68 lines
2.0 KiB
Plaintext
68 lines
2.0 KiB
Plaintext
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=pod
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=head1 NAME
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X509_digest, X509_CRL_digest,
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X509_pubkey_digest,
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X509_NAME_digest,
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X509_REQ_digest,
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PKCS7_ISSUER_AND_SERIAL_digest
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- get digest of various objects
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=head1 SYNOPSIS
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#include <openssl/x509.h>
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int X509_digest(const X509 *data, const EVP_MD *type, unsigned char *md,
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unsigned int *len);
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int X509_CRL_digest(const X509_CRL *data, const EVP_MD *type, unsigned char *md,
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unsigned int *len);
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int X509_pubkey_digest(const X509 *data, const EVP_MD *type,
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unsigned char *md, unsigned int *len);
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int X509_REQ_digest(const X509_REQ *data, const EVP_MD *type,
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unsigned char *md, unsigned int *len);
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int X509_NAME_digest(const X509_NAME *data, const EVP_MD *type,
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unsigned char *md, unsigned int *len);
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#include <openssl/pkcs7.h>
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int PKCS7_ISSUER_AND_SERIAL_digest(PKCS7_ISSUER_AND_SERIAL *data,
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const EVP_MD *type, unsigned char *md,
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unsigned int *len);
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=head1 DESCRIPTION
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X509_pubkey_digest() returns a digest of the DER representation of the public
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key in the specified X509 B<data> object.
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All other functions described here return a digest of the DER representation
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of their entire B<data> objects.
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The B<type> parameter specifies the digest to
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be used, such as EVP_sha1(). The B<md> is a pointer to the buffer where the
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digest will be copied and is assumed to be large enough; the constant
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B<EVP_MAX_MD_SIZE> is suggested. The B<len> parameter, if not NULL, points
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to a place where the digest size will be stored.
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=head1 RETURN VALUES
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All functions described here return 1 for success and 0 for failure.
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=head1 SEE ALSO
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L<EVP_sha1(3)>
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=head1 COPYRIGHT
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Copyright 2017-2018 The OpenSSL Project Authors. All Rights Reserved.
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Licensed under the OpenSSL license (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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