SM2 private key cannot produce valid signatures #8435
Description
-----BEGIN PRIVATE KEY-----
MEECAQAwEwYHKoZIzj0CAQYIKoEcz1UBgi0EJzAlAgEBBCD////+////////////////cgPfayHG
BStTu/QJOdVBIg==
-----END PRIVATE KEY-----
Above private key cannot produce valid digital signatures:
openssl pkey -in sm2_bad.key -pubout > sm2_bad.key.pub
openssl pkeyutl -inkey sm2_bad.key -in /etc/lsb-release -rawin -sign -pkeyopt sm2_id:Alice > sm2_bad.sig
openssl pkeyutl -inkey sm2_bad.key.pub -pubin -in /etc/lsb-release -rawin -verify -pkeyopt sm2_id:Alice -sigfile sm2_bad.sig
Signature Verification Failure
@InfoHunter What does the spec say about key generation?