1532616bbd62bea0fe4873f2e7a57de7be9ba3976tye/** @file 2532616bbd62bea0fe4873f2e7a57de7be9ba3976tye RSA Asymmetric Cipher Wrapper Implementation over OpenSSL. 3532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 4532616bbd62bea0fe4873f2e7a57de7be9ba3976tye This file implements following APIs which provide more capabilities for RSA: 5532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 1) RsaGetKey 6532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 2) RsaGenerateKey 7532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 3) RsaCheckKey 8532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 4) RsaPkcs1Sign 9532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 101cae0c83bbd88822076542e2715077ca2a8bcadbDavid WoodhouseCopyright (c) 2009 - 2015, Intel Corporation. All rights reserved.<BR> 11532616bbd62bea0fe4873f2e7a57de7be9ba3976tyeThis program and the accompanying materials 12532616bbd62bea0fe4873f2e7a57de7be9ba3976tyeare licensed and made available under the terms and conditions of the BSD License 13532616bbd62bea0fe4873f2e7a57de7be9ba3976tyewhich accompanies this distribution. The full text of the license may be found at 14532616bbd62bea0fe4873f2e7a57de7be9ba3976tyehttp://opensource.org/licenses/bsd-license.php 15532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 16532616bbd62bea0fe4873f2e7a57de7be9ba3976tyeTHE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 17532616bbd62bea0fe4873f2e7a57de7be9ba3976tyeWITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 18532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 19532616bbd62bea0fe4873f2e7a57de7be9ba3976tye**/ 20532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 21532616bbd62bea0fe4873f2e7a57de7be9ba3976tye#include "InternalCryptLib.h" 22532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 231cae0c83bbd88822076542e2715077ca2a8bcadbDavid Woodhouse#include <openssl/bn.h> 24532616bbd62bea0fe4873f2e7a57de7be9ba3976tye#include <openssl/rsa.h> 25532616bbd62bea0fe4873f2e7a57de7be9ba3976tye#include <openssl/err.h> 2686b5c3ee549bbdeefa72115c2b7ca7f6f625ebedsfu#include <openssl/objects.h> 27532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 28532616bbd62bea0fe4873f2e7a57de7be9ba3976tye/** 29532616bbd62bea0fe4873f2e7a57de7be9ba3976tye Gets the tag-designated RSA key component from the established RSA context. 30532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 31532616bbd62bea0fe4873f2e7a57de7be9ba3976tye This function retrieves the tag-designated RSA key component from the 32532616bbd62bea0fe4873f2e7a57de7be9ba3976tye established RSA context as a non-negative integer (octet string format 33532616bbd62bea0fe4873f2e7a57de7be9ba3976tye represented in RSA PKCS#1). 34532616bbd62bea0fe4873f2e7a57de7be9ba3976tye If specified key component has not been set or has been cleared, then returned 35532616bbd62bea0fe4873f2e7a57de7be9ba3976tye BnSize is set to 0. 36532616bbd62bea0fe4873f2e7a57de7be9ba3976tye If the BigNumber buffer is too small to hold the contents of the key, FALSE 37532616bbd62bea0fe4873f2e7a57de7be9ba3976tye is returned and BnSize is set to the required buffer size to obtain the key. 38532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 39532616bbd62bea0fe4873f2e7a57de7be9ba3976tye If RsaContext is NULL, then return FALSE. 40532616bbd62bea0fe4873f2e7a57de7be9ba3976tye If BnSize is NULL, then return FALSE. 41532616bbd62bea0fe4873f2e7a57de7be9ba3976tye If BnSize is large enough but BigNumber is NULL, then return FALSE. 42532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 43532616bbd62bea0fe4873f2e7a57de7be9ba3976tye @param[in, out] RsaContext Pointer to RSA context being set. 44532616bbd62bea0fe4873f2e7a57de7be9ba3976tye @param[in] KeyTag Tag of RSA key component being set. 45532616bbd62bea0fe4873f2e7a57de7be9ba3976tye @param[out] BigNumber Pointer to octet integer buffer. 46532616bbd62bea0fe4873f2e7a57de7be9ba3976tye @param[in, out] BnSize On input, the size of big number buffer in bytes. 47532616bbd62bea0fe4873f2e7a57de7be9ba3976tye On output, the size of data returned in big number buffer in bytes. 48532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 49532616bbd62bea0fe4873f2e7a57de7be9ba3976tye @retval TRUE RSA key component was retrieved successfully. 50532616bbd62bea0fe4873f2e7a57de7be9ba3976tye @retval FALSE Invalid RSA key component tag. 51532616bbd62bea0fe4873f2e7a57de7be9ba3976tye @retval FALSE BnSize is too small. 52532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 53532616bbd62bea0fe4873f2e7a57de7be9ba3976tye**/ 54532616bbd62bea0fe4873f2e7a57de7be9ba3976tyeBOOLEAN 55532616bbd62bea0fe4873f2e7a57de7be9ba3976tyeEFIAPI 56532616bbd62bea0fe4873f2e7a57de7be9ba3976tyeRsaGetKey ( 57532616bbd62bea0fe4873f2e7a57de7be9ba3976tye IN OUT VOID *RsaContext, 58532616bbd62bea0fe4873f2e7a57de7be9ba3976tye IN RSA_KEY_TAG KeyTag, 59532616bbd62bea0fe4873f2e7a57de7be9ba3976tye OUT UINT8 *BigNumber, 60532616bbd62bea0fe4873f2e7a57de7be9ba3976tye IN OUT UINTN *BnSize 61532616bbd62bea0fe4873f2e7a57de7be9ba3976tye ) 62532616bbd62bea0fe4873f2e7a57de7be9ba3976tye{ 63532616bbd62bea0fe4873f2e7a57de7be9ba3976tye RSA *RsaKey; 64532616bbd62bea0fe4873f2e7a57de7be9ba3976tye BIGNUM *BnKey; 65532616bbd62bea0fe4873f2e7a57de7be9ba3976tye UINTN Size; 66532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 67532616bbd62bea0fe4873f2e7a57de7be9ba3976tye // 68532616bbd62bea0fe4873f2e7a57de7be9ba3976tye // Check input parameters. 69532616bbd62bea0fe4873f2e7a57de7be9ba3976tye // 70532616bbd62bea0fe4873f2e7a57de7be9ba3976tye if (RsaContext == NULL || BnSize == NULL) { 71532616bbd62bea0fe4873f2e7a57de7be9ba3976tye return FALSE; 72532616bbd62bea0fe4873f2e7a57de7be9ba3976tye } 73532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 74532616bbd62bea0fe4873f2e7a57de7be9ba3976tye RsaKey = (RSA *) RsaContext; 75532616bbd62bea0fe4873f2e7a57de7be9ba3976tye Size = *BnSize; 76532616bbd62bea0fe4873f2e7a57de7be9ba3976tye *BnSize = 0; 77532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 78532616bbd62bea0fe4873f2e7a57de7be9ba3976tye switch (KeyTag) { 79532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 80532616bbd62bea0fe4873f2e7a57de7be9ba3976tye // 81532616bbd62bea0fe4873f2e7a57de7be9ba3976tye // RSA Public Modulus (N) 82532616bbd62bea0fe4873f2e7a57de7be9ba3976tye // 83532616bbd62bea0fe4873f2e7a57de7be9ba3976tye case RsaKeyN: 84532616bbd62bea0fe4873f2e7a57de7be9ba3976tye if (RsaKey->n == NULL) { 85532616bbd62bea0fe4873f2e7a57de7be9ba3976tye return TRUE; 86532616bbd62bea0fe4873f2e7a57de7be9ba3976tye } 87532616bbd62bea0fe4873f2e7a57de7be9ba3976tye BnKey = RsaKey->n; 88532616bbd62bea0fe4873f2e7a57de7be9ba3976tye break; 89532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 90532616bbd62bea0fe4873f2e7a57de7be9ba3976tye // 91532616bbd62bea0fe4873f2e7a57de7be9ba3976tye // RSA Public Exponent (e) 92532616bbd62bea0fe4873f2e7a57de7be9ba3976tye // 93532616bbd62bea0fe4873f2e7a57de7be9ba3976tye case RsaKeyE: 94532616bbd62bea0fe4873f2e7a57de7be9ba3976tye if (RsaKey->e == NULL) { 95532616bbd62bea0fe4873f2e7a57de7be9ba3976tye return TRUE; 96532616bbd62bea0fe4873f2e7a57de7be9ba3976tye } 97532616bbd62bea0fe4873f2e7a57de7be9ba3976tye BnKey = RsaKey->e; 98532616bbd62bea0fe4873f2e7a57de7be9ba3976tye break; 99532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 100532616bbd62bea0fe4873f2e7a57de7be9ba3976tye // 101532616bbd62bea0fe4873f2e7a57de7be9ba3976tye // RSA Private Exponent (d) 102532616bbd62bea0fe4873f2e7a57de7be9ba3976tye // 103532616bbd62bea0fe4873f2e7a57de7be9ba3976tye case RsaKeyD: 104532616bbd62bea0fe4873f2e7a57de7be9ba3976tye if (RsaKey->d == NULL) { 105532616bbd62bea0fe4873f2e7a57de7be9ba3976tye return TRUE; 106532616bbd62bea0fe4873f2e7a57de7be9ba3976tye } 107532616bbd62bea0fe4873f2e7a57de7be9ba3976tye BnKey = RsaKey->d; 108532616bbd62bea0fe4873f2e7a57de7be9ba3976tye break; 109532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 110532616bbd62bea0fe4873f2e7a57de7be9ba3976tye // 111532616bbd62bea0fe4873f2e7a57de7be9ba3976tye // RSA Secret Prime Factor of Modulus (p) 112532616bbd62bea0fe4873f2e7a57de7be9ba3976tye // 113532616bbd62bea0fe4873f2e7a57de7be9ba3976tye case RsaKeyP: 114532616bbd62bea0fe4873f2e7a57de7be9ba3976tye if (RsaKey->p == NULL) { 115532616bbd62bea0fe4873f2e7a57de7be9ba3976tye return TRUE; 116532616bbd62bea0fe4873f2e7a57de7be9ba3976tye } 117532616bbd62bea0fe4873f2e7a57de7be9ba3976tye BnKey = RsaKey->p; 118532616bbd62bea0fe4873f2e7a57de7be9ba3976tye break; 119532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 120532616bbd62bea0fe4873f2e7a57de7be9ba3976tye // 121532616bbd62bea0fe4873f2e7a57de7be9ba3976tye // RSA Secret Prime Factor of Modules (q) 122532616bbd62bea0fe4873f2e7a57de7be9ba3976tye // 123532616bbd62bea0fe4873f2e7a57de7be9ba3976tye case RsaKeyQ: 124532616bbd62bea0fe4873f2e7a57de7be9ba3976tye if (RsaKey->q == NULL) { 125532616bbd62bea0fe4873f2e7a57de7be9ba3976tye return TRUE; 126532616bbd62bea0fe4873f2e7a57de7be9ba3976tye } 127532616bbd62bea0fe4873f2e7a57de7be9ba3976tye BnKey = RsaKey->q; 128532616bbd62bea0fe4873f2e7a57de7be9ba3976tye break; 129532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 130532616bbd62bea0fe4873f2e7a57de7be9ba3976tye // 131532616bbd62bea0fe4873f2e7a57de7be9ba3976tye // p's CRT Exponent (== d mod (p - 1)) 132532616bbd62bea0fe4873f2e7a57de7be9ba3976tye // 133532616bbd62bea0fe4873f2e7a57de7be9ba3976tye case RsaKeyDp: 134532616bbd62bea0fe4873f2e7a57de7be9ba3976tye if (RsaKey->dmp1 == NULL) { 135532616bbd62bea0fe4873f2e7a57de7be9ba3976tye return TRUE; 136532616bbd62bea0fe4873f2e7a57de7be9ba3976tye } 137532616bbd62bea0fe4873f2e7a57de7be9ba3976tye BnKey = RsaKey->dmp1; 138532616bbd62bea0fe4873f2e7a57de7be9ba3976tye break; 139532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 140532616bbd62bea0fe4873f2e7a57de7be9ba3976tye // 141532616bbd62bea0fe4873f2e7a57de7be9ba3976tye // q's CRT Exponent (== d mod (q - 1)) 142532616bbd62bea0fe4873f2e7a57de7be9ba3976tye // 143532616bbd62bea0fe4873f2e7a57de7be9ba3976tye case RsaKeyDq: 144532616bbd62bea0fe4873f2e7a57de7be9ba3976tye if (RsaKey->dmq1 == NULL) { 145532616bbd62bea0fe4873f2e7a57de7be9ba3976tye return TRUE; 146532616bbd62bea0fe4873f2e7a57de7be9ba3976tye } 147532616bbd62bea0fe4873f2e7a57de7be9ba3976tye BnKey = RsaKey->dmq1; 148532616bbd62bea0fe4873f2e7a57de7be9ba3976tye break; 149532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 150532616bbd62bea0fe4873f2e7a57de7be9ba3976tye // 151532616bbd62bea0fe4873f2e7a57de7be9ba3976tye // The CRT Coefficient (== 1/q mod p) 152532616bbd62bea0fe4873f2e7a57de7be9ba3976tye // 153532616bbd62bea0fe4873f2e7a57de7be9ba3976tye case RsaKeyQInv: 154532616bbd62bea0fe4873f2e7a57de7be9ba3976tye if (RsaKey->iqmp == NULL) { 155532616bbd62bea0fe4873f2e7a57de7be9ba3976tye return TRUE; 156532616bbd62bea0fe4873f2e7a57de7be9ba3976tye } 157532616bbd62bea0fe4873f2e7a57de7be9ba3976tye BnKey = RsaKey->iqmp; 158532616bbd62bea0fe4873f2e7a57de7be9ba3976tye break; 159532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 160532616bbd62bea0fe4873f2e7a57de7be9ba3976tye default: 161532616bbd62bea0fe4873f2e7a57de7be9ba3976tye return FALSE; 162532616bbd62bea0fe4873f2e7a57de7be9ba3976tye } 163532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 164532616bbd62bea0fe4873f2e7a57de7be9ba3976tye *BnSize = Size; 165532616bbd62bea0fe4873f2e7a57de7be9ba3976tye Size = BN_num_bytes (BnKey); 166532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 167532616bbd62bea0fe4873f2e7a57de7be9ba3976tye if (*BnSize < Size) { 168532616bbd62bea0fe4873f2e7a57de7be9ba3976tye *BnSize = Size; 169532616bbd62bea0fe4873f2e7a57de7be9ba3976tye return FALSE; 170532616bbd62bea0fe4873f2e7a57de7be9ba3976tye } 171532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 172532616bbd62bea0fe4873f2e7a57de7be9ba3976tye if (BigNumber == NULL) { 173532616bbd62bea0fe4873f2e7a57de7be9ba3976tye return FALSE; 174532616bbd62bea0fe4873f2e7a57de7be9ba3976tye } 175532616bbd62bea0fe4873f2e7a57de7be9ba3976tye *BnSize = BN_bn2bin (BnKey, BigNumber) ; 176532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 177532616bbd62bea0fe4873f2e7a57de7be9ba3976tye return TRUE; 178532616bbd62bea0fe4873f2e7a57de7be9ba3976tye} 179532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 180532616bbd62bea0fe4873f2e7a57de7be9ba3976tye/** 181532616bbd62bea0fe4873f2e7a57de7be9ba3976tye Generates RSA key components. 182532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 183532616bbd62bea0fe4873f2e7a57de7be9ba3976tye This function generates RSA key components. It takes RSA public exponent E and 184532616bbd62bea0fe4873f2e7a57de7be9ba3976tye length in bits of RSA modulus N as input, and generates all key components. 185532616bbd62bea0fe4873f2e7a57de7be9ba3976tye If PublicExponent is NULL, the default RSA public exponent (0x10001) will be used. 186532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 187532616bbd62bea0fe4873f2e7a57de7be9ba3976tye Before this function can be invoked, pseudorandom number generator must be correctly 188532616bbd62bea0fe4873f2e7a57de7be9ba3976tye initialized by RandomSeed(). 189532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 190532616bbd62bea0fe4873f2e7a57de7be9ba3976tye If RsaContext is NULL, then return FALSE. 191532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 192532616bbd62bea0fe4873f2e7a57de7be9ba3976tye @param[in, out] RsaContext Pointer to RSA context being set. 193532616bbd62bea0fe4873f2e7a57de7be9ba3976tye @param[in] ModulusLength Length of RSA modulus N in bits. 194532616bbd62bea0fe4873f2e7a57de7be9ba3976tye @param[in] PublicExponent Pointer to RSA public exponent. 195532616bbd62bea0fe4873f2e7a57de7be9ba3976tye @param[in] PublicExponentSize Size of RSA public exponent buffer in bytes. 196532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 197532616bbd62bea0fe4873f2e7a57de7be9ba3976tye @retval TRUE RSA key component was generated successfully. 198532616bbd62bea0fe4873f2e7a57de7be9ba3976tye @retval FALSE Invalid RSA key component tag. 199532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 200532616bbd62bea0fe4873f2e7a57de7be9ba3976tye**/ 201532616bbd62bea0fe4873f2e7a57de7be9ba3976tyeBOOLEAN 202532616bbd62bea0fe4873f2e7a57de7be9ba3976tyeEFIAPI 203532616bbd62bea0fe4873f2e7a57de7be9ba3976tyeRsaGenerateKey ( 204532616bbd62bea0fe4873f2e7a57de7be9ba3976tye IN OUT VOID *RsaContext, 205532616bbd62bea0fe4873f2e7a57de7be9ba3976tye IN UINTN ModulusLength, 206532616bbd62bea0fe4873f2e7a57de7be9ba3976tye IN CONST UINT8 *PublicExponent, 207532616bbd62bea0fe4873f2e7a57de7be9ba3976tye IN UINTN PublicExponentSize 208532616bbd62bea0fe4873f2e7a57de7be9ba3976tye ) 209532616bbd62bea0fe4873f2e7a57de7be9ba3976tye{ 210532616bbd62bea0fe4873f2e7a57de7be9ba3976tye BIGNUM *KeyE; 211532616bbd62bea0fe4873f2e7a57de7be9ba3976tye BOOLEAN RetVal; 212532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 213532616bbd62bea0fe4873f2e7a57de7be9ba3976tye // 214532616bbd62bea0fe4873f2e7a57de7be9ba3976tye // Check input parameters. 215532616bbd62bea0fe4873f2e7a57de7be9ba3976tye // 216dda39f3a5850458391aaab330971d46bc9c2b690tye if (RsaContext == NULL || ModulusLength > INT_MAX || PublicExponentSize > INT_MAX) { 217532616bbd62bea0fe4873f2e7a57de7be9ba3976tye return FALSE; 218532616bbd62bea0fe4873f2e7a57de7be9ba3976tye } 219532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 220532616bbd62bea0fe4873f2e7a57de7be9ba3976tye KeyE = BN_new (); 221dda39f3a5850458391aaab330971d46bc9c2b690tye if (KeyE == NULL) { 222dda39f3a5850458391aaab330971d46bc9c2b690tye return FALSE; 223dda39f3a5850458391aaab330971d46bc9c2b690tye } 224dda39f3a5850458391aaab330971d46bc9c2b690tye 225dda39f3a5850458391aaab330971d46bc9c2b690tye RetVal = FALSE; 226dda39f3a5850458391aaab330971d46bc9c2b690tye 227532616bbd62bea0fe4873f2e7a57de7be9ba3976tye if (PublicExponent == NULL) { 228dda39f3a5850458391aaab330971d46bc9c2b690tye if (BN_set_word (KeyE, 0x10001) == 0) { 229dda39f3a5850458391aaab330971d46bc9c2b690tye goto _Exit; 230dda39f3a5850458391aaab330971d46bc9c2b690tye } 231532616bbd62bea0fe4873f2e7a57de7be9ba3976tye } else { 232dda39f3a5850458391aaab330971d46bc9c2b690tye if (BN_bin2bn (PublicExponent, (UINT32) PublicExponentSize, KeyE) == NULL) { 233dda39f3a5850458391aaab330971d46bc9c2b690tye goto _Exit; 234dda39f3a5850458391aaab330971d46bc9c2b690tye } 235532616bbd62bea0fe4873f2e7a57de7be9ba3976tye } 236532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 237532616bbd62bea0fe4873f2e7a57de7be9ba3976tye if (RSA_generate_key_ex ((RSA *) RsaContext, (UINT32) ModulusLength, KeyE, NULL) == 1) { 238532616bbd62bea0fe4873f2e7a57de7be9ba3976tye RetVal = TRUE; 239532616bbd62bea0fe4873f2e7a57de7be9ba3976tye } 240532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 241dda39f3a5850458391aaab330971d46bc9c2b690tye_Exit: 242532616bbd62bea0fe4873f2e7a57de7be9ba3976tye BN_free (KeyE); 243532616bbd62bea0fe4873f2e7a57de7be9ba3976tye return RetVal; 244532616bbd62bea0fe4873f2e7a57de7be9ba3976tye} 245532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 246532616bbd62bea0fe4873f2e7a57de7be9ba3976tye/** 247952bd2291872b5e2d302f8de1349239bfbd0332cQin Long Validates key components of RSA context. 248952bd2291872b5e2d302f8de1349239bfbd0332cQin Long NOTE: This function performs integrity checks on all the RSA key material, so 249952bd2291872b5e2d302f8de1349239bfbd0332cQin Long the RSA key structure must contain all the private key data. 250532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 251532616bbd62bea0fe4873f2e7a57de7be9ba3976tye This function validates key compoents of RSA context in following aspects: 252532616bbd62bea0fe4873f2e7a57de7be9ba3976tye - Whether p is a prime 253532616bbd62bea0fe4873f2e7a57de7be9ba3976tye - Whether q is a prime 254532616bbd62bea0fe4873f2e7a57de7be9ba3976tye - Whether n = p * q 255532616bbd62bea0fe4873f2e7a57de7be9ba3976tye - Whether d*e = 1 mod lcm(p-1,q-1) 256532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 257532616bbd62bea0fe4873f2e7a57de7be9ba3976tye If RsaContext is NULL, then return FALSE. 258532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 259532616bbd62bea0fe4873f2e7a57de7be9ba3976tye @param[in] RsaContext Pointer to RSA context to check. 260532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 261532616bbd62bea0fe4873f2e7a57de7be9ba3976tye @retval TRUE RSA key components are valid. 262532616bbd62bea0fe4873f2e7a57de7be9ba3976tye @retval FALSE RSA key components are not valid. 263532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 264532616bbd62bea0fe4873f2e7a57de7be9ba3976tye**/ 265532616bbd62bea0fe4873f2e7a57de7be9ba3976tyeBOOLEAN 266532616bbd62bea0fe4873f2e7a57de7be9ba3976tyeEFIAPI 267532616bbd62bea0fe4873f2e7a57de7be9ba3976tyeRsaCheckKey ( 268532616bbd62bea0fe4873f2e7a57de7be9ba3976tye IN VOID *RsaContext 269532616bbd62bea0fe4873f2e7a57de7be9ba3976tye ) 270532616bbd62bea0fe4873f2e7a57de7be9ba3976tye{ 271532616bbd62bea0fe4873f2e7a57de7be9ba3976tye UINTN Reason; 272532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 273532616bbd62bea0fe4873f2e7a57de7be9ba3976tye // 274532616bbd62bea0fe4873f2e7a57de7be9ba3976tye // Check input parameters. 275532616bbd62bea0fe4873f2e7a57de7be9ba3976tye // 276532616bbd62bea0fe4873f2e7a57de7be9ba3976tye if (RsaContext == NULL) { 277532616bbd62bea0fe4873f2e7a57de7be9ba3976tye return FALSE; 278532616bbd62bea0fe4873f2e7a57de7be9ba3976tye } 279532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 280532616bbd62bea0fe4873f2e7a57de7be9ba3976tye if (RSA_check_key ((RSA *) RsaContext) != 1) { 281532616bbd62bea0fe4873f2e7a57de7be9ba3976tye Reason = ERR_GET_REASON (ERR_peek_last_error ()); 282532616bbd62bea0fe4873f2e7a57de7be9ba3976tye if (Reason == RSA_R_P_NOT_PRIME || 283532616bbd62bea0fe4873f2e7a57de7be9ba3976tye Reason == RSA_R_Q_NOT_PRIME || 284532616bbd62bea0fe4873f2e7a57de7be9ba3976tye Reason == RSA_R_N_DOES_NOT_EQUAL_P_Q || 285532616bbd62bea0fe4873f2e7a57de7be9ba3976tye Reason == RSA_R_D_E_NOT_CONGRUENT_TO_1) { 286532616bbd62bea0fe4873f2e7a57de7be9ba3976tye return FALSE; 287532616bbd62bea0fe4873f2e7a57de7be9ba3976tye } 288532616bbd62bea0fe4873f2e7a57de7be9ba3976tye } 289532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 290532616bbd62bea0fe4873f2e7a57de7be9ba3976tye return TRUE; 291532616bbd62bea0fe4873f2e7a57de7be9ba3976tye} 292532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 293532616bbd62bea0fe4873f2e7a57de7be9ba3976tye/** 294532616bbd62bea0fe4873f2e7a57de7be9ba3976tye Carries out the RSA-SSA signature generation with EMSA-PKCS1-v1_5 encoding scheme. 295532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 296532616bbd62bea0fe4873f2e7a57de7be9ba3976tye This function carries out the RSA-SSA signature generation with EMSA-PKCS1-v1_5 encoding scheme defined in 297532616bbd62bea0fe4873f2e7a57de7be9ba3976tye RSA PKCS#1. 298532616bbd62bea0fe4873f2e7a57de7be9ba3976tye If the Signature buffer is too small to hold the contents of signature, FALSE 299532616bbd62bea0fe4873f2e7a57de7be9ba3976tye is returned and SigSize is set to the required buffer size to obtain the signature. 300532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 301532616bbd62bea0fe4873f2e7a57de7be9ba3976tye If RsaContext is NULL, then return FALSE. 302532616bbd62bea0fe4873f2e7a57de7be9ba3976tye If MessageHash is NULL, then return FALSE. 303532616bbd62bea0fe4873f2e7a57de7be9ba3976tye If HashSize is not equal to the size of MD5, SHA-1 or SHA-256 digest, then return FALSE. 304532616bbd62bea0fe4873f2e7a57de7be9ba3976tye If SigSize is large enough but Signature is NULL, then return FALSE. 305532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 306532616bbd62bea0fe4873f2e7a57de7be9ba3976tye @param[in] RsaContext Pointer to RSA context for signature generation. 307532616bbd62bea0fe4873f2e7a57de7be9ba3976tye @param[in] MessageHash Pointer to octet message hash to be signed. 308532616bbd62bea0fe4873f2e7a57de7be9ba3976tye @param[in] HashSize Size of the message hash in bytes. 309532616bbd62bea0fe4873f2e7a57de7be9ba3976tye @param[out] Signature Pointer to buffer to receive RSA PKCS1-v1_5 signature. 310532616bbd62bea0fe4873f2e7a57de7be9ba3976tye @param[in, out] SigSize On input, the size of Signature buffer in bytes. 311532616bbd62bea0fe4873f2e7a57de7be9ba3976tye On output, the size of data returned in Signature buffer in bytes. 312532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 313532616bbd62bea0fe4873f2e7a57de7be9ba3976tye @retval TRUE Signature successfully generated in PKCS1-v1_5. 314532616bbd62bea0fe4873f2e7a57de7be9ba3976tye @retval FALSE Signature generation failed. 315532616bbd62bea0fe4873f2e7a57de7be9ba3976tye @retval FALSE SigSize is too small. 316532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 317532616bbd62bea0fe4873f2e7a57de7be9ba3976tye**/ 318532616bbd62bea0fe4873f2e7a57de7be9ba3976tyeBOOLEAN 319532616bbd62bea0fe4873f2e7a57de7be9ba3976tyeEFIAPI 320532616bbd62bea0fe4873f2e7a57de7be9ba3976tyeRsaPkcs1Sign ( 321532616bbd62bea0fe4873f2e7a57de7be9ba3976tye IN VOID *RsaContext, 322532616bbd62bea0fe4873f2e7a57de7be9ba3976tye IN CONST UINT8 *MessageHash, 323532616bbd62bea0fe4873f2e7a57de7be9ba3976tye IN UINTN HashSize, 324532616bbd62bea0fe4873f2e7a57de7be9ba3976tye OUT UINT8 *Signature, 325532616bbd62bea0fe4873f2e7a57de7be9ba3976tye IN OUT UINTN *SigSize 326532616bbd62bea0fe4873f2e7a57de7be9ba3976tye ) 327532616bbd62bea0fe4873f2e7a57de7be9ba3976tye{ 328532616bbd62bea0fe4873f2e7a57de7be9ba3976tye RSA *Rsa; 329532616bbd62bea0fe4873f2e7a57de7be9ba3976tye UINTN Size; 33086b5c3ee549bbdeefa72115c2b7ca7f6f625ebedsfu INT32 DigestType; 331532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 332532616bbd62bea0fe4873f2e7a57de7be9ba3976tye // 333532616bbd62bea0fe4873f2e7a57de7be9ba3976tye // Check input parameters. 334532616bbd62bea0fe4873f2e7a57de7be9ba3976tye // 33586b5c3ee549bbdeefa72115c2b7ca7f6f625ebedsfu if (RsaContext == NULL || MessageHash == NULL) { 336532616bbd62bea0fe4873f2e7a57de7be9ba3976tye return FALSE; 337532616bbd62bea0fe4873f2e7a57de7be9ba3976tye } 338532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 339532616bbd62bea0fe4873f2e7a57de7be9ba3976tye Rsa = (RSA *) RsaContext; 340532616bbd62bea0fe4873f2e7a57de7be9ba3976tye Size = BN_num_bytes (Rsa->n); 341532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 342532616bbd62bea0fe4873f2e7a57de7be9ba3976tye if (*SigSize < Size) { 343532616bbd62bea0fe4873f2e7a57de7be9ba3976tye *SigSize = Size; 344532616bbd62bea0fe4873f2e7a57de7be9ba3976tye return FALSE; 345532616bbd62bea0fe4873f2e7a57de7be9ba3976tye } 34686b5c3ee549bbdeefa72115c2b7ca7f6f625ebedsfu 347532616bbd62bea0fe4873f2e7a57de7be9ba3976tye if (Signature == NULL) { 348532616bbd62bea0fe4873f2e7a57de7be9ba3976tye return FALSE; 349532616bbd62bea0fe4873f2e7a57de7be9ba3976tye } 35086b5c3ee549bbdeefa72115c2b7ca7f6f625ebedsfu 35186b5c3ee549bbdeefa72115c2b7ca7f6f625ebedsfu // 35286b5c3ee549bbdeefa72115c2b7ca7f6f625ebedsfu // Determine the message digest algorithm according to digest size. 35386b5c3ee549bbdeefa72115c2b7ca7f6f625ebedsfu // Only MD5, SHA-1 or SHA-256 algorithm is supported. 35486b5c3ee549bbdeefa72115c2b7ca7f6f625ebedsfu // 35586b5c3ee549bbdeefa72115c2b7ca7f6f625ebedsfu switch (HashSize) { 35686b5c3ee549bbdeefa72115c2b7ca7f6f625ebedsfu case MD5_DIGEST_SIZE: 35786b5c3ee549bbdeefa72115c2b7ca7f6f625ebedsfu DigestType = NID_md5; 35886b5c3ee549bbdeefa72115c2b7ca7f6f625ebedsfu break; 35986b5c3ee549bbdeefa72115c2b7ca7f6f625ebedsfu 36086b5c3ee549bbdeefa72115c2b7ca7f6f625ebedsfu case SHA1_DIGEST_SIZE: 36186b5c3ee549bbdeefa72115c2b7ca7f6f625ebedsfu DigestType = NID_sha1; 36286b5c3ee549bbdeefa72115c2b7ca7f6f625ebedsfu break; 36386b5c3ee549bbdeefa72115c2b7ca7f6f625ebedsfu 36486b5c3ee549bbdeefa72115c2b7ca7f6f625ebedsfu case SHA256_DIGEST_SIZE: 36586b5c3ee549bbdeefa72115c2b7ca7f6f625ebedsfu DigestType = NID_sha256; 36686b5c3ee549bbdeefa72115c2b7ca7f6f625ebedsfu break; 367532616bbd62bea0fe4873f2e7a57de7be9ba3976tye 36886b5c3ee549bbdeefa72115c2b7ca7f6f625ebedsfu default: 369532616bbd62bea0fe4873f2e7a57de7be9ba3976tye return FALSE; 37086b5c3ee549bbdeefa72115c2b7ca7f6f625ebedsfu } 37186b5c3ee549bbdeefa72115c2b7ca7f6f625ebedsfu 37286b5c3ee549bbdeefa72115c2b7ca7f6f625ebedsfu return (BOOLEAN) RSA_sign ( 37386b5c3ee549bbdeefa72115c2b7ca7f6f625ebedsfu DigestType, 37486b5c3ee549bbdeefa72115c2b7ca7f6f625ebedsfu MessageHash, 37586b5c3ee549bbdeefa72115c2b7ca7f6f625ebedsfu (UINT32) HashSize, 37686b5c3ee549bbdeefa72115c2b7ca7f6f625ebedsfu Signature, 37786b5c3ee549bbdeefa72115c2b7ca7f6f625ebedsfu (UINT32 *) SigSize, 37886b5c3ee549bbdeefa72115c2b7ca7f6f625ebedsfu (RSA *) RsaContext 37986b5c3ee549bbdeefa72115c2b7ca7f6f625ebedsfu ); 380532616bbd62bea0fe4873f2e7a57de7be9ba3976tye} 381