EVP_KDF_gettable_params(), EVP_KDF_gettable_ctx_params() and
EVP_KDF_settable_ctx_params() get a constant B<OSSL_PARAM> array that
-decribes the retrievable and settable parameters, i.e. parameters that
+describes the retrievable and settable parameters, i.e. parameters that
can be used with EVP_KDF_get_params(), EVP_KDF_CTX_get_params()
and EVP_KDF_CTX_set_params(), respectively.
See L<OSSL_PARAM(3)> for the use of B<OSSL_PARAM> as parameter descriptor.
=item "digest" (B<OSSL_KDF_PARAM_DIGEST>) <UTF8 string>
-For KDF implementations that use an underlying computation MAC or
-digest, these parameters set what the algorithm should be.
+=item "cipher" (B<OSSL_KDF_PARAM_CIPHER>) <UTF8 string>
+
+For KDF implementations that use an underlying computation MAC, digest or
+cipher, these parameters set what the algorithm should be.
The value is always the name of the intended algorithm,
or the properties.