124 lines
4.7 KiB
C
124 lines
4.7 KiB
C
/* pkcs7.h
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*
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* Copyright (C) 2006-2013 wolfSSL Inc.
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*
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* This file is part of CyaSSL.
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*
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* CyaSSL is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* CyaSSL is distributed in the hope that it will be useful,
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* * but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_PKCS7
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#ifndef CTAO_CRYPT_PKCS7_H
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#define CTAO_CRYPT_PKCS7_H
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#include <cyassl/ctaocrypt/types.h>
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#include <cyassl/ctaocrypt/asn.h>
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#include <cyassl/ctaocrypt/asn_public.h>
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#include <cyassl/ctaocrypt/random.h>
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#include <cyassl/ctaocrypt/des3.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* PKCS#7 content types, ref RFC 2315 (Section 14) */
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enum PKCS7_TYPES {
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PKCS7_MSG = 650, /* 1.2.840.113549.1.7 */
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DATA = 651, /* 1.2.840.113549.1.7.1 */
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SIGNED_DATA = 652, /* 1.2.840.113549.1.7.2 */
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ENVELOPED_DATA = 653, /* 1.2.840.113549.1.7.3 */
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SIGNED_AND_ENVELOPED_DATA = 654, /* 1.2.840.113549.1.7.4 */
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DIGESTED_DATA = 655, /* 1.2.840.113549.1.7.5 */
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ENCRYPTED_DATA = 656 /* 1.2.840.113549.1.7.6 */
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};
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enum Pkcs7_Misc {
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PKCS7_NONCE_SZ = 16,
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MAX_ENCRYPTED_KEY_SZ = 512, /* max enc. key size, RSA <= 4096 */
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MAX_CONTENT_KEY_LEN = DES3_KEYLEN, /* highest current cipher is 3DES */
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MAX_RECIP_SZ = MAX_VERSION_SZ +
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MAX_SEQ_SZ + ASN_NAME_MAX + MAX_SN_SZ +
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MAX_SEQ_SZ + MAX_ALGO_SZ + 1 + MAX_ENCRYPTED_KEY_SZ
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};
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typedef struct PKCS7Attrib {
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byte* oid;
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word32 oidSz;
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byte* value;
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word32 valueSz;
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} PKCS7Attrib;
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typedef struct PKCS7 {
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byte* content; /* inner content, not owner */
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word32 contentSz; /* content size */
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int contentOID; /* PKCS#7 content type OID sum */
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RNG* rng;
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int hashOID;
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int encryptOID; /* key encryption algorithm OID */
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byte* singleCert; /* recipient cert, DER, not owner */
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word32 singleCertSz; /* size of recipient cert buffer, bytes */
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byte issuerHash[SHA_SIZE]; /* hash of all alt Names */
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byte* issuer; /* issuer name of singleCert */
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word32 issuerSz; /* length of issuer name */
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byte issuerSn[MAX_SN_SZ]; /* singleCert's serial number */
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word32 issuerSnSz; /* length of serial number */
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byte publicKey[512];
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word32 publicKeySz;
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byte* privateKey; /* private key, DER, not owner */
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word32 privateKeySz; /* size of private key buffer, bytes */
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PKCS7Attrib* signedAttribs;
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word32 signedAttribsSz;
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} PKCS7;
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CYASSL_LOCAL int SetContentType(int pkcs7TypeOID, byte* output);
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CYASSL_LOCAL int GetContentType(const byte* input, word32* inOutIdx,
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word32* oid, word32 maxIdx);
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CYASSL_LOCAL int CreateRecipientInfo(const byte* cert, word32 certSz,
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int keyEncAlgo, int blockKeySz,
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RNG* rng, byte* contentKeyPlain,
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byte* contentKeyEnc,
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int* keyEncSz, byte* out, word32 outSz);
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CYASSL_API int PKCS7_InitWithCert(PKCS7* pkcs7, byte* cert, word32 certSz);
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CYASSL_API void PKCS7_Free(PKCS7* pkcs7);
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CYASSL_API int PKCS7_EncodeData(PKCS7* pkcs7, byte* output, word32 outputSz);
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CYASSL_API int PKCS7_EncodeSignedData(PKCS7* pkcs7,
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byte* output, word32 outputSz);
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CYASSL_API int PKCS7_VerifySignedData(PKCS7* pkcs7,
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byte* pkiMsg, word32 pkiMsgSz);
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CYASSL_API int PKCS7_EncodeEnvelopedData(PKCS7* pkcs7,
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byte* output, word32 outputSz);
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CYASSL_API int PKCS7_DecodeEnvelopedData(PKCS7* pkcs7, byte* pkiMsg,
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word32 pkiMsgSz, byte* output,
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word32 outputSz);
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /* CTAO_CRYPT_PKCS7_H */
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#endif /* HAVE_PKCS7 */
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