f56b11d2cd
OpenSSL-1.1.xx makes most data structures opaque. This patch updates Public Key Cipher Wrapper implementations in BaseCryptLib to use the accessor APIs for opaque object access. The impacted interfaces includes RSA, DH, X509, PKCS7, etc. Cc: Ting Ye <ting.ye@intel.com> Cc: Laszlo Ersek <lersek@redhat.com> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Gary Lin <glin@suse.com> Cc: Ronald Cron <ronald.cron@arm.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Qin Long <qin.long@intel.com> Reviewed-by: Ting Ye <ting.ye@intel.com> Tested-by: Laszlo Ersek <lersek@redhat.com> Tested-by: Gary Lin <glin@suse.com>
326 lines
8.0 KiB
C
326 lines
8.0 KiB
C
/** @file
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RSA Asymmetric Cipher Wrapper Implementation over OpenSSL.
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This file implements following APIs which provide basic capabilities for RSA:
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1) RsaNew
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2) RsaFree
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3) RsaSetKey
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4) RsaPkcs1Verify
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Copyright (c) 2009 - 2017, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include "InternalCryptLib.h"
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#include <openssl/bn.h>
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#include <openssl/rsa.h>
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#include <openssl/objects.h>
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/**
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Allocates and initializes one RSA context for subsequent use.
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@return Pointer to the RSA context that has been initialized.
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If the allocations fails, RsaNew() returns NULL.
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**/
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VOID *
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EFIAPI
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RsaNew (
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VOID
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)
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{
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//
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// Allocates & Initializes RSA Context by OpenSSL RSA_new()
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//
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return (VOID *) RSA_new ();
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}
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/**
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Release the specified RSA context.
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@param[in] RsaContext Pointer to the RSA context to be released.
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**/
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VOID
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EFIAPI
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RsaFree (
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IN VOID *RsaContext
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)
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{
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//
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// Free OpenSSL RSA Context
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//
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RSA_free ((RSA *) RsaContext);
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}
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/**
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Sets the tag-designated key component into the established RSA context.
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This function sets the tag-designated RSA key component into the established
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RSA context from the user-specified non-negative integer (octet string format
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represented in RSA PKCS#1).
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If BigNumber is NULL, then the specified key component in RSA context is cleared.
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If RsaContext is NULL, then return FALSE.
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@param[in, out] RsaContext Pointer to RSA context being set.
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@param[in] KeyTag Tag of RSA key component being set.
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@param[in] BigNumber Pointer to octet integer buffer.
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If NULL, then the specified key component in RSA
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context is cleared.
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@param[in] BnSize Size of big number buffer in bytes.
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If BigNumber is NULL, then it is ignored.
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@retval TRUE RSA key component was set successfully.
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@retval FALSE Invalid RSA key component tag.
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**/
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BOOLEAN
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EFIAPI
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RsaSetKey (
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IN OUT VOID *RsaContext,
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IN RSA_KEY_TAG KeyTag,
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IN CONST UINT8 *BigNumber,
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IN UINTN BnSize
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)
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{
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RSA *RsaKey;
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BIGNUM *BnN;
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BIGNUM *BnE;
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BIGNUM *BnD;
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BIGNUM *BnP;
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BIGNUM *BnQ;
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BIGNUM *BnDp;
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BIGNUM *BnDq;
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BIGNUM *BnQInv;
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//
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// Check input parameters.
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//
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if (RsaContext == NULL || BnSize > INT_MAX) {
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return FALSE;
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}
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BnN = NULL;
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BnE = NULL;
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BnD = NULL;
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BnP = NULL;
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BnQ = NULL;
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BnDp = NULL;
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BnDq = NULL;
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BnQInv = NULL;
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//
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// Retrieve the components from RSA object.
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//
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RsaKey = (RSA *) RsaContext;
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RSA_get0_key (RsaKey, (const BIGNUM **)&BnN, (const BIGNUM **)&BnE, (const BIGNUM **)&BnD);
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RSA_get0_factors (RsaKey, (const BIGNUM **)&BnP, (const BIGNUM **)&BnQ);
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RSA_get0_crt_params (RsaKey, (const BIGNUM **)&BnDp, (const BIGNUM **)&BnDq, (const BIGNUM **)&BnQInv);
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//
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// Set RSA Key Components by converting octet string to OpenSSL BN representation.
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// NOTE: For RSA public key (used in signature verification), only public components
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// (N, e) are needed.
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//
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switch (KeyTag) {
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//
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// RSA Public Modulus (N), Public Exponent (e) and Private Exponent (d)
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//
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case RsaKeyN:
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case RsaKeyE:
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case RsaKeyD:
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if (BnN == NULL) {
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BnN = BN_new ();
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}
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if (BnE == NULL) {
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BnE = BN_new ();
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}
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if (BnD == NULL) {
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BnD = BN_new ();
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}
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if ((BnN == NULL) || (BnE == NULL) || (BnD == NULL)) {
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return FALSE;
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}
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switch (KeyTag) {
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case RsaKeyN:
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BnN = BN_bin2bn (BigNumber, (UINT32)BnSize, BnN);
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break;
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case RsaKeyE:
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BnE = BN_bin2bn (BigNumber, (UINT32)BnSize, BnE);
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break;
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case RsaKeyD:
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BnD = BN_bin2bn (BigNumber, (UINT32)BnSize, BnD);
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break;
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default:
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return FALSE;
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}
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if (RSA_set0_key (RsaKey, BN_dup(BnN), BN_dup(BnE), BN_dup(BnD)) == 0) {
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return FALSE;
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}
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break;
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//
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// RSA Secret Prime Factor of Modulus (p and q)
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//
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case RsaKeyP:
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case RsaKeyQ:
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if (BnP == NULL) {
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BnP = BN_new ();
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}
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if (BnQ == NULL) {
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BnQ = BN_new ();
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}
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if ((BnP == NULL) || (BnQ == NULL)) {
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return FALSE;
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}
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switch (KeyTag) {
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case RsaKeyP:
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BnP = BN_bin2bn (BigNumber, (UINT32)BnSize, BnP);
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break;
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case RsaKeyQ:
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BnQ = BN_bin2bn (BigNumber, (UINT32)BnSize, BnQ);
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break;
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default:
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return FALSE;
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}
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if (RSA_set0_factors (RsaKey, BN_dup(BnP), BN_dup(BnQ)) == 0) {
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return FALSE;
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}
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break;
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//
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// p's CRT Exponent (== d mod (p - 1)), q's CRT Exponent (== d mod (q - 1)),
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// and CRT Coefficient (== 1/q mod p)
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//
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case RsaKeyDp:
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case RsaKeyDq:
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case RsaKeyQInv:
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if (BnDp == NULL) {
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BnDp = BN_new ();
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}
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if (BnDq == NULL) {
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BnDq = BN_new ();
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}
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if (BnQInv == NULL) {
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BnQInv = BN_new ();
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}
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if ((BnDp == NULL) || (BnDq == NULL) || (BnQInv == NULL)) {
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return FALSE;
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}
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switch (KeyTag) {
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case RsaKeyDp:
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BnDp = BN_bin2bn (BigNumber, (UINT32)BnSize, BnDp);
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break;
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case RsaKeyDq:
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BnDq = BN_bin2bn (BigNumber, (UINT32)BnSize, BnDq);
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break;
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case RsaKeyQInv:
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BnQInv = BN_bin2bn (BigNumber, (UINT32)BnSize, BnQInv);
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break;
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default:
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return FALSE;
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}
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if (RSA_set0_crt_params (RsaKey, BN_dup(BnDp), BN_dup(BnDq), BN_dup(BnQInv)) == 0) {
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return FALSE;
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}
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break;
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default:
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return FALSE;
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}
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return TRUE;
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}
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/**
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Verifies the RSA-SSA signature with EMSA-PKCS1-v1_5 encoding scheme defined in
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RSA PKCS#1.
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If RsaContext is NULL, then return FALSE.
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If MessageHash is NULL, then return FALSE.
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If Signature is NULL, then return FALSE.
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If HashSize is not equal to the size of MD5, SHA-1 or SHA-256 digest, then return FALSE.
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@param[in] RsaContext Pointer to RSA context for signature verification.
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@param[in] MessageHash Pointer to octet message hash to be checked.
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@param[in] HashSize Size of the message hash in bytes.
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@param[in] Signature Pointer to RSA PKCS1-v1_5 signature to be verified.
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@param[in] SigSize Size of signature in bytes.
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@retval TRUE Valid signature encoded in PKCS1-v1_5.
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@retval FALSE Invalid signature or invalid RSA context.
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**/
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BOOLEAN
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EFIAPI
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RsaPkcs1Verify (
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IN VOID *RsaContext,
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IN CONST UINT8 *MessageHash,
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IN UINTN HashSize,
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IN CONST UINT8 *Signature,
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IN UINTN SigSize
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)
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{
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INT32 DigestType;
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UINT8 *SigBuf;
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//
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// Check input parameters.
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//
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if (RsaContext == NULL || MessageHash == NULL || Signature == NULL) {
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return FALSE;
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}
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if (SigSize > INT_MAX || SigSize == 0) {
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return FALSE;
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}
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//
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// Determine the message digest algorithm according to digest size.
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// Only MD5, SHA-1 or SHA-256 algorithm is supported.
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//
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switch (HashSize) {
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case MD5_DIGEST_SIZE:
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DigestType = NID_md5;
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break;
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case SHA1_DIGEST_SIZE:
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DigestType = NID_sha1;
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break;
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case SHA256_DIGEST_SIZE:
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DigestType = NID_sha256;
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break;
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default:
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return FALSE;
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}
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SigBuf = (UINT8 *) Signature;
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return (BOOLEAN) RSA_verify (
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DigestType,
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MessageHash,
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(UINT32) HashSize,
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SigBuf,
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(UINT32) SigSize,
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(RSA *) RsaContext
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);
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}
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