diff options
| author | Theo Buehler <tb@cvs.openbsd.org> | 2023-08-24 04:23:31 +0000 |
|---|---|---|
| committer | Theo Buehler <tb@cvs.openbsd.org> | 2023-08-24 04:23:31 +0000 |
| commit | 6827779d7fd22c23151904262803ef13bc19b626 (patch) | |
| tree | fd0359fffb173f7d22d4a98a088eab43a6c40dda /lib | |
| parent | a2be63bc91a4ade2792f19ee9919e45de2693c3f (diff) | |
Align the documentation of EVP_chacha20() with actual behavior
Incorrect OpenSSL documentation was moved here and inherited parts of a
comment that was fixed in evp/e_chacha.c r1.13. Adjust the manual page
accordingly.
Discussed with schwarze
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/libcrypto/man/EVP_chacha20.3 | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/lib/libcrypto/man/EVP_chacha20.3 b/lib/libcrypto/man/EVP_chacha20.3 index 0dcd7a14c2c..55e730ec9cc 100644 --- a/lib/libcrypto/man/EVP_chacha20.3 +++ b/lib/libcrypto/man/EVP_chacha20.3 @@ -1,4 +1,4 @@ -.\" $OpenBSD: EVP_chacha20.3,v 1.4 2023/08/23 13:46:42 schwarze Exp $ +.\" $OpenBSD: EVP_chacha20.3,v 1.5 2023/08/24 04:23:30 tb Exp $ .\" full merge up to: OpenSSL 35fd9953 May 28 14:49:38 2019 +0200 .\" .\" This file is a derived work. @@ -65,7 +65,7 @@ .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED .\" OF THE POSSIBILITY OF SUCH DAMAGE. .\" -.Dd $Mdocdate: August 23 2023 $ +.Dd $Mdocdate: August 24 2023 $ .Dt EVP_CHACHA20 3 .Os .Sh NAME @@ -93,11 +93,11 @@ argument of 16 bytes = 128 bits, internally using .Xr ChaCha_set_key 3 and .Xr ChaCha_set_iv 3 . -Due to the symmetry of the internal cipher state, interpreting the +The lower 8 bytes = 64 bits of .Fa iv -argument as a 4 byte counter followed by a 12 byte nonce -or interpreting it as an 8 byte counter followed by an 8 byte nonce -is functionally equivalent. +are used as counter and the remaining 8 bytes are used as +the initialization vector of +.Xr ChaCha_set_iv 3 . .Xr EVP_EncryptUpdate 3 , .Xr EVP_EncryptFinal_ex 3 , .Xr EVP_DecryptUpdate 3 , |