[#SRP_create_verifier_BN_ex]
= SRP_create_verifier_BN_ex
:mrdocs:

Create SRP salt and verifier BIGNUMs for a user/password.

== Synopsis

Declared in `<openssl/srp.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[deprecated]]
int
SRP_create_verifier_BN_ex(
    char const* user,
    char const* pass,
    xref:BIGNUM.adoc[BIGNUM]** salt,
    xref:BIGNUM.adoc[BIGNUM]** verifier,
    xref:BIGNUM.adoc[BIGNUM] const* N,
    xref:BIGNUM.adoc[BIGNUM] const* g,
    xref:OSSL_LIB_CTX.adoc[OSSL_LIB_CTX]* libctx,
    char const* propq);
----

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

1 on success, 0 on error.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *user*
| User name.
| *pass*
| Password.
| *salt*
| Address of salt pointer: receives a newly allocated salt when *`salt` is NULL, or uses the supplied value.
| *verifier*
| Receives a newly allocated verifier BIGNUM.
| *N*
| Safe prime modulus for the SRP group.
| *g*
| Generator for the SRP group.
| *libctx*
| Library context for algorithm fetching, or NULL for default.
| *propq*
| Property query for algorithm fetching, or NULL.
|===


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