| 1 | =pod
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| 2 |
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| 3 | =head1 NAME
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| 4 |
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| 5 | RSA_sign_ASN1_OCTET_STRING, RSA_verify_ASN1_OCTET_STRING - RSA signatures
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| 6 |
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| 7 | =head1 SYNOPSIS
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| 8 |
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| 9 | #include <openssl/rsa.h>
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| 10 |
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| 11 | The following functions have been deprecated since OpenSSL 3.0, and can be
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| 12 | hidden entirely by defining B<OPENSSL_API_COMPAT> with a suitable version value,
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| 13 | see L<openssl_user_macros(7)>:
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| 14 |
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| 15 | int RSA_sign_ASN1_OCTET_STRING(int dummy, unsigned char *m,
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| 16 | unsigned int m_len, unsigned char *sigret,
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| 17 | unsigned int *siglen, RSA *rsa);
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| 18 |
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| 19 | int RSA_verify_ASN1_OCTET_STRING(int dummy, unsigned char *m,
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| 20 | unsigned int m_len, unsigned char *sigbuf,
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| 21 | unsigned int siglen, RSA *rsa);
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| 22 |
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| 23 | =head1 DESCRIPTION
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| 24 |
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| 25 | All of the functions described on this page are deprecated.
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| 26 | Applications should instead use EVP PKEY APIs.
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| 27 |
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| 28 | RSA_sign_ASN1_OCTET_STRING() signs the octet string B<m> of size
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| 29 | B<m_len> using the private key B<rsa> represented in DER using PKCS #1
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| 30 | padding. It stores the signature in B<sigret> and the signature size
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| 31 | in B<siglen>. B<sigret> must point to B<RSA_size(rsa)> bytes of
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| 32 | memory.
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| 33 |
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| 34 | B<dummy> is ignored.
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| 35 |
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| 36 | The random number generator must be seeded when calling
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| 37 | RSA_sign_ASN1_OCTET_STRING().
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| 38 | If the automatic seeding or reseeding of the OpenSSL CSPRNG fails due to
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| 39 | external circumstances (see L<RAND(7)>), the operation will fail.
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| 40 |
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| 41 | RSA_verify_ASN1_OCTET_STRING() verifies that the signature B<sigbuf>
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| 42 | of size B<siglen> is the DER representation of a given octet string
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| 43 | B<m> of size B<m_len>. B<dummy> is ignored. B<rsa> is the signer's
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| 44 | public key.
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| 45 |
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| 46 | =head1 RETURN VALUES
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| 47 |
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| 48 | RSA_sign_ASN1_OCTET_STRING() returns 1 on success, 0 otherwise.
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| 49 | RSA_verify_ASN1_OCTET_STRING() returns 1 on successful verification, 0
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| 50 | otherwise.
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| 51 |
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| 52 | The error codes can be obtained by L<ERR_get_error(3)>.
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| 53 |
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| 54 | =head1 BUGS
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| 55 |
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| 56 | These functions serve no recognizable purpose.
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| 57 |
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| 58 | =head1 SEE ALSO
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| 59 |
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| 60 | L<ERR_get_error(3)>,
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| 61 | L<RAND_bytes(3)>, L<RSA_sign(3)>,
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| 62 | L<RSA_verify(3)>,
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| 63 | L<RAND(7)>
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| 64 |
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| 65 | =head1 HISTORY
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| 66 |
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| 67 | All of these functions were deprecated in OpenSSL 3.0.
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| 68 |
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| 69 | =head1 COPYRIGHT
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| 70 |
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| 71 | Copyright 2000-2020 The OpenSSL Project Authors. All Rights Reserved.
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| 72 |
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| 73 | Licensed under the Apache License 2.0 (the "License"). You may not use
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| 74 | this file except in compliance with the License. You can obtain a copy
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| 75 | in the file LICENSE in the source distribution or at
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| 76 | L<https://www.openssl.org/source/license.html>.
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| 77 |
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| 78 | =cut
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