xnu-2050.7.9.tar.gz

[apple/xnu.git] / libkern / crypto / corecrypto_sha2.c

diff --git a/libkern/crypto/corecrypto_sha2.c b/libkern/crypto/corecrypto_sha2.c
new file mode 100644 (file)
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+++ b/libkern/crypto/corecrypto_sha2.c
@@ -0,0 +1,117 @@
+/*
+ * Copyright (c) 2012 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_OSREFERENCE_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. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ * 
+ * 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_OSREFERENCE_LICENSE_HEADER_END@
+ */
+
+#include <libkern/crypto/crypto_internal.h>
+#include <libkern/crypto/sha2.h>
+#include <kern/debug.h>
+#include <corecrypto/ccdigest.h>
+
+void SHA256_Init(SHA256_CTX *ctx)
+{
+       const struct ccdigest_info *di;
+       di=g_crypto_funcs->ccsha256_di;
+
+        /* Make sure the context size for the digest info fits in the one we have */
+        if(ccdigest_di_size(di)>sizeof(SHA256_CTX))
+                panic("%s: inconsistent size for SHA256 context", __FUNCTION__);
+ 
+       g_crypto_funcs->ccdigest_init_fn(di, ctx->ctx);
+}
+
+void SHA256_Update(SHA256_CTX *ctx, const void *data, size_t len)
+{
+       const struct ccdigest_info *di;
+       di=g_crypto_funcs->ccsha256_di;
+
+       g_crypto_funcs->ccdigest_update_fn(di, ctx->ctx, len, data);
+}
+
+void SHA256_Final(void *digest, SHA256_CTX *ctx)
+{
+       const struct ccdigest_info *di;
+       di=g_crypto_funcs->ccsha256_di;
+
+       ccdigest_final(di, ctx->ctx, digest);
+}
+
+void SHA384_Init(SHA384_CTX *ctx)
+{
+       const struct ccdigest_info *di;
+       di=g_crypto_funcs->ccsha384_di;
+
+        /* Make sure the context size for the digest info fits in the one we have */
+        if(ccdigest_di_size(di)>sizeof(SHA384_CTX))
+                panic("%s: inconsistent size for SHA384 context", __FUNCTION__);
+ 
+       g_crypto_funcs->ccdigest_init_fn(di, ctx->ctx);
+}
+
+void SHA384_Update(SHA384_CTX *ctx, const void *data, size_t len)
+{
+       const struct ccdigest_info *di;
+       di=g_crypto_funcs->ccsha384_di;
+
+       g_crypto_funcs->ccdigest_update_fn(di, ctx->ctx, len, data);
+}
+
+
+void SHA384_Final(void *digest, SHA384_CTX *ctx)
+{
+       const struct ccdigest_info *di;
+       di=g_crypto_funcs->ccsha512_di;
+
+       ccdigest_final(di, ctx->ctx, digest);
+}
+
+void SHA512_Init(SHA512_CTX *ctx)
+{
+       const struct ccdigest_info *di;
+       di=g_crypto_funcs->ccsha512_di;
+
+        /* Make sure the context size for the digest info fits in the one we have */
+        if(ccdigest_di_size(di)>sizeof(SHA512_CTX))
+                panic("%s: inconsistent size for SHA512 context", __FUNCTION__);
+ 
+       g_crypto_funcs->ccdigest_init_fn(di, ctx->ctx);
+}
+
+void SHA512_Update(SHA512_CTX *ctx, const void *data, size_t len)
+{
+       const struct ccdigest_info *di;
+       di=g_crypto_funcs->ccsha512_di;
+
+       g_crypto_funcs->ccdigest_update_fn(di, ctx->ctx, len, data);
+}
+
+void SHA512_Final(void *digest, SHA512_CTX *ctx)
+{
+       const struct ccdigest_info *di;
+       di=g_crypto_funcs->ccsha512_di;
+
+       ccdigest_final(di, ctx->ctx, digest);
+}