Security-57031.1.35.tar.gz

[apple/security.git] / Security / libsecurity_cryptkit / lib / feeECDSA.h

diff --git a/Security/libsecurity_cryptkit/lib/feeECDSA.h b/Security/libsecurity_cryptkit/lib/feeECDSA.h
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+/* 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.
+ ***************************************************************************
+ *
+ * feeECDSA.h - Elliptic Curve Digital Signature Algorithm (per IEEE 1363)
+ *
+ * Revision History
+ * ----------------
+ * 16 Jul 97 at Apple
+ *     Created.
+ */
+
+#ifndef        _CK_FEEECDSA_H_
+#define _CK_FEEECDSA_H_
+
+#if    !defined(__MACH__)
+#include <ckconfig.h>
+#include <feeTypes.h>
+#include <feePublicKey.h>
+#else
+#include <security_cryptkit/ckconfig.h>
+#include <security_cryptkit/feeTypes.h>
+#include <security_cryptkit/feePublicKey.h>
+#endif
+
+/* 
+ * Keep this one defined and visible even if we can't actually do ECDSA - feeSigParse()
+ * uses it to detect "wriong signature type".
+ */
+#define FEE_ECDSA_MAGIC                0xfee00517
+
+#if    CRYPTKIT_ECDSA_ENABLE
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/*
+ * Sign specified block of data (most likely a hash result) using
+ * specified private key. Result, an enc64-encoded signature block,
+ * is returned in *sigData.
+ */
+feeReturn feeECDSASign(feePubKey pubKey,
+       const unsigned char *data,      // data to be signed
+       unsigned dataLen,                               // in bytes
+       feeRandFcn randFcn,                             // optional
+       void *randRef,                                  // optional 
+       unsigned char **sigData,                // malloc'd and RETURNED
+       unsigned *sigDataLen);                  // RETURNED
+
+/*
+ * Verify signature, obtained via feeECDSASign, for specified
+ * data (most likely a hash result) and feePubKey. Returns FR_Success or
+ * FR_InvalidSignature.
+ */
+feeReturn feeECDSAVerify(const unsigned char *sigData,
+       size_t sigDataLen,
+       const unsigned char *data,
+       unsigned dataLen,
+       feePubKey pubKey);
+
+/*
+ * For given key, calculate maximum signature size. 
+ */
+feeReturn feeECDSASigSize(
+       feePubKey pubKey,
+       unsigned *maxSigLen);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* CRYPTKIT_ECDSA_ENABLE */
+
+#endif /*_CK_FEEECDSA_H_*/