[#DSA_generate_parameters_ex]
= DSA_generate_parameters_ex
:mrdocs:

Generate DSA domain parameters into an existing DSA object (deprecated).

== Synopsis

Declared in `<openssl/dsa.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[deprecated]]
int
DSA_generate_parameters_ex(
    xref:DSA.adoc[DSA]* dsa,
    int bits,
    unsigned char const* seed,
    int seed_len,
    int* counter_ret,
    unsigned long* h_ret,
    xref:BN_GENCB.adoc[BN_GENCB]* cb);
----

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

1 on success, or 0 on failure.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *dsa*
| Destination DSA that receives p, q, and g.
| *bits*
| Desired length of the prime p in bits.
| *seed*
| Optional seed for deterministic generation, or NULL.
| *seed_len*
| Length of `seed` in bytes.
| *counter_ret*
| Optional output for the generation counter, or NULL.
| *h_ret*
| Optional output for the generator counter h, or NULL.
| *cb*
| Optional progress callback, or NULL.
|===


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