diff options
| author | Rich Salz <rsalz@openssl.org> | 2014-09-08 11:48:34 -0400 |
|---|---|---|
| committer | Rich Salz <rsalz@openssl.org> | 2014-10-03 10:39:32 -0400 |
| commit | 20d1c8111f5678f8d6211ce013368852b38eb819 (patch) | |
| tree | f39cd54b58d3d5c211bee0c65fd4346ac0fcb202 /doc/crypto | |
| parent | c578fe37d982e899f7644d041282c54b5f7f6247 (diff) | |
RT3462: Document actions when data==NULL
If data is NULL, return the size needed to hold the
derived key. No other API to do this, so document
the behavior.
Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit 5aed169305941fb1eba15fd4bacc0f998b0e43f7)
Diffstat (limited to 'doc/crypto')
| -rw-r--r-- | doc/crypto/EVP_BytesToKey.pod | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/doc/crypto/EVP_BytesToKey.pod b/doc/crypto/EVP_BytesToKey.pod index cd09b68ca8..5d6059528e 100644 --- a/doc/crypto/EVP_BytesToKey.pod +++ b/doc/crypto/EVP_BytesToKey.pod @@ -55,7 +55,10 @@ 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 |