OSStatus HashSHA1Close(SSLBuffer *digestCtx, SSLContext *sslCtx)
+{
+ assert(digestCtx->length >= sizeof(CC_SHA1_CTX));
+ return noErr;
+}
+
+static OSStatus HashSHA1Clone(const SSLBuffer *src, SSLBuffer *dst)
+{
+ CC_SHA1_CTX *srcCtx;
+ CC_SHA1_CTX *dstCtx;
+
+ assert(src->length >= sizeof(CC_SHA1_CTX));
+ assert(dst->length >= sizeof(CC_SHA1_CTX));
+
+ srcCtx = (CC_SHA1_CTX *)src->data;
+ dstCtx = (CC_SHA1_CTX *)dst->data;
+ dgprintf(("###HashSHA1Clone srcCtx %p dstCtx %p\n", srcCtx, dstCtx));
+
+ memcpy(dstCtx, srcCtx, sizeof(CC_SHA1_CTX));
+ return noErr;
+}
+
+/*** SHA256 ***/
+static OSStatus HashSHA256Init(SSLBuffer *digestCtx, SSLContext *sslCtx)
+{
+ assert(digestCtx->length >= sizeof(CC_SHA256_CTX));
+ CC_SHA256_CTX *ctx = (CC_SHA256_CTX *)digestCtx->data;
+ CC_SHA256_Init(ctx);
+ dgprintf(("###HashSHA256Init ctx %p\n", ctx));
+ return noErr;
+}
+
+static OSStatus HashSHA256Update(SSLBuffer *digestCtx, const SSLBuffer *data)
+{
+ /* 64 bits cast: safe, SSL records are always smaller than 2^32 bytes */
+ assert(digestCtx->length >= sizeof(CC_SHA256_CTX));
+ CC_SHA256_CTX *ctx = (CC_SHA256_CTX *)digestCtx->data;
+ CC_SHA256_Update(ctx, data->data, (CC_LONG)data->length);
+ return noErr;
+}
+
+static OSStatus HashSHA256Final(SSLBuffer *digestCtx, SSLBuffer *digest)
+{
+ assert(digestCtx->length >= sizeof(CC_SHA256_CTX));
+ CC_SHA256_CTX *ctx = (CC_SHA256_CTX *)digestCtx->data;
+ dgprintf(("###HashSHA256Final ctx %p\n", ctx));
+ assert(digest->length >= CC_SHA256_DIGEST_LENGTH);
+ //if (digest->length < CC_SHA256_DIGEST_LENGTH)
+ // return errSSLCrypto;
+ CC_SHA256_Final(digest->data, ctx);
+ digest->length = CC_SHA256_DIGEST_LENGTH;
+ return noErr;
+}
+
+static OSStatus HashSHA256Close(SSLBuffer *digestCtx, SSLContext *sslCtx)
+{
+ assert(digestCtx->length >= sizeof(CC_SHA256_CTX));
+ return noErr;
+}
+
+static OSStatus HashSHA256Clone(const SSLBuffer *src, SSLBuffer *dst)
+{
+ CC_SHA256_CTX *srcCtx;
+ CC_SHA256_CTX *dstCtx;
+
+ assert(src->length >= sizeof(CC_SHA256_CTX));
+ assert(dst->length >= sizeof(CC_SHA256_CTX));
+
+ srcCtx = (CC_SHA256_CTX *)src->data;
+ dstCtx = (CC_SHA256_CTX *)dst->data;
+ dgprintf(("###HashSHA256Clone srcCtx %p dstCtx %p\n", srcCtx, dstCtx));
+
+ memcpy(dstCtx, srcCtx, sizeof(CC_SHA256_CTX));
+ return noErr;
+}
+
+/*** SHA384 ***/
+static OSStatus HashSHA384Init(SSLBuffer *digestCtx, SSLContext *sslCtx)
+{
+ assert(digestCtx->length >= sizeof(CC_SHA512_CTX));
+ CC_SHA512_CTX *ctx = (CC_SHA512_CTX *)digestCtx->data;
+ CC_SHA384_Init(ctx);
+ dgprintf(("###HashSHA384Init ctx %p\n", ctx));
+ return noErr;
+}
+
+static OSStatus HashSHA384Update(SSLBuffer *digestCtx, const SSLBuffer *data)
+{
+ /* 64 bits cast: safe, SSL records are always smaller than 2^32 bytes */
+ assert(digestCtx->length >= sizeof(CC_SHA512_CTX));
+ CC_SHA512_CTX *ctx = (CC_SHA512_CTX *)digestCtx->data;
+ CC_SHA384_Update(ctx, data->data, (CC_LONG)data->length);
+ return noErr;
+}
+
+static OSStatus HashSHA384Final(SSLBuffer *digestCtx, SSLBuffer *digest)
+{
+ assert(digestCtx->length >= sizeof(CC_SHA512_CTX));
+ CC_SHA512_CTX *ctx = (CC_SHA512_CTX *)digestCtx->data;
+ dgprintf(("###HashSHA384Final ctx %p\n", ctx));
+ assert(digest->length >= CC_SHA384_DIGEST_LENGTH);
+ //if (digest->length < CC_SHA384_DIGEST_LENGTH)
+ // return errSSLCrypto;
+ CC_SHA384_Final(digest->data, ctx);
+ digest->length = CC_SHA384_DIGEST_LENGTH;
+ return noErr;
+}
+
+static OSStatus HashSHA384Close(SSLBuffer *digestCtx, SSLContext *sslCtx)
+{
+ assert(digestCtx->length >= sizeof(CC_SHA512_CTX));
+ return noErr;
+}
+
+static OSStatus HashSHA384Clone(const SSLBuffer *src, SSLBuffer *dst)
+{
+ CC_SHA512_CTX *srcCtx;
+ CC_SHA512_CTX *dstCtx;
+
+ assert(src->length >= sizeof(CC_SHA512_CTX));
+ assert(dst->length >= sizeof(CC_SHA512_CTX));
+
+ srcCtx = (CC_SHA512_CTX *)src->data;
+ dstCtx = (CC_SHA512_CTX *)dst->data;
+ dgprintf(("###HashSHA384Clone srcCtx %p dstCtx %p\n", srcCtx, dstCtx));
+
+ memcpy(dstCtx, srcCtx, sizeof(CC_SHA512_CTX));
+ return noErr;
+}
+
+/*
+ * These are the handles by which the bulk of digesting work
+ * is done.
+ */
+const HashReference SSLHashNull =
+ {
+ 0,
+ 0,
+ 0,
+ HashNullInit,
+ HashNullUpdate,
+ HashNullFinal,
+ HashNullClose,
+ HashNullClone
+ };
+
+const HashReference SSLHashMD5 =
+ {
+ sizeof(CC_MD5_CTX),
+ CC_MD5_DIGEST_LENGTH,
+ 48,
+ HashMD5Init,
+ HashMD5Update,
+ HashMD5Final,
+ HashMD5Close,
+ HashMD5Clone
+ };
+
+const HashReference SSLHashSHA1 =
+ {
+ sizeof(CC_SHA1_CTX),
+ CC_SHA1_DIGEST_LENGTH,
+ 40,
+ HashSHA1Init,
+ HashSHA1Update,
+ HashSHA1Final,
+ HashSHA1Close,
+ HashSHA1Clone
+ };
+
+const HashReference SSLHashSHA256 =
+ {
+ sizeof(CC_SHA256_CTX),
+ CC_SHA256_DIGEST_LENGTH,
+ CC_SHA256_BLOCK_BYTES,
+ HashSHA256Init,
+ HashSHA256Update,
+ HashSHA256Final,
+ HashSHA256Close,
+ HashSHA256Clone
+ };
+
+const HashReference SSLHashSHA384 =
+ {
+ sizeof(CC_SHA512_CTX),
+ CC_SHA384_DIGEST_LENGTH,
+ CC_SHA384_BLOCK_BYTES,
+ HashSHA384Init,
+ HashSHA384Update,
+ HashSHA384Final,
+ HashSHA384Close,
+ HashSHA384Clone
+ };
projects / apple / security.git / blobdiff