[#RSA_get0_crt_params]
= RSA_get0_crt_params
:mrdocs:

Borrow pointers to the RSA CRT parameters d mod (p‐1), d mod (q‐1), and qˆ‐1 mod p (deprecated).

== Synopsis

Declared in `<openssl/rsa.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[deprecated]]
void
RSA_get0_crt_params(
    xref:RSA.adoc[RSA] const* r,
    xref:BIGNUM.adoc[BIGNUM] const** dmp1,
    xref:BIGNUM.adoc[BIGNUM] const** dmq1,
    xref:BIGNUM.adoc[BIGNUM] const** iqmp);
----

[WARNING]
====
https://en.cppreference.com/cpp/language/attributes/deprecated[Deprecated^]. Use of this entity is allowed but discouraged.
====
== Parameters

[cols="1,4"]
|===
| Name| Description
| *r*
| RSA key to query.
| *dmp1*
| Receives dmp1, or NULL to skip; do not free.
| *dmq1*
| Receives dmq1, or NULL to skip; do not free.
| *iqmp*
| Receives iqmp, or NULL to skip; do not free.
|===


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