[#EVP_PKEY_CTX_get_rsa_pss_saltlen]
= EVP_PKEY_CTX_get_rsa_pss_saltlen
:mrdocs:

Get the RSA‐PSS salt length configured on an EVP_PKEY_CTX.

== Synopsis

Declared in `<openssl/rsa.h>`

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

== Return Value

1 on success, or a negative value for unsupported / failure.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *ctx*
| Context whose padding mode must already be RSA_PKCS1_PSS_PADDING.
| *saltlen*
| Receives the salt length (or a special RSA_PSS_SALTLEN_* value).
|===


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