Hi Experts, I am new to openssl. Here is what I 'd like to do: I need to use ECDSA to sign a message. To start with I 'd like run some tests using NIST ECDSA SigGen vectors. They look like this example:
Msg = 6b45d88037392e1371d9fd1cd174e9c1838d11c3d6133dc17e65fa0c485dcca9f52d41b60161246039e42ec784d49400bffdb51459f5de654091301a09378f93464d52118b48d44b30d781eb1dbed09da11fb4c818dbd442d161aba4b9edc79f05e4b7e401651395b53bd8b5bd3f2aaa6a00877fa9b45cadb8e648550b4c6cbe d = 201b432d8df14324182d6261db3e4b3f46a8284482d52e370da41e6cbdf45ec2952f5db7ccbce3bc29449f4fb080ac97 Qx = c2b47944fb5de342d03285880177ca5f7d0f2fcad7678cce4229d6e1932fcac11bfc3c3e97d942a3c56bf34123013dbf Qy = 37257906a8223866eda0743c519616a76a758ae58aee81c5fd35fbf3a855b7754a36d4a0672df95d6c44a81cf7620c2d k = dcedabf85978e090f733c6e16646fa34df9ded6e5ce28c6676a00f58a25283db8885e16ce5bf97f917c81e1f25c9c771 R = 50835a9251bad008106177ef004b091a1e4235cd0da84fff54542b0ed755c1d6f251609d14ecf18f9e1ddfe69b946e32 S = 0475f3d30c6463b646e8d3bf2455830314611cbde404be518b14464fdb195fdcc92eb222e61f426a4a592c00a6a89721 So I plan to use "openssl dgst -<hash algorithm> -out <my-file.signed> -sign <my-priv-key> <my-file.unsigned>" Obviously "my-priv-key" should be the "d" in the test vector. The questions are: How should I use "d" in openssl dgst command line? Should it be converted to PEM format? If so how do I do that? Thanks in advance. David
