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/* pkcs7.h
*
* Copyright (C) 2006-2015 wolfSSL Inc.
*
* This file is part of wolfSSL. (formerly known as CyaSSL)
*
* wolfSSL is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* wolfSSL is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#ifndef WOLF_CRYPT_PKCS7_H
#define WOLF_CRYPT_PKCS7_H
#include <wolfssl/wolfcrypt/types.h>
#ifdef HAVE_PKCS7
#ifndef NO_ASN
#include <wolfssl/wolfcrypt/asn.h>
#endif
#include <wolfssl/wolfcrypt/asn_public.h>
#include <wolfssl/wolfcrypt/random.h>
#ifndef NO_DES3
#include <wolfssl/wolfcrypt/des3.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
/* PKCS#7 content types, ref RFC 2315 (Section 14) */
enum PKCS7_TYPES {
PKCS7_MSG = 650, /* 1.2.840.113549.1.7 */
DATA = 651, /* 1.2.840.113549.1.7.1 */
SIGNED_DATA = 652, /* 1.2.840.113549.1.7.2 */
ENVELOPED_DATA = 653, /* 1.2.840.113549.1.7.3 */
SIGNED_AND_ENVELOPED_DATA = 654, /* 1.2.840.113549.1.7.4 */
DIGESTED_DATA = 655, /* 1.2.840.113549.1.7.5 */
ENCRYPTED_DATA = 656 /* 1.2.840.113549.1.7.6 */
};
enum Pkcs7_Misc {
PKCS7_NONCE_SZ = 16,
MAX_ENCRYPTED_KEY_SZ = 512, /* max enc. key size, RSA <= 4096 */
MAX_CONTENT_KEY_LEN = DES3_KEYLEN, /* highest current cipher is 3DES */
MAX_RECIP_SZ = MAX_VERSION_SZ +
MAX_SEQ_SZ + ASN_NAME_MAX + MAX_SN_SZ +
MAX_SEQ_SZ + MAX_ALGO_SZ + 1 + MAX_ENCRYPTED_KEY_SZ
};
typedef struct PKCS7Attrib {
byte* oid;
word32 oidSz;
byte* value;
word32 valueSz;
} PKCS7Attrib;
typedef struct PKCS7 {
byte* content; /* inner content, not owner */
word32 contentSz; /* content size */
int contentOID; /* PKCS#7 content type OID sum */
RNG* rng;
int hashOID;
int encryptOID; /* key encryption algorithm OID */
byte* singleCert; /* recipient cert, DER, not owner */
word32 singleCertSz; /* size of recipient cert buffer, bytes */
byte issuerHash[KEYID_SIZE]; /* hash of all alt Names */
byte* issuer; /* issuer name of singleCert */
word32 issuerSz; /* length of issuer name */
byte issuerSn[MAX_SN_SZ]; /* singleCert's serial number */
word32 issuerSnSz; /* length of serial number */
byte publicKey[512];
word32 publicKeySz;
byte* privateKey; /* private key, DER, not owner */
word32 privateKeySz; /* size of private key buffer, bytes */
PKCS7Attrib* signedAttribs;
word32 signedAttribsSz;
} PKCS7;
WOLFSSL_LOCAL int wc_SetContentType(int pkcs7TypeOID, byte* output);
WOLFSSL_LOCAL int wc_GetContentType(const byte* input, word32* inOutIdx,
word32* oid, word32 maxIdx);
WOLFSSL_LOCAL int wc_CreateRecipientInfo(const byte* cert, word32 certSz,
int keyEncAlgo, int blockKeySz,
RNG* rng, byte* contentKeyPlain,
byte* contentKeyEnc,
int* keyEncSz, byte* out, word32 outSz);
WOLFSSL_API int wc_PKCS7_InitWithCert(PKCS7* pkcs7, byte* cert, word32 certSz);
WOLFSSL_API void wc_PKCS7_Free(PKCS7* pkcs7);
WOLFSSL_API int wc_PKCS7_EncodeData(PKCS7* pkcs7, byte* output, word32 outputSz);
WOLFSSL_API int wc_PKCS7_EncodeSignedData(PKCS7* pkcs7,
byte* output, word32 outputSz);
WOLFSSL_API int wc_PKCS7_VerifySignedData(PKCS7* pkcs7,
byte* pkiMsg, word32 pkiMsgSz);
WOLFSSL_API int wc_PKCS7_EncodeEnvelopedData(PKCS7* pkcs7,
byte* output, word32 outputSz);
WOLFSSL_API int wc_PKCS7_DecodeEnvelopedData(PKCS7* pkcs7, byte* pkiMsg,
word32 pkiMsgSz, byte* output,
word32 outputSz);
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* HAVE_PKCS7 */
#endif /* WOLF_CRYPT_PKCS7_H */
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