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Title "X509_GET0_DISTINGUISHING_ID 3"
X509_GET0_DISTINGUISHING_ID 3 "2023-08-01" "3.0.10" "OpenSSL"
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"NAME"
X509_get0_distinguishing_id, X509_set0_distinguishing_id, X509_REQ_get0_distinguishing_id, X509_REQ_set0_distinguishing_id \- get or set the Distinguishing ID for certificate operations
"SYNOPSIS"
Header "SYNOPSIS" .Vb 1 #include <openssl/x509.h> \& ASN1_OCTET_STRING *X509_get0_distinguishing_id(X509 *x); void X509_set0_distinguishing_id(X509 *x, ASN1_OCTET_STRING *distid); ASN1_OCTET_STRING *X509_REQ_get0_distinguishing_id(X509_REQ *x); void X509_REQ_set0_distinguishing_id(X509_REQ *x, ASN1_OCTET_STRING *distid); .Ve
"DESCRIPTION"
Header "DESCRIPTION" The Distinguishing \s-1ID\s0 is defined in \s-1FIPS 196\s0 as follows:
"Distinguishing identifier" 4
Item "Distinguishing identifier" Information which unambiguously distinguishes an entity in the authentication process.

The \s-1SM2\s0 signature algorithm requires a Distinguishing \s-1ID\s0 value when generating and verifying a signature, but the Ddistinguishing \s-1ID\s0 may also find other uses. In the context of \s-1SM2,\s0 the Distinguishing \s-1ID\s0 is often referred to as the \*(L"\s-1SM2 ID\*(R".\s0

For the purpose off verifying a certificate or a certification request, a Distinguishing \s-1ID\s0 may be attached to it, so functions like X509_verify\|(3) or X509_REQ_verify\|(3) have easy access to that identity for signature verification.

\fBX509_get0_distinguishing_id() gets the Distinguishing \s-1ID\s0 value of a certificate \fBx by returning an \s-1ASN1_OCTET_STRING\s0 object which should not be freed by the caller.

\fBX509_set0_distinguishing_id() assigns distid to the certificate x. Calling this function transfers the memory management of the value to the X509 object, and therefore the value that has been passed in should not be freed by the caller after this function has been called.

\fBX509_REQ_get0_distinguishing_id() and X509_REQ_set0_distinguishing_id() have the same functionality as X509_get0_distinguishing_id() and \fBX509_set0_distinguishing_id() except that they deal with X509_REQ objects instead of X509.

"RETURN VALUES"
Header "RETURN VALUES" \fBX509_set0_distinguishing_id() and X509_REQ_set0_distinguishing_id() do not return a value.
"SEE ALSO"
Header "SEE ALSO" \fBX509_verify\|(3), \s-1SM2\s0\|(7)
"COPYRIGHT"
Header "COPYRIGHT" Copyright 2019-2020 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>.