1CMS_DIGEST_CREATE(3ossl)            OpenSSL           CMS_DIGEST_CREATE(3ossl)
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NAME

6       CMS_digest_create_ex, CMS_digest_create - Create CMS DigestedData
7       object
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SYNOPSIS

10        #include <openssl/cms.h>
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12        CMS_ContentInfo *CMS_digest_create_ex(BIO *in, const EVP_MD *md,
13                                              unsigned int flags, OSSL_LIB_CTX *ctx,
14                                              const char *propq);
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16        CMS_ContentInfo *CMS_digest_create(BIO *in, const EVP_MD *md,
17                                           unsigned int flags);
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DESCRIPTION

20       CMS_digest_create_ex() creates a CMS_ContentInfo structure with a type
21       NID_pkcs7_digest. The data supplied via the in BIO is digested using
22       md. The library context libctx and the property query propq are used
23       when retrieving algorithms from providers.  The flags field supports
24       the CMS_DETACHED and CMS_STREAM flags, Internally CMS_final() is called
25       unless CMS_STREAM is specified.
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27       The CMS_ContentInfo structure can be freed using
28       CMS_ContentInfo_free(3).
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30       CMS_digest_create() is similar to CMS_digest_create_ex() but uses
31       default values of NULL for the library context libctx and the property
32       query propq.
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RETURN VALUES

35       If the allocation fails, CMS_digest_create_ex() and CMS_digest_create()
36       return NULL and set an error code that can be obtained by
37       ERR_get_error(3).  Otherwise they return a pointer to the newly
38       allocated structure.
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SEE ALSO

41       ERR_get_error(3), CMS_final(3)>
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HISTORY

44       The CMS_digest_create_ex() method was added in OpenSSL 3.0.
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47       Copyright 2020-2021 The OpenSSL Project Authors. All Rights Reserved.
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49       Licensed under the Apache License 2.0 (the "License").  You may not use
50       this file except in compliance with the License.  You can obtain a copy
51       in the file LICENSE in the source distribution or at
52       <https://www.openssl.org/source/license.html>.
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563.1.1                             2023-08-31          CMS_DIGEST_CREATE(3ossl)
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