--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nss/lib/cryptohi/cryptohi.h	Mon Jul 28 10:47:06 2014 +0200
@@ -0,0 +1,368 @@
+/*
+ * cryptohi.h - public prototypes for the crypto library
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef _CRYPTOHI_H_
+#define _CRYPTOHI_H_
+
+#include "blapit.h"
+
+#include "seccomon.h"
+#include "secoidt.h"
+#include "secdert.h"
+#include "cryptoht.h"
+#include "keyt.h"
+#include "certt.h"
+
+
+SEC_BEGIN_PROTOS
+
+
+/****************************************/
+/*
+** DER encode/decode (EC)DSA signatures
+*/
+
+/* ANSI X9.57 defines DSA signatures as DER encoded data.  Our DSA1 code (and
+ * most of the rest of the world) just generates 40 bytes of raw data.  These
+ * functions convert between formats.
+ */
+extern SECStatus DSAU_EncodeDerSig(SECItem *dest, SECItem *src);
+extern SECItem *DSAU_DecodeDerSig(const SECItem *item);
+
+/*
+ * Unlike DSA1, raw DSA2 and ECDSA signatures do not have a fixed length.
+ * Rather they contain two integers r and s whose length depends
+ * on the size of q or the EC key used for signing.
+ *
+ * We can reuse the DSAU_EncodeDerSig interface to DER encode
+ * raw ECDSA signature keeping in mind that the length of r 
+ * is the same as that of s and exactly half of src->len.
+ *
+ * For decoding, we need to pass the length of the desired
+ * raw signature (twice the key size) explicitly.
+ */
+extern SECStatus DSAU_EncodeDerSigWithLen(SECItem *dest, SECItem *src, 
+					  unsigned int len);
+extern SECItem *DSAU_DecodeDerSigToLen(const SECItem *item, unsigned int len);
+
+/****************************************/
+/*
+** Signature creation operations
+*/
+
+/*
+** Create a new signature context used for signing a data stream.
+**      "alg" the signature algorithm to use (e.g. SEC_OID_PKCS1_MD5_WITH_RSA_ENCRYPTION)
+**	"privKey" the private key to use
+*/
+extern SGNContext *SGN_NewContext(SECOidTag alg, SECKEYPrivateKey *privKey);
+
+/*
+** Destroy a signature-context object
+**	"cx" the object
+**	"freeit" if PR_TRUE then free the object as well as its sub-objects
+*/
+extern void SGN_DestroyContext(SGNContext *cx, PRBool freeit);
+
+/*
+** Reset the signing context "cx" to its initial state, preparing it for
+** another stream of data.
+*/
+extern SECStatus SGN_Begin(SGNContext *cx);
+
+/*
+** Update the signing context with more data to sign.
+**	"cx" the context
+**	"input" the input data to sign
+**	"inputLen" the length of the input data
+*/
+extern SECStatus SGN_Update(SGNContext *cx, const unsigned char *input,
+			   unsigned int inputLen);
+
+/*
+** Finish the signature process. Use either k0 or k1 to sign the data
+** stream that was input using SGN_Update. The resulting signature is
+** formatted using PKCS#1 and then encrypted using RSA private or public
+** encryption.
+**	"cx" the context
+**	"result" the final signature data (memory is allocated)
+*/
+extern SECStatus SGN_End(SGNContext *cx, SECItem *result);
+
+/*
+** Sign a single block of data using private key encryption and given
+** signature/hash algorithm.
+**	"result" the final signature data (memory is allocated)
+**	"buf" the input data to sign
+**	"len" the amount of data to sign
+**	"pk" the private key to encrypt with
+**	"algid" the signature/hash algorithm to sign with 
+**		(must be compatible with the key type).
+*/
+extern SECStatus SEC_SignData(SECItem *result,
+			     const unsigned char *buf, int len,
+			     SECKEYPrivateKey *pk, SECOidTag algid);
+
+/*
+** Sign a pre-digested block of data using private key encryption, encoding
+**  The given signature/hash algorithm.
+**	"result" the final signature data (memory is allocated)
+**	"digest" the digest to sign
+**	"privKey" the private key to encrypt with
+**	"algtag" The algorithm tag to encode (need for RSA only)
+*/
+extern SECStatus SGN_Digest(SECKEYPrivateKey *privKey,
+                SECOidTag algtag, SECItem *result, SECItem *digest);
+
+/*
+** DER sign a single block of data using private key encryption and the
+** MD5 hashing algorithm. This routine first computes a digital signature
+** using SEC_SignData, then wraps it with an CERTSignedData and then der
+** encodes the result.
+**	"arena" is the memory arena to use to allocate data from
+** 	"result" the final der encoded data (memory is allocated)
+** 	"buf" the input data to sign
+** 	"len" the amount of data to sign
+** 	"pk" the private key to encrypt with
+*/
+extern SECStatus SEC_DerSignData(PLArenaPool *arena, SECItem *result,
+				const unsigned char *buf, int len,
+				SECKEYPrivateKey *pk, SECOidTag algid);
+
+/*
+** Destroy a signed-data object.
+**	"sd" the object
+**	"freeit" if PR_TRUE then free the object as well as its sub-objects
+*/
+extern void SEC_DestroySignedData(CERTSignedData *sd, PRBool freeit);
+
+/*
+** Get the signature algorithm tag number for the given key type and hash
+** algorithm tag. Returns SEC_OID_UNKNOWN if key type and hash algorithm
+** do not match or are not supported.
+*/
+extern SECOidTag SEC_GetSignatureAlgorithmOidTag(KeyType keyType,
+                                                 SECOidTag hashAlgTag);
+
+/****************************************/
+/*
+** Signature verification operations
+*/
+
+/*
+** Create a signature verification context. This version is deprecated,
+**  This function is deprecated. Use VFY_CreateContextDirect or 
+**  VFY_CreateContextWithAlgorithmID instead.
+**	"key" the public key to verify with
+**	"sig" the encrypted signature data if sig is NULL then
+**	   VFY_EndWithSignature must be called with the correct signature at
+**	   the end of the processing.
+**	"sigAlg" specifies the signing algorithm to use (including the 
+**         hash algorthim).  This must match the key type.
+**	"wincx" void pointer to the window context
+*/
+extern VFYContext *VFY_CreateContext(SECKEYPublicKey *key, SECItem *sig,
+				     SECOidTag sigAlg, void *wincx);
+/*
+** Create a signature verification context.
+**	"key" the public key to verify with
+**	"sig" the encrypted signature data if sig is NULL then
+**	   VFY_EndWithSignature must be called with the correct signature at
+**	   the end of the processing.
+**	"pubkAlg" specifies the cryptographic signing algorithm to use (the
+**         raw algorithm without any hash specified.  This must match the key 
+**         type.
+**	"hashAlg" specifies the hashing algorithm used. If the key is an 
+**	   RSA key, and sig is not NULL, then hashAlg can be SEC_OID_UNKNOWN.
+**	   the hash is selected from data in the sig.
+**	"hash" optional pointer to return the actual hash algorithm used.
+**	   in practice this should always match the passed in hashAlg (the
+**	   exception is the case where hashAlg is SEC_OID_UNKNOWN above).
+**         If this value is NULL no, hash oid is returned.
+**	"wincx" void pointer to the window context
+*/
+extern VFYContext *VFY_CreateContextDirect(const SECKEYPublicKey *key,
+					   const SECItem *sig,
+	     				   SECOidTag pubkAlg, 
+					   SECOidTag hashAlg, 
+					   SECOidTag *hash, void *wincx);
+/*
+** Create a signature verification context from a algorithm ID.
+**	"key" the public key to verify with
+**	"sig" the encrypted signature data if sig is NULL then
+**	   VFY_EndWithSignature must be called with the correct signature at
+**	   the end of the processing.
+**	"algid" specifies the signing algorithm and parameters to use.
+**         This must match the key type.
+**      "hash" optional pointer to return the oid of the actual hash used in 
+**         the signature. If this value is NULL no, hash oid is returned.
+**	"wincx" void pointer to the window context
+*/
+extern VFYContext *VFY_CreateContextWithAlgorithmID(const SECKEYPublicKey *key, 
+				     const SECItem *sig,
+				     const SECAlgorithmID *algid, 
+				     SECOidTag *hash,
+				     void *wincx);
+
+/*
+** Destroy a verification-context object.
+**	"cx" the context to destroy
+**	"freeit" if PR_TRUE then free the object as well as its sub-objects
+*/
+extern void VFY_DestroyContext(VFYContext *cx, PRBool freeit);
+
+extern SECStatus VFY_Begin(VFYContext *cx);
+
+/*
+** Update a verification context with more input data. The input data
+** is fed to a secure hash function (depending on what was in the
+** encrypted signature data).
+**	"cx" the context
+**	"input" the input data
+**	"inputLen" the amount of input data
+*/
+extern SECStatus VFY_Update(VFYContext *cx, const unsigned char *input,
+			    unsigned int inputLen);
+
+/*
+** Finish the verification process. The return value is a status which
+** indicates success or failure. On success, the SECSuccess value is
+** returned. Otherwise, SECFailure is returned and the error code found
+** using PORT_GetError() indicates what failure occurred.
+** 	"cx" the context
+*/
+extern SECStatus VFY_End(VFYContext *cx);
+
+/*
+** Finish the verification process. The return value is a status which
+** indicates success or failure. On success, the SECSuccess value is
+** returned. Otherwise, SECFailure is returned and the error code found
+** using PORT_GetError() indicates what failure occurred. If signature is
+** supplied the verification uses this signature to verify, otherwise the
+** signature passed in VFY_CreateContext() is used. 
+** VFY_EndWithSignature(cx,NULL); is identical to VFY_End(cx);.
+** 	"cx" the context
+** 	"sig" the encrypted signature data
+*/
+extern SECStatus VFY_EndWithSignature(VFYContext *cx, SECItem *sig);
+
+
+/*
+** Verify the signature on a block of data for which we already have
+** the digest. The signature data is an RSA private key encrypted
+** block of data formatted according to PKCS#1.
+**  This function is deprecated. Use VFY_VerifyDigestDirect or 
+**  VFY_VerifyDigestWithAlgorithmID instead.
+** 	"dig" the digest
+** 	"key" the public key to check the signature with
+** 	"sig" the encrypted signature data
+**	"sigAlg" specifies the signing algorithm to use.  This must match
+**	    the key type.
+**	"wincx" void pointer to the window context
+**/
+extern SECStatus VFY_VerifyDigest(SECItem *dig, SECKEYPublicKey *key,
+				  SECItem *sig, SECOidTag sigAlg, void *wincx);
+/*
+** Verify the signature on a block of data for which we already have
+** the digest. The signature data is an RSA private key encrypted
+** block of data formatted according to PKCS#1.
+** 	"dig" the digest
+** 	"key" the public key to check the signature with
+** 	"sig" the encrypted signature data
+**	"pubkAlg" specifies the cryptographic signing algorithm to use (the
+**         raw algorithm without any hash specified.  This must match the key 
+**         type.
+**	"hashAlg" specifies the hashing algorithm used.
+**	"wincx" void pointer to the window context
+**/
+extern SECStatus VFY_VerifyDigestDirect(const SECItem *dig, 
+					const SECKEYPublicKey *key,
+					const SECItem *sig, SECOidTag pubkAlg, 
+					SECOidTag hashAlg, void *wincx);
+/*
+** Verify the signature on a block of data for which we already have
+** the digest. The signature data is an RSA private key encrypted
+** block of data formatted according to PKCS#1.
+**	"key" the public key to verify with
+**	"sig" the encrypted signature data if sig is NULL then
+**	   VFY_EndWithSignature must be called with the correct signature at
+**	   the end of the processing.
+**	"algid" specifies the signing algorithm and parameters to use.
+**         This must match the key type.
+**      "hash" oid of the actual hash used to create digest. If this  value is
+**         not set to SEC_OID_UNKNOWN, it must match the hash of the signature.
+**	"wincx" void pointer to the window context
+*/
+extern SECStatus VFY_VerifyDigestWithAlgorithmID(const SECItem *dig, 
+				const SECKEYPublicKey *key, const SECItem *sig,
+				const SECAlgorithmID *algid, SECOidTag hash,
+				void *wincx);
+
+/*
+** Verify the signature on a block of data. The signature data is an RSA
+** private key encrypted block of data formatted according to PKCS#1.
+**   This function is deprecated. Use VFY_VerifyDataDirect or 
+**   VFY_VerifyDataWithAlgorithmID instead.
+** 	"buf" the input data
+** 	"len" the length of the input data
+** 	"key" the public key to check the signature with
+** 	"sig" the encrypted signature data
+**	"sigAlg" specifies the signing algorithm to use.  This must match
+**	    the key type.
+**	"wincx" void pointer to the window context
+*/
+extern SECStatus VFY_VerifyData(const unsigned char *buf, int len,
+				const SECKEYPublicKey *key, const SECItem *sig,
+				SECOidTag sigAlg, void *wincx);
+/*
+** Verify the signature on a block of data. The signature data is an RSA
+** private key encrypted block of data formatted according to PKCS#1.
+** 	"buf" the input data
+** 	"len" the length of the input data
+** 	"key" the public key to check the signature with
+** 	"sig" the encrypted signature data
+**	"pubkAlg" specifies the cryptographic signing algorithm to use (the
+**         raw algorithm without any hash specified.  This must match the key 
+**         type.
+**	"hashAlg" specifies the hashing algorithm used. If the key is an 
+**	   RSA key, and sig is not NULL, then hashAlg can be SEC_OID_UNKNOWN.
+**	   the hash is selected from data in the sig.
+**	"hash" optional pointer to return the actual hash algorithm used.
+**	   in practice this should always match the passed in hashAlg (the
+**	   exception is the case where hashAlg is SEC_OID_UNKNOWN above).
+**         If this value is NULL no, hash oid is returned.
+**	"wincx" void pointer to the window context
+*/
+extern SECStatus VFY_VerifyDataDirect(const unsigned char *buf, int len,
+				      const SECKEYPublicKey *key, 
+				      const SECItem *sig,
+				      SECOidTag pubkAlg, SECOidTag hashAlg, 
+				      SECOidTag *hash, void *wincx);
+
+/*
+** Verify the signature on a block of data. The signature data is an RSA
+** private key encrypted block of data formatted according to PKCS#1.
+** 	"buf" the input data
+** 	"len" the length of the input data
+** 	"key" the public key to check the signature with
+** 	"sig" the encrypted signature data
+**	"algid" specifies the signing algorithm and parameters to use.
+**         This must match the key type.
+**      "hash" optional pointer to return the oid of the actual hash used in 
+**         the signature. If this value is NULL no, hash oid is returned.
+**	"wincx" void pointer to the window context
+*/
+extern SECStatus VFY_VerifyDataWithAlgorithmID(const unsigned char *buf, 
+				int len, const SECKEYPublicKey *key,
+				const SECItem *sig,
+				const SECAlgorithmID *algid, SECOidTag *hash,
+				void *wincx);
+
+
+SEC_END_PROTOS
+
+#endif /* _CRYPTOHI_H_ */