[efi-boot-shim.git] / Cryptlib / Pk / CryptRsaBasic.c

/** @file\r
  RSA Asymmetric Cipher Wrapper Implementation over OpenSSL.\r
\r
  This file implements following APIs which provide basic capabilities for RSA:\r
  1) RsaNew\r
  2) RsaFree\r
  3) RsaSetKey\r
  4) RsaPkcs1Verify\r
\r
Copyright (c) 2009 - 2015, Intel Corporation. All rights reserved.<BR>\r
This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
which accompanies this distribution.  The full text of the license may be found at\r
http://opensource.org/licenses/bsd-license.php\r
\r
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
**/\r
\r
#include "InternalCryptLib.h"\r
\r
#include <openssl/bn.h>\r
#include <openssl/rsa.h>\r
#include <openssl/objects.h>\r
\r
/**\r
  Allocates and initializes one RSA context for subsequent use.\r
\r
  @return  Pointer to the RSA context that has been initialized.\r
           If the allocations fails, RsaNew() returns NULL.\r
\r
**/\r
VOID *\r
EFIAPI\r
RsaNew (\r
  VOID\r
  )\r
{\r
  //\r
  // Allocates & Initializes RSA Context by OpenSSL RSA_new()\r
  //\r
  return (VOID *) RSA_new ();\r
}\r
\r
/**\r
  Release the specified RSA context.\r
\r
  @param[in]  RsaContext  Pointer to the RSA context to be released.\r
\r
**/\r
VOID\r
EFIAPI\r
RsaFree (\r
  IN  VOID  *RsaContext\r
  )\r
{\r
  //\r
  // Free OpenSSL RSA Context\r
  //\r
  RSA_free ((RSA *) RsaContext);\r
}\r
\r
/**\r
  Sets the tag-designated key component into the established RSA context.\r
\r
  This function sets the tag-designated RSA key component into the established\r
  RSA context from the user-specified non-negative integer (octet string format\r
  represented in RSA PKCS#1).\r
  If BigNumber is NULL, then the specified key component in RSA context is cleared.\r
\r
  If RsaContext is NULL, then return FALSE.\r
\r
  @param[in, out]  RsaContext  Pointer to RSA context being set.\r
  @param[in]       KeyTag      Tag of RSA key component being set.\r
  @param[in]       BigNumber   Pointer to octet integer buffer.\r
                               If NULL, then the specified key component in RSA\r
                               context is cleared.\r
  @param[in]       BnSize      Size of big number buffer in bytes.\r
                               If BigNumber is NULL, then it is ignored.\r
\r
  @retval  TRUE   RSA key component was set successfully.\r
  @retval  FALSE  Invalid RSA key component tag.\r
\r
**/\r
BOOLEAN\r
EFIAPI\r
RsaSetKey (\r
  IN OUT  VOID         *RsaContext,\r
  IN      RSA_KEY_TAG  KeyTag,\r
  IN      CONST UINT8  *BigNumber,\r
  IN      UINTN        BnSize\r
  )\r
{\r
  RSA  *RsaKey;\r
\r
  //\r
  // Check input parameters.\r
  //\r
  if (RsaContext == NULL || BnSize > INT_MAX) {\r
    return FALSE;\r
  }\r
\r
  RsaKey = (RSA *) RsaContext;\r
  //\r
  // Set RSA Key Components by converting octet string to OpenSSL BN representation.\r
  // NOTE: For RSA public key (used in signature verification), only public components\r
  //       (N, e) are needed.\r
  //\r
  switch (KeyTag) {\r
\r
  //\r
  // RSA Public Modulus (N)\r
  //\r
  case RsaKeyN:\r
    if (RsaKey->n != NULL) {\r
      BN_free (RsaKey->n);\r
    }\r
    RsaKey->n = NULL;\r
    if (BigNumber == NULL) {\r
      break;\r
    }\r
    RsaKey->n = BN_bin2bn (BigNumber, (UINT32) BnSize, RsaKey->n);\r
    if (RsaKey->n == NULL) {\r
      return FALSE;\r
    }\r
\r
    break;\r
\r
  //\r
  // RSA Public Exponent (e)\r
  //\r
  case RsaKeyE:\r
    if (RsaKey->e != NULL) {\r
      BN_free (RsaKey->e);\r
    }\r
    RsaKey->e = NULL;\r
    if (BigNumber == NULL) {\r
      break;\r
    }\r
    RsaKey->e = BN_bin2bn (BigNumber, (UINT32) BnSize, RsaKey->e);\r
    if (RsaKey->e == NULL) {\r
      return FALSE;\r
    }\r
\r
    break;\r
\r
  //\r
  // RSA Private Exponent (d)\r
  //\r
  case RsaKeyD:\r
    if (RsaKey->d != NULL) {\r
      BN_free (RsaKey->d);\r
    }\r
    RsaKey->d = NULL;\r
    if (BigNumber == NULL) {\r
      break;\r
    }\r
    RsaKey->d = BN_bin2bn (BigNumber, (UINT32) BnSize, RsaKey->d);\r
    if (RsaKey->d == NULL) {\r
      return FALSE;\r
    }\r
\r
    break;\r
\r
  //\r
  // RSA Secret Prime Factor of Modulus (p)\r
  //\r
  case RsaKeyP:\r
    if (RsaKey->p != NULL) {\r
      BN_free (RsaKey->p);\r
    }\r
    RsaKey->p = NULL;\r
    if (BigNumber == NULL) {\r
      break;\r
    }\r
    RsaKey->p = BN_bin2bn (BigNumber, (UINT32) BnSize, RsaKey->p);\r
    if (RsaKey->p == NULL) {\r
      return FALSE;\r
    }\r
\r
    break;\r
\r
  //\r
  // RSA Secret Prime Factor of Modules (q)\r
  //\r
  case RsaKeyQ:\r
    if (RsaKey->q != NULL) {\r
      BN_free (RsaKey->q);\r
    }\r
    RsaKey->q = NULL;\r
    if (BigNumber == NULL) {\r
      break;\r
    }\r
    RsaKey->q = BN_bin2bn (BigNumber, (UINT32) BnSize, RsaKey->q);\r
    if (RsaKey->q == NULL) {\r
      return FALSE;\r
    }\r
\r
    break;\r
\r
  //\r
  // p's CRT Exponent (== d mod (p - 1))\r
  //\r
  case RsaKeyDp:\r
    if (RsaKey->dmp1 != NULL) {\r
      BN_free (RsaKey->dmp1);\r
    }\r
    RsaKey->dmp1 = NULL;\r
    if (BigNumber == NULL) {\r
      break;\r
    }\r
    RsaKey->dmp1 = BN_bin2bn (BigNumber, (UINT32) BnSize, RsaKey->dmp1);\r
    if (RsaKey->dmp1 == NULL) {\r
      return FALSE;\r
    }\r
\r
    break;\r
\r
  //\r
  // q's CRT Exponent (== d mod (q - 1))\r
  //\r
  case RsaKeyDq:\r
    if (RsaKey->dmq1 != NULL) {\r
      BN_free (RsaKey->dmq1);\r
    }\r
    RsaKey->dmq1 = NULL;\r
    if (BigNumber == NULL) {\r
      break;\r
    }\r
    RsaKey->dmq1 = BN_bin2bn (BigNumber, (UINT32) BnSize, RsaKey->dmq1);\r
    if (RsaKey->dmq1 == NULL) {\r
      return FALSE;\r
    }\r
\r
    break;\r
\r
  //\r
  // The CRT Coefficient (== 1/q mod p)\r
  //\r
  case RsaKeyQInv:\r
    if (RsaKey->iqmp != NULL) {\r
      BN_free (RsaKey->iqmp);\r
    }\r
    RsaKey->iqmp = NULL;\r
    if (BigNumber == NULL) {\r
      break;\r
    }\r
    RsaKey->iqmp = BN_bin2bn (BigNumber, (UINT32) BnSize, RsaKey->iqmp);\r
    if (RsaKey->iqmp == NULL) {\r
      return FALSE;\r
    }\r
\r
    break;\r
\r
  default:\r
    return FALSE;\r
  }\r
\r
  return TRUE;\r
}\r
\r
/**\r
  Verifies the RSA-SSA signature with EMSA-PKCS1-v1_5 encoding scheme defined in\r
  RSA PKCS#1.\r
\r
  If RsaContext is NULL, then return FALSE.\r
  If MessageHash is NULL, then return FALSE.\r
  If Signature is NULL, then return FALSE.\r
  If HashSize is not equal to the size of MD5, SHA-1 or SHA-256 digest, then return FALSE.\r
\r
  @param[in]  RsaContext   Pointer to RSA context for signature verification.\r
  @param[in]  MessageHash  Pointer to octet message hash to be checked.\r
  @param[in]  HashSize     Size of the message hash in bytes.\r
  @param[in]  Signature    Pointer to RSA PKCS1-v1_5 signature to be verified.\r
  @param[in]  SigSize      Size of signature in bytes.\r
\r
  @retval  TRUE   Valid signature encoded in PKCS1-v1_5.\r
  @retval  FALSE  Invalid signature or invalid RSA context.\r
\r
**/\r
BOOLEAN\r
EFIAPI\r
RsaPkcs1Verify (\r
  IN  VOID         *RsaContext,\r
  IN  CONST UINT8  *MessageHash,\r
  IN  UINTN        HashSize,\r
  IN  CONST UINT8  *Signature,\r
  IN  UINTN        SigSize\r
  )\r
{\r
  INT32    DigestType;\r
  UINT8    *SigBuf;\r
\r
  //\r
  // Check input parameters.\r
  //\r
  if (RsaContext == NULL || MessageHash == NULL || Signature == NULL) {\r
    return FALSE;\r
  }\r
\r
  if (SigSize > INT_MAX || SigSize == 0) {\r
    return FALSE;\r
  }\r
\r
  //\r
  // Determine the message digest algorithm according to digest size.\r
  //   Only MD5, SHA-1 or SHA-256 algorithm is supported. \r
  //\r
  switch (HashSize) {\r
  case MD5_DIGEST_SIZE:\r
    DigestType = NID_md5;\r
    break;\r
    \r
  case SHA1_DIGEST_SIZE:\r
    DigestType = NID_sha1;\r
    break;\r
    \r
  case SHA256_DIGEST_SIZE:\r
    DigestType = NID_sha256;\r
    break;\r
\r
  default:\r
    return FALSE;\r
  }\r
\r
  SigBuf = (UINT8 *) Signature;\r
  return (BOOLEAN) RSA_verify (\r
                     DigestType,\r
                     MessageHash,\r
                     (UINT32) HashSize,\r
                     SigBuf,\r
                     (UINT32) SigSize,\r
                     (RSA *) RsaContext\r
                     );\r
}\r
Commit	Line	Data
72bb39c0 SL	1	/** @file\r
	2	RSA Asymmetric Cipher Wrapper Implementation over OpenSSL.\r
	3	\r
	4	This file implements following APIs which provide basic capabilities for RSA:\r
	5	1) RsaNew\r
	6	2) RsaFree\r
	7	3) RsaSetKey\r
	8	4) RsaPkcs1Verify\r
	9	\r
031e5cce	10	Copyright (c) 2009 - 2015, Intel Corporation. All rights reserved.<BR>\r
72bb39c0 SL	11	This program and the accompanying materials\r
	12	are licensed and made available under the terms and conditions of the BSD License\r
	13	which accompanies this distribution. The full text of the license may be found at\r
	14	http://opensource.org/licenses/bsd-license.php\r
	15	\r
	16	THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
	17	WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
	18	\r
	19	**/\r
	20	\r
	21	#include "InternalCryptLib.h"\r
	22	\r
62f0afa2	23	#include <openssl/bn.h>\r
72bb39c0 SL	24	#include <openssl/rsa.h>\r
	25	#include <openssl/objects.h>\r
	26	\r
	27	/**\r
	28	Allocates and initializes one RSA context for subsequent use.\r
	29	\r
	30	@return Pointer to the RSA context that has been initialized.\r
	31	If the allocations fails, RsaNew() returns NULL.\r
	32	\r
	33	**/\r
	34	VOID *\r
	35	EFIAPI\r
	36	RsaNew (\r
	37	VOID\r
	38	)\r
	39	{\r
	40	//\r
	41	// Allocates & Initializes RSA Context by OpenSSL RSA_new()\r
	42	//\r
	43	return (VOID *) RSA_new ();\r
	44	}\r
	45	\r
	46	/**\r
	47	Release the specified RSA context.\r
	48	\r
	49	@param[in] RsaContext Pointer to the RSA context to be released.\r
	50	\r
	51	**/\r
	52	VOID\r
	53	EFIAPI\r
	54	RsaFree (\r
	55	IN VOID *RsaContext\r
	56	)\r
	57	{\r
	58	//\r
	59	// Free OpenSSL RSA Context\r
	60	//\r
	61	RSA_free ((RSA *) RsaContext);\r
	62	}\r
	63	\r
	64	/**\r
	65	Sets the tag-designated key component into the established RSA context.\r
	66	\r
	67	This function sets the tag-designated RSA key component into the established\r
	68	RSA context from the user-specified non-negative integer (octet string format\r
	69	represented in RSA PKCS#1).\r
f4173af1	70	If BigNumber is NULL, then the specified key component in RSA context is cleared.\r
72bb39c0 SL	71	\r
	72	If RsaContext is NULL, then return FALSE.\r
	73	\r
	74	@param[in, out] RsaContext Pointer to RSA context being set.\r
	75	@param[in] KeyTag Tag of RSA key component being set.\r
	76	@param[in] BigNumber Pointer to octet integer buffer.\r
f4173af1	77	If NULL, then the specified key component in RSA\r
72bb39c0 SL	78	context is cleared.\r
	79	@param[in] BnSize Size of big number buffer in bytes.\r
	80	If BigNumber is NULL, then it is ignored.\r
	81	\r
	82	@retval TRUE RSA key component was set successfully.\r
	83	@retval FALSE Invalid RSA key component tag.\r
	84	\r
	85	**/\r
	86	BOOLEAN\r
	87	EFIAPI\r
	88	RsaSetKey (\r
	89	IN OUT VOID *RsaContext,\r
	90	IN RSA_KEY_TAG KeyTag,\r
	91	IN CONST UINT8 *BigNumber,\r
	92	IN UINTN BnSize\r
	93	)\r
	94	{\r
031e5cce	95	RSA *RsaKey;\r
72bb39c0 SL	96	\r
	97	//\r
	98	// Check input parameters.\r
	99	//\r
	100	if (RsaContext == NULL \|\| BnSize > INT_MAX) {\r
	101	return FALSE;\r
	102	}\r
	103	\r
	104	RsaKey = (RSA *) RsaContext;\r
	105	//\r
	106	// Set RSA Key Components by converting octet string to OpenSSL BN representation.\r
	107	// NOTE: For RSA public key (used in signature verification), only public components\r
	108	// (N, e) are needed.\r
	109	//\r
	110	switch (KeyTag) {\r
	111	\r
	112	//\r
031e5cce	113	// RSA Public Modulus (N)\r
72bb39c0 SL	114	//\r
72bb39c0 SL	115	case RsaKeyN:\r
031e5cce SM	116	if (RsaKey->n != NULL) {\r
031e5cce SM	117	BN_free (RsaKey->n);\r
b6f94dbe	118	}\r
031e5cce SM	119	RsaKey->n = NULL;\r
	120	if (BigNumber == NULL) {\r
	121	break;\r
b6f94dbe	122	}\r
031e5cce SM	123	RsaKey->n = BN_bin2bn (BigNumber, (UINT32) BnSize, RsaKey->n);\r
	124	if (RsaKey->n == NULL) {\r
	125	return FALSE;\r
72bb39c0 SL	126	}\r
72bb39c0 SL	127	\r
031e5cce SM	128	break;\r
	129	\r
	130	//\r
	131	// RSA Public Exponent (e)\r
	132	//\r
	133	case RsaKeyE:\r
	134	if (RsaKey->e != NULL) {\r
	135	BN_free (RsaKey->e);\r
	136	}\r
	137	RsaKey->e = NULL;\r
	138	if (BigNumber == NULL) {\r
	139	break;\r
	140	}\r
	141	RsaKey->e = BN_bin2bn (BigNumber, (UINT32) BnSize, RsaKey->e);\r
	142	if (RsaKey->e == NULL) {\r
72bb39c0 SL	143	return FALSE;\r
	144	}\r
	145	\r
031e5cce SM	146	break;\r
	147	\r
	148	//\r
	149	// RSA Private Exponent (d)\r
	150	//\r
	151	case RsaKeyD:\r
	152	if (RsaKey->d != NULL) {\r
	153	BN_free (RsaKey->d);\r
	154	}\r
	155	RsaKey->d = NULL;\r
	156	if (BigNumber == NULL) {\r
7bf7a6d0	157	break;\r
72bb39c0	158	}\r
031e5cce SM	159	RsaKey->d = BN_bin2bn (BigNumber, (UINT32) BnSize, RsaKey->d);\r
031e5cce SM	160	if (RsaKey->d == NULL) {\r
72bb39c0 SL	161	return FALSE;\r
	162	}\r
	163	\r
b6f94dbe MTL	164	break;\r
	165	\r
	166	//\r
031e5cce	167	// RSA Secret Prime Factor of Modulus (p)\r
b6f94dbe	168	//\r
7bf7a6d0	169	case RsaKeyP:\r
031e5cce SM	170	if (RsaKey->p != NULL) {\r
031e5cce SM	171	BN_free (RsaKey->p);\r
b6f94dbe	172	}\r
031e5cce SM	173	RsaKey->p = NULL;\r
	174	if (BigNumber == NULL) {\r
	175	break;\r
72bb39c0	176	}\r
031e5cce SM	177	RsaKey->p = BN_bin2bn (BigNumber, (UINT32) BnSize, RsaKey->p);\r
031e5cce SM	178	if (RsaKey->p == NULL) {\r
72bb39c0 SL	179	return FALSE;\r
	180	}\r
	181	\r
031e5cce SM	182	break;\r
	183	\r
	184	//\r
	185	// RSA Secret Prime Factor of Modules (q)\r
	186	//\r
	187	case RsaKeyQ:\r
	188	if (RsaKey->q != NULL) {\r
	189	BN_free (RsaKey->q);\r
	190	}\r
	191	RsaKey->q = NULL;\r
	192	if (BigNumber == NULL) {\r
7bf7a6d0	193	break;\r
f4173af1	194	}\r
031e5cce SM	195	RsaKey->q = BN_bin2bn (BigNumber, (UINT32) BnSize, RsaKey->q);\r
031e5cce SM	196	if (RsaKey->q == NULL) {\r
72bb39c0 SL	197	return FALSE;\r
	198	}\r
	199	\r
b6f94dbe MTL	200	break;\r
	201	\r
	202	//\r
031e5cce	203	// p's CRT Exponent (== d mod (p - 1))\r
b6f94dbe	204	//\r
7bf7a6d0	205	case RsaKeyDp:\r
031e5cce SM	206	if (RsaKey->dmp1 != NULL) {\r
031e5cce SM	207	BN_free (RsaKey->dmp1);\r
b6f94dbe	208	}\r
031e5cce SM	209	RsaKey->dmp1 = NULL;\r
	210	if (BigNumber == NULL) {\r
	211	break;\r
7bf7a6d0	212	}\r
031e5cce SM	213	RsaKey->dmp1 = BN_bin2bn (BigNumber, (UINT32) BnSize, RsaKey->dmp1);\r
031e5cce SM	214	if (RsaKey->dmp1 == NULL) {\r
f4173af1	215	return FALSE;\r
72bb39c0	216	}\r
b6f94dbe	217	\r
031e5cce SM	218	break;\r
	219	\r
	220	//\r
	221	// q's CRT Exponent (== d mod (q - 1))\r
	222	//\r
	223	case RsaKeyDq:\r
	224	if (RsaKey->dmq1 != NULL) {\r
	225	BN_free (RsaKey->dmq1);\r
	226	}\r
	227	RsaKey->dmq1 = NULL;\r
	228	if (BigNumber == NULL) {\r
b6f94dbe	229	break;\r
031e5cce SM	230	}\r
	231	RsaKey->dmq1 = BN_bin2bn (BigNumber, (UINT32) BnSize, RsaKey->dmq1);\r
	232	if (RsaKey->dmq1 == NULL) {\r
7bf7a6d0	233	return FALSE;\r
b6f94dbe	234	}\r
031e5cce SM	235	\r
	236	break;\r
	237	\r
	238	//\r
	239	// The CRT Coefficient (== 1/q mod p)\r
	240	//\r
	241	case RsaKeyQInv:\r
	242	if (RsaKey->iqmp != NULL) {\r
	243	BN_free (RsaKey->iqmp);\r
	244	}\r
	245	RsaKey->iqmp = NULL;\r
	246	if (BigNumber == NULL) {\r
	247	break;\r
	248	}\r
	249	RsaKey->iqmp = BN_bin2bn (BigNumber, (UINT32) BnSize, RsaKey->iqmp);\r
	250	if (RsaKey->iqmp == NULL) {\r
72bb39c0 SL	251	return FALSE;\r
	252	}\r
	253	\r
	254	break;\r
	255	\r
	256	default:\r
	257	return FALSE;\r
	258	}\r
	259	\r
	260	return TRUE;\r
	261	}\r
	262	\r
	263	/**\r
	264	Verifies the RSA-SSA signature with EMSA-PKCS1-v1_5 encoding scheme defined in\r
	265	RSA PKCS#1.\r
	266	\r
	267	If RsaContext is NULL, then return FALSE.\r
	268	If MessageHash is NULL, then return FALSE.\r
	269	If Signature is NULL, then return FALSE.\r
	270	If HashSize is not equal to the size of MD5, SHA-1 or SHA-256 digest, then return FALSE.\r
	271	\r
	272	@param[in] RsaContext Pointer to RSA context for signature verification.\r
	273	@param[in] MessageHash Pointer to octet message hash to be checked.\r
	274	@param[in] HashSize Size of the message hash in bytes.\r
	275	@param[in] Signature Pointer to RSA PKCS1-v1_5 signature to be verified.\r
	276	@param[in] SigSize Size of signature in bytes.\r
	277	\r
	278	@retval TRUE Valid signature encoded in PKCS1-v1_5.\r
	279	@retval FALSE Invalid signature or invalid RSA context.\r
	280	\r
	281	**/\r
	282	BOOLEAN\r
	283	EFIAPI\r
	284	RsaPkcs1Verify (\r
	285	IN VOID *RsaContext,\r
	286	IN CONST UINT8 *MessageHash,\r
	287	IN UINTN HashSize,\r
	288	IN CONST UINT8 *Signature,\r
	289	IN UINTN SigSize\r
	290	)\r
	291	{\r
	292	INT32 DigestType;\r
	293	UINT8 *SigBuf;\r
	294	\r
	295	//\r
	296	// Check input parameters.\r
	297	//\r
	298	if (RsaContext == NULL \|\| MessageHash == NULL \|\| Signature == NULL) {\r
	299	return FALSE;\r
	300	}\r
	301	\r
	302	if (SigSize > INT_MAX \|\| SigSize == 0) {\r
	303	return FALSE;\r
	304	}\r
	305	\r
	306	//\r
	307	// Determine the message digest algorithm according to digest size.\r
	308	// Only MD5, SHA-1 or SHA-256 algorithm is supported. \r
	309	//\r
	310	switch (HashSize) {\r
	311	case MD5_DIGEST_SIZE:\r
	312	DigestType = NID_md5;\r
	313	break;\r
031e5cce	314	\r
72bb39c0 SL	315	case SHA1_DIGEST_SIZE:\r
	316	DigestType = NID_sha1;\r
	317	break;\r
031e5cce	318	\r
72bb39c0 SL	319	case SHA256_DIGEST_SIZE:\r
	320	DigestType = NID_sha256;\r
	321	break;\r
	322	\r
	323	default:\r
	324	return FALSE;\r
	325	}\r
	326	\r
	327	SigBuf = (UINT8 *) Signature;\r
	328	return (BOOLEAN) RSA_verify (\r
	329	DigestType,\r
	330	MessageHash,\r
	331	(UINT32) HashSize,\r
	332	SigBuf,\r
	333	(UINT32) SigSize,\r
	334	(RSA *) RsaContext\r
	335	);\r
	336	}\r