diff options
| author | Theo Buehler <tb@cvs.openbsd.org> | 2024-11-15 20:14:59 +0000 |
|---|---|---|
| committer | Theo Buehler <tb@cvs.openbsd.org> | 2024-11-15 20:14:59 +0000 |
| commit | 7faa7bf3840229486d4956280b0cb1fedbe1670a (patch) | |
| tree | d93f67f8704e3942cbbd5cd81406a7efa8e3cb10 /lib/libcrypto/man | |
| parent | 82518e25ad6dc54aae5342a62f4f8540d7831666 (diff) | |
Use a better curve and a better hash for the ECDSA_do_sign() example
(Many examples in this directory are really bad. This is no exception.)
Diffstat (limited to 'lib/libcrypto/man')
| -rw-r--r-- | lib/libcrypto/man/ECDSA_SIG_new.3 | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/lib/libcrypto/man/ECDSA_SIG_new.3 b/lib/libcrypto/man/ECDSA_SIG_new.3 index c9ef8e81432..2b72e6f1b98 100644 --- a/lib/libcrypto/man/ECDSA_SIG_new.3 +++ b/lib/libcrypto/man/ECDSA_SIG_new.3 @@ -1,4 +1,4 @@ -.\" $OpenBSD: ECDSA_SIG_new.3,v 1.20 2023/08/29 10:07:42 tb Exp $ +.\" $OpenBSD: ECDSA_SIG_new.3,v 1.21 2024/11/15 20:14:58 tb Exp $ .\" full merge up to: OpenSSL e9b77246 Jan 20 19:58:49 2017 +0100 .\" selective merge up to: OpenSSL da4ea0cf Aug 5 16:13:24 2019 +0100 .\" @@ -50,7 +50,7 @@ .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED .\" OF THE POSSIBILITY OF SUCH DAMAGE. .\" -.Dd $Mdocdate: August 29 2023 $ +.Dd $Mdocdate: November 15 2024 $ .Dt ECDSA_SIG_NEW 3 .Os .Sh NAME @@ -342,8 +342,8 @@ error. The error codes can be obtained by .Xr ERR_get_error 3 . .Sh EXAMPLES -Creating an ECDSA signature of given SHA-1 hash value using the named -curve secp192k1. +Creating an ECDSA signature of given SHA-384 hash value using the named +curve secp384r1. .Pp First step: create an .Vt EC_KEY @@ -356,7 +356,7 @@ int ret; ECDSA_SIG *sig; EC_KEY *eckey; -eckey = EC_KEY_new_by_curve_name(NID_secp192k1); +eckey = EC_KEY_new_by_curve_name(NID_secp384r1); if (eckey == NULL) { /* error */ } @@ -365,10 +365,10 @@ if (!EC_KEY_generate_key(eckey)) { } .Ed .Pp -Second step: compute the ECDSA signature of a SHA-1 hash value using +Second step: compute the ECDSA signature of a SHA-384 hash value using .Fn ECDSA_do_sign .Bd -literal -offset indent -sig = ECDSA_do_sign(digest, 20, eckey); +sig = ECDSA_do_sign(digest, SHA384_DIGEST_LENGTH, eckey); if (sig == NULL) { /* error */ } @@ -391,12 +391,12 @@ if (!ECDSA_sign(0, dgst, dgstlen, pp, &buf_len, eckey) { Third step: verify the created ECDSA signature using .Fn ECDSA_do_verify .Pp -.Dl ret = ECDSA_do_verify(digest, 20, sig, eckey); +.Dl ret = ECDSA_do_verify(digest, SHA384_DIGEST_LENGTH, sig, eckey); .Pp or using .Fn ECDSA_verify .Pp -.Dl ret = ECDSA_verify(0, digest, 20, buffer, buf_len, eckey); +.Dl ret = ECDSA_verify(0, digest, SHA384_DIGEST_LENGTH, buffer, buf_len, eckey); .Pp and finally evaluate the return value: .Bd -literal -offset indent |