501 lines
21 KiB
C
501 lines
21 KiB
C
/* pkcs7.h
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*
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* Copyright (C) 2006-2019 wolfSSL Inc.
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*
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* This file is part of wolfSSL.
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*
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* wolfSSL 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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* wolfSSL 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
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*/
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/*!
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\file wolfssl/wolfcrypt/pkcs7.h
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*/
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#ifndef WOLF_CRYPT_PKCS7_H
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#define WOLF_CRYPT_PKCS7_H
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#include <wolfssl/wolfcrypt/types.h>
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#ifdef HAVE_PKCS7
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#ifndef NO_ASN
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#include <wolfssl/wolfcrypt/asn.h>
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#endif
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#include <wolfssl/wolfcrypt/asn_public.h>
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#include <wolfssl/wolfcrypt/random.h>
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#ifndef NO_AES
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#include <wolfssl/wolfcrypt/aes.h>
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#endif
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#ifndef NO_DES3
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#include <wolfssl/wolfcrypt/des3.h>
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Max number of certificates that PKCS7 structure can parse */
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#ifndef MAX_PKCS7_CERTS
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#define MAX_PKCS7_CERTS 4
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#endif
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#ifndef MAX_ORI_TYPE_SZ
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#define MAX_ORI_TYPE_SZ MAX_OID_SZ
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#endif
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#ifndef MAX_ORI_VALUE_SZ
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#define MAX_ORI_VALUE_SZ 512
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#endif
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#ifndef MAX_SIGNED_ATTRIBS_SZ
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#define MAX_SIGNED_ATTRIBS_SZ 7
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#endif
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#ifndef MAX_AUTH_ATTRIBS_SZ
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#define MAX_AUTH_ATTRIBS_SZ 7
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#endif
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#ifndef MAX_UNAUTH_ATTRIBS_SZ
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#define MAX_UNAUTH_ATTRIBS_SZ 7
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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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#if defined(HAVE_LIBZ) && !defined(NO_PKCS7_COMPRESSED_DATA)
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COMPRESSED_DATA = 678, /* 1.2.840.113549.1.9.16.1.9, RFC 3274 */
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#endif
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FIRMWARE_PKG_DATA = 685, /* 1.2.840.113549.1.9.16.1.16, RFC 4108 */
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AUTH_ENVELOPED_DATA = 692 /* 1.2.840.113549.1.9.16.1.23, RFC 5083 */
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};
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enum PKCS7_STATE {
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WC_PKCS7_START = 0,
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/* decode encrypted */
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WC_PKCS7_STAGE2,
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WC_PKCS7_STAGE3,
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WC_PKCS7_STAGE4,
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WC_PKCS7_STAGE5,
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WC_PKCS7_STAGE6,
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WC_PKCS7_VERIFY_STAGE2,
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WC_PKCS7_VERIFY_STAGE3,
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WC_PKCS7_VERIFY_STAGE4,
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WC_PKCS7_VERIFY_STAGE5,
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WC_PKCS7_VERIFY_STAGE6,
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/* parse info set */
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WC_PKCS7_INFOSET_START,
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WC_PKCS7_INFOSET_BER,
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WC_PKCS7_INFOSET_STAGE1,
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WC_PKCS7_INFOSET_STAGE2,
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WC_PKCS7_INFOSET_END,
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/* decode enveloped data */
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WC_PKCS7_ENV_2,
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WC_PKCS7_ENV_3,
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WC_PKCS7_ENV_4,
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WC_PKCS7_ENV_5,
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/* decode auth enveloped */
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WC_PKCS7_AUTHENV_2,
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WC_PKCS7_AUTHENV_3,
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WC_PKCS7_AUTHENV_4,
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WC_PKCS7_AUTHENV_5,
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WC_PKCS7_AUTHENV_6,
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WC_PKCS7_AUTHENV_ATRB,
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WC_PKCS7_AUTHENV_ATRBEND,
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WC_PKCS7_AUTHENV_7,
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/* decryption state types */
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WC_PKCS7_DECRYPT_KTRI,
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WC_PKCS7_DECRYPT_KTRI_2,
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WC_PKCS7_DECRYPT_KTRI_3,
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WC_PKCS7_DECRYPT_KARI,
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WC_PKCS7_DECRYPT_KEKRI,
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WC_PKCS7_DECRYPT_PWRI,
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WC_PKCS7_DECRYPT_ORI,
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WC_PKCS7_DECRYPT_DONE,
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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 = 32, /* highest current cipher is AES-256-CBC */
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MAX_CONTENT_IV_SIZE = 16, /* highest current is AES128 */
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#ifndef NO_AES
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MAX_CONTENT_BLOCK_LEN = AES_BLOCK_SIZE,
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#else
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MAX_CONTENT_BLOCK_LEN = DES_BLOCK_SIZE,
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#endif
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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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#if (defined(HAVE_FIPS) && defined(HAVE_FIPS_VERSION) && \
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(HAVE_FIPS_VERSION >= 2)) || defined(HAVE_SELFTEST)
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/* In the event of fips cert 3389 or CAVP selftest build, these enums are
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* not in aes.h for use with pkcs7 so enumerate it here outside the fips
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* boundary */
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GCM_NONCE_MID_SZ = 12, /* The usual default nonce size for AES-GCM. */
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CCM_NONCE_MIN_SZ = 7,
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#endif
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};
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enum Cms_Options {
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CMS_SKID = 1,
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CMS_ISSUER_AND_SERIAL_NUMBER = 2,
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};
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#define DEGENERATE_SID 3
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/* CMS/PKCS#7 RecipientInfo types, RFC 5652, Section 6.2 */
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enum Pkcs7_RecipientInfo_Types {
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PKCS7_KTRI = 0,
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PKCS7_KARI = 1,
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PKCS7_KEKRI = 2,
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PKCS7_PWRI = 3,
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PKCS7_ORI = 4
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};
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typedef struct PKCS7Attrib {
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const byte* oid;
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word32 oidSz;
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const byte* value;
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word32 valueSz;
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} PKCS7Attrib;
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typedef struct PKCS7DecodedAttrib {
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struct PKCS7DecodedAttrib* next;
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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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} PKCS7DecodedAttrib;
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typedef struct PKCS7State PKCS7State;
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typedef struct Pkcs7Cert Pkcs7Cert;
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typedef struct Pkcs7EncodedRecip Pkcs7EncodedRecip;
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typedef struct PKCS7 PKCS7;
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typedef struct PKCS7 PKCS7_SIGNED;
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typedef struct PKCS7SignerInfo PKCS7SignerInfo;
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/* OtherRecipientInfo decrypt callback prototype */
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typedef int (*CallbackOriDecrypt)(PKCS7* pkcs7, byte* oriType, word32 oriTypeSz,
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byte* oriValue, word32 oriValueSz,
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byte* decryptedKey, word32* decryptedKeySz,
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void* ctx);
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typedef int (*CallbackOriEncrypt)(PKCS7* pkcs7, byte* cek, word32 cekSz,
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byte* oriType, word32* oriTypeSz,
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byte* oriValue, word32* oriValueSz,
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void* ctx);
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typedef int (*CallbackDecryptContent)(PKCS7* pkcs7, int encryptOID,
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byte* iv, int ivSz, byte* aad, word32 aadSz,
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byte* authTag, word32 authTagSz, byte* in,
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int inSz, byte* out, void* ctx);
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typedef int (*CallbackWrapCEK)(PKCS7* pkcs7, byte* cek, word32 cekSz,
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byte* keyId, word32 keyIdSz,
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byte* originKey, word32 originKeySz,
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byte* out, word32 outSz,
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int keyWrapAlgo, int type, int dir);
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#if defined(HAVE_PKCS7_RSA_RAW_SIGN_CALLBACK) && !defined(NO_RSA)
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/* RSA sign raw digest callback, user builds DigestInfo */
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typedef int (*CallbackRsaSignRawDigest)(PKCS7* pkcs7, byte* digest,
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word32 digestSz, byte* out, word32 outSz,
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byte* privateKey, word32 privateKeySz,
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int devId, int hashOID);
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#endif
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/* Public Structure Warning:
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* Existing members must not be changed to maintain backwards compatibility!
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*/
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struct PKCS7 {
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WC_RNG* rng;
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PKCS7Attrib* signedAttribs;
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byte* content; /* inner content, not owner */
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byte* contentDynamic; /* content if constructed OCTET_STRING */
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byte* singleCert; /* recipient cert, DER, not owner */
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const byte* issuer; /* issuer name of singleCert */
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byte* privateKey; /* private key, DER, not owner */
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void* heap; /* heap hint for dynamic memory */
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#ifdef ASN_BER_TO_DER
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byte* der; /* DER encoded version of message */
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word32 derSz;
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#endif
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byte* cert[MAX_PKCS7_CERTS];
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/* Encrypted-data Content Type */
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byte* encryptionKey; /* block cipher encryption key */
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PKCS7Attrib* unprotectedAttribs; /* optional */
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PKCS7DecodedAttrib* decodedAttrib; /* linked list of decoded attribs */
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/* Enveloped-data optional ukm, not owner */
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byte* ukm;
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word32 ukmSz;
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word32 encryptionKeySz; /* size of key buffer, bytes */
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word32 unprotectedAttribsSz;
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word32 contentSz; /* content size */
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word32 singleCertSz; /* size of recipient cert buffer, bytes */
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word32 issuerSz; /* length of issuer name */
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word32 issuerSnSz; /* length of serial number */
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word32 publicKeySz;
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word32 publicKeyOID; /* key OID (RSAk, ECDSAk, etc) */
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word32 privateKeySz; /* size of private key buffer, bytes */
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word32 signedAttribsSz;
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int contentOID; /* PKCS#7 content type OID sum */
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int hashOID;
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int encryptOID; /* key encryption algorithm OID */
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int keyWrapOID; /* key wrap algorithm OID */
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int keyAgreeOID; /* key agreement algorithm OID */
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int devId; /* device ID for HW based private key */
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byte issuerHash[KEYID_SIZE]; /* hash of all alt Names */
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byte issuerSn[MAX_SN_SZ]; /* singleCert's serial number */
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byte publicKey[MAX_RSA_INT_SZ + MAX_RSA_E_SZ]; /* MAX RSA key size (m + e)*/
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word32 certSz[MAX_PKCS7_CERTS];
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/* flags - up to 16-bits */
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word16 isDynamic:1;
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word16 noDegenerate:1; /* allow degenerate case in verify function */
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word16 detached:1; /* generate detached SignedData signature bundles */
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byte contentType[MAX_OID_SZ]; /* custom contentType byte array */
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word32 contentTypeSz; /* size of contentType, bytes */
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int sidType; /* SignerIdentifier type to use, of type
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Pkcs7_SignerIdentifier_Types, default to
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SID_ISSUER_AND_SERIAL_NUMBER */
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byte issuerSubjKeyId[KEYID_SIZE]; /* SubjectKeyIdentifier of singleCert */
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Pkcs7Cert* certList; /* certificates list for SignedData set */
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Pkcs7EncodedRecip* recipList; /* recipients list */
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byte* cek; /* content encryption key, random, dynamic */
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word32 cekSz; /* size of cek, bytes */
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byte* pass; /* password, for PWRI decryption */
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word32 passSz; /* size of pass, bytes */
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int kekEncryptOID; /* KEK encryption algorithm OID */
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CallbackOriEncrypt oriEncryptCb; /* ORI encrypt callback */
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CallbackOriDecrypt oriDecryptCb; /* ORI decrypt callback */
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void* oriEncryptCtx; /* ORI encrypt user context ptr */
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void* oriDecryptCtx; /* ORI decrypt user context ptr */
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PKCS7Attrib* authAttribs; /* authenticated attribs */
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word32 authAttribsSz;
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PKCS7Attrib* unauthAttribs; /* unauthenticated attribs */
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word32 unauthAttribsSz;
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#ifndef NO_PKCS7_STREAM
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PKCS7State* stream;
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#endif
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word32 state;
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word16 skipDefaultSignedAttribs:1; /* skip adding default signed attribs */
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byte version; /* 1 for RFC 2315 and 3 for RFC 4108 */
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PKCS7SignerInfo* signerInfo;
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CallbackDecryptContent decryptionCb;
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CallbackWrapCEK wrapCEKCb;
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void* decryptionCtx;
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byte* signature;
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byte* plainDigest;
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byte* pkcs7Digest;
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word32 signatureSz;
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word32 plainDigestSz;
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word32 pkcs7DigestSz;
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#if defined(HAVE_PKCS7_RSA_RAW_SIGN_CALLBACK) && !defined(NO_RSA)
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CallbackRsaSignRawDigest rsaSignRawDigestCb;
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#endif
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/* !! NEW DATA MEMBERS MUST BE ADDED AT END !! */
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};
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WOLFSSL_API PKCS7* wc_PKCS7_New(void* heap, int devId);
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WOLFSSL_API int wc_PKCS7_Init(PKCS7* pkcs7, void* heap, int devId);
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WOLFSSL_API int wc_PKCS7_InitWithCert(PKCS7* pkcs7, byte* der, word32 derSz);
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WOLFSSL_API int wc_PKCS7_AddCertificate(PKCS7* pkcs7, byte* der, word32 derSz);
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WOLFSSL_API void wc_PKCS7_Free(PKCS7* pkcs7);
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WOLFSSL_API int wc_PKCS7_GetAttributeValue(PKCS7* pkcs7, const byte* oid,
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word32 oidSz, byte* out, word32* outSz);
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WOLFSSL_API int wc_PKCS7_SetSignerIdentifierType(PKCS7* pkcs7, int type);
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WOLFSSL_API int wc_PKCS7_SetContentType(PKCS7* pkcs7, byte* contentType,
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word32 sz);
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WOLFSSL_API int wc_PKCS7_GetPadSize(word32 inputSz, word32 blockSz);
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WOLFSSL_API int wc_PKCS7_PadData(byte* in, word32 inSz, byte* out, word32 outSz,
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word32 blockSz);
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/* CMS/PKCS#7 Data */
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WOLFSSL_API int wc_PKCS7_EncodeData(PKCS7* pkcs7, byte* output,
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word32 outputSz);
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/* CMS/PKCS#7 SignedData */
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WOLFSSL_API int wc_PKCS7_SetDetached(PKCS7* pkcs7, word16 flag);
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WOLFSSL_API int wc_PKCS7_NoDefaultSignedAttribs(PKCS7* pkcs7);
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WOLFSSL_API int wc_PKCS7_EncodeSignedData(PKCS7* pkcs7,
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byte* output, word32 outputSz);
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WOLFSSL_API int wc_PKCS7_EncodeSignedData_ex(PKCS7* pkcs7, const byte* hashBuf,
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word32 hashSz, byte* outputHead,
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word32* outputHeadSz,
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byte* outputFoot,
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word32* outputFootSz);
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WOLFSSL_API void wc_PKCS7_AllowDegenerate(PKCS7* pkcs7, word16 flag);
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WOLFSSL_API int wc_PKCS7_VerifySignedData(PKCS7* pkcs7,
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byte* pkiMsg, word32 pkiMsgSz);
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WOLFSSL_API int wc_PKCS7_VerifySignedData_ex(PKCS7* pkcs7, const byte* hashBuf,
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word32 hashSz, byte* pkiMsgHead,
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word32 pkiMsgHeadSz, byte* pkiMsgFoot,
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word32 pkiMsgFootSz);
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WOLFSSL_API int wc_PKCS7_GetSignerSID(PKCS7* pkcs7, byte* out, word32* outSz);
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/* CMS single-shot API for Signed FirmwarePkgData */
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WOLFSSL_API int wc_PKCS7_EncodeSignedFPD(PKCS7* pkcs7, byte* privateKey,
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word32 privateKeySz, int signOID,
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int hashOID, byte* content,
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word32 contentSz,
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PKCS7Attrib* signedAttribs,
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word32 signedAttribsSz, byte* output,
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word32 outputSz);
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#ifndef NO_PKCS7_ENCRYPTED_DATA
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/* CMS single-shot API for Signed Encrypted FirmwarePkgData */
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WOLFSSL_API int wc_PKCS7_EncodeSignedEncryptedFPD(PKCS7* pkcs7,
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byte* encryptKey, word32 encryptKeySz,
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byte* privateKey, word32 privateKeySz,
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int encryptOID, int signOID,
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int hashOID, byte* content,
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word32 contentSz,
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PKCS7Attrib* unprotectedAttribs,
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word32 unprotectedAttribsSz,
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PKCS7Attrib* signedAttribs,
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word32 signedAttribsSz,
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byte* output, word32 outputSz);
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#endif /* NO_PKCS7_ENCRYPTED_DATA */
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#if defined(HAVE_LIBZ) && !defined(NO_PKCS7_COMPRESSED_DATA)
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/* CMS single-shot API for Signed Compressed FirmwarePkgData */
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WOLFSSL_API int wc_PKCS7_EncodeSignedCompressedFPD(PKCS7* pkcs7,
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byte* privateKey, word32 privateKeySz,
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int signOID, int hashOID,
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byte* content, word32 contentSz,
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PKCS7Attrib* signedAttribs,
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word32 signedAttribsSz, byte* output,
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word32 outputSz);
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#ifndef NO_PKCS7_ENCRYPTED_DATA
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/* CMS single-shot API for Signed Encrypted Compressed FirmwarePkgData */
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WOLFSSL_API int wc_PKCS7_EncodeSignedEncryptedCompressedFPD(PKCS7* pkcs7,
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byte* encryptKey, word32 encryptKeySz,
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byte* privateKey, word32 privateKeySz,
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int encryptOID, int signOID,
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int hashOID, byte* content,
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word32 contentSz,
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PKCS7Attrib* unprotectedAttribs,
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word32 unprotectedAttribsSz,
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PKCS7Attrib* signedAttribs,
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word32 signedAttribsSz,
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byte* output, word32 outputSz);
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#endif /* !NO_PKCS7_ENCRYPTED_DATA */
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#endif /* HAVE_LIBZ && !NO_PKCS7_COMPRESSED_DATA */
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/* EnvelopedData and AuthEnvelopedData RecipientInfo functions */
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WOLFSSL_API int wc_PKCS7_AddRecipient_KTRI(PKCS7* pkcs7, const byte* cert,
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word32 certSz, int options);
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WOLFSSL_API int wc_PKCS7_AddRecipient_KARI(PKCS7* pkcs7, const byte* cert,
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word32 certSz, int keyWrapOID,
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int keyAgreeOID, byte* ukm,
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word32 ukmSz, int options);
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WOLFSSL_API int wc_PKCS7_SetKey(PKCS7* pkcs7, byte* key, word32 keySz);
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WOLFSSL_API int wc_PKCS7_AddRecipient_KEKRI(PKCS7* pkcs7, int keyWrapOID,
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byte* kek, word32 kekSz,
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byte* keyID, word32 keyIdSz,
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void* timePtr, byte* otherOID,
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word32 otherOIDSz, byte* other,
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word32 otherSz, int options);
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WOLFSSL_API int wc_PKCS7_SetPassword(PKCS7* pkcs7, byte* passwd, word32 pLen);
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WOLFSSL_API int wc_PKCS7_AddRecipient_PWRI(PKCS7* pkcs7, byte* passwd,
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word32 pLen, byte* salt,
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word32 saltSz, int kdfOID,
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int prfOID, int iterations,
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int kekEncryptOID, int options);
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WOLFSSL_API int wc_PKCS7_SetOriEncryptCtx(PKCS7* pkcs7, void* ctx);
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WOLFSSL_API int wc_PKCS7_SetOriDecryptCtx(PKCS7* pkcs7, void* ctx);
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WOLFSSL_API int wc_PKCS7_SetOriDecryptCb(PKCS7* pkcs7, CallbackOriDecrypt cb);
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WOLFSSL_API int wc_PKCS7_AddRecipient_ORI(PKCS7* pkcs7, CallbackOriEncrypt cb,
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int options);
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WOLFSSL_API int wc_PKCS7_SetWrapCEKCb(PKCS7* pkcs7,
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CallbackWrapCEK wrapCEKCb);
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#if defined(HAVE_PKCS7_RSA_RAW_SIGN_CALLBACK) && !defined(NO_RSA)
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WOLFSSL_API int wc_PKCS7_SetRsaSignRawDigestCb(PKCS7* pkcs7,
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CallbackRsaSignRawDigest cb);
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#endif
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/* CMS/PKCS#7 EnvelopedData */
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WOLFSSL_API int wc_PKCS7_EncodeEnvelopedData(PKCS7* pkcs7,
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byte* output, word32 outputSz);
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WOLFSSL_API int wc_PKCS7_DecodeEnvelopedData(PKCS7* pkcs7, byte* pkiMsg,
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word32 pkiMsgSz, byte* output,
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word32 outputSz);
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/* CMS/PKCS#7 AuthEnvelopedData */
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WOLFSSL_API int wc_PKCS7_EncodeAuthEnvelopedData(PKCS7* pkcs7,
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byte* output, word32 outputSz);
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WOLFSSL_API int wc_PKCS7_DecodeAuthEnvelopedData(PKCS7* pkcs7, byte* pkiMsg,
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word32 pkiMsgSz, byte* output,
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word32 outputSz);
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/* CMS/PKCS#7 EncryptedData */
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#ifndef NO_PKCS7_ENCRYPTED_DATA
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WOLFSSL_API int wc_PKCS7_EncodeEncryptedData(PKCS7* pkcs7,
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byte* output, word32 outputSz);
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WOLFSSL_API int wc_PKCS7_DecodeEncryptedData(PKCS7* pkcs7, byte* pkiMsg,
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word32 pkiMsgSz, byte* output,
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word32 outputSz);
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WOLFSSL_API int wc_PKCS7_SetDecodeEncryptedCb(PKCS7* pkcs7,
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CallbackDecryptContent decryptionCb);
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WOLFSSL_API int wc_PKCS7_SetDecodeEncryptedCtx(PKCS7* pkcs7, void* ctx);
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#endif /* NO_PKCS7_ENCRYPTED_DATA */
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/* CMS/PKCS#7 CompressedData */
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#if defined(HAVE_LIBZ) && !defined(NO_PKCS7_COMPRESSED_DATA)
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WOLFSSL_API int wc_PKCS7_EncodeCompressedData(PKCS7* pkcs7, byte* output,
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word32 outputSz);
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WOLFSSL_API int wc_PKCS7_DecodeCompressedData(PKCS7* pkcs7, byte* pkiMsg,
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word32 pkiMsgSz, byte* output,
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word32 outputSz);
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#endif /* HAVE_LIBZ && !NO_PKCS7_COMPRESSED_DATA */
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /* HAVE_PKCS7 */
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#endif /* WOLF_CRYPT_PKCS7_H */
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