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Simple HTTP client with HTTP/1.1, HTTP/2, and HTTP/3 support

Security advisory: This version has known vulnerabilities. View advisories
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hackney c_src boringssl crypto pkcs7 internal.h
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c_src/boringssl/crypto/pkcs7/internal.h 

// Copyright 2017 The BoringSSL Authors

//

// Licensed under the Apache License, Version 2.0 (the "License");

// you may not use this file except in compliance with the License.

// You may obtain a copy of the License at

//

//     https://www.apache.org/licenses/LICENSE-2.0

//

// Unless required by applicable law or agreed to in writing, software

// distributed under the License is distributed on an "AS IS" BASIS,

// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

// See the License for the specific language governing permissions and

// limitations under the License.



#ifndef OPENSSL_HEADER_CRYPTO_PKCS7_INTERNAL_H

#define OPENSSL_HEADER_CRYPTO_PKCS7_INTERNAL_H



#include <openssl/base.h>



#if defined(__cplusplus)

extern "C" {

#endif





// pkcs7_parse_header reads the non-certificate/non-CRL prefix of a PKCS#7

// SignedData blob from |cbs| and sets |*out| to point to the rest of the

// input. If the input is in BER format, then |*der_bytes| will be set to a

// pointer that needs to be freed by the caller once they have finished

// processing |*out| (which will be pointing into |*der_bytes|).

//

// It returns one on success or zero on error. On error, |*der_bytes| is

// NULL.

int pkcs7_parse_header(uint8_t **der_bytes, CBS *out, CBS *cbs);



// pkcs7_add_signed_data writes a PKCS#7, SignedData structure to |out|. While

// doing so it makes callbacks to let the caller fill in parts of the structure.

// All callbacks are ignored if NULL and return one on success or zero on error.

//

//   signed_data_version: version number of the SignedData structure. In PKCS#7,

//       it is always 1. In CMS, it depends on the features used.

//   digest_algos_cb: may write AlgorithmIdentifiers into the given CBB, which

//       is a SET of digest algorithms.

//   cert_crl_cb: may write the |certificates| or |crls| fields.

//       (See https://datatracker.ietf.org/doc/html/rfc2315#section-9.1)

//   signer_infos_cb: may write the contents of the |signerInfos| field.

//       (See https://datatracker.ietf.org/doc/html/rfc2315#section-9.1)

//

// pkcs7_add_signed_data returns one on success or zero on error.

int pkcs7_add_signed_data(CBB *out, uint64_t signed_data_version,

                          int (*digest_algos_cb)(CBB *out, void *arg),

                          int (*cert_crl_cb)(CBB *out, void *arg),

                          int (*signer_infos_cb)(CBB *out, void *arg),

                          void *arg);



// pkcs7_add_external_signature writes a PKCS#7 or CMS SignedData structure to

// |out|, containing an external (i.e. the contents are not included) signature,

// using |sign_cert| and |key| to sign the contents of |data| with |md|. If

// |use_key_id| is true (CMS-only), the SignerInfo specifies the signer with key

// identifier. Otherwise, it uses issuer and serial number (PKCS#7 or CMS v1).

// The SignedData will have no embedded certificates and no attributes.

//

// Note: CMS v1 and PKCS#7 v1.5 are not completely compatible, but they overlap

// in all cases implemented by this function.

int pkcs7_add_external_signature(CBB *out, X509 *sign_cert, EVP_PKEY *key,

                                 const EVP_MD *md, BIO *data, bool use_key_id);





#if defined(__cplusplus)

}  // extern C

#endif



#endif  // OPENSSL_HEADER_CRYPTO_PKCS7_INTERNAL_H