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-rw-r--r--doc/man3/EVP_PKEY_CTX_set_rsa_pss_keygen_md.pod5
1 files changed, 3 insertions, 2 deletions
diff --git a/doc/man3/EVP_PKEY_CTX_set_rsa_pss_keygen_md.pod b/doc/man3/EVP_PKEY_CTX_set_rsa_pss_keygen_md.pod
index eb7dfd8a7b..853d4b8d36 100644
--- a/doc/man3/EVP_PKEY_CTX_set_rsa_pss_keygen_md.pod
+++ b/doc/man3/EVP_PKEY_CTX_set_rsa_pss_keygen_md.pod
@@ -42,9 +42,10 @@ returned if an attempt is made to set the padding mode to anything other
than B<PSS>. It is otherwise similar to the B<RSA> version.
The EVP_PKEY_CTX_set_rsa_pss_saltlen() macro is used to set the salt length.
-If the key has usage restrictionsthen an error is returned if an attempt is
+If the key has usage restrictions then an error is returned if an attempt is
made to set the salt length below the minimum value. It is otherwise similar
-to the B<RSA> operation except special negative values are not supported.
+to the B<RSA> operation except detection of the salt length (using -2) is
+not supported for verification if the key has usage restrictions.
The EVP_PKEY_CTX_set_signature_md() and EVP_PKEY_CTX_set_rsa_mgf1_md() macros
are used to set the digest and MGF1 algorithms respectively. If the key has