| 1 | /*
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| 2 | * {- join("\n * ", @autowarntext) -}
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| 3 | *
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| 4 | * Copyright 1995-2023 The OpenSSL Project Authors. All Rights Reserved.
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| 5 | *
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| 6 | * Licensed under the Apache License 2.0 (the "License"). You may not use
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| 7 | * this file except in compliance with the License. You can obtain a copy
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| 8 | * in the file LICENSE in the source distribution or at
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| 9 | * https://www.openssl.org/source/license.html
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| 10 | */
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| 11 |
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| 12 | {-
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| 13 | use OpenSSL::stackhash qw(generate_stack_macros);
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| 14 | -}
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| 15 |
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| 16 | #ifndef OPENSSL_PKCS7_H
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| 17 | # define OPENSSL_PKCS7_H
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| 18 | # pragma once
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| 19 |
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| 20 | # include <openssl/macros.h>
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| 21 | # ifndef OPENSSL_NO_DEPRECATED_3_0
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| 22 | # define HEADER_PKCS7_H
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| 23 | # endif
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| 24 |
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| 25 | # include <openssl/asn1.h>
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| 26 | # include <openssl/bio.h>
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| 27 | # include <openssl/e_os2.h>
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| 28 |
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| 29 | # include <openssl/symhacks.h>
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| 30 | # include <openssl/types.h>
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| 31 | # include <openssl/pkcs7err.h>
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| 32 | # ifndef OPENSSL_NO_STDIO
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| 33 | # include <stdio.h>
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| 34 | # endif
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| 35 |
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| 36 | #ifdef __cplusplus
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| 37 | extern "C" {
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| 38 | #endif
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| 39 |
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| 40 |
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| 41 | /*-
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| 42 | Encryption_ID DES-CBC
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| 43 | Digest_ID MD5
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| 44 | Digest_Encryption_ID rsaEncryption
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| 45 | Key_Encryption_ID rsaEncryption
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| 46 | */
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| 47 |
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| 48 | typedef struct PKCS7_CTX_st {
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| 49 | OSSL_LIB_CTX *libctx;
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| 50 | char *propq;
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| 51 | } PKCS7_CTX;
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| 52 |
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| 53 | typedef struct pkcs7_issuer_and_serial_st {
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| 54 | X509_NAME *issuer;
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| 55 | ASN1_INTEGER *serial;
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| 56 | } PKCS7_ISSUER_AND_SERIAL;
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| 57 |
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| 58 | typedef struct pkcs7_signer_info_st {
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| 59 | ASN1_INTEGER *version; /* version 1 */
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| 60 | PKCS7_ISSUER_AND_SERIAL *issuer_and_serial;
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| 61 | X509_ALGOR *digest_alg;
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| 62 | STACK_OF(X509_ATTRIBUTE) *auth_attr; /* [ 0 ] */
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| 63 | X509_ALGOR *digest_enc_alg; /* confusing name, actually used for signing */
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| 64 | ASN1_OCTET_STRING *enc_digest; /* confusing name, actually signature */
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| 65 | STACK_OF(X509_ATTRIBUTE) *unauth_attr; /* [ 1 ] */
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| 66 | /* The private key to sign with */
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| 67 | EVP_PKEY *pkey;
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| 68 | const PKCS7_CTX *ctx;
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| 69 | } PKCS7_SIGNER_INFO;
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| 70 | {-
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| 71 | generate_stack_macros("PKCS7_SIGNER_INFO");
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| 72 | -}
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| 73 |
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| 74 | typedef struct pkcs7_recip_info_st {
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| 75 | ASN1_INTEGER *version; /* version 0 */
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| 76 | PKCS7_ISSUER_AND_SERIAL *issuer_and_serial;
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| 77 | X509_ALGOR *key_enc_algor;
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| 78 | ASN1_OCTET_STRING *enc_key;
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| 79 | X509 *cert; /* get the pub-key from this */
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| 80 | const PKCS7_CTX *ctx;
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| 81 | } PKCS7_RECIP_INFO;
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| 82 | {-
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| 83 | generate_stack_macros("PKCS7_RECIP_INFO");
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| 84 | -}
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| 85 |
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| 86 |
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| 87 | typedef struct pkcs7_signed_st {
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| 88 | ASN1_INTEGER *version; /* version 1 */
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| 89 | STACK_OF(X509_ALGOR) *md_algs; /* md used */
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| 90 | STACK_OF(X509) *cert; /* [ 0 ] */
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| 91 | STACK_OF(X509_CRL) *crl; /* [ 1 ] */
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| 92 | STACK_OF(PKCS7_SIGNER_INFO) *signer_info;
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| 93 | struct pkcs7_st *contents;
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| 94 | } PKCS7_SIGNED;
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| 95 | /*
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| 96 | * The above structure is very very similar to PKCS7_SIGN_ENVELOPE. How about
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| 97 | * merging the two
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| 98 | */
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| 99 |
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| 100 | typedef struct pkcs7_enc_content_st {
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| 101 | ASN1_OBJECT *content_type;
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| 102 | X509_ALGOR *algorithm;
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| 103 | ASN1_OCTET_STRING *enc_data; /* [ 0 ] */
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| 104 | const EVP_CIPHER *cipher;
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| 105 | const PKCS7_CTX *ctx;
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| 106 | } PKCS7_ENC_CONTENT;
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| 107 |
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| 108 | typedef struct pkcs7_enveloped_st {
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| 109 | ASN1_INTEGER *version; /* version 0 */
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| 110 | STACK_OF(PKCS7_RECIP_INFO) *recipientinfo;
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| 111 | PKCS7_ENC_CONTENT *enc_data;
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| 112 | } PKCS7_ENVELOPE;
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| 113 |
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| 114 | typedef struct pkcs7_signedandenveloped_st {
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| 115 | ASN1_INTEGER *version; /* version 1 */
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| 116 | STACK_OF(X509_ALGOR) *md_algs; /* md used */
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| 117 | STACK_OF(X509) *cert; /* [ 0 ] */
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| 118 | STACK_OF(X509_CRL) *crl; /* [ 1 ] */
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| 119 | STACK_OF(PKCS7_SIGNER_INFO) *signer_info;
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| 120 | PKCS7_ENC_CONTENT *enc_data;
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| 121 | STACK_OF(PKCS7_RECIP_INFO) *recipientinfo;
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| 122 | } PKCS7_SIGN_ENVELOPE;
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| 123 |
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| 124 | typedef struct pkcs7_digest_st {
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| 125 | ASN1_INTEGER *version; /* version 0 */
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| 126 | X509_ALGOR *md; /* md used */
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| 127 | struct pkcs7_st *contents;
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| 128 | ASN1_OCTET_STRING *digest;
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| 129 | } PKCS7_DIGEST;
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| 130 |
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| 131 | typedef struct pkcs7_encrypted_st {
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| 132 | ASN1_INTEGER *version; /* version 0 */
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| 133 | PKCS7_ENC_CONTENT *enc_data;
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| 134 | } PKCS7_ENCRYPT;
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| 135 |
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| 136 | typedef struct pkcs7_st {
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| 137 | /*
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| 138 | * The following is non NULL if it contains ASN1 encoding of this
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| 139 | * structure
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| 140 | */
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| 141 | unsigned char *asn1;
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| 142 | long length;
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| 143 | # define PKCS7_S_HEADER 0
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| 144 | # define PKCS7_S_BODY 1
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| 145 | # define PKCS7_S_TAIL 2
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| 146 | int state; /* used during processing */
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| 147 | int detached;
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| 148 | ASN1_OBJECT *type;
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| 149 | /* content as defined by the type */
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| 150 | /*
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| 151 | * all encryption/message digests are applied to the 'contents', leaving
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| 152 | * out the 'type' field.
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| 153 | */
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| 154 | union {
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| 155 | char *ptr;
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| 156 | /* NID_pkcs7_data */
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| 157 | ASN1_OCTET_STRING *data;
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| 158 | /* NID_pkcs7_signed */
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| 159 | PKCS7_SIGNED *sign;
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| 160 | /* NID_pkcs7_enveloped */
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| 161 | PKCS7_ENVELOPE *enveloped;
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| 162 | /* NID_pkcs7_signedAndEnveloped */
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| 163 | PKCS7_SIGN_ENVELOPE *signed_and_enveloped;
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| 164 | /* NID_pkcs7_digest */
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| 165 | PKCS7_DIGEST *digest;
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| 166 | /* NID_pkcs7_encrypted */
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| 167 | PKCS7_ENCRYPT *encrypted;
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| 168 | /* Anything else */
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| 169 | ASN1_TYPE *other;
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| 170 | } d;
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| 171 | PKCS7_CTX ctx;
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| 172 | } PKCS7;
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| 173 | {-
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| 174 | generate_stack_macros("PKCS7");
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| 175 | -}
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| 176 |
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| 177 |
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| 178 | # define PKCS7_OP_SET_DETACHED_SIGNATURE 1
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| 179 | # define PKCS7_OP_GET_DETACHED_SIGNATURE 2
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| 180 |
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| 181 | # define PKCS7_get_signed_attributes(si) ((si)->auth_attr)
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| 182 | # define PKCS7_get_attributes(si) ((si)->unauth_attr)
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| 183 |
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| 184 | # define PKCS7_type_is_signed(a) (OBJ_obj2nid((a)->type) == NID_pkcs7_signed)
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| 185 | # define PKCS7_type_is_encrypted(a) (OBJ_obj2nid((a)->type) == NID_pkcs7_encrypted)
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| 186 | # define PKCS7_type_is_enveloped(a) (OBJ_obj2nid((a)->type) == NID_pkcs7_enveloped)
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| 187 | # define PKCS7_type_is_signedAndEnveloped(a) \
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| 188 | (OBJ_obj2nid((a)->type) == NID_pkcs7_signedAndEnveloped)
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| 189 | # define PKCS7_type_is_data(a) (OBJ_obj2nid((a)->type) == NID_pkcs7_data)
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| 190 | # define PKCS7_type_is_digest(a) (OBJ_obj2nid((a)->type) == NID_pkcs7_digest)
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| 191 |
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| 192 | # define PKCS7_set_detached(p,v) \
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| 193 | PKCS7_ctrl(p,PKCS7_OP_SET_DETACHED_SIGNATURE,v,NULL)
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| 194 | # define PKCS7_get_detached(p) \
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| 195 | PKCS7_ctrl(p,PKCS7_OP_GET_DETACHED_SIGNATURE,0,NULL)
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| 196 |
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| 197 | # define PKCS7_is_detached(p7) (PKCS7_type_is_signed(p7) && PKCS7_get_detached(p7))
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| 198 |
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| 199 | /* S/MIME related flags */
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| 200 |
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| 201 | # define PKCS7_TEXT 0x1
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| 202 | # define PKCS7_NOCERTS 0x2
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| 203 | # define PKCS7_NOSIGS 0x4
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| 204 | # define PKCS7_NOCHAIN 0x8
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| 205 | # define PKCS7_NOINTERN 0x10
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| 206 | # define PKCS7_NOVERIFY 0x20
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| 207 | # define PKCS7_DETACHED 0x40
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| 208 | # define PKCS7_BINARY 0x80
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| 209 | # define PKCS7_NOATTR 0x100
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| 210 | # define PKCS7_NOSMIMECAP 0x200
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| 211 | # define PKCS7_NOOLDMIMETYPE 0x400
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| 212 | # define PKCS7_CRLFEOL 0x800
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| 213 | # define PKCS7_STREAM 0x1000
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| 214 | # define PKCS7_NOCRL 0x2000
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| 215 | # define PKCS7_PARTIAL 0x4000
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| 216 | # define PKCS7_REUSE_DIGEST 0x8000
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| 217 | # define PKCS7_NO_DUAL_CONTENT 0x10000
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| 218 |
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| 219 | /* Flags: for compatibility with older code */
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| 220 |
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| 221 | # define SMIME_TEXT PKCS7_TEXT
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| 222 | # define SMIME_NOCERTS PKCS7_NOCERTS
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| 223 | # define SMIME_NOSIGS PKCS7_NOSIGS
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| 224 | # define SMIME_NOCHAIN PKCS7_NOCHAIN
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| 225 | # define SMIME_NOINTERN PKCS7_NOINTERN
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| 226 | # define SMIME_NOVERIFY PKCS7_NOVERIFY
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| 227 | # define SMIME_DETACHED PKCS7_DETACHED
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| 228 | # define SMIME_BINARY PKCS7_BINARY
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| 229 | # define SMIME_NOATTR PKCS7_NOATTR
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| 230 |
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| 231 | /* CRLF ASCII canonicalisation */
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| 232 | # define SMIME_ASCIICRLF 0x80000
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| 233 |
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| 234 | DECLARE_ASN1_FUNCTIONS(PKCS7_ISSUER_AND_SERIAL)
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| 235 |
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| 236 | int PKCS7_ISSUER_AND_SERIAL_digest(PKCS7_ISSUER_AND_SERIAL *data,
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| 237 | const EVP_MD *type, unsigned char *md,
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| 238 | unsigned int *len);
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| 239 | # ifndef OPENSSL_NO_STDIO
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| 240 | PKCS7 *d2i_PKCS7_fp(FILE *fp, PKCS7 **p7);
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| 241 | int i2d_PKCS7_fp(FILE *fp, const PKCS7 *p7);
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| 242 | # endif
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| 243 | DECLARE_ASN1_DUP_FUNCTION(PKCS7)
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| 244 | PKCS7 *d2i_PKCS7_bio(BIO *bp, PKCS7 **p7);
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| 245 | int i2d_PKCS7_bio(BIO *bp, const PKCS7 *p7);
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| 246 | int i2d_PKCS7_bio_stream(BIO *out, PKCS7 *p7, BIO *in, int flags);
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| 247 | int PEM_write_bio_PKCS7_stream(BIO *out, PKCS7 *p7, BIO *in, int flags);
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| 248 |
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| 249 | DECLARE_ASN1_FUNCTIONS(PKCS7_SIGNER_INFO)
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| 250 | DECLARE_ASN1_FUNCTIONS(PKCS7_RECIP_INFO)
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| 251 | DECLARE_ASN1_FUNCTIONS(PKCS7_SIGNED)
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| 252 | DECLARE_ASN1_FUNCTIONS(PKCS7_ENC_CONTENT)
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| 253 | DECLARE_ASN1_FUNCTIONS(PKCS7_ENVELOPE)
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| 254 | DECLARE_ASN1_FUNCTIONS(PKCS7_SIGN_ENVELOPE)
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| 255 | DECLARE_ASN1_FUNCTIONS(PKCS7_DIGEST)
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| 256 | DECLARE_ASN1_FUNCTIONS(PKCS7_ENCRYPT)
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| 257 | DECLARE_ASN1_FUNCTIONS(PKCS7)
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| 258 | PKCS7 *PKCS7_new_ex(OSSL_LIB_CTX *libctx, const char *propq);
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| 259 |
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| 260 | DECLARE_ASN1_ITEM(PKCS7_ATTR_SIGN)
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| 261 | DECLARE_ASN1_ITEM(PKCS7_ATTR_VERIFY)
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| 262 |
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| 263 | DECLARE_ASN1_NDEF_FUNCTION(PKCS7)
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| 264 | DECLARE_ASN1_PRINT_FUNCTION(PKCS7)
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| 265 |
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| 266 | long PKCS7_ctrl(PKCS7 *p7, int cmd, long larg, char *parg);
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| 267 |
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| 268 | int PKCS7_type_is_other(PKCS7 *p7);
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| 269 | int PKCS7_set_type(PKCS7 *p7, int type);
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| 270 | int PKCS7_set0_type_other(PKCS7 *p7, int type, ASN1_TYPE *other);
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| 271 | int PKCS7_set_content(PKCS7 *p7, PKCS7 *p7_data);
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| 272 | int PKCS7_SIGNER_INFO_set(PKCS7_SIGNER_INFO *p7i, X509 *x509, EVP_PKEY *pkey,
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| 273 | const EVP_MD *dgst);
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| 274 | int PKCS7_SIGNER_INFO_sign(PKCS7_SIGNER_INFO *si);
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| 275 | int PKCS7_add_signer(PKCS7 *p7, PKCS7_SIGNER_INFO *p7i);
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| 276 | int PKCS7_add_certificate(PKCS7 *p7, X509 *x509);
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| 277 | int PKCS7_add_crl(PKCS7 *p7, X509_CRL *x509);
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| 278 | int PKCS7_content_new(PKCS7 *p7, int nid);
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| 279 | int PKCS7_dataVerify(X509_STORE *cert_store, X509_STORE_CTX *ctx,
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| 280 | BIO *bio, PKCS7 *p7, PKCS7_SIGNER_INFO *si);
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| 281 | int PKCS7_signatureVerify(BIO *bio, PKCS7 *p7, PKCS7_SIGNER_INFO *si,
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| 282 | X509 *x509);
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| 283 |
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| 284 | BIO *PKCS7_dataInit(PKCS7 *p7, BIO *bio);
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| 285 | int PKCS7_dataFinal(PKCS7 *p7, BIO *bio);
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| 286 | BIO *PKCS7_dataDecode(PKCS7 *p7, EVP_PKEY *pkey, BIO *in_bio, X509 *pcert);
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| 287 |
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| 288 | PKCS7_SIGNER_INFO *PKCS7_add_signature(PKCS7 *p7, X509 *x509,
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| 289 | EVP_PKEY *pkey, const EVP_MD *dgst);
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| 290 | X509 *PKCS7_cert_from_signer_info(PKCS7 *p7, PKCS7_SIGNER_INFO *si);
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| 291 | int PKCS7_set_digest(PKCS7 *p7, const EVP_MD *md);
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| 292 | STACK_OF(PKCS7_SIGNER_INFO) *PKCS7_get_signer_info(PKCS7 *p7);
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| 293 |
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| 294 | PKCS7_RECIP_INFO *PKCS7_add_recipient(PKCS7 *p7, X509 *x509);
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| 295 | void PKCS7_SIGNER_INFO_get0_algs(PKCS7_SIGNER_INFO *si, EVP_PKEY **pk,
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| 296 | X509_ALGOR **pdig, X509_ALGOR **psig);
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| 297 | void PKCS7_RECIP_INFO_get0_alg(PKCS7_RECIP_INFO *ri, X509_ALGOR **penc);
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| 298 | int PKCS7_add_recipient_info(PKCS7 *p7, PKCS7_RECIP_INFO *ri);
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| 299 | int PKCS7_RECIP_INFO_set(PKCS7_RECIP_INFO *p7i, X509 *x509);
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| 300 | int PKCS7_set_cipher(PKCS7 *p7, const EVP_CIPHER *cipher);
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| 301 | int PKCS7_stream(unsigned char ***boundary, PKCS7 *p7);
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| 302 |
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| 303 | PKCS7_ISSUER_AND_SERIAL *PKCS7_get_issuer_and_serial(PKCS7 *p7, int idx);
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| 304 | ASN1_OCTET_STRING *PKCS7_get_octet_string(PKCS7 *p7);
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| 305 | ASN1_OCTET_STRING *PKCS7_digest_from_attributes(STACK_OF(X509_ATTRIBUTE) *sk);
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| 306 | int PKCS7_add_signed_attribute(PKCS7_SIGNER_INFO *p7si, int nid, int type,
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| 307 | void *data);
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| 308 | int PKCS7_add_attribute(PKCS7_SIGNER_INFO *p7si, int nid, int atrtype,
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| 309 | void *value);
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| 310 | ASN1_TYPE *PKCS7_get_attribute(const PKCS7_SIGNER_INFO *si, int nid);
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| 311 | ASN1_TYPE *PKCS7_get_signed_attribute(const PKCS7_SIGNER_INFO *si, int nid);
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| 312 | int PKCS7_set_signed_attributes(PKCS7_SIGNER_INFO *p7si,
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| 313 | STACK_OF(X509_ATTRIBUTE) *sk);
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| 314 | int PKCS7_set_attributes(PKCS7_SIGNER_INFO *p7si,
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| 315 | STACK_OF(X509_ATTRIBUTE) *sk);
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| 316 |
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| 317 | PKCS7 *PKCS7_sign(X509 *signcert, EVP_PKEY *pkey, STACK_OF(X509) *certs,
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| 318 | BIO *data, int flags);
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| 319 | PKCS7 *PKCS7_sign_ex(X509 *signcert, EVP_PKEY *pkey, STACK_OF(X509) *certs,
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| 320 | BIO *data, int flags, OSSL_LIB_CTX *libctx,
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| 321 | const char *propq);
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| 322 |
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| 323 | PKCS7_SIGNER_INFO *PKCS7_sign_add_signer(PKCS7 *p7,
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| 324 | X509 *signcert, EVP_PKEY *pkey,
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| 325 | const EVP_MD *md, int flags);
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| 326 |
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| 327 | int PKCS7_final(PKCS7 *p7, BIO *data, int flags);
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| 328 | int PKCS7_verify(PKCS7 *p7, STACK_OF(X509) *certs, X509_STORE *store,
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| 329 | BIO *indata, BIO *out, int flags);
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| 330 | STACK_OF(X509) *PKCS7_get0_signers(PKCS7 *p7, STACK_OF(X509) *certs,
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| 331 | int flags);
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| 332 | PKCS7 *PKCS7_encrypt(STACK_OF(X509) *certs, BIO *in, const EVP_CIPHER *cipher,
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| 333 | int flags);
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| 334 | PKCS7 *PKCS7_encrypt_ex(STACK_OF(X509) *certs, BIO *in,
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| 335 | const EVP_CIPHER *cipher, int flags,
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| 336 | OSSL_LIB_CTX *libctx, const char *propq);
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| 337 | int PKCS7_decrypt(PKCS7 *p7, EVP_PKEY *pkey, X509 *cert, BIO *data,
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| 338 | int flags);
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| 339 |
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| 340 | int PKCS7_add_attrib_smimecap(PKCS7_SIGNER_INFO *si,
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| 341 | STACK_OF(X509_ALGOR) *cap);
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| 342 | STACK_OF(X509_ALGOR) *PKCS7_get_smimecap(PKCS7_SIGNER_INFO *si);
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| 343 | int PKCS7_simple_smimecap(STACK_OF(X509_ALGOR) *sk, int nid, int arg);
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| 344 |
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| 345 | int PKCS7_add_attrib_content_type(PKCS7_SIGNER_INFO *si, ASN1_OBJECT *coid);
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| 346 | int PKCS7_add0_attrib_signing_time(PKCS7_SIGNER_INFO *si, ASN1_TIME *t);
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| 347 | int PKCS7_add1_attrib_digest(PKCS7_SIGNER_INFO *si,
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| 348 | const unsigned char *md, int mdlen);
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| 349 |
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| 350 | int SMIME_write_PKCS7(BIO *bio, PKCS7 *p7, BIO *data, int flags);
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| 351 | PKCS7 *SMIME_read_PKCS7_ex(BIO *bio, BIO **bcont, PKCS7 **p7);
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| 352 | PKCS7 *SMIME_read_PKCS7(BIO *bio, BIO **bcont);
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| 353 |
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| 354 | BIO *BIO_new_PKCS7(BIO *out, PKCS7 *p7);
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| 355 |
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| 356 | # ifdef __cplusplus
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| 357 | }
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| 358 | # endif
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| 359 | #endif
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