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Title "X509_DUP 3" For nroff, turn off justification. Always turn off hyphenation; it makes
way too many mistakes in technical documents.
DECLARE_ASN1_FUNCTIONS, IMPLEMENT_ASN1_FUNCTIONS, ASN1_ITEM, ACCESS_DESCRIPTION_free, ACCESS_DESCRIPTION_new, ADMISSIONS_free, ADMISSIONS_new, ADMISSION_SYNTAX_free, ADMISSION_SYNTAX_new, ASIdOrRange_free, ASIdOrRange_new, ASIdentifierChoice_free, ASIdentifierChoice_new, ASIdentifiers_free, ASIdentifiers_new, ASRange_free, ASRange_new, AUTHORITY_INFO_ACCESS_free, AUTHORITY_INFO_ACCESS_new, AUTHORITY_KEYID_free, AUTHORITY_KEYID_new, BASIC_CONSTRAINTS_free, BASIC_CONSTRAINTS_new, CERTIFICATEPOLICIES_free, CERTIFICATEPOLICIES_new, CMS_ContentInfo_free, CMS_ContentInfo_new, CMS_ContentInfo_new_ex, CMS_ContentInfo_print_ctx, CMS_ReceiptRequest_free, CMS_ReceiptRequest_new, CRL_DIST_POINTS_free, CRL_DIST_POINTS_new, DIRECTORYSTRING_free, DIRECTORYSTRING_new, DISPLAYTEXT_free, DISPLAYTEXT_new, DIST_POINT_NAME_free, DIST_POINT_NAME_new, DIST_POINT_free, DIST_POINT_new, DSAparams_dup, ECPARAMETERS_free, ECPARAMETERS_new, ECPKPARAMETERS_free, ECPKPARAMETERS_new, EDIPARTYNAME_free, EDIPARTYNAME_new, ESS_CERT_ID_dup, ESS_CERT_ID_free, ESS_CERT_ID_new, ESS_CERT_ID_V2_dup, ESS_CERT_ID_V2_free, ESS_CERT_ID_V2_new, ESS_ISSUER_SERIAL_dup, ESS_ISSUER_SERIAL_free, ESS_ISSUER_SERIAL_new, ESS_SIGNING_CERT_dup, ESS_SIGNING_CERT_free, ESS_SIGNING_CERT_it, ESS_SIGNING_CERT_new, ESS_SIGNING_CERT_V2_dup, ESS_SIGNING_CERT_V2_free, ESS_SIGNING_CERT_V2_it, ESS_SIGNING_CERT_V2_new, EXTENDED_KEY_USAGE_free, EXTENDED_KEY_USAGE_new, GENERAL_NAMES_free, GENERAL_NAMES_new, GENERAL_NAME_dup, GENERAL_NAME_free, GENERAL_NAME_new, GENERAL_SUBTREE_free, GENERAL_SUBTREE_new, IPAddressChoice_free, IPAddressChoice_new, IPAddressFamily_free, IPAddressFamily_new, IPAddressOrRange_free, IPAddressOrRange_new, IPAddressRange_free, IPAddressRange_new, ISSUER_SIGN_TOOL_free, ISSUER_SIGN_TOOL_it, ISSUER_SIGN_TOOL_new, ISSUING_DIST_POINT_free, ISSUING_DIST_POINT_it, ISSUING_DIST_POINT_new, NAME_CONSTRAINTS_free, NAME_CONSTRAINTS_new, NAMING_AUTHORITY_free, NAMING_AUTHORITY_new, NETSCAPE_CERT_SEQUENCE_free, NETSCAPE_CERT_SEQUENCE_new, NETSCAPE_SPKAC_free, NETSCAPE_SPKAC_new, NETSCAPE_SPKI_free, NETSCAPE_SPKI_new, NOTICEREF_free, NOTICEREF_new, OCSP_BASICRESP_free, OCSP_BASICRESP_new, OCSP_CERTID_dup, OCSP_CERTID_new, OCSP_CERTSTATUS_free, OCSP_CERTSTATUS_new, OCSP_CRLID_free, OCSP_CRLID_new, OCSP_ONEREQ_free, OCSP_ONEREQ_new, OCSP_REQINFO_free, OCSP_REQINFO_new, OCSP_RESPBYTES_free, OCSP_RESPBYTES_new, OCSP_RESPDATA_free, OCSP_RESPDATA_new, OCSP_RESPID_free, OCSP_RESPID_new, OCSP_RESPONSE_new, OCSP_REVOKEDINFO_free, OCSP_REVOKEDINFO_new, OCSP_SERVICELOC_free, OCSP_SERVICELOC_new, OCSP_SIGNATURE_free, OCSP_SIGNATURE_new, OCSP_SINGLERESP_free, OCSP_SINGLERESP_new, OSSL_CMP_ITAV_dup, OSSL_CMP_ITAV_free, OSSL_CMP_MSG_dup, OSSL_CMP_MSG_it, OSSL_CMP_MSG_free, OSSL_CMP_PKIHEADER_free, OSSL_CMP_PKIHEADER_it, OSSL_CMP_PKIHEADER_new, OSSL_CMP_PKISI_dup, OSSL_CMP_PKISI_free, OSSL_CMP_PKISI_it, OSSL_CMP_PKISI_new, OSSL_CMP_PKISTATUS_it, OSSL_CRMF_CERTID_dup, OSSL_CRMF_CERTID_free, OSSL_CRMF_CERTID_it, OSSL_CRMF_CERTID_new, OSSL_CRMF_CERTTEMPLATE_free, OSSL_CRMF_CERTTEMPLATE_it, OSSL_CRMF_CERTTEMPLATE_new, OSSL_CRMF_ENCRYPTEDVALUE_free, OSSL_CRMF_ENCRYPTEDVALUE_it, OSSL_CRMF_ENCRYPTEDVALUE_new, OSSL_CRMF_MSGS_free, OSSL_CRMF_MSGS_it, OSSL_CRMF_MSGS_new, OSSL_CRMF_MSG_dup, OSSL_CRMF_MSG_free, OSSL_CRMF_MSG_it, OSSL_CRMF_MSG_new, OSSL_CRMF_PBMPARAMETER_free, OSSL_CRMF_PBMPARAMETER_it, OSSL_CRMF_PBMPARAMETER_new, OSSL_CRMF_PKIPUBLICATIONINFO_free, OSSL_CRMF_PKIPUBLICATIONINFO_it, OSSL_CRMF_PKIPUBLICATIONINFO_new, OSSL_CRMF_SINGLEPUBINFO_free, OSSL_CRMF_SINGLEPUBINFO_it, OSSL_CRMF_SINGLEPUBINFO_new, OTHERNAME_free, OTHERNAME_new, PBE2PARAM_free, PBE2PARAM_new, PBEPARAM_free, PBEPARAM_new, PBKDF2PARAM_free, PBKDF2PARAM_new, PKCS12_BAGS_free, PKCS12_BAGS_new, PKCS12_MAC_DATA_free, PKCS12_MAC_DATA_new, PKCS12_SAFEBAG_free, PKCS12_SAFEBAG_new, PKCS12_free, PKCS12_new, PKCS7_DIGEST_free, PKCS7_DIGEST_new, PKCS7_ENCRYPT_free, PKCS7_ENCRYPT_new, PKCS7_ENC_CONTENT_free, PKCS7_ENC_CONTENT_new, PKCS7_ENVELOPE_free, PKCS7_ENVELOPE_new, PKCS7_ISSUER_AND_SERIAL_free, PKCS7_ISSUER_AND_SERIAL_new, PKCS7_RECIP_INFO_free, PKCS7_RECIP_INFO_new, PKCS7_SIGNED_free, PKCS7_SIGNED_new, PKCS7_SIGNER_INFO_free, PKCS7_SIGNER_INFO_new, PKCS7_SIGN_ENVELOPE_free, PKCS7_SIGN_ENVELOPE_new, PKCS7_dup, PKCS7_free, PKCS7_new_ex, PKCS7_new, PKCS7_print_ctx, PKCS8_PRIV_KEY_INFO_free, PKCS8_PRIV_KEY_INFO_new, PKEY_USAGE_PERIOD_free, PKEY_USAGE_PERIOD_new, POLICYINFO_free, POLICYINFO_new, POLICYQUALINFO_free, POLICYQUALINFO_new, POLICY_CONSTRAINTS_free, POLICY_CONSTRAINTS_new, POLICY_MAPPING_free, POLICY_MAPPING_new, PROFESSION_INFOS_free, PROFESSION_INFOS_new, PROFESSION_INFO_free, PROFESSION_INFO_new, PROXY_CERT_INFO_EXTENSION_free, PROXY_CERT_INFO_EXTENSION_new, PROXY_POLICY_free, PROXY_POLICY_new, RSAPrivateKey_dup, RSAPublicKey_dup, RSA_OAEP_PARAMS_free, RSA_OAEP_PARAMS_new, RSA_PSS_PARAMS_free, RSA_PSS_PARAMS_new, RSA_PSS_PARAMS_dup, SCRYPT_PARAMS_free, SCRYPT_PARAMS_new, SXNETID_free, SXNETID_new, SXNET_free, SXNET_new, TLS_FEATURE_free, TLS_FEATURE_new, TS_ACCURACY_dup, TS_ACCURACY_free, TS_ACCURACY_new, TS_MSG_IMPRINT_dup, TS_MSG_IMPRINT_free, TS_MSG_IMPRINT_new, TS_REQ_dup, TS_REQ_free, TS_REQ_new, TS_RESP_dup, TS_RESP_free, TS_RESP_new, TS_STATUS_INFO_dup, TS_STATUS_INFO_free, TS_STATUS_INFO_new, TS_TST_INFO_dup, TS_TST_INFO_free, TS_TST_INFO_new, USERNOTICE_free, USERNOTICE_new, X509_ALGOR_free, X509_ALGOR_it, X509_ALGOR_new, X509_ATTRIBUTE_dup, X509_ATTRIBUTE_free, X509_ATTRIBUTE_new, X509_CERT_AUX_free, X509_CERT_AUX_new, X509_CINF_free, X509_CINF_new, X509_CRL_INFO_free, X509_CRL_INFO_new, X509_CRL_dup, X509_CRL_free, X509_CRL_new_ex, X509_CRL_new, X509_EXTENSION_dup, X509_EXTENSION_free, X509_EXTENSION_new, X509_NAME_ENTRY_dup, X509_NAME_ENTRY_free, X509_NAME_ENTRY_new, X509_NAME_dup, X509_NAME_free, X509_NAME_new, X509_REQ_INFO_free, X509_REQ_INFO_new, X509_REQ_dup, X509_REQ_free, X509_REQ_new, X509_REQ_new_ex, X509_REVOKED_dup, X509_REVOKED_free, X509_REVOKED_new, X509_SIG_free, X509_SIG_new, X509_VAL_free, X509_VAL_new, X509_dup, \- ASN1 object utilities Header "SYNOPSIS" .Vb 1 #include <openssl/asn1t.h> \& DECLARE_ASN1_FUNCTIONS(type) IMPLEMENT_ASN1_FUNCTIONS(stname) \& typedef struct ASN1_ITEM_st ASN1_ITEM; \& extern const ASN1_ITEM TYPE_it; TYPE *TYPE_new(void); TYPE *TYPE_dup(const TYPE *a); void TYPE_free(TYPE *a); int TYPE_print_ctx(BIO *out, TYPE *a, int indent, const ASN1_PCTX *pctx); .Ve

The following functions have been deprecated since OpenSSL 3.0, and can be hidden entirely by defining \s-1OPENSSL_API_COMPAT\s0 with a suitable version value, see openssl_user_macros\|(7):

.Vb 3 DSA *DSAparams_dup(const DSA *dsa); RSA *RSAPrivateKey_dup(const RSA *rsa); RSA *RSAPublicKey_dup(const RSA *rsa); .Ve

Header "DESCRIPTION" In the description below, \f(BI\s-1TYPE\s0 is used as a placeholder for any of the OpenSSL datatypes, such as X509.

The OpenSSL \s-1ASN1\s0 parsing library templates are like a data-driven bytecode interpreter. Every \s-1ASN1\s0 object as a global variable, TYPE_it, that describes the item such as its fields. (On systems which cannot export variables from shared libraries, the global is instead a function which returns a pointer to a static variable.

The macro \s-1DECLARE_ASN1_FUNCTIONS\s0() is typically used in header files to generate the function declarations.

The macro \s-1IMPLEMENT_ASN1_FUNCTIONS\s0() is used once in a source file to generate the function bodies.

\fB\f(BI\s-1TYPE\s0_new() allocates an empty object of the indicated type. The object returned must be released by calling \f(BI\s-1TYPE\s0_free().

\fB\f(BI\s-1TYPE\s0_new_ex() is similar to \f(BI\s-1TYPE\s0_new() but also passes the library context libctx and the property query propq to use when retrieving algorithms from providers. This created object can then be used when loading binary data using d2i_\f(BI\s-1TYPE\s0().

\fB\f(BI\s-1TYPE\s0_dup() copies an existing object, leaving it untouched.

\fB\f(BI\s-1TYPE\s0_free() releases the object and all pointers and sub-objects within it.

\fB\f(BI\s-1TYPE\s0_print_ctx() prints the object a on the specified \s-1BIO\s0 out. Each line will be prefixed with indent spaces. The pctx specifies the printing context and is for internal use; use \s-1NULL\s0 to get the default behavior. If a print function is user-defined, then pass in any pctx down to any nested calls.

Header "RETURN VALUES" \fB\f(BI\s-1TYPE\s0_new(), \f(BI\s-1TYPE\s0_new_ex() and \f(BI\s-1TYPE\s0_dup() return a pointer to the object or \s-1NULL\s0 on failure.

\fB\f(BI\s-1TYPE\s0_print_ctx() returns 1 on success or zero on failure.

Header "HISTORY" The functions X509_REQ_new_ex(), X509_CRL_new_ex(), PKCS7_new_ex() and \fBCMS_ContentInfo_new_ex() were added in OpenSSL 3.0.

The functions DSAparams_dup(), RSAPrivateKey_dup() and RSAPublicKey_dup() were deprecated in 3.0.

Header "COPYRIGHT" Copyright 2016-2023 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the Apache License 2.0 (the \*(L"License\*(R"). You may not use this file except in compliance with the License. You can obtain a copy in the file \s-1LICENSE\s0 in the source distribution or at <https://www.openssl.org/source/license.html>.