1/* 2 * Copyright (c) 2000-2001,2011,2014 Apple Inc. All Rights Reserved. 3 * 4 * The contents of this file constitute Original Code as defined in and are 5 * subject to the Apple Public Source License Version 1.2 (the 'License'). 6 * You may not use this file except in compliance with the License. Please obtain 7 * a copy of the License at http://www.apple.com/publicsource and read it before 8 * using this file. 9 * 10 * This Original Code and all software distributed under the License are 11 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS 12 * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT 13 * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR 14 * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the 15 * specific language governing rights and limitations under the License. 16 */ 17 18 19/* 20 * RSA_DSA_utils.h 21 */ 22#ifndef _RSA_DSA_UTILS_H_ 23#define _RSA_DSA_UTILS_H_ 24 25#include <openssl/rsa.h> 26#include <openssl/dsa.h> 27#include <AppleCSPSession.h> 28#include <security_cdsa_utilities/context.h> 29 30#ifdef __cplusplus 31extern "C" { 32#endif 33 34uint32 rsaMaxKeySize(); 35uint32 rsaMaxPubExponentSize(); 36 37/* 38 * Given a Context: 39 * -- obtain CSSM key (there must only be one) 40 * -- validate keyClass 41 * -- validate keyUsage 42 * -- convert to RSA *, allocating the RSA key if necessary 43 */ 44RSA *contextToRsaKey( 45 const Context &context, 46 AppleCSPSession &session, 47 CSSM_KEYCLASS keyClass, // CSSM_KEYCLASS_{PUBLIC,PRIVATE}_KEY 48 CSSM_KEYUSE usage, // CSSM_KEYUSE_ENCRYPT, CSSM_KEYUSE_SIGN, etc. 49 bool &mallocdKey, // RETURNED 50 CSSM_DATA &label); // mallocd and RETURNED for OAEP 51 52/* 53 * Convert a CssmKey to an RSA * key. May result in the creation of a new 54 * RSA (when cssmKey is a raw key); allocdKey is true in that case 55 * in which case the caller generally has to free the allocd key). 56 */ 57RSA *cssmKeyToRsa( 58 const CssmKey &cssmKey, 59 AppleCSPSession &session, 60 bool &allocdKey, // RETURNED 61 CSSM_DATA &label); // mallocd and RETURNED for OAEP 62 63/* 64 * Convert a raw CssmKey to a newly alloc'd RSA *. 65 */ 66RSA *rawCssmKeyToRsa( 67 const CssmKey &cssmKey, 68 CSSM_DATA &label); // mallocd and RETURNED for OAEP keys 69 70/* 71 * Given a partially formed DSA public key (with no p, q, or g) and a 72 * CssmKey representing a supposedly fully-formed DSA key, populate 73 * the public key's p, g, and q with values from the fully formed key. 74 */ 75CSSM_RETURN dsaGetParamsFromKey( 76 DSA *partialKey, 77 const CssmKey ¶mKey, 78 AppleCSPSession &session); 79 80/* 81 * Given a Context: 82 * -- obtain CSSM key (there must only be one) 83 * -- validate keyClass 84 * -- validate keyUsage 85 * -- convert to DSA *, allocating the DSA key if necessary 86 */ 87DSA *contextToDsaKey( 88 const Context &context, 89 AppleCSPSession &session, 90 CSSM_KEYCLASS keyClass, // CSSM_KEYCLASS_{PUBLIC,PRIVATE}_KEY 91 CSSM_KEYUSE usage, // CSSM_KEYUSE_ENCRYPT, CSSM_KEYUSE_SIGN, etc. 92 bool &mallocdKey); // RETURNED 93 94/* 95 * Convert a CssmKey to an DSA * key. May result in the creation of a new 96 * DSA (when cssmKey is a raw key); allocdKey is true in that case 97 * in which case the caller generally has to free the allocd key). 98 */ 99DSA *cssmKeyToDsa( 100 const CssmKey &cssmKey, 101 AppleCSPSession &session, 102 bool &allocdKey); // RETURNED 103 104/* 105 * Convert a raw CssmKey to a newly alloc'd DSA *. 106 */ 107DSA *rawCssmKeyToDsa( 108 const CssmKey &cssmKey, 109 AppleCSPSession &session, 110 const CssmKey *paramKey); // optional 111 112/* 113 * Given a DSA private key, calculate its public component if it 114 * doesn't already exist. Used for calculating the key digest of 115 * an incoming raw private key. 116 */ 117void dsaKeyPrivToPub( 118 DSA *dsaKey); 119 120#ifdef __cplusplus 121} 122#endif 123 124#endif /*_RSA_DSA_UTILS_H_ */ 125