[#EVP_PKEY_CTX_get_rsa_oaep_md_name]
= EVP_PKEY_CTX_get_rsa_oaep_md_name
:mrdocs:

Get the RSA‐OAEP message‐digest algorithm name from an EVP_PKEY_CTX.

== Synopsis

Declared in `<openssl/rsa.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
EVP_PKEY_CTX_get_rsa_oaep_md_name(
    xref:EVP_PKEY_CTX.adoc[EVP_PKEY_CTX]* ctx,
    char* name,
    size_t namelen);
----

== Return Value

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

== Parameters

[cols="1,4"]
|===
| Name| Description
| *ctx*
| Context whose padding mode must be RSA_PKCS1_OAEP_PADDING.
| *name*
| Buffer receiving the NUL‐terminated digest name.
| *namelen*
| Capacity of `name` in bytes.
|===


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