NAME<\/a> crypto \u2212 OpenSSL cryptographic library<\/p>\n See the individual manual pages for details.<\/p>\n The OpenSSL crypto<\/b> library implements a wide range of cryptographic algorithms used in various Internet standards. The services provided by this library are used by the OpenSSL implementations of SSL, TLS<\/small> and S\/MIME, and they have also been used to implement SSH,<\/small> OpenPGP, and other cryptographic standards.<\/p>\n libcrypto<\/b> consists of a number of sub-libraries that implement the individual algorithms.<\/p>\n The functionality includes symmetric encryption, public key cryptography and key agreement, certificate handling, cryptographic hash functions, cryptographic pseudo-random number generator, and various utilities.<\/p>\n Some of the newer functions follow a naming convention using the numbers 0<\/b> and 1<\/b>. For example the functions:<\/p>\n int X509_CRL_add0_revoked(X509_CRL *crl, X509_REVOKED *rev); The 0<\/b> version uses the supplied structure pointer directly in the parent and it will be freed up when the parent is freed. In the above example crl<\/b> would be freed but rev<\/b> would not.<\/p>\n The 1<\/b> function uses a copy of the supplied structure pointer (or in some cases increases its link count) in the parent and so both (x<\/b> and obj<\/b> above) should be freed up.<\/p>\n See the individual manual pages for details.<\/p>\n
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COPYRIGHT<\/a> <\/p>\n
\nNAME <\/a> <\/h2>\n
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int X509_add1_trust_object(X509 *x, const ASN1_OBJECT *obj);<\/p>\nRETURN VALUES <\/a> <\/h2>\n
SEE ALSO <\/a> <\/h2>\n