[#EVP_PKEY_CTX_set_rsa_pss_keygen_saltlen]
= EVP_PKEY_CTX_set_rsa_pss_keygen_saltlen
:mrdocs:

Set the RSA‐PSS salt length used when generating an RSA‐PSS key.

== Synopsis

Declared in `<openssl/rsa.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
EVP_PKEY_CTX_set_rsa_pss_keygen_saltlen(
    xref:EVP_PKEY_CTX.adoc[EVP_PKEY_CTX]* ctx,
    int saltlen);
----

== Return Value

1 on success, or a non‐positive value on failure.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *ctx*
| Keygen context for an RSA‐PSS key type.
| *saltlen*
| Salt length in bytes, or a special value such as RSA_PSS_SALTLEN_DIGEST.
|===


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