c9d7262843
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=2389 Currently RSA signing scheme support is available for MD5, SHA-1 or SHA-256 algorithms.The fix is to extend this support for SHA384 and SHA512. Cc: Liming Gao <liming.gao@intel.com> Cc: Jian J Wang <jian.j.wang@intel.com> Cc: Bob Feng <bob.c.feng@intel.com> Signed-off-by: Pavana.K <pavana.k@intel.com> Reviewed-by: Jian J Wang <jian.j.wang@intel.com>
328 lines
7.8 KiB
C
328 lines
7.8 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 - 2020, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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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, SHA-256, SHA-384 or SHA-512 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, SHA-256, SHA-384 or SHA-512 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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case SHA384_DIGEST_SIZE:
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DigestType = NID_sha384;
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break;
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case SHA512_DIGEST_SIZE:
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DigestType = NID_sha512;
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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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