X-Git-Url: https://git.saurik.com/apple/security.git/blobdiff_plain/80e2389990082500d76eb566d4946be3e786c3ef..d8f41ccd20de16f8ebe2ccc84d47bf1cb2b26bbb:/Security/libsecurity_cryptkit/lib/feeDES.h

diff --git a/Security/libsecurity_cryptkit/lib/feeDES.h b/Security/libsecurity_cryptkit/lib/feeDES.h
new file mode 100644
index 00000000..07a8da9c
--- /dev/null
+++ b/Security/libsecurity_cryptkit/lib/feeDES.h
@@ -0,0 +1,141 @@
+/* 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.
+ ***************************************************************************
+ *
+ * FeeDES.h - generic, portable DES encryption object
+ *
+ * Revision History
+ * ----------------
+ * 26 Aug 96 at NeXT
+ *	Created.
+ */
+
+#ifndef	_CK_FEEDES_H_
+#define _CK_FEEDES_H_
+
+#if	!defined(__MACH__)
+#include <ckconfig.h>
+#include <feeTypes.h>
+#else
+#include <security_cryptkit/ckconfig.h>
+#include <security_cryptkit/feeTypes.h>
+#endif
+
+#if	CRYPTKIT_SYMMETRIC_ENABLE
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define FEE_DES_MIN_STATE_SIZE	8
+
+/*
+ * Opaque object handle.
+ */
+typedef void *feeDES;
+
+/*
+ * Alloc and init a feeDES object with specified initial state.
+ * State must be at least 8 bytes; only 8 bytes are used, ignoring
+ * MSB of each bytes.
+ */
+feeDES feeDESNewWithState(const unsigned char *state,
+	unsigned stateLen);
+
+void feeDESFree(feeDES des);
+
+/*
+ * Set new initial state.
+ */
+feeReturn feeDESSetState(feeDES des,
+	const unsigned char *state,
+	unsigned stateLen);
+
+/*
+ * Set block or chain (CBC) mode. CBC is default.
+ */
+void feeDESSetBlockMode(feeDES des);
+void feeDESSetChainMode(feeDES des);
+
+/*
+ * Plaintext block size.
+ */
+unsigned feeDESPlainBlockSize(feeDES des);
+
+/*
+ * Ciphertext block size used for decryption.
+ */
+unsigned feeDESCipherBlockSize(feeDES des);
+
+/*
+ * Required size of buffer for ciphertext, upon encrypting one
+ * block of plaintext.
+ */
+unsigned feeDESCipherBufSize(feeDES des);
+
+/*
+
+ * Return the size of ciphertext to hold specified size of plaintext.
+
+ */
+
+unsigned feeDESCipherTextSize(feeDES des, unsigned plainTextSize);
+
+
+/*
+ * Key size in bits.
+ */
+unsigned feeDESKeySize(feeDES des);
+
+/*
+ * Encrypt a block or less of data. Caller malloc's cipherText. Generates
+ * up to (2 * feeDESBlockSize) bytes of cipherText. If plainTextLen is
+ * less than feeDESBlockSize, finalBlock must be true.
+ */
+feeReturn feeDESEncryptBlock(feeDES des,
+	const unsigned char *plainText,
+	unsigned plainTextLen,
+	unsigned char *cipherText,
+	unsigned *cipherTextLen,		// RETURNED
+	int finalBlock);
+
+/*
+ * Decrypt (exactly) a block of data. Caller malloc's plainText. Always
+ * generates feeDESBlockSize bytes of plainText, unless 'finalBlock' is
+ * non-zero (in which case feeDESBlockSize or less bytes of plainText are
+ * generated).
+ */
+feeReturn feeDESDecryptBlock(feeDES des,
+	const unsigned char *cipherText,
+	unsigned cipherTextLen,
+	unsigned char *plainText,
+	unsigned *plainTextLen,			// RETURNED
+	int finalBlock);
+
+/*
+ * Convenience routines to encrypt & decrypt multi-block data.
+ */
+feeReturn feeDESEncrypt(feeDES des,
+	const unsigned char *plainText,
+	unsigned plainTextLen,
+	unsigned char **cipherText,		// malloc'd and RETURNED
+	unsigned *cipherTextLen);		// RETURNED
+
+feeReturn feeDESDecrypt(feeDES des,
+	const unsigned char *cipherText,
+	unsigned cipherTextLen,
+	unsigned char **plainText,		// malloc'd and RETURNED
+	unsigned *plainTextLen);		// RETURNED
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif	/* CRYPTKIT_SYMMETRIC_ENABLE */
+#endif	/*_CK_FEEDES_H_*/