mirror of https://github.com/openssl/openssl.git
66 lines
2.2 KiB
Plaintext
66 lines
2.2 KiB
Plaintext
=pod
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=head1 NAME
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CMS_EncryptedData_encrypt_with_libctx, CMS_EncryptedData_encrypt
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- Create CMS EncryptedData
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=head1 SYNOPSIS
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#include <openssl/cms.h>
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CMS_ContentInfo *CMS_EncryptedData_encrypt_with_libctx(BIO *in,
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const EVP_CIPHER *cipher, const unsigned char *key, size_t keylen,
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unsigned int flags, OPENSSL_CTX *ctx, const char *propq);
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CMS_ContentInfo *CMS_EncryptedData_encrypt(BIO *in,
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const EVP_CIPHER *cipher, const unsigned char *key, size_t keylen,
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unsigned int flags);
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=head1 DESCRIPTION
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CMS_EncryptedData_encrypt_with_libctx() creates a B<CMS_ContentInfo> structure
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with a type B<NID_pkcs7_encrypted>. I<in> is a BIO containing the data to
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encrypt using I<cipher> and the encryption key I<key> of size I<keylen> bytes.
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The library context I<libctx> and the property query I<propq> are used when
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retrieving algorithms from providers. I<flags> is a set of optional flags.
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The I<flags> field supports the options B<CMS_DETACHED>, B<CMS_STREAM> and
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B<CMS_PARTIAL>. Internally CMS_final() is called unless B<CMS_STREAM> and/or
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B<CMS_PARTIAL> is specified.
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The algorithm passed in the I<cipher> parameter must support ASN1 encoding of
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its parameters.
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The B<CMS_ContentInfo> structure can be freed using L<CMS_ContentInfo_free(3)>.
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CMS_EncryptedData_encrypt() is similar to CMS_EncryptedData_encrypt_with_libctx()
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but uses default values of NULL for the library context I<libctx> and the
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property query I<propq>.
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=head1 RETURN VALUES
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If the allocation fails, CMS_EncryptedData_encrypt_with_libctx() and
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CMS_EncryptedData_encrypt() return NULL and set an error code that can be
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obtained by L<ERR_get_error(3)>. Otherwise they return a pointer to the newly
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allocated structure.
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=head1 SEE ALSO
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L<ERR_get_error(3)>, L<CMS_final(3)>, L<CMS_EncryptedData_decrypt(3)>
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head1 HISTORY
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The CMS_EncryptedData_encrypt_with_libctx() method was added in OpenSSL 3.0.
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=head1 COPYRIGHT
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Copyright 2020 The OpenSSL Project Authors. All Rights Reserved.
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Licensed under the Apache License 2.0 (the "License"). You may not use
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this file except in compliance with the License. You can obtain a copy
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in the file LICENSE in the source distribution or at
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L<https://www.openssl.org/source/license.html>.
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=cut
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