| 1 | =pod
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| 2 |
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| 3 | =head1 NAME
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| 4 |
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| 5 | X509_digest, X509_CRL_digest,
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| 6 | X509_pubkey_digest,
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| 7 | X509_NAME_digest,
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| 8 | X509_REQ_digest,
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| 9 | PKCS7_ISSUER_AND_SERIAL_digest
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| 10 | - get digest of various objects
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| 11 |
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| 12 | =head1 SYNOPSIS
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| 13 |
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| 14 | #include <openssl/x509.h>
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| 15 |
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| 16 | int X509_digest(const X509 *data, const EVP_MD *type, unsigned char *md,
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| 17 | unsigned int *len);
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| 18 |
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| 19 | int X509_CRL_digest(const X509_CRL *data, const EVP_MD *type, unsigned char *md,
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| 20 | unsigned int *len);
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| 21 |
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| 22 | int X509_pubkey_digest(const X509 *data, const EVP_MD *type,
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| 23 | unsigned char *md, unsigned int *len);
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| 24 |
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| 25 | int X509_REQ_digest(const X509_REQ *data, const EVP_MD *type,
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| 26 | unsigned char *md, unsigned int *len);
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| 27 |
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| 28 | int X509_NAME_digest(const X509_NAME *data, const EVP_MD *type,
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| 29 | unsigned char *md, unsigned int *len);
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| 30 |
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| 31 | #include <openssl/pkcs7.h>
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| 32 |
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| 33 | int PKCS7_ISSUER_AND_SERIAL_digest(PKCS7_ISSUER_AND_SERIAL *data,
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| 34 | const EVP_MD *type, unsigned char *md,
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| 35 | unsigned int *len);
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| 36 |
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| 37 | =head1 DESCRIPTION
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| 38 |
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| 39 | X509_pubkey_digest() returns a digest of the DER representation of the public
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| 40 | key in the specified X509 B<data> object.
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| 41 | All other functions described here return a digest of the DER representation
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| 42 | of their entire B<data> objects.
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| 43 |
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| 44 | The B<type> parameter specifies the digest to
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| 45 | be used, such as EVP_sha1(). The B<md> is a pointer to the buffer where the
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| 46 | digest will be copied and is assumed to be large enough; the constant
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| 47 | B<EVP_MAX_MD_SIZE> is suggested. The B<len> parameter, if not NULL, points
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| 48 | to a place where the digest size will be stored.
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| 49 |
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| 50 | =head1 RETURN VALUES
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| 51 |
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| 52 | All functions described here return 1 for success and 0 for failure.
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| 53 |
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| 54 | =head1 SEE ALSO
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| 55 |
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| 56 | L<EVP_sha1(3)>
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| 57 |
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| 58 | =head1 COPYRIGHT
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| 59 |
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| 60 | Copyright 2017-2018 The OpenSSL Project Authors. All Rights Reserved.
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| 61 |
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| 62 | Licensed under the OpenSSL license (the "License"). You may not use
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| 63 | this file except in compliance with the License. You can obtain a copy
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| 64 | in the file LICENSE in the source distribution or at
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| 65 | L<https://www.openssl.org/source/license.html>.
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| 66 |
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| 67 | =cut
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