flutter / third_party / openssl / 4b1b629725970384d6cf4dafe9e83e54859574cd / . / doc / man3 / RSA_sign_ASN1_OCTET_STRING.pod

=pod | |

=head1 NAME | |

RSA_sign_ASN1_OCTET_STRING, RSA_verify_ASN1_OCTET_STRING - RSA signatures | |

=head1 SYNOPSIS | |

#include <openssl/rsa.h> | |

The following functions have been deprecated since OpenSSL 3.0, and can be | |

hidden entirely by defining B<OPENSSL_API_COMPAT> with a suitable version value, | |

see L<openssl_user_macros(7)>: | |

int RSA_sign_ASN1_OCTET_STRING(int dummy, unsigned char *m, | |

unsigned int m_len, unsigned char *sigret, | |

unsigned int *siglen, RSA *rsa); | |

int RSA_verify_ASN1_OCTET_STRING(int dummy, unsigned char *m, | |

unsigned int m_len, unsigned char *sigbuf, | |

unsigned int siglen, RSA *rsa); | |

=head1 DESCRIPTION | |

All of the functions described on this page are deprecated. | |

Applications should instead use EVP PKEY APIs. | |

RSA_sign_ASN1_OCTET_STRING() signs the octet string B<m> of size | |

B<m_len> using the private key B<rsa> represented in DER using PKCS #1 | |

padding. It stores the signature in B<sigret> and the signature size | |

in B<siglen>. B<sigret> must point to B<RSA_size(rsa)> bytes of | |

memory. | |

B<dummy> is ignored. | |

The random number generator must be seeded when calling | |

RSA_sign_ASN1_OCTET_STRING(). | |

If the automatic seeding or reseeding of the OpenSSL CSPRNG fails due to | |

external circumstances (see L<RAND(7)>), the operation will fail. | |

RSA_verify_ASN1_OCTET_STRING() verifies that the signature B<sigbuf> | |

of size B<siglen> is the DER representation of a given octet string | |

B<m> of size B<m_len>. B<dummy> is ignored. B<rsa> is the signer's | |

public key. | |

=head1 RETURN VALUES | |

RSA_sign_ASN1_OCTET_STRING() returns 1 on success, 0 otherwise. | |

RSA_verify_ASN1_OCTET_STRING() returns 1 on successful verification, 0 | |

otherwise. | |

The error codes can be obtained by L<ERR_get_error(3)>. | |

=head1 BUGS | |

These functions serve no recognizable purpose. | |

=head1 SEE ALSO | |

L<ERR_get_error(3)>, | |

L<RAND_bytes(3)>, L<RSA_sign(3)>, | |

L<RSA_verify(3)>, | |

L<RAND(7)> | |

=head1 HISTORY | |

All of these functions were deprecated in OpenSSL 3.0. | |

=head1 COPYRIGHT | |

Copyright 2000-2020 The OpenSSL Project Authors. All Rights Reserved. | |

Licensed under the Apache License 2.0 (the "License"). You may not use | |

this file except in compliance with the License. You can obtain a copy | |

in the file LICENSE in the source distribution or at | |

L<https://www.openssl.org/source/license.html>. | |

=cut |