Updates to X509_NAME_get_index_by_NID.pod submitted by user Bernardh via the wiki

[oweals/openssl.git] / doc / crypto / EVP_BytesToKey.pod

diff --git a/doc/crypto/EVP_BytesToKey.pod b/doc/crypto/EVP_BytesToKey.pod
index 10e2be68f508b0d61a6ca08bd2b2d080d1899a0a..cd3aa027ee929e59a4a25b9107e41d0cb9c7ea9e 100644 (file)
--- a/doc/crypto/EVP_BytesToKey.pod
+++ b/doc/crypto/EVP_BytesToKey.pod
@@ -17,7 +17,7 @@ EVP_BytesToKey - password based encryption routine
 
 EVP_BytesToKey() derives a key and IV from various parameters. B<type> is
 the cipher to derive the key and IV for. B<md> is the message digest to use.
-The B<salt> paramter is used as a salt in the derivation: it should point to
+The B<salt> parameter is used as a salt in the derivation: it should point to
 an 8 byte buffer or NULL if no salt is used. B<data> is a buffer containing
 B<datal> bytes which is used to derive the keying data. B<count> is the
 iteration count to use. The derived key and IV will be written to B<key>
@@ -55,11 +55,15 @@ the IV.
 
 =head1 RETURN VALUES
 
-EVP_BytesToKey() returns the size of the derived key in bytes, or 0 on error.
+If B<data> is NULL, then EVP_BytesToKey() returns the number of bytes
+needed to store the derived key.
+Otherwise, EVP_BytesToKey() returns the size of the derived key in bytes,
+or 0 on error.
 
 =head1 SEE ALSO
 
 L<evp(3)|evp(3)>, L<rand(3)|rand(3)>,
+L<PKCS5_PBKDF2_HMAC(3)|PKCS5_PBKDF2_HMAC(3)>,
 L<EVP_EncryptInit(3)|EVP_EncryptInit(3)>
 
 =head1 HISTORY